# nanoGPT: Train GPT on Device — Train a Shakespearean GPT

> On-device GPT model training and experimentation for iOS. (iPhone/iPad app by 一和 朱.)

- Source: https://appshunter.io/ios/app/nanogpt-train-gpt-on-device/id6478601620 (this page in markdown: same URL + `.md`)
- Developer: [一和 朱](https://appshunter.io/developer/1496551363)
- Category: Education, Utilities
- Price: Free with in-app purchases
- Rating: 5.00/5 from 2 App Store ratings
- Age rating: 4+
- Requires: iOS 16.4 · 80 MB
- Languages: English
- Released: 2024-04-04
- Data updated: 2026-06-11
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/nanogpt-train-gpt-on-device/id6478601620/reviews.md

## What is nanoGPT?

nanoGPT is a groundbreaking iOS app that pioneers GPT language model training on smartphones. Built upon the innovative nanoGPT open-source repository, our app lets you train and experiment with GPT models directly on your device.

Using Shakespeare's sonnets as training data, you'll witness the model's gradual improvement in writing abilities, from random outputs to coherent poetry. Experience the growth of AI firsthand with nanoGPT.

Key Features:

On-Device Training: Train GPT models on your iOS device.
Intuitive Interface: Easy-to-use, even for machine learning beginners.
Powerful Visualizations: Explore the inner workings of GPT models.

## Key features

- On-device GPT model training
- Experiment with AI models
- Intuitive interface for beginners
- Visualizations of model workings
- Learn AI with Shakespearean sonnets

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| PRO Mode | $1.99 | one-time |



## Frequently asked questions about nanoGPT

### What is nanoGPT?

nanoGPT is an iOS app that allows you to train and experiment with GPT language models directly on your smartphone. It uses an open-source repository to bring AI model training to your device.

### How does nanoGPT teach users about AI?

nanoGPT uses Shakespeare's sonnets as training data, allowing users to observe the GPT model's progress from random outputs to coherent poetry. This provides a hands-on learning experience for AI development.

### Is nanoGPT suitable for beginners?

Yes, nanoGPT features an intuitive interface designed to be easy to use, even for individuals new to machine learning. It aims to make AI experimentation accessible.

### What devices does nanoGPT support?

nanoGPT is currently supported on iPhone devices. The app was last updated on March 19, 2025, with version 1.1.

### What is the age rating for nanoGPT?

nanoGPT has an age rating of 4+, making it suitable for a wide range of users interested in educational AI applications.

### Does nanoGPT have ads?

No, nanoGPT does not contain advertisements. The app is free to download and use, with optional in-app purchases.

### How often is nanoGPT updated?

The app was last updated on March 19, 2025, indicating ongoing development and support. The current version is 1.1.

### What kind of in-app purchases does nanoGPT offer?

While the app is free to download, it offers in-app purchases. Specific details on these purchases are not provided in the app description but typically enhance the user experience or unlock additional features.

## Version history (last 2 releases)

### 1.1 — 2025-03-19

- Refine UI

### 1.0 — 2024-04-04

No release notes.

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## More apps by 一和 朱

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All apps by 一和 朱: https://appshunter.io/developer/1496551363

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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 2026-06-11.*