# Sahha vs Tortoise

Sahha and Tortoise 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.

Sahha ships an update fortnightly, Tortoise every 3 weeks. The most recent releases landed on October 15, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Sahha | Tortoise |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sahha/id1592241897/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free | — |
| Size | 11 MB | 58 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Sahha Pty Ltd](https://appshunter.io/developer/1592241899) | [Tortoise Limited](https://appshunter.io/developer/1677329972) |

## What reviewers say

### Sahha

[App page](https://appshunter.io/ios/app/sahha/id1592241897)

This app monitors sleep and movement activity by integrating with the Health app to predict wellbeing. It serves as a companion to a web dashboard for health and fitness research. Users are advised to consult a doctor for medical decisions.

**Highlights:** Health app integration, Sleep and movement monitoring, Wellbeing prediction, Companion to web dashboard, Developer tool

**Features:** macOS Compatibility

**In-app purchases:** none


### Tortoise

[App page](https://appshunter.io/ios/app/tortoise/id6746253377)

**Features:** macOS Compatibility, Apple Wallet, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Sahha free?

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

### Is Tortoise free?

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

### Do Sahha or Tortoise have ads?

Neither Sahha nor Tortoise shows ads.

### Which is updated more often, Sahha or Tortoise?

Sahha ships an update fortnightly, and Tortoise every 3 weeks. Most recently, Sahha was updated on October 15, 2026 and Tortoise on September 23, 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.*