# Onntrack Pro vs Fasting Timer Pro

The clearest difference is price: Onntrack Pro at Free against Fasting Timer Pro's $4.99. Onntrack Pro also leads on iOS requirement (12.0 vs 17.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

Onntrack Pro is free to download; Fasting Timer Pro costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Onntrack Pro ships an update every 3 days, Fasting Timer Pro every 2 days. The most recent releases landed on September 13, 2026 and August 26, 2026 respectively.

## The numbers

| Metric | Onntrack Pro | Fasting Timer Pro |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fasting-timer-pro/id6758459211/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 days | **Every 2 days** |
| Monetization | — | Paid |
| Size | 113 MB | 4 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [H-gen Beheer B.V.](https://appshunter.io/developer/1706266493) | [POWER SATELLITE LLC](https://appshunter.io/developer/1809833198) |

## What reviewers say

### Onntrack Pro

[App page](https://appshunter.io/ios/app/onntrack-pro/id6464569532)

**In-app purchases:** none


### Fasting Timer Pro

[App page](https://appshunter.io/ios/app/fasting-timer-pro/id6758459211)

Easily track your fasting sessions with flexible timing options and a clean interface. Monitor your progress with session history and educational insights into your body's stages. Receive local notifications for important milestones.

**Highlights:** Preset and custom fasting durations, Retroactive start time setting, Extend active fasts, Educational body stage timeline, Session history and progress tracking, Local notifications

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

**In-app purchases:** none


## Frequently asked questions

### Is Onntrack Pro free?

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

### Is Fasting Timer Pro free?

Fasting Timer Pro costs $4.99, with no in-app purchases.

### Do Onntrack Pro or Fasting Timer Pro have ads?

Neither Onntrack Pro nor Fasting Timer Pro shows ads.

### Which is updated more often, Onntrack Pro or Fasting Timer Pro?

Onntrack Pro ships an update every 3 days, and Fasting Timer Pro every 2 days. Most recently, Onntrack Pro was updated on September 13, 2026 and Fasting Timer Pro on August 26, 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.*