
Chat
Answers appear as they're written, and any reply can start a chat of its own.
AI assistant for iPhone
Chat with GPT, Claude, Gemini or DeepSeek — or let Best pick for you. Create photos and videos, write documents and talk it through by voice, in your language.
Models
GPT, Claude, Gemini and DeepSeek in one app. Best picks the right model for each question, so you don't have to.
Example conversation
What it can do

Answers appear as they're written, and any reply can start a chat of its own.
Pick a style and see yourself in it, as a photo or a video.
Photos and short videos from a description.

Choose GPT, Claude, Gemini or DeepSeek — or let Best decide.

Twenty ready-made assistants, from copywriter to tutor — or build your own.
Plans
Free
Free
Pro
Weekly, monthly or yearly
Credits
Packs
The weekly Pro plan starts with a 3-day free trial. Prices appear in the App Store for your country.
GPT, Claude, Gemini and DeepSeek. Best picks one for each question; with Pro you can choose yourself.
Nine: English, German, French, Spanish, Italian, Portuguese, Turkish, Filipino and Russian.
No. No ads and no third-party analytics.