# Calculator Plus vs RMSA

The clearest difference is rating: RMSA at 5.0 against Calculator Plus's 4.5. RMSA also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.0). Calculator Plus's advantage is ratings volume (2.2K vs 1) and update cadence (every 2 weeks vs every 2 months). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

RMSA holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Calculator Plus has 2.2K ratings behind it against 1, so its average is the more settled of the two.

Calculator Plus ships an update every 2 weeks, RMSA every 2 months. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Calculator Plus | RMSA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (2.2K ratings)](https://appshunter.io/ios/app/calculator-plus-units-and-split/id1082193416/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rmsa/id1497475563/reviews)** |
| Number of ratings | **2.2K** | 1 |
| Positive reviews | 82.9% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 7 MB | 17 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Studio Zebra](https://appshunter.io/developer/388549605) | [AJIS(DALIAN) CO., LTD.](https://appshunter.io/developer/1450770335) |

## What reviewers say

### Calculator Plus

[App page](https://appshunter.io/ios/app/calculator-plus-units-and-split/id1082193416)

This free iPad application offers a large, easy-to-read interface for performing basic calculations. Its user-friendly controls ensure immediate usability for everyday mathematical needs.

**Highlights:** Large, easy-to-read display, User-friendly controls, Basic calculations, Free to use

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 👍 Large, clear numbers
- 👍 Simple and straightforward
- 👍 Great for basic calculations
- 👍 Convenient on iPad

**What reviewers complain about**

- 🐛 Decimal point issues
- 🐛 Inaccurate percentage calculations
- 💡 Lack of history/memory
- 💡 No backspace/undo function
- 🔍 Ads can be distracting

**Reported bugs**

- Decimal point not working properly
- Incorrect percentage calculations

**Requested features**

- Add backspace/undo function
- Improve decimal point and percentage calculations
- Provide option to remove ads


### RMSA

[App page](https://appshunter.io/ios/app/rmsa/id1497475563)

Manage employee attendance, store work status, and handle expense approvals. Record store reports and business communications. Access and register essential operational information.

**Highlights:** Employee attendance tracking, Store work status management, Expense approval workflow, Store report registration, Business communication logging

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Calculator Plus free?

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

### Is RMSA free?

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

### Which has better reviews, Calculator Plus or RMSA?

RMSA is rated higher. Calculator Plus averages 4.5 out of 5 from 2.2K ratings, while RMSA averages 5.0 from 1 ratings.

### Do Calculator Plus or RMSA have ads?

Calculator Plus shows ads; RMSA does not.

### Which is updated more often, Calculator Plus or RMSA?

Calculator Plus ships an update every 2 weeks, and RMSA every 2 months. Most recently, Calculator Plus was updated on October 15, 2026 and RMSA on October 7, 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.*