Android Guide
This guide is for Android devices including phones and tablets.
System Requirements
- Android 13+ is recommended
Usage Guide
- Draw on the Canvas with finger or your tablet's compatible stylus.
- Tap the AI button at the buttom right to send the drawing to the AI model.
- View the AI results in the markdown view, paste on PC or Mac.
- Edit the results by clicking on the pencil icon.
- Delete a saved drawing by swiping left on the drawing in the saves list.
- Search saves by their content or time by typing in the search bar.
Custom API
- Explore Custom API to obtain your AI API settings.
- Configure the api settings at: ⚙️Settings - API Settings
- API Endpoint: Enter the API base URL.
- API Key: Enter your API key.
- Model Name: Enter the model ID.
It is a know issue that the API endpoint must use version v1. Some providers use their custom version of the API endpoint, resulting in errors. For example, the API endpoint at https://api.openai.com/v1 should be configured as https://api.openai.com in the app settings. We are working on a fix in an upcoming release.
Examples:
| Provider | Base URL | Model ID |
|---|---|---|
| OpenAI | https://api.openai.com | gpt-5.1 |
| Anthropic | https://api.anthropic.com | claude-3-5-sonnet |
| https://generativelanguage.googleapis.com/v1beta/openai | gemini-2.5-flash | |
| Alibaba | https://dashscope.aliyuncs.com/compatible-mode | qwen3-vl-plus |
| Byte Dance | https://ark.cn-beijing.volces.com/api | doubao-seed-1-6-vision-250815 |
| Tencent | https://api.hunyuan.cloud.tencent.com | hunyuan-large-vision |
| Openrouter | https://openrouter.ai/api |
Sync to Computer
The sync feature works if you have configured the PC IP Address in settings. It syncs your drawing and AI results to your mac or PC app.
- Auto-Sync: On the finish of each AI request, your drawing and AI results will be automatically synced to your mac or PC app automatically. Your mac or PC's clipboard will also be updated with the latest AI results (LaTeX/markdown source).
- Manual Sync: Upon pressing the Copy button in the top bar, only your AI results (LaTeX/markdown source) will be synced to your mac or PC's clipboard.
Sync to Mac or PC with app
In the mac/PC version of WriteTex, go to ⚙️Settings - Clipboard and Sync - Current IP Address . Copy the IP address displayed on your mac/PC to your iOS device at ⚙️Settings - Clipboard and Sync - PC IP Address. If there are multiple IP addresses displayed in your Mac or PC app, you typically choose the one that starts with 192.168. or 10.0. The first time you sync, your iOS app will prompt you to allow the app to access local network. Please grant the permission in order for the sync feature to work. You can also configure this option in your System Settings. Go to Settings - Privacy & Security - Local Network and toggle on WriteTex.
Try syncing by pressing the AI button and see if the results are synced to your mac or PC by pasting the clipboard.
Stylus Support
WriteTex partially supports using your tablet's compatible stylus for drawing. You can configure to only use the stylus for drawing by going to ⚙️Settings - Drawing - Restrict drawing to pen.
Update
In the about section in settings, you can check for updates. The latest version can be found on our website.