WaterGPT - Private, Eco AI
Private AI that saves water
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
WaterGPT is a private AI assistant that runs entirely on your iPhone.
Cloud chatbots run in data centers, and data centers are cooled with water. WaterGPT works differently. The AI runs directly on your device, so your conversations stay private and use virtually no water.
No servers. No data collection. Just a fast, capable assistant that lives on your phone.
What you can do:
Chat with real AI, fully on device
Ask questions, get writing help, work through ideas, or just talk. Replies stream instantly, generated by real language models running natively on your iPhone.
Choose your model
Use Apple's built-in on-device intelligence, or download leading open models including Qwen, Gemma, Phi, and Llama. Models come in small, medium, and large sizes, so you can pick what fits your phone. Switch anytime.
Track the water you save
WaterGPT estimates how much water a cloud chatbot would have used for your conversations and keeps a running total of what you have saved. Watch it add up with every reply.
Keep your conversations private
Nothing you type is sent to a server, used for training, or seen by anyone but you. Voice dictation is also processed entirely on your iPhone. Once a model is on your device, WaterGPT works without an internet connection.
Why WaterGPT:
Your data never leaves your phone
Works offline once a model is installed
No waiting on server queues or outages
A clear picture of your environmental impact
Native design built for iOS 26
Free and Pro:
WaterGPT is free to use every day, with full access to every model and feature. WaterGPT Pro removes the daily message limit for unlimited conversations.
Who it's for:
Anyone who wants a capable AI assistant without giving up privacy
People who care about the environmental cost of cloud AI
iPhone users who want AI that works offline
Good to know:
Water savings are conservative estimates based on published research on data center water use. Downloadable models require a compatible iPhone, and larger models need more memory. Requires iOS 26.
Download WaterGPT and get a private AI assistant that answers anything and wastes nothing.
Support: https://a15n.lol/watergpt
Terms of Service: https://a15n.lol/watergpt/terms
Privacy Policy: https://a15n.lol/watergpt/privacy
End User License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Thafier Mahmood, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Contact Info
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Thafier Mahmood
- Size
- 34 MB
- Category
- Productivity
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Pro $29.99
- Pro $4.99
- Copyright
- © 2026 WaterGPT
