# Calculation Pad vs RedoCalc

The clearest difference is in-app purchases: RedoCalc at none against Calculation Pad's 5. RedoCalc also leads on update cadence (every 3 days vs fortnightly). Calculation Pad's advantage is ads (none vs shown) and device support (3 vs 1). On price there is nothing between them.

Both are free to download. Calculation Pad sells 5 one-off in-app purchases. RedoCalc asks for nothing beyond the download.

Calculation Pad ships an update fortnightly, RedoCalc every 3 days. The most recent releases landed on October 5, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Calculation Pad | RedoCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/calculation-pad/id1473259620/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 3 MB | 3 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Yukio Tajima](https://appshunter.io/developer/1473259619) | [Toshiyuki Kuwabara](https://appshunter.io/developer/1649322074) |

## What reviewers say

### Calculation Pad

[App page](https://appshunter.io/ios/app/calculation-pad/id1473259620)

This calculator app keeps a history of your calculations, allowing you to easily reuse past results. It offers enhanced security features like fingerprint or password protection for sensitive data. Despite its advanced functionality, it remains free to use.

**Highlights:** Calculation history, Reuse past calculations, Add taxes, Fingerprint/password/face protection, Free to use

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Developer Support | $0.99 | one-time |
| Small tip | $0.99 | one-time |
| Medium tip | $3.99 | one-time |
| Developer Support | $6.99 | one-time |
| Large tip | $6.99 | one-time |


### RedoCalc

[App page](https://appshunter.io/ios/app/redocalc/id6743318834)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Calculation Pad free?

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

### Is RedoCalc free?

RedoCalc is free to download, with no in-app purchases.

### Do Calculation Pad or RedoCalc have ads?

RedoCalc shows ads; Calculation Pad does not.

### Which is updated more often, Calculation Pad or RedoCalc?

Calculation Pad ships an update fortnightly, and RedoCalc every 3 days. Most recently, Calculation Pad was updated on October 5, 2026 and RedoCalc on September 25, 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.*