# Challenge Tracker vs Saelyx

The clearest difference is update cadence: Saelyx at every 3 days against Challenge Tracker's monthly. Challenge Tracker's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases 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 and Saelyx sells 6 in-app purchases, starting at $17.99 per month. Whichever you choose, the download price is not the number that matters.

Challenge Tracker ships an update monthly, Saelyx every 3 days. The most recent releases landed on October 2, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Challenge Tracker | Saelyx |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 60 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 12+ |
| Developer | [Nikita Shestak](https://appshunter.io/developer/1023359447) | [Adianny Ramirez](https://appshunter.io/developer/1894714661) |

## What reviewers say

### 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 |


### Saelyx

[App page](https://appshunter.io/ios/app/saelyx/id6778351940)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Saelyx Pro | $17.99 | per month |
| Saelyx Premium | $34.99 | per month |
| Saelyx Ultra | $69.99 | per month |
| Saelyx Pro Annual | $179.00 | per year |
| Saelyx Premium Annual | $349.00 | per year |
| Saelyx Ultra Annual | $699.00 | per year |


## Frequently asked questions

### Is Challenge Tracker free?

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

### Is Saelyx free?

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

### Do Challenge Tracker or Saelyx have ads?

Neither Challenge Tracker nor Saelyx shows ads.

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

Challenge Tracker ships an update monthly, and Saelyx every 3 days. Most recently, Challenge Tracker was updated on October 2, 2026 and Saelyx on October 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.*