# 割合計算機 vs DaysRing

The clearest difference is in-app purchases: 割合計算機 at none against DaysRing's 1. 割合計算機 also leads on iOS requirement (16.4 vs 18.5). DaysRing's advantage is ads (none vs shown) and update cadence (every 4 days vs every 2 months). On price and device support there is nothing between them.

Both are free to download. DaysRing sells 1 one-off in-app purchase. 割合計算機 asks for nothing beyond the download.

割合計算機 ships an update every 2 months, DaysRing every 4 days. The most recent releases landed on October 2, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | 割合計算機 | DaysRing |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 4 days** |
| Size | 5 MB | 2 MB |
| Requires iOS | **16.4** | 18.5 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Risako Asai](https://appshunter.io/developer/1671273580) | [Kentaro Shirai](https://appshunter.io/developer/1619348769) |

## What reviewers say

### 割合計算機

[App page](https://appshunter.io/ios/app/id6477940610)

**Features:** macOS Compatibility

**In-app purchases:** none


### DaysRing

[App page](https://appshunter.io/ios/app/daysring/id6762712286)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DaysRing Premium | $0.99 | one-time |


## Frequently asked questions

### Is 割合計算機 free?

割合計算機 is free to download, with no in-app purchases.

### Is DaysRing free?

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

### Do 割合計算機 or DaysRing have ads?

割合計算機 shows ads; DaysRing does not.

### Which is updated more often, 割合計算機 or DaysRing?

割合計算機 ships an update every 2 months, and DaysRing every 4 days. Most recently, 割合計算機 was updated on October 2, 2026 and DaysRing on October 8, 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.*