# Calculator Plus vs 同心円ロケーター

The clearest difference is ads: 同心円ロケーター at none against Calculator Plus's shown. 同心円ロケーター also leads on update cadence (weekly vs every 2 weeks). Calculator Plus's advantage is iOS requirement (15.0 vs 17.0). On price, in-app purchases 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.

Calculator Plus ships an update every 2 weeks, 同心円ロケーター weekly. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Calculator Plus | 同心円ロケーター |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (2.5K ratings)](https://appshunter.io/ios/app/calculator-plus-units-and-split/id1082193416/reviews)** | — |
| Number of ratings | **2.5K** | — |
| Positive reviews | 80.6% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Free | — |
| Size | 7 MB | 3 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Studio Zebra](https://appshunter.io/developer/388549605) | [Tom App Works](https://appshunter.io/developer/1874760041) |

## 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


### 同心円ロケーター

[App page](https://appshunter.io/ios/app/id6792966939)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calculator Plus free?

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

### Is 同心円ロケーター free?

同心円ロケーター is free to download, with no in-app purchases.

### Do Calculator Plus or 同心円ロケーター have ads?

Calculator Plus shows ads; 同心円ロケーター does not.

### Which is updated more often, Calculator Plus or 同心円ロケーター?

Calculator Plus ships an update every 2 weeks, and 同心円ロケーター weekly. Most recently, Calculator Plus was updated on October 26, 2026 and 同心円ロケーター on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*