Yes, there are several free AI apps with official apps on iPhone and Android. The 8 best in 2026 are: ChatGPT, Gemini, Claude, Copilot, Perplexity, DeepSeek, Meta AI (WhatsApp), and Poe. All with functional free versions — the choice depends on what you want to do.
1. ChatGPT — the standard
- Download: iOS / Android
- Worth it as: your first AI app, unmatched
- Detail: on iPhone 15+, you can activate with voice “Hey Siri, open ChatGPT”
See what changes between free and paid ChatGPT versions.
2. Google Gemini
- Download: iOS / Android
- Worth it if: you use Gmail and Docs
- Detail: on many new Androids, it replaces Google Assistant by default
Check how to use Google’s AI in detail.
3. Claude
- Download: iOS / Android
- Worth it for: writing, reviewing text, analyzing PDFs
- Detail: cleanest interface among all, focus on conversation
4. Microsoft Copilot
- Download: iOS / Android
- Worth it if: you want GPT-4/5 without an OpenAI account
- Detail: generates free images via DALL-E 3 without obscenely restrictive limits
5. Perplexity
- Download: iOS / Android
- Worth it for: researching with cited sources
- Detail: excellent voice mode for driving, as an intelligent assistant
6. DeepSeek
- Download: DeepSeek on App Store / Play Store
- Worth it for: programming and math. And rarest: no usage limit
- Detail: being Chinese, some prefer to avoid for data reasons
7. Meta AI (inside WhatsApp/Instagram)
- Download: already in WhatsApp and Instagram — blue circle button
- Worth it for: those who want AI without downloading anything new
- Detail: can stay inside WhatsApp groups answering questions
8. Poe
- Download: iOS / Android
- Worth it for: having several AIs in one app
- Detail: from Quora. Gives access to ChatGPT, Claude, Gemini, and others in a single place. Free with generous limit; paid unlocks more.
Apps comparison table
| App | Best for | Free limit (approx.) |
|---|---|---|
| ChatGPT | General use | ~40 msgs/3h with GPT-5 |
| Gemini | Google integration | Generous |
| Claude | Writing, PDF | ~30 msgs/5h |
| Copilot | Without OpenAI signup | Generous |
| Perplexity | Research with sources | ~5 Pro searches/day |
| DeepSeek | Code, math | Practically unlimited |
| Meta AI | Already installed | Practically unlimited |
| Poe | Multiple AIs in one | ~3000 points/day |
Which to install first?
- Never used AI → ChatGPT (easiest)
- Use Google a lot daily → Gemini
- Want one that records voice answering while I walk → Perplexity or Gemini
- Already use WhatsApp all day → Meta AI (already there)
- I program → DeepSeek
Our recommendation: install 2 different AI apps from the start. That way you learn to compare and don’t get stuck with just one.
What to do after installing
- Read what is AI and what it’s for if you don’t know the basics
- Start with our beginner guide on how to use AI
- See 10 examples of AI in daily life for practical ideas
- Compare with the ranking of most used AIs and the best free AI
In 1 week of use, you feel the difference. In 1 month, you can’t imagine a routine without AI.