# CREST PLUS　公式アプリ vs BTS山口あじす

CREST PLUS　公式アプリ and BTS山口あじす 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.

CREST PLUS　公式アプリ ships an update every 3 months, BTS山口あじす every 2 months. The most recent releases landed on September 10, 2026 and May 19, 2026 respectively.

## The numbers

| Metric | CREST PLUS　公式アプリ | BTS山口あじす |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Size | 76 MB | 91 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [As-me estelle Co.,Ltd.](https://appshunter.io/developer/979097930) | [BTS山口あじす](https://appshunter.io/developer/1817108325) |

## What reviewers say

### CREST PLUS　公式アプリ

[App page](https://appshunter.io/ios/app/crest-plus/id6743190129)

**In-app purchases:** none


### BTS山口あじす

[App page](https://appshunter.io/ios/app/bts/id6746473675)

**In-app purchases:** none


## Frequently asked questions

### Is CREST PLUS　公式アプリ free?

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

### Is BTS山口あじす free?

BTS山口あじす is free to download, with no in-app purchases.

### Do CREST PLUS　公式アプリ or BTS山口あじす have ads?

Neither CREST PLUS　公式アプリ nor BTS山口あじす shows ads.

### Which is updated more often, CREST PLUS　公式アプリ or BTS山口あじす?

CREST PLUS　公式アプリ ships an update every 3 months, and BTS山口あじす every 2 months. Most recently, CREST PLUS　公式アプリ was updated on September 10, 2026 and BTS山口あじす on May 19, 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.*