# Xenioss vs Challenge Tracker

The clearest difference is in-app purchases: Xenioss at none against Challenge Tracker's 3. Xenioss also leads on iOS requirement (13.0 vs 15.0). Challenge Tracker's advantage is update cadence (monthly vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. Challenge Tracker sells 3 in-app purchases, starting at $9.99 per month. Xenioss asks for nothing beyond the download.

Xenioss ships an update every 5 months, Challenge Tracker monthly. Both last shipped on September 15, 2026.

## The numbers

| Metric | Xenioss | Challenge Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 21 MB | 20 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Martherus Holding B.V.](https://appshunter.io/developer/1454815084) | [Nikita Shestak](https://appshunter.io/developer/1023359447) |

## What reviewers say

### Xenioss

[App page](https://appshunter.io/ios/app/xenioss/id1454815085)

**Features:** macOS Compatibility

**In-app purchases:** none


### Challenge Tracker

[App page](https://appshunter.io/ios/app/challenge-tracker-askesis/id6755964020)

This app helps you build lasting habits through short, focused commitment cycles of 7-90 days. It emphasizes clear beginnings and endings to foster permanent change without the pressure of endless streaks or guilt from missed days.

**Highlights:** Short commitment cycles (7-90 days), Focus on lasting change, No endless streaks or guilt, Track progress visually, Simple system for good/bad habits

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $9.99 | per month |
| Yearly | $39.99 | per year |
| 3-day trial | $39.99 | per year |


## Frequently asked questions

### Is Xenioss free?

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

### Is Challenge Tracker free?

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

### Do Xenioss or Challenge Tracker have ads?

Neither Xenioss nor Challenge Tracker shows ads.

### Which is updated more often, Xenioss or Challenge Tracker?

Xenioss ships an update every 5 months, and Challenge Tracker monthly. Most recently, Xenioss was updated on September 15, 2026 and Challenge Tracker on September 15, 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.*