# Fitness Challenges vs Parameter

The clearest difference is ads: Parameter at none against Fitness Challenges's shown. Parameter also leads on update cadence (every 2 days vs every 3 weeks). Fitness Challenges's advantage is ratings volume (3 vs 1) and iOS requirement (15.1 vs 17.0). On price, rating, in-app purchases and device support there is nothing between them.

Both are free to download. Fitness Challenges sells 2 in-app purchases, starting at $7.99 per month and Parameter sells 1 in-app purchase, starting at $1.00 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Fitness Challenges against 5.0 for Parameter. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

Fitness Challenges ships an update every 3 weeks, Parameter every 2 days. The most recent releases landed on October 17, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Fitness Challenges | Parameter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/fitness-challenges-rebase/id6758211227/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/parameter/id6788824119/reviews) |
| Number of ratings | **3** | 1 |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | Freemium | — |
| Size | 65 MB | 20 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | 12+ | 4+ |
| Developer | [docode AB](https://appshunter.io/developer/1871478197) | [JACOB CLINTON PEWITT YANCEY](https://appshunter.io/developer/6788824121) |

## What reviewers say

### Fitness Challenges

[App page](https://appshunter.io/ios/app/fitness-challenges-rebase/id6758211227)

This app fosters workout accountability by connecting you with friends. Set weekly goals, invite your crew, and track your progress together. Receive weekly recaps and engage with friends through cheers and comments.

**Highlights:** Create challenges with friends, Set personal weekly workout targets, Check in with photo optional, Weekly recap and leaderboard, Join open challenges, Import Strava activities (Pro)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rebase Pro Monthly | $7.99 | per month |
| Rebase Pro Yearly | $59.99 | per year |


### Parameter

[App page](https://appshunter.io/ios/app/parameter/id6788824119)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Parameter Monthly | $1.00 | per month |


## Frequently asked questions

### Is Fitness Challenges free?

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

### Is Parameter free?

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

### Which has better reviews, Fitness Challenges or Parameter?

Fitness Challenges and Parameter are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.

### Do Fitness Challenges or Parameter have ads?

Fitness Challenges shows ads; Parameter does not.

### Which is updated more often, Fitness Challenges or Parameter?

Fitness Challenges ships an update every 3 weeks, and Parameter every 2 days. Most recently, Fitness Challenges was updated on October 17, 2026 and Parameter 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.*