# Tortoise vs 蛙角鳴星

The clearest difference is price: 蛙角鳴星 at Free against Tortoise's $1.99. 蛙角鳴星 also leads on update cadence (every 2 weeks vs every 4 months) and iOS requirement (13.0 vs 16.0). On ads, in-app purchases and device support there is nothing between them.

蛙角鳴星 is free to download; Tortoise costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Tortoise ships an update every 4 months, 蛙角鳴星 every 2 weeks. The most recent releases landed on October 8, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Tortoise | 蛙角鳴星 |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[2.5 (2 ratings)](https://appshunter.io/ios/app/tortoise-keep-tracking/id1127680609/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 63.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | Paid | — |
| Size | 25 MB | 200 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [叶祺 顾](https://appshunter.io/developer/1127680608) | [Aurismart Technology Corporation](https://appshunter.io/developer/1531991960) |

## What reviewers say

### Tortoise

[App page](https://appshunter.io/ios/app/tortoise-keep-tracking/id1127680609)

This app helps you meticulously track the growth and health of your pet turtles. Record key measurements, feeding habits, and visual progress with photos and videos. Manage multiple pets and set reminders for care tasks to ensure optimal health.

**Highlights:** Record weight and measurements, Log feeding habits, Store photos and videos, Generate growth charts, Manage multiple turtles, Set care reminders

**In-app purchases:** none


### 蛙角鳴星

[App page](https://appshunter.io/ios/app/id6748662203)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Tortoise free?

Tortoise costs $1.99, with no in-app purchases.

### Is 蛙角鳴星 free?

蛙角鳴星 is free to download, with no in-app purchases.

### Do Tortoise or 蛙角鳴星 have ads?

Neither Tortoise nor 蛙角鳴星 shows ads.

### Which is updated more often, Tortoise or 蛙角鳴星?

Tortoise ships an update every 4 months, and 蛙角鳴星 every 2 weeks. Most recently, Tortoise was updated on October 8, 2026 and 蛙角鳴星 on October 1, 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.*