# Calculation Sheet vs Abacus

The clearest difference is ads: Abacus at none against Calculation Sheet's shown. Abacus also leads on update cadence (every 4 days vs every 6 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Calculation Sheet sells 1 one-off in-app purchase and Abacus sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Calculation Sheet ships an update every 6 months, Abacus every 4 days. The most recent releases landed on September 29, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Calculation Sheet | Abacus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (2 ratings)](https://appshunter.io/ios/app/calculation-sheet-experiment/id1010610865/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 26 MB | 33 MB |
| Requires iOS | **12.0** | 13.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [APP Technology Co. Ltd.](https://appshunter.io/developer/524936444) | [Sahan Cava](https://appshunter.io/developer/1723739236) |

## What reviewers say

### Calculation Sheet

[App page](https://appshunter.io/ios/app/calculation-sheet-experiment/id1010610865)

This app offers a digital number game designed to help children aged 3-8 learn and understand basic arithmetic operations. It uses various game modes to make abstract mathematical concepts engaging and accessible.

**Highlights:** Digital number game, Learn addition, subtraction, multiplication, division, Understand abstract mathematical concepts, Variety of game modes, Ages 3-8 focus, Parental guidance support

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calculation Sheet (No Ads) | $0.99 | one-time |


### Abacus

[App page](https://appshunter.io/ios/app/abacus-math-for-kids/id6478469882)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $1.99 | per 7 days |
| Monthly Subscription | $6.99 | per month |
| Yearly Subscription | $29.99 | per year |


## Frequently asked questions

### Is Calculation Sheet free?

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

### Is Abacus free?

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

### Do Calculation Sheet or Abacus have ads?

Calculation Sheet shows ads; Abacus does not.

### Which is updated more often, Calculation Sheet or Abacus?

Calculation Sheet ships an update every 6 months, and Abacus every 4 days. Most recently, Calculation Sheet was updated on September 29, 2026 and Abacus on September 23, 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.*