# 75 Tough & Soft Challenge vs FlexChallenge

The clearest difference is update cadence: FlexChallenge at every 6 days against 75 Tough & Soft Challenge's every 3 weeks. 75 Tough & Soft Challenge's advantage is iOS requirement (14.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 75 Tough & Soft Challenge sells 7 in-app purchases, starting at $1.99 per 7 days and FlexChallenge sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

75 Tough & Soft Challenge ships an update every 3 weeks, FlexChallenge every 6 days. The most recent releases landed on November 7, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 75 Tough & Soft Challenge | FlexChallenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (3.7K ratings)](https://appshunter.io/ios/app/75-tough-and-soft-challenge/id1582137526/reviews)** | — |
| Number of ratings | **3.7K** | — |
| Positive reviews | 3.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 6 days** |
| Monetization | Subscription | — |
| Size | 100 MB | 17 MB |
| Requires iOS | **14.0** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Solowei Group LTD](https://appshunter.io/developer/1683543614) | [Local Wave Studios LLC](https://appshunter.io/developer/1866312694) |

## What reviewers say

### 75 Tough & Soft Challenge

[App page](https://appshunter.io/ios/app/75-tough-and-soft-challenge/id1582137526)

This app provides tools to build physical and mental toughness over 75 days. Track water intake, training, weight, and progress photos. Connect with a supportive community on a similar journey.

**Highlights:** Water intake tracking, Training progress tracking, Weight progress tracking, Progress picture tracking, Community support, Mental toughness tools

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $1.99 | per 7 days |
| Weekly Subscription | $3.99 | per 7 days |
| Yearly Subscription | $4.99 | per year |
| Monthly Subscription | $5.99 | per month |
| One-Time Payment | $2.99 | one-time |
| One-Time Payment | $5.99 | one-time |
| One-Time Payment | $6.99 | one-time |

**What reviewers like**

- 🚀 Straightforward app
- 👍 Stores progress photos

**What reviewers complain about**

- 🐛 Glitchy and buggy
- 💰 Deceptive pricing
- 🔁 Unable to reset or start over
- 📏 Lacks customization options
- 🕰️ Inconsistent tracking of days

**Reported bugs**

- App gets stuck on certain days
- Progress data randomly deleted or reset
- Inability to move to next day after completing tasks

**Requested features**

- Option to track water in imperial units
- Ability to manually update weight instead of scrolling
- Settings to adjust app behavior


### FlexChallenge

[App page](https://appshunter.io/ios/app/flexchallenge/id6757351926)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FlexChallenge Pro Monthly | $3.99 | per month |
| FlexChallenge Pro Yearly | $24.99 | per year |


## Frequently asked questions

### Is 75 Tough & Soft Challenge free?

75 Tough & Soft Challenge is free to download, with in-app purchases available.

### Is FlexChallenge free?

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

### Do 75 Tough & Soft Challenge or FlexChallenge have ads?

Neither 75 Tough & Soft Challenge nor FlexChallenge shows ads.

### Which is updated more often, 75 Tough & Soft Challenge or FlexChallenge?

75 Tough & Soft Challenge ships an update every 3 weeks, and FlexChallenge every 6 days. Most recently, 75 Tough & Soft Challenge was updated on November 7, 2026 and FlexChallenge on October 28, 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.*