# 1st Calc vs Calculation Triangle

The clearest difference is review sentiment: 1st Calc at 100% against Calculation Triangle's 30%. 1st Calc also leads on rating (3.3 vs 3.0) and ratings volume (3 vs 1). Calculation Triangle's advantage is update cadence (every 21 months vs every 50 months) and iOS requirement (6.0 vs 15.6). On price, ads, in-app purchases and monetization model there is nothing between them.

1st Calc costs $0.99 and Calculation Triangle $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

1st Calc holds the better App Store score, 3.3 against 3.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews point the same way: 100% of 1st Calc's written reviews are positive against 30% of Calculation Triangle's.

1st Calc ships an update every 50 months, Calculation Triangle every 21 months. Both last shipped on September 21, 2026.

## The numbers

| Metric | 1st Calc | Calculation Triangle |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | **[3.3 (3 ratings)](https://appshunter.io/ios/app/1st-calc/id546843701/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/calculation-triangle/id575736731/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | **100.0% of reviews** | 30.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 50 months | **Every 21 months** |
| Monetization | Paid | Paid |
| Size | 9 MB | 22 MB |
| Requires iOS | 15.6 | **6.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [medienwerkstatt](https://appshunter.io/developer/322110992) | [Christian Urff](https://appshunter.io/developer/415894463) |

## What reviewers say

### 1st Calc

[App page](https://appshunter.io/ios/app/1st-calc/id546843701)

This app provides a visual abacus-style bead frame to help primary school children learn numbers up to 100. It supports addition and subtraction practice, making math more engaging and helping to prevent learning disabilities.

**Highlights:** Abacus-style bead frame, Learn numbers up to 100, Addition and subtraction practice, Customizable bead colors, Optional live cam background

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is 1st Calc free?

1st Calc costs $0.99, with no in-app purchases.

### Is Calculation Triangle free?

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

### Which has better reviews, 1st Calc or Calculation Triangle?

1st Calc is rated higher. 1st Calc averages 3.3 out of 5 from 3 ratings, while Calculation Triangle averages 3.0 from 1 ratings.

### Do 1st Calc or Calculation Triangle have ads?

Neither 1st Calc nor Calculation Triangle shows ads.

### Which is updated more often, 1st Calc or Calculation Triangle?

1st Calc ships an update every 50 months, and Calculation Triangle every 21 months. Most recently, 1st Calc was updated on September 21, 2026 and Calculation Triangle on September 21, 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.*