# Relation　Nail vs ArbRe　公式アプリ

Relation　Nail and ArbRe　公式アプリ are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Relation　Nail ships an update every 39 months, ArbRe　公式アプリ every 38 months. The most recent releases landed on September 13, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Relation　Nail | ArbRe　公式アプリ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 38 months** |
| Size | 15 MB | 15 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KIYOMI MATSUFUSA](https://appshunter.io/developer/1445924948) | [CHIEKO INUI](https://appshunter.io/developer/1460782204) |

## What reviewers say

### Relation　Nail

[App page](https://appshunter.io/ios/app/relation-nail/id1445924949)

**In-app purchases:** none


### ArbRe　公式アプリ

[App page](https://appshunter.io/ios/app/arbre/id1460782205)

**In-app purchases:** none


## Frequently asked questions

### Is Relation　Nail free?

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

### Is ArbRe　公式アプリ free?

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

### Do Relation　Nail or ArbRe　公式アプリ have ads?

Neither Relation　Nail nor ArbRe　公式アプリ shows ads.

### Which is updated more often, Relation　Nail or ArbRe　公式アプリ?

Relation　Nail ships an update every 39 months, and ArbRe　公式アプリ every 38 months. Most recently, Relation　Nail was updated on September 13, 2026 and ArbRe　公式アプリ on September 21, 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.*