# Volume and Geometry vs Cabri Express Primary

The clearest difference is in-app purchases: Cabri Express Primary at none against Volume and Geometry's 2. Volume and Geometry's advantage is update cadence (every 3 weeks vs every 2 months) and iOS requirement (12.0 vs 14.0). On price, ads and device support there is nothing between them.

Both are free to download. Volume and Geometry sells 2 one-off in-app purchases. Cabri Express Primary asks for nothing beyond the download.

Volume and Geometry ships an update every 3 weeks, Cabri Express Primary every 2 months. The most recent releases landed on August 6, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Volume and Geometry | Cabri Express Primary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (178 ratings)](https://appshunter.io/ios/app/volume-and-geometry/id1280996873/reviews)** | — |
| Number of ratings | **178** | — |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 13 MB | 101 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 12+ |
| Developer | [Maxime Haeyaert](https://appshunter.io/developer/1274130669) | [Cabrilog SAS](https://appshunter.io/developer/1058047739) |

## What reviewers say

### Volume and Geometry

[App page](https://appshunter.io/ios/app/volume-and-geometry/id1280996873)

Calculate the volume of various geometric shapes quickly and easily. This app provides step-by-step calculation explanations, making it ideal for learning and understanding mathematical concepts.

**Highlights:** Volume calculation for geometric solids, Clear and intuitive interface, Step-by-step calculation explanations, Instant results, Learning and review tool

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Advertising | $0.99 | one-time |
| Detailed calculations | $0.99 | one-time |


### Cabri Express Primary

[App page](https://appshunter.io/ios/app/cabri-express-primary/id1668145657)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Volume and Geometry free?

Volume and Geometry is free to download, with in-app purchases available.

### Is Cabri Express Primary free?

Cabri Express Primary is free to download, with no in-app purchases.

### Do Volume and Geometry or Cabri Express Primary have ads?

Neither Volume and Geometry nor Cabri Express Primary shows ads.

### Which is updated more often, Volume and Geometry or Cabri Express Primary?

Volume and Geometry ships an update every 3 weeks, and Cabri Express Primary every 2 months. Most recently, Volume and Geometry was updated on August 6, 2026 and Cabri Express Primary on September 9, 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.*