# TrueStone vs Their First ABCs

The clearest difference is in-app purchases: Their First ABCs at none against TrueStone's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. TrueStone sells 3 in-app purchases, starting at $5.99 per month. Their First ABCs asks for nothing beyond the download.

TrueStone ships an update every 2 weeks, Their First ABCs fortnightly. The most recent releases landed on October 29, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | TrueStone | Their First ABCs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (13 ratings)](https://appshunter.io/ios/app/truestone-rock-identifier/id6791681609/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Monetization | Freemium | — |
| Size | 12 MB | 57 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [prosafe ltd](https://appshunter.io/developer/1691708255) | [Their First Words LLC](https://appshunter.io/developer/6776320035) |

## What reviewers say

### TrueStone

[App page](https://appshunter.io/ios/app/truestone-rock-identifier/id6791681609)

Identify rocks, minerals, and gemstones by taking photos. Get detailed geological information, compare specimens, and build a personal digital collection. Explore crystal lore and ask follow-up questions for deeper learning.

**Highlights:** Identify rocks from photos, Analyze multiple specimen angles, Explore geological facts, Refine results with guided tests, Ask AI follow-up questions, Build and export digital collection, Discover crystal lore

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $5.99 | per month |
| Premium Yearly | $29.99 | per year |
| 20 Scan Pack | $2.99 | one-time |


### Their First ABCs

[App page](https://appshunter.io/ios/app/their-first-abcs/id6808456775)

**In-app purchases:** none


## Frequently asked questions

### Is TrueStone free?

TrueStone is free to download, with in-app purchases available.

### Is Their First ABCs free?

Their First ABCs is free to download, with no in-app purchases.

### Do TrueStone or Their First ABCs have ads?

Neither TrueStone nor Their First ABCs shows ads.

### Which is updated more often, TrueStone or Their First ABCs?

TrueStone ships an update every 2 weeks, and Their First ABCs fortnightly. Most recently, TrueStone was updated on October 29, 2026 and Their First ABCs on October 14, 2026.

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