# Calorie Detect vs OneCal Calorie Tracker

The clearest difference is in-app purchases: OneCal Calorie Tracker at none against Calorie Detect's 1. OneCal Calorie Tracker also leads on update cadence (every 9 days vs every 3 weeks). Calorie Detect's advantage is ads (none vs shown) and iOS requirement (10.0 vs 18.6). On price and device support there is nothing between them.

Both are free to download. Calorie Detect sells 1 one-off in-app purchase. OneCal Calorie Tracker asks for nothing beyond the download.

Calorie Detect ships an update every 3 weeks, OneCal Calorie Tracker every 9 days. The most recent releases landed on October 4, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Calorie Detect | OneCal Calorie Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Size | 20 MB | 5 MB |
| Requires iOS | **10.0** | 18.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Wonder Framer Company Limited](https://appshunter.io/developer/1328971293) | [Marcus Spitzmiller](https://appshunter.io/developer/1844961002) |

## What reviewers say

### Calorie Detect

[App page](https://appshunter.io/ios/app/calorie-detect/id1347788919)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calorie Detect PRO | $0.99 | one-time |


### OneCal Calorie Tracker

[App page](https://appshunter.io/ios/app/onecal-calorie-tracker/id6753773780)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Calorie Detect free?

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

### Is OneCal Calorie Tracker free?

OneCal Calorie Tracker is free to download, with no in-app purchases.

### Do Calorie Detect or OneCal Calorie Tracker have ads?

OneCal Calorie Tracker shows ads; Calorie Detect does not.

### Which is updated more often, Calorie Detect or OneCal Calorie Tracker?

Calorie Detect ships an update every 3 weeks, and OneCal Calorie Tracker every 9 days. Most recently, Calorie Detect was updated on October 4, 2026 and OneCal Calorie Tracker on October 3, 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.*