# Soft Challenge vs 75 Sustainable

The clearest difference is price: 75 Sustainable at Free against Soft Challenge's $1.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

75 Sustainable is free to download; Soft Challenge costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Soft Challenge ships an update fortnightly, 75 Sustainable every 2 weeks. The most recent releases landed on October 30, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Soft Challenge | 75 Sustainable |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.8 (286 ratings)](https://appshunter.io/ios/app/soft-challenge/id6448931254/reviews)** | — |
| Number of ratings | **286** | — |
| Positive reviews | 64.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 60 MB | 1 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [White Belt Development LLC](https://appshunter.io/developer/1638137804) | [calbo, LLC](https://appshunter.io/developer/1868081032) |

## What reviewers say

### Soft Challenge

[App page](https://appshunter.io/ios/app/soft-challenge/id6448931254)

This app guides users in building healthy habits through a customizable daily routine. It offers recommended rules for fitness, diet, hydration, and reading, allowing users to adapt the duration and tasks to their personal goals and lifestyle.

**Highlights:** Customizable habit rules, Personalized goals and lifestyle adaptation, Recommended daily workout routine, Healthy diet tracking, Hydration goals, Reading habit tracking

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

**In-app purchases:** none

**What reviewers like**

- 👍 Highly customizable and flexible
- 👍 Great for tracking 75 Soft
- 👍 Simple and easy to use
- 👍 One-time purchase, not subscription
- 👍 Helpful reminders

**What reviewers complain about**

- 🐛 App gets stuck on Day 1
- 🐛 Navigation can be tricky
- 🐛 Cannot edit/disable certain features
- 🐛 Weight unit change not saving
- 🐛 Cannot go back to fix missed tasks

**Reported bugs**

- App stuck on Day 1 congratulation screen
- Water consumption not saving
- App won't allow moving forward without checking all tasks
- Cannot save changes to weight units
- App stuck on 'great job keep on crushing it' screen

**Requested features**

- Allow users to share progress with others
- Option to edit/disable certain features
- Photo option for tracking
- Extend the number of days for challenges


### 75 Sustainable

[App page](https://appshunter.io/ios/app/75-sustainable/id6797170951)

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

**In-app purchases:** none


## Frequently asked questions

### Is Soft Challenge free?

Soft Challenge costs $1.99, with no in-app purchases.

### Is 75 Sustainable free?

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

### Do Soft Challenge or 75 Sustainable have ads?

Neither Soft Challenge nor 75 Sustainable shows ads.

### Which is updated more often, Soft Challenge or 75 Sustainable?

Soft Challenge ships an update fortnightly, and 75 Sustainable every 2 weeks. Most recently, Soft Challenge was updated on October 30, 2026 and 75 Sustainable on October 16, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*