# Calculation Triangle vs Mambio

The clearest difference is review sentiment: Mambio at 89% against Calculation Triangle's 30%. Mambio also leads on price (Free vs $0.99) and update cadence (every 3 weeks vs every 21 months). Calculation Triangle's advantage is in-app purchases (none vs 7) and iOS requirement (6.0 vs 15.0). On ads and device support there is nothing between them.

Mambio is free to download; Calculation Triangle costs $0.99 up front. Mambio sells 7 in-app purchases, starting at $7.99 per month. Calculation Triangle asks for nothing beyond the download.

Calculation Triangle ships an update every 21 months, Mambio every 3 weeks. The most recent releases landed on September 21, 2026 and August 22, 2026 respectively.

## The numbers

| Metric | Calculation Triangle | Mambio |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/calculation-triangle/id575736731/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 30.0% of reviews | **88.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 3 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 22 MB | 554 MB |
| Requires iOS | **6.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Christian Urff](https://appshunter.io/developer/415894463) | [neurodactics GmbH](https://appshunter.io/developer/1057021768) |

## What reviewers say

### Calculation Triangle

[App page](https://appshunter.io/ios/app/calculation-triangle/id575736731)

This virtual manipulative helps develop flexible arithmetic thinking. Users can create puzzles, model problems, and explore number relationships by adding, moving, and hiding tokens within a calculation triangle.

**Highlights:** Virtual calculation triangle manipulative, Token manipulation for arithmetic, Create and solve number puzzles, Hide/show fields and numbers, Shake to clear the triangle, Explore number relationships

**Features:** macOS Compatibility

**In-app purchases:** none


### Mambio

[App page](https://appshunter.io/ios/app/mambio/id1057021769)

This app offers a playful and independent way for children to learn mathematics. It uses scientifically proven methods and engaging learning worlds to make math exciting and motivating, with no subscriptions or ads.

**Highlights:** Playful math learning, Scientifically based methods, Individualized tasks, Engaging learning worlds, No subscriptions or ads, Progress tracking

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Monat | $7.99 | per month |
| 3 Monate | $19.99 | per 3 months |
| 12 Monate | $49.99 | per year |
| Lernen bis  20 | $29.99 | one-time |
| Lernen bis 100 | $29.99 | one-time |
| Basis Paket | $29.99 | one-time |
| Komplettpaket | $44.99 | one-time |


## Frequently asked questions

### Is Calculation Triangle free?

Calculation Triangle costs $0.99, with no in-app purchases.

### Is Mambio free?

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

### Do Calculation Triangle or Mambio have ads?

Neither Calculation Triangle nor Mambio shows ads.

### Which is updated more often, Calculation Triangle or Mambio?

Calculation Triangle ships an update every 21 months, and Mambio every 3 weeks. Most recently, Calculation Triangle was updated on September 21, 2026 and Mambio on August 22, 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.*