# Fasting Timer 16 vs Check Calo

The clearest difference is in-app purchases: Check Calo at none against Fasting Timer 16's 4. On price, update cadence, 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. Check Calo asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 7, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Fasting Timer 16 | Check Calo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 42 MB | 50 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mohamed Baddou](https://appshunter.io/developer/1867890628) | [Thach Dao Ngoc](https://appshunter.io/developer/1896047752) |

## What reviewers say

### 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 |


### Check Calo

[App page](https://appshunter.io/ios/app/check-calo/id6765718237)

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

**In-app purchases:** none


## Frequently asked questions

### Is Fasting Timer 16 free?

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

### Is Check Calo free?

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

### Do Fasting Timer 16 or Check Calo have ads?

Neither Fasting Timer 16 nor Check Calo shows ads.

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

Fasting Timer 16 ships an update every 2 months, and Check Calo every 2 months. Most recently, Fasting Timer 16 was updated on October 7, 2026 and Check Calo on October 4, 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.*