# ProoFIT vs Fasting Timer 16

The clearest difference is in-app purchases: ProoFIT at none against Fasting Timer 16's 4. ProoFIT also leads on update cadence (every 3 weeks vs every 2 months) and iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. Fasting Timer 16 sells 4 in-app purchases, starting at $3.99 per 7 days. ProoFIT asks for nothing beyond the download.

ProoFIT ships an update every 3 weeks, Fasting Timer 16 every 2 months. The most recent releases landed on October 2, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | ProoFIT | Fasting Timer 16 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 418 MB | 42 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [PROOF NUTRITION LTD OOD](https://appshunter.io/developer/1737594121) | [Mohamed Baddou](https://appshunter.io/developer/1867890628) |

## What reviewers say

### ProoFIT

[App page](https://appshunter.io/ios/app/proofit/id6740689973)

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

**In-app purchases:** none


### Fasting Timer 16

[App page](https://appshunter.io/ios/app/fasting-timer-168-tracker/id6757883746)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $3.99 | per 7 days |
| Premium | $4.99 | per month |
| Premium | $34.99 | per year |
| Premium Lifetime | $69.99 | one-time |


## Frequently asked questions

### Is ProoFIT free?

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

### Is Fasting Timer 16 free?

Fasting Timer 16 is free to download, with in-app purchases available.

### Do ProoFIT or Fasting Timer 16 have ads?

Neither ProoFIT nor Fasting Timer 16 shows ads.

### Which is updated more often, ProoFIT or Fasting Timer 16?

ProoFIT ships an update every 3 weeks, and Fasting Timer 16 every 2 months. Most recently, ProoFIT was updated on October 2, 2026 and Fasting Timer 16 on October 7, 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.*