# WaterGPT - Private, Eco AI — Private AI that saves water

> Private AI that saves water (iPhone/iPad app by Thafier Mahmood.)

- Source: https://appshunter.io/ios/app/watergpt-private-eco-ai/id6796574660 (this page in markdown: same URL + `.md`)
- Developer: [Thafier Mahmood](https://appshunter.io/developer/1698380406)
- Category: Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 26.0 · 32 MB
- Languages: American English
- Released: 2026-08-20
- Data updated: 2026-08-21
- User reviews in markdown: https://appshunter.io/ios/app/watergpt-private-eco-ai/id6796574660/reviews.md

## What is WaterGPT?

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/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Pro | $4.99 | per month |
| Pro | $29.99 | per year |



## Version history (last 1 release)

### 1.0 — 2026-08-20

No release notes.

## More apps by Thafier Mahmood

- [TTD-AI SAT Test Prep](https://appshunter.io/ios/app/ttd-ai-sat-test-prep/id6451453484)
- [Solvy AI - Solve Anything](https://appshunter.io/ios/app/solvy-ai-solve-anything/id6479270262)
- [Deco - AI Interior Design](https://appshunter.io/ios/app/deco-ai-interior-design/id6740154503)
- [FoodCoach - AI Food Scanner](https://appshunter.io/ios/app/foodcoach-ai-food-scanner/id6746601642)
- [Thevenin - AI STEM Solver](https://appshunter.io/ios/app/thevenin-ai-stem-solver/id6759879628)

All apps by Thafier Mahmood: https://appshunter.io/developer/1698380406

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-21.*