Gemini API Key on iPhone — Free BYOK Chat App

Google Gemini in Ensor at a glance

API	Gemini API generateContent / streamGenerateContent (https://generativelanguage.googleapis.com)
Web search	Grounding with Google Search
Image input	Yes
PDF input	Yes
Streaming	Yes
Models	Ensor loads the Gemini models available to your key, or you can type any Gemini model ID.

How to set up Google Gemini on iPhone

Create an API key in Google AI Studio.
Open Ensor, go to Contacts and tap an AI’s avatar, or create a new AI.
Set Provider to Google Gemini and paste your key into API Key.
Choose a model. Ensor loads the Gemini models available to your key, or you can type any Gemini model ID.
Tap Test Connection, save, and start chatting.

Good to know

Gemini API usage and any free tier are governed by Google’s current pricing for your API key.
Images and PDFs are sent as inline data in Gemini’s format.
Requests go directly from your iPhone to Google Gemini. There is no Ensor server in between.

Use Gemini alongside other models

Every AI contact in Ensor has its own provider and key, so you can keep Gemini next to other models and even put them in the same group chat. Other providers:

Frequently asked questions

How do I use a Gemini API key on iPhone?

Create a key in Google AI Studio, then paste it into an AI contact in Ensor and pick a Gemini model. Your key stays in the iPhone Keychain.

Is Ensor free to use with Gemini?

Yes. Ensor is free. Your Google Gemini account bills you for the API usage on your key.

Where is my Gemini API key stored?

In the iPhone Keychain, set to this device only. It is never stored in the app database, never exported and never sent anywhere except the provider’s API.

Use your Gemini API key on iPhone