# MI.PA Guide vs Stone Identifier AI

The clearest difference is in-app purchases: MI.PA Guide at none against Stone Identifier AI's 5. Stone Identifier AI's advantage is update cadence (every 2 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Stone Identifier AI sells 5 in-app purchases, starting at $5.99 per 7 days. MI.PA Guide asks for nothing beyond the download.

MI.PA Guide ships an update every 2 months, Stone Identifier AI every 2 weeks. The most recent releases landed on September 9, 2026 and September 3, 2026 respectively.

## The numbers

| Metric | MI.PA Guide | Stone Identifier AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (9 ratings)](https://appshunter.io/ios/app/stone-identifier-ai/id6746135284/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 40 MB | 25 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Dotdotdot srl](https://appshunter.io/developer/1797556684) | [Flowzio Studio](https://appshunter.io/developer/1171745161) |

## What reviewers say

### MI.PA Guide

[App page](https://appshunter.io/ios/app/mipa-guide/id6742244397)

**In-app purchases:** none


### Stone Identifier AI

[App page](https://appshunter.io/ios/app/stone-identifier-ai/id6746135284)

Instantly identify rocks, gems, and minerals with a single photo. Get detailed geological insights, learn about their origins, and track your discoveries. Perfect for nature enthusiasts, students, and collectors.

**Highlights:** Instant stone identification from photos, Detailed geological profiles, Information on origin and formation, Learn usage and value, Build and track personal collections, AI-powered accuracy

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium Access | $5.99 | per 7 days |
| Weekly Premium Access | $7.99 | per 7 days |
| Yearly Premium Access | $24.99 | per year |
| Yearly Premium Access | $29.99 | per year |
| Lifetime Access | $129.99 | one-time |


## Frequently asked questions

### Is MI.PA Guide free?

MI.PA Guide is free to download, with no in-app purchases.

### Is Stone Identifier AI free?

Stone Identifier AI is free to download, with in-app purchases available.

### Do MI.PA Guide or Stone Identifier AI have ads?

Neither MI.PA Guide nor Stone Identifier AI shows ads.

### Which is updated more often, MI.PA Guide or Stone Identifier AI?

MI.PA Guide ships an update every 2 months, and Stone Identifier AI every 2 weeks. Most recently, MI.PA Guide was updated on September 9, 2026 and Stone Identifier AI on September 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*