# ピュアクリスタル vs Petcle Log

The clearest difference is review sentiment: Petcle Log at 100% against ピュアクリスタル's 0%. Petcle Log also leads on update cadence (every 3 days vs weekly). ピュアクリスタル's advantage is ads (none vs shown) and iOS requirement (13.0 vs 16.0). 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.

ピュアクリスタル ships an update weekly, Petcle Log every 3 days. The most recent releases landed on October 16, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | ピュアクリスタル | Petcle Log |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/petcle-log/id6762832903/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | — | Free |
| Size | 39 MB | 64 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ジェックス株式会社](https://appshunter.io/developer/1321772176) | [株式会社 TEXET](https://appshunter.io/developer/1895033989) |

## What reviewers say

### ピュアクリスタル

[App page](https://appshunter.io/ios/app/id1506793371)

**Features:** macOS Compatibility

**In-app purchases:** none


### Petcle Log

[App page](https://appshunter.io/ios/app/petcle-log/id6762832903)

Easily log your dog's walks and stool observations to earn points redeemable for rewards. Track routes, distances, and stool characteristics to monitor your pet's health and identify trends over time.

**Highlights:** Automatic walk tracking (route, distance, time), One-tap stool logging with photo option, Radar chart visualization of stool characteristics, Calendar and history view for past records, Points earned for consistent logging, Reminder notifications for logging

**In-app purchases:** none


## Frequently asked questions

### Is ピュアクリスタル free?

ピュアクリスタル is free to download, with no in-app purchases.

### Is Petcle Log free?

Petcle Log is free to download, with no in-app purchases.

### Do ピュアクリスタル or Petcle Log have ads?

Petcle Log shows ads; ピュアクリスタル does not.

### Which is updated more often, ピュアクリスタル or Petcle Log?

ピュアクリスタル ships an update weekly, and Petcle Log every 3 days. Most recently, ピュアクリスタル was updated on October 16, 2026 and Petcle Log on October 7, 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.*