# 75 Days vs Otter Stretch

The clearest difference is review sentiment: Otter Stretch at 100% against 75 Days's 0%. Otter Stretch also leads on rating (5.0 vs 4.5) and in-app purchases (none vs 1). 75 Days's advantage is ratings volume (16 vs 4). On price, monetization model, device support and iOS requirement there is nothing between them.

Both are free to download. 75 Days sells 1 one-off in-app purchase. Otter Stretch asks for nothing beyond the download.

Otter Stretch holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 16 and 4 respectively. Written reviews point the same way: 0% of 75 Days's written reviews are positive against 100% of Otter Stretch's.

75 Days ships an update fortnightly, Otter Stretch every 2 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | 75 Days | Otter Stretch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (16 ratings)](https://appshunter.io/ios/app/75-days-transform-challenge/id6584519577/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/otter-stretch-mobility-game/id6812369194/reviews)** |
| Number of ratings | **16** | 4 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 2 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 35 MB | 63 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Ali Murad](https://appshunter.io/developer/1412644468) | [MASOFT LLC](https://appshunter.io/developer/1879884981) |

## What reviewers say

### 75 Days

[App page](https://appshunter.io/ios/app/75-days-transform-challenge/id6584519577)

Embark on a 75-day journey to build mental toughness, discipline, and achieve personal growth. This app guides you through daily exercise, diet planning, hydration, reading, and progress tracking to transform your life.

**Highlights:** 75-day transformative journey, Daily exercise (two 45-min sessions, one outdoors), Customizable diet plan (no alcohol/cheat meals), Daily water intake tracking (1 gallon), Daily reading habit (10 pages non-fiction), Daily progress photos, Daily progress tracking

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $5.99 | one-time |


### Otter Stretch

[App page](https://appshunter.io/ios/app/otter-stretch-mobility-game/id6812369194)

This app gamifies stretching by having an otter swim through kelp based on your flexibility. It's designed for beginners, focusing on holding stretches steadily rather than depth. Turn screen time into stretch time with a built-in app locker.

**Highlights:** Gamified stretching with otter character, Camera-based range of motion tracking, App Lock to turn screen time into stretch time, Customizable routines and scenes, Progress tracking and range growth charts, Privacy-focused, on-device processing

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

**In-app purchases:** none


## Frequently asked questions

### Is 75 Days free?

75 Days is free to download, with in-app purchases available.

### Is Otter Stretch free?

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

### Which has better reviews, 75 Days or Otter Stretch?

Otter Stretch is rated higher. 75 Days averages 4.5 out of 5 from 16 ratings, while Otter Stretch averages 5.0 from 4 ratings.

### Do 75 Days or Otter Stretch have ads?

75 Days shows ads; Otter Stretch does not.

### Which is updated more often, 75 Days or Otter Stretch?

75 Days ships an update fortnightly, and Otter Stretch every 2 days. Most recently, 75 Days was updated on October 24, 2026 and Otter Stretch on October 24, 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.*