# Fasting Tracker vs 25 Day Challenge

The clearest difference is in-app purchases: 25 Day Challenge at none against Fasting Tracker's 6. 25 Day Challenge also leads on ads (none vs shown) and iOS requirement (15.6 vs 17.0). Fasting Tracker's advantage is update cadence (every 3 days vs every 2 months). On price and device support there is nothing between them.

Both are free to download. Fasting Tracker sells 6 in-app purchases, starting at $9.99 per month. 25 Day Challenge asks for nothing beyond the download.

Fasting Tracker ships an update every 3 days, 25 Day Challenge every 2 months. The most recent releases landed on October 21, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Fasting Tracker | 25 Day Challenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/fasting-tracker-fastometer/id6599859468/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 31 MB | 27 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [Christian Nkinsi](https://appshunter.io/developer/1194066100) | [Sarah Giovinetti](https://appshunter.io/developer/1767548705) |

## What reviewers say

### Fasting Tracker

[App page](https://appshunter.io/ios/app/fasting-tracker-fastometer/id6599859468)

This app helps you track intermittent fasting windows with a simple timer and custom plans. It provides smart notifications and insights into your progress to support weight loss and health goals.

**Highlights:** Precision timer for fasting/eating windows, Customizable fasting plans (16:8, 18:6, etc.), Smart notifications for eating and fat-burning, Progress tracking and streak monitoring, Minimalist, clutter-free design

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lala Plus: Premium Acces | $9.99 | per month |
| Lala Plus: Premium Access | $9.99 | per month |
| Premium | $29.99 | per year |
| Lala Plus: Premium Access | $39.99 | per year |
| Lala Plus: Premium Access | $49.99 | per year |
| Lala Plus: Premium Access | $49.99 | per year |


### 25 Day Challenge

[App page](https://appshunter.io/ios/app/25-day-challenge/id6670779557)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fasting Tracker free?

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

### Is 25 Day Challenge free?

25 Day Challenge is free to download, with no in-app purchases.

### Do Fasting Tracker or 25 Day Challenge have ads?

Fasting Tracker shows ads; 25 Day Challenge does not.

### Which is updated more often, Fasting Tracker or 25 Day Challenge?

Fasting Tracker ships an update every 3 days, and 25 Day Challenge every 2 months. Most recently, Fasting Tracker was updated on October 21, 2026 and 25 Day Challenge on October 3, 2026.

---

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