Gemini
Gemini is the best AI app for Android because it is not really just an app. On most new Android phones it has replaced Google Assistant, so a long press of the power button or "Hey Google" opens it over whatever you are doing. From there it can read your screen, add events to Calendar, find an email in Gmail, plan a route in Maps or pull photos from Google Photos.
Gemini Live, its voice mode, lets you share your camera or screen and talk through what you see, and it works on Wear OS watches and in Android Auto too. The free tier is strong, and Google AI Plus at $4.99 a month adds more AI plus 400 GB of storage. Its Google Play rating is 4.6 from about 46.7 million reviews.
The main downside is privacy. Gemini works best when it can see your Google data, and human reviewers may read some chats unless you turn off Gemini Apps Activity. Some users also miss old Assistant routines that do not work the same way yet.
Pick it if you have an Android phone; it is already the best-integrated assistant. Skip it if you avoid Google services or want the strongest pure chatbot, where ChatGPT still edges it.
Score breakdown
Key facts
- Pricing
- $4.99/month (Google AI Plus) (Free; AI Plus $4.99 with 400 GB storage; AI Pro $19.99 with 5 TB storage; AI Ultra from $99.99 (US prices).)
- Free option
- Yes
- Platforms
- Android, Wear OS, Android Auto, Web, iOS
- Google Play rating
- 4.6/5 from about 46.7M ratings
- Downloads
- 1B+
- Monthly users
- 950M across platforms (Alphabet, Q2 2026)
- Latest fast model
- Gemini 3.8 Flash (September 2026)
- Google Play (US) rating
- 4.6/5 (46,721,385 reviews)
What we like
- Built in as the default assistant on most Android phones
- Acts in Gmail, Calendar, Maps and Photos
- Gemini Live voice with camera and screen sharing
- Strong free tier; AI Plus $4.99 with 400 GB storage
Watch out for
- Works best when it can see your Google data
- Some chats may be reviewed by humans unless you turn off activity
- A few old Assistant routines still missing