# EVI Solutions

> EVI Solutions (EVI Solutions DOO) is a software and AI company from Belgrade, Serbia (founded 2021). We build custom software and SaaS products, AI automation (AI agents for documents, email, CRM and reporting), private AI assistants over company documents (RAG), websites, web shops, and we maintain IT infrastructure, act as an external (fractional) CTO, and join selected startups as technical co-founder in exchange for equity. The team also built Intrascope (https://intrascope.app), an enterprise AI workspace.

Contact: office@evi.rs, +381 62 28 22 082, Topčiderska ulica 14, 11000 Belgrade, Serbia. Company ID (MB) 21975567, VAT (PIB) 114128395.
Languages: Srpski (latinica) (https://evi.rs), Српски (ћирилица) (https://evi.rs/sr-cyrl), English (https://evi.rs/en), Deutsch (https://evi.rs/de), Русский (https://evi.rs/ru), Türkçe (https://evi.rs/tr).

## Services (English)

- [Software and product development](https://evi.rs/en/services/custom-software-development): Web and mobile apps, SaaS platforms and MVPs in 4 to 8 weeks. Laravel, Node.js, Next.js, React, Python. A nearshore team from Belgrade for clients in the EU, UK and US.
- [AI automation](https://evi.rs/en/services/ai-automation): AI process automation: AI agents, invoice and document processing, email and ticket triage, CRM, reporting and chatbots. Secure, with measurable savings.
- [Process improvement](https://evi.rs/en/services/business-process-improvement): Digital transformation without the noise: we map processes, remove manual work, connect systems and introduce dashboards. Measurable results in 30 to 90 days.
- [AI assistant over documents (RAG)](https://evi.rs/en/services/ai-document-assistant-rag): A private AI assistant that answers from your company documents with cited sources: regulations, contracts, procedures, technical docs. RAG development services.
- [Website development](https://evi.rs/en/services/website-development): Fast, SEO-optimized websites that generate inquiries: Next.js, WordPress, Webflow. Multilingual sites, UI/UX design and AI chatbots.
- [Web shop development](https://evi.rs/en/services/ecommerce-development): Fast online stores that sell: WooCommerce, Shopify and headless Next.js. Card payments, couriers, ERP and inventory sync, SEO and AI product descriptions.
- [IT infrastructure maintenance](https://evi.rs/en/services/it-infrastructure-maintenance): Maintenance of computers, servers and networks, Microsoft 365, backup, security, 24/7 monitoring and helpdesk for companies. Monthly plans or on demand.
- [External CTO](https://evi.rs/en/services/external-cto): External CTO for companies and startups: technical strategy, vendor oversight and representation at technical meetings as your company's CTO, with full system maintenance. Belgrade.
- [Local AI (LLM and SLM)](https://evi.rs/en/services/local-ai-llm-for-business): Local AI (LLM and SLM) on a server in your company: data does not leave the company, no monthly per-user licenses. Indicative hardware prices for 2026 and a savings example.
- [Technical Co-founder](https://evi.rs/en/technical-co-founder): No technical team? EVI Solutions joins as your technical co-founder: we build your startup for free in exchange for equity. Send your pitch, decision within 48 hours.

## Usluge (srpski)

- [Razvoj softvera i proizvoda](https://evi.rs/usluge/razvoj-softvera): Izrada web i mobilnih aplikacija, SaaS platformi i MVP-a za 4 do 8 nedelja. Laravel, Node.js, Next.js, React, Python. Beograd, za klijente iz Srbije i EU.
- [AI automatizacija](https://evi.rs/usluge/ai-automatizacija): AI automatizacija procesa: AI agenti, obrada faktura i dokumenata, email i tiketi, CRM, izveštaji, chatbotovi. Bezbedno, sa merljivom uštedom. Beograd.
- [Unapređenje procesa](https://evi.rs/usluge/unapredjenje-poslovnih-procesa): Digitalna transformacija bez buke: mapiramo procese, uklanjamo ručni rad, povezujemo sisteme i uvodimo dashboarde. Merljivi rezultati za 30 do 90 dana.
- [AI asistent nad dokumentima (RAG)](https://evi.rs/usluge/ai-asistent-za-dokumentaciju): Privatni AI asistent koji odgovara iz dokumenata vaše firme, sa citiranim izvorom: propisi, ugovori, procedure, tehnička dokumentacija. RAG razvoj u Srbiji.
- [Izrada sajtova](https://evi.rs/usluge/izrada-sajtova): Izrada brzih, SEO optimizovanih sajtova koji donose upite: Next.js, WordPress, Webflow. Višejezični sajtovi, UI/UX dizajn, AI chatbot. Beograd i cela Srbija.
- [Izrada web prodavnica](https://evi.rs/usluge/izrada-web-prodavnice): Izrada brzih web prodavnica koje prodaju: WooCommerce, Shopify i headless Next.js. Plaćanje karticama, kuriri, ERP i lager, SEO i AI opisi proizvoda.
- [Održavanje IT infrastrukture](https://evi.rs/usluge/odrzavanje-it-infrastrukture): Održavanje računara, servera i mreža, Microsoft 365, backup, bezbednost, monitoring 24/7 i helpdesk za firme. Mesečni paket ili po potrebi. Beograd i Srbija.
- [Eksterni CTO](https://evi.rs/usluge/eksterni-cto): Eksterni CTO za firme i startape: tehnička strategija, kontrola dobavljača i učešće na tehničkim sastancima kao CTO vaše firme, uz održavanje celog sistema. Beograd.
- [Lokalni AI (LLM i SLM)](https://evi.rs/usluge/lokalni-ai-llm-u-firmi): Lokalni AI (LLM i SLM) na serveru u vašoj firmi: podaci ne napuštaju kompaniju, bez mesečnih licenci po korisniku. Okvirne cene hardvera za 2026. i primer uštede.
- [Tehnički suosnivač](https://evi.rs/tehnicki-suosnivac): Nemate tehnički tim? EVI Solutions ulazi kao tehnički suosnivač: razvijamo vaš startap bez naplate, u zamenu za vlasnički udeo. Pošaljite pitch, odluka za 48 sati.

## Case studies

- [AI assistant for tax and legal regulations](https://evi.rs/en/projects/ai-assistant-for-tax-and-legal-regulations): A RAG system over a huge regulatory database for a large consultancy
- [Intrascope](https://evi.rs/en/projects/intrascope): An AI workspace and control layer for companies
- [MyMiniJob](https://evi.rs/en/projects/myminijob): A hybrid recruitment platform for the German market
- [Webinars.rs](https://evi.rs/en/projects/webinars): A SaaS platform for organizing and monetizing webinars
- [VK Fitness app](https://evi.rs/en/projects/fitness-app-with-ai-coach): A fitness app with an AI coach and calorie estimation

## AI news

- [AI news](https://evi.rs/en/ai-news): daily AI news summaries with sources (RSS: https://evi.rs/rss/en.xml)

## Free AI IT assistant and tools

- [AI IT assistant 24/7](https://evi.rs/en/ai-it-assistant): Having trouble with your computer, internet, printer or website? Free AI IT assistant 24/7 in English: choose an area, send a screenshot of the error and get a step-by-step solution.
  - [Computer or laptop problem](https://evi.rs/en/ai-it-assistant/computer-and-laptop): Slow computer, blue screen, laptop won't turn on or is overheating? Describe the problem or send a screenshot of the error and get a step-by-step solution. Free, 24/7.
  - [Internet or network problem](https://evi.rs/en/ai-it-assistant/internet-and-network): Wi-Fi works but there's no internet, weak signal, router resets or VPN doesn't work? AI assistant guides you step by step to a solution. Free, in English.
  - [Email or Office problem](https://evi.rs/en/ai-it-assistant/email-and-office): Outlook won't send mail, mailbox full, Microsoft 365 license or Excel error? Free AI assistant 24/7 with a step-by-step solution.
  - [Printer or scanner problem](https://evi.rs/en/ai-it-assistant/printer): Printer is offline, documents are stuck in the print queue, scanner doesn't work or you need a driver? AI assistant guides you to a solution. Free, 24/7, in English.
  - [AI assistant for website and domain](https://evi.rs/en/ai-it-assistant/website-and-domain): Website down, showing error 500, no SSL, WordPress hacked or slow? AI assistant for websites helps 24/7 and searches the web for a solution.
  - [Phone or tablet problem](https://evi.rs/en/ai-it-assistant/phone-and-tablet): iPhone or Android won't sync email, no storage, app crashes or battery drains fast? AI assistant offers a step-by-step solution, free.
  - [Viruses, phishing and security](https://evi.rs/en/ai-it-assistant/viruses-and-security): Suspicious email, virus on the computer, hacked account or ransomware? AI assistant tells you what to do immediately and how to protect yourself. Free, 24/7.
  - [Other IT questions](https://evi.rs/en/ai-it-assistant/other-it-questions): Which computer should I buy, how do I set up a program, what's the difference between two options? Ask the free AI IT assistant any IT question, 24/7.
- [Website cost calculator](https://evi.rs/en/tools/website-cost-calculator): An estimated price and timeline for a website, store or web app
- [AI automation ROI calculator](https://evi.rs/en/tools/ai-automation-roi-calculator): Hours and money saved by automation and when it pays off
- [LLM API cost calculator](https://evi.rs/en/tools/llm-api-cost-calculator): Monthly token cost for GPT, Claude, Gemini and DeepSeek
- [Can my computer run a local AI model?](https://evi.rs/en/tools/can-my-computer-run-a-local-llm): Check VRAM and RAM for Llama, Qwen, Mistral and other models
- [RAG calculator: chunks and embeddings](https://evi.rs/en/tools/rag-chunk-and-embedding-calculator): Chunk count, embedding cost and vector database size
- [Meta tag generator and Google preview](https://evi.rs/en/tools/meta-tag-generator): Title, description and Open Graph tags with a SERP preview
- [robots.txt generator](https://evi.rs/en/tools/robots-txt-generator): Create robots.txt and block AI bots in one click
- [llms.txt generator](https://evi.rs/en/tools/llms-txt-generator): A file that helps ChatGPT and AI search engines understand your site
- [FAQ schema generator](https://evi.rs/en/tools/faq-schema-generator): JSON-LD for FAQs, ready for Google
- [Strong password generator](https://evi.rs/en/tools/strong-password-generator): Random, secure passwords generated in your browser
- [Password strength checker](https://evi.rs/en/tools/password-strength-checker): How long it would take to crack your password
- [QR code generator](https://evi.rs/en/tools/qr-code-generator): QR codes for links, WiFi, email or phone, PNG and SVG
- [Serbian Cyrillic to Latin converter](https://evi.rs/en/tools/serbian-cyrillic-latin-converter): Transliterate Serbian text in both directions
- [JSON formatter and validator](https://evi.rs/en/tools/json-formatter-validator): Format, minify and validate JSON
- [Base64 encoder and decoder](https://evi.rs/en/tools/base64-encoder-decoder): Encode and decode text and files
- [UTM link builder](https://evi.rs/en/tools/utm-link-builder): Campaign tracking links for Google Analytics
- [Image compressor and WebP converter](https://evi.rs/en/tools/image-compressor-webp-converter): Shrink images and convert them to WebP or AVIF
- [Word and character counter](https://evi.rs/en/tools/word-and-character-counter): Words, characters, sentences and reading time
- [URL slug generator](https://evi.rs/en/tools/url-slug-generator): Clean URLs from titles, including Cyrillic
- [VAT calculator](https://evi.rs/en/tools/vat-calculator): Add or remove VAT at 20%, 19%, 10% and other rates
- [CV generator](https://evi.rs/en/tools/cv-generator): Create a PDF CV in 5 minutes, 5 professional templates
- [Proforma and quote generator](https://evi.rs/en/tools/proforma-and-quote-generator): Proforma, quote or invoice as PDF, with VAT and logo
- [Email signature generator](https://evi.rs/en/tools/email-signature-generator): Professional signature for Gmail and Outlook, 3 templates
- [JPG to PDF](https://evi.rs/en/tools/jpg-to-pdf): Combine images (JPG, PNG, WebP) into one PDF
- [Merge PDF files](https://evi.rs/en/tools/merge-pdf-files): Combine multiple PDFs into one, without sending to a server

## IT knowledge base

- [IT knowledge base: fixes for PCs, phones, networks and websites](https://evi.rs/en/knowledge-base): Free IT knowledge base with 200+ step-by-step fixes: Windows, Mac, Android, iPhone, printers, Wi-Fi, Outlook, WordPress, security and more.
  - [Windows](https://evi.rs/en/knowledge-base/windows): The most common Windows 10 and Windows 11 problems and solutions: slow computer, updates, blue screen, login, drivers, disk space and activation. Step by step guides.
  - [macOS and Mac](https://evi.rs/en/knowledge-base/macos): Mac running slow, update won't finish, disk is full or the spinning beachball appears? Step by step guides for the most common macOS problems, for home and business users.
  - [Android phones](https://evi.rs/en/knowledge-base/android): Fix Android phone problems: battery drains fast, charging not working, storage full, apps crashing, Google Play errors and data transfer.
  - [iPhone and iPad](https://evi.rs/en/knowledge-base/iphone-and-ipad): The most common iPhone and iPad problems: iCloud full, battery, update, Apple ID, Wi-Fi. Learn how to fix them yourself, step by step.
  - [Printers and scanners](https://evi.rs/en/knowledge-base/printers-and-scanners): Printer offline, paper jam or print queue not working? Step by step guides for Windows and network printers, scanning and drivers.
  - [Internet, WiFi and network](https://evi.rs/en/knowledge-base/internet-wifi-and-network): Slow connection, WiFi that keeps dropping, no internet even though you are connected, DNS errors, router reset, weak signal, mesh and VPN: practical step by step guides for home and business.
  - [Email and Outlook](https://evi.rs/en/knowledge-base/email-and-outlook): Most common email and Outlook problems: not sending or receiving mail, password prompts, mailbox full, PST/OST errors, spam, IMAP/Exchange setup, signature, search, Gmail and automatic replies. Step by step solutions.
  - [Microsoft 365, Office and Teams](https://evi.rs/en/knowledge-base/microsoft-365-and-office): Office not working, Excel slow, Word file corrupted, OneDrive not syncing, Teams camera not working? Step by step guides for Microsoft 365 and Office.
  - [WordPress](https://evi.rs/en/knowledge-base/wordpress): Fix WordPress errors: white screen, critical error, database connection, malware and redirects, slow site, plugin conflicts and update issues.
  - [Website, domain and hosting](https://evi.rs/en/knowledge-base/website-domain-hosting): Site not working, SSL error, domain expired or email going to spam? Step-by-step guides for domain, hosting, DNS, SPF, DKIM, DMARC and site speed.
  - [Security and viruses](https://evi.rs/en/knowledge-base/security-and-viruses): Hacked email or account, clicked on a phishing link, computer has a virus or ransomware: learn the first steps, how to protect yourself and who to contact.
  - [Backup and Data Recovery](https://evi.rs/en/knowledge-base/backup-and-data-recovery): Lost files or disk not recognized? Step-by-step guides to recover deleted data, back up using the 3-2-1 rule and move to a new computer.
  - [Buying Computers and Equipment](https://evi.rs/en/knowledge-base/buying-computers-and-equipment): Practical guides for buying computers, laptops, monitors, printers, routers and UPS devices. Find out how much RAM and SSD you need and what is worth it in 2026.
  - [Hardware and Components](https://evi.rs/en/knowledge-base/hardware-and-components): Laptop overheating, computer won't turn on or no image on the monitor? Step-by-step guides for hardware problems and computer upgrades.
  - [Programming and debugging](https://evi.rs/en/knowledge-base/programming-and-debugging): Guides for resolving the most common programming errors: git conflicts, npm dependencies, CORS, Docker, Python venv, SSL, database and much more.
  - [Servers and Linux](https://evi.rs/en/knowledge-base/servers-and-linux): Server and Linux problems and solutions: disk full, SSH errors, file permissions, systemd services, nginx 502, cron, RDP, Active Directory and certificates. Step-by-step guides.
  - [Browsers and Google Account](https://evi.rs/en/knowledge-base/browsers-and-google-account): Chrome slow or blocked, ads popping up, passwords not saved, Google account locked? Step-by-step guides in English for a quick fix.
  - [Video calls and equipment](https://evi.rs/en/knowledge-base/video-calls-zoom-teams-meet): Camera not detected, microphone not working, others can't hear you or there's an echo? Step-by-step guides for Zoom, Teams and Meet, plus equipment settings.
  - [AI tools](https://evi.rs/en/knowledge-base/ai-tools): ChatGPT errors, hallucinations, privacy, Copilot in Microsoft 365, better prompts, AI for Excel and local AI: practical solutions for businesses in Serbia.

## Blog

- [GEO: how to get recommended by ChatGPT, Perplexity and Google AI](https://evi.rs/en/blog/geo-how-to-get-recommended-by-chatgpt): Generative Engine Optimization in practice: how to make your company appear in AI assistant answers. Content structure, llms.txt, schema, citations and speed.
- [What is RAG and how does it work: a guide for companies that want AI over their documents](https://evi.rs/en/blog/what-is-rag-guide-for-companies): RAG (Retrieval Augmented Generation) explained simply: how AI answers from your company documents, why it does not make things up, what vectorization is and what it costs.
- [How we built an AI assistant for tax and legal regulations](https://evi.rs/en/blog/ai-assistant-for-tax-and-legal-regulations-case-study): Case study: a RAG system over a huge regulatory database for a large consultancy. Architecture, challenges, phases and results: MVP in 2 months, full system in 5.
- [How much does a custom app cost in 2026](https://evi.rs/en/blog/how-much-does-a-custom-app-cost): Realistic price ranges for web and mobile apps, MVPs and SaaS platforms, what drives the price and how to get an accurate estimate without surprises.
- [RAG or fine-tuning: how to make AI really know your company](https://evi.rs/en/blog/rag-vs-fine-tuning): When to use RAG, when fine-tuning and when both. A comparison by accuracy, cost, freshness, security and time to implement.
- [12 processes every company can automate with AI this month](https://evi.rs/en/blog/processes-every-company-can-automate-with-ai): A concrete list of processes for AI automation: invoices, email, quotes, CRM, reporting, HR, support and content, with savings potential and difficulty.
- [How to build an AI assistant over your company documents: 7 steps](https://evi.rs/en/blog/how-to-build-an-ai-assistant-over-company-documents): A practical plan for introducing a private AI assistant (RAG): from choosing documents and preparing data to measuring accuracy, permissions and going live.
- [Automated invoice processing with AI and OCR: how it works and what it saves](https://evi.rs/en/blog/automated-invoice-processing-ai-ocr): How AI reads incoming invoices, extracts data, validates it and enters it into your ERP. Accuracy, controls, integrations and realistic savings for accounting teams.
- [Vector databases explained: pgvector, Qdrant, Pinecone and what to choose](https://evi.rs/en/blog/vector-databases-explained): What a vector database is, how semantic search works and how to choose between pgvector, Qdrant, Pinecone, Weaviate and Chroma for a RAG project.
- [An AI chatbot for your website: how to make it bring leads, not frustration](https://evi.rs/en/blog/ai-chatbot-for-websites-that-brings-leads): What separates a good AI chatbot from a bad one: product knowledge, clear handover to a human, lead capture and measurement. Examples, costs and rollout tips.
- [Local AI (LLM) for companies: when it pays off and what hardware you need](https://evi.rs/en/blog/local-llm-for-companies): When a company needs an AI model on its own server, which open models are good enough, how much VRAM you need and how local AI compares with cloud APIs on cost.
- [An MVP in 6 weeks: how we plan and ship a product's first version](https://evi.rs/en/blog/mvp-in-6-weeks): Week by week: workshop, prototype, development, testing and launch of an MVP. How we decide what goes into version one and how we measure success.
- [n8n, Make, Zapier or a custom integration: what to choose for automation](https://evi.rs/en/blog/n8n-vs-make-vs-zapier-vs-custom-integration): A comparison of automation tools: price, flexibility, privacy, AI capabilities and when it is better to build a custom integration.
- [IT infrastructure maintenance: a checklist for small and mid-sized companies](https://evi.rs/en/blog/it-infrastructure-maintenance-checklist): Daily, weekly, monthly and yearly IT checks: backups, updates, security, accounts, network and documentation. A practical list for companies with 5 to 200 employees.
- [AI agents in 2026: what they can really do and where they still fail](https://evi.rs/en/blog/ai-agents-what-they-can-do): A realistic look at AI agents for business: which tasks they handle reliably, where the risks are, how to design controls and what rolling out an agent looks like.
- [Next.js or WordPress for a business website: which to choose](https://evi.rs/en/blog/nextjs-or-wordpress-for-business-website): Next.js vs WordPress compared on speed, SEO, security, cost, content editing and maintenance. When each one is the better choice.
- [How much does AI automation cost and how to calculate ROI](https://evi.rs/en/blog/ai-automation-cost-and-roi): What makes up the price of AI automation, the monthly cost of models and how to calculate ROI and payback period with a real-world example.
- [Multilingual websites and SEO: hreflang, multiple scripts and mistakes that cost rankings](https://evi.rs/en/blog/multilingual-website-seo-hreflang): How to build a multilingual website Google indexes correctly: URL structure, hreflang, x-default, Cyrillic and Latin versions, translations and sitemaps.
- [Data security and AI: what every company needs to know](https://evi.rs/en/blog/ai-data-security-for-companies): How to use ChatGPT, Claude and other AI tools without leaking business data: business agreements, GDPR, permissions, local models and internal policies.
- [Shadow AI: the risk when employees use ChatGPT on their own](https://evi.rs/en/blog/shadow-ai-risk): Shadow AI is the use of AI tools without the company's knowledge. The risks for data, costs and quality, and how to replace it with a controlled AI workspace.
- [How to choose an AI model: GPT, Claude, Gemini, DeepSeek or open models](https://evi.rs/en/blog/how-to-choose-an-ai-model): A practical guide to choosing an AI model for business tasks: quality, speed, price, language support, privacy and why using several models is best.
- [How much can AI help developers: ChatGPT, Claude and Copilot in daily work](https://evi.rs/en/blog/how-ai-helps-developers-chatgpt-claude-copilot): How AI tools speed up software development, where they really save time, where they fail and how to roll them out safely across a team.
- [How to keep code clean and scalable for years](https://evi.rs/en/blog/keeping-code-clean-and-scalable): Long-term software health depends on discipline: standards, code review, tests, modularity and documentation. The practices we use on multi-year projects.
- [EU vs US clients: work culture differences outsourcing teams need to know](https://evi.rs/en/blog/eu-vs-us-clients-outsourcing-work-culture): How EU and US clients approach working with development teams differently: documentation, speed, communication and expectations, with practical tips.
- [Laravel vs Node.js for SaaS: how to choose for faster growth](https://evi.rs/en/blog/laravel-vs-nodejs-for-saas): A practical guide to choosing a SaaS backend: when Laravel wins, when Node.js wins and when to combine them. Lessons from Webinars.rs and Intrascope.
- [10 common web project mistakes and how to avoid them](https://evi.rs/en/blog/10-common-web-project-mistakes): From poor planning to weak communication: ten mistakes that wreck web project timelines and budgets, and concrete tips to avoid them.
- [An AI agent in IT support: does it really take pressure off the team?](https://evi.rs/en/blog/ai-agent-in-it-support): What an AI agent can solve in IT support, where you still need people and the results we saw: 42% of tickets resolved automatically, response time from 12 to 2 minutes.
- [How AI is changing the way we build software](https://evi.rs/en/blog/how-ai-is-changing-software-development): AI is no longer just an assistant but a member of the development team. How speed, quality and the developer's role are changing, and what it means for companies that commission software.
- [The real value of DevOps: how we cut deploy time from 40 to 3 minutes](https://evi.rs/en/blog/devops-deploy-from-40-to-3-minutes): Case study: CI/CD, Docker, automated tests and automatic rollback cut releases from 40 to 3 minutes and reduced incidents.
- [What we learned from mistakes building our first product version (MVP)](https://evi.rs/en/blog/what-we-learned-from-our-first-mvp): Mistakes we made on our own MVP and how we fixed them: too many features, no feedback loop, neglected onboarding. Lessons for every founder.
- [UX design and conversions: 58% more purchases after a checkout redesign](https://evi.rs/en/blog/ux-design-and-conversions-case-study): Case study: how a UX redesign of navigation and checkout increased completed purchases by 58% and cut abandoned carts from 42% to 18%.

## Optional

- [Full text for LLMs](https://evi.rs/llms-full.txt)
- [About](https://evi.rs/en/about)
- [Contact](https://evi.rs/en/contact)
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