# Binary Calculator SDG vs Mumu Calculator

The clearest difference is in-app purchases: Binary Calculator SDG at none against Mumu Calculator's 1. Binary Calculator SDG also leads on iOS requirement (11.0 vs 16.0). Mumu Calculator's advantage is update cadence (every 3 weeks vs every 12 months). On price, ads and device support there is nothing between them.

Both are free to download. Mumu Calculator sells 1 one-off in-app purchase. Binary Calculator SDG asks for nothing beyond the download.

Binary Calculator SDG ships an update every 12 months, Mumu Calculator every 3 weeks. The most recent releases landed on October 10, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Binary Calculator SDG | Mumu Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mumu-calculator/id6774240639/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 12 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 12 MB | 10 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SDG CODE DOO NIS](https://appshunter.io/developer/1343251532) | [楠 李](https://appshunter.io/developer/6773365034) |

## What reviewers say

### Binary Calculator SDG

[App page](https://appshunter.io/ios/app/binary-calculator-sdg/id6741471372)

**Features:** macOS Compatibility

**In-app purchases:** none


### Mumu Calculator

[App page](https://appshunter.io/ios/app/mumu-calculator/id6774240639)

This app allows you to edit past calculations, making it easy to correct mistakes or continue complex math problems. It offers features like adding notes, tracking subtotals, and saving archives for organized financial management and everyday use.

**Highlights:** Edit past calculations with precise cursor placement, Add notes to calculation groups, Track subtotals, Save and reopen calculation archives, Restore deleted records, Copy selected records

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Pro | $2.99 | one-time |


## Frequently asked questions

### Is Binary Calculator SDG free?

Binary Calculator SDG is free to download, with no in-app purchases.

### Is Mumu Calculator free?

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

### Do Binary Calculator SDG or Mumu Calculator have ads?

Both Binary Calculator SDG and Mumu Calculator show ads.

### Which is updated more often, Binary Calculator SDG or Mumu Calculator?

Binary Calculator SDG ships an update every 12 months, and Mumu Calculator every 3 weeks. Most recently, Binary Calculator SDG was updated on October 10, 2026 and Mumu Calculator on September 29, 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.*