# SinceRec vs ARUM　公式アプリ

The clearest difference is in-app purchases: ARUM　公式アプリ at none against SinceRec's 3. ARUM　公式アプリ also leads on ads (none vs shown) and iOS requirement (12.0 vs 14.0). SinceRec's advantage is update cadence (every 3 months vs every 39 months). On price and device support there is nothing between them.

Both are free to download. SinceRec sells 3 in-app purchases, starting at $0.49 per month. ARUM　公式アプリ asks for nothing beyond the download.

SinceRec ships an update every 3 months, ARUM　公式アプリ every 39 months. The most recent releases landed on October 10, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | SinceRec | ARUM　公式アプリ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 39 months |
| Size | 67 MB | 19 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mieko Komatsu](https://appshunter.io/developer/1537355602) | [MAKI MUTOU](https://appshunter.io/developer/1628714807) |

## What reviewers say

### SinceRec

[App page](https://appshunter.io/ios/app/sincerec/id1621422950)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $0.49 | per month |
| Annual Premium | $7.49 | per year |
| Treat coffee to developer | $2.99 | one-time |


### ARUM　公式アプリ

[App page](https://appshunter.io/ios/app/arum/id1628714804)

**In-app purchases:** none


## Frequently asked questions

### Is SinceRec free?

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

### Is ARUM　公式アプリ free?

ARUM　公式アプリ is free to download, with no in-app purchases.

### Do SinceRec or ARUM　公式アプリ have ads?

SinceRec shows ads; ARUM　公式アプリ does not.

### Which is updated more often, SinceRec or ARUM　公式アプリ?

SinceRec ships an update every 3 months, and ARUM　公式アプリ every 39 months. Most recently, SinceRec was updated on October 10, 2026 and ARUM　公式アプリ on October 11, 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.*