# OneCal Calorie Tracker vs Calcau

The clearest difference is in-app purchases: OneCal Calorie Tracker at none against Calcau's 3. Calcau's advantage is ads (none vs shown) and update cadence (every 2 days vs every 9 days). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Calcau sells 3 in-app purchases, starting at $2.99 per 7 days. OneCal Calorie Tracker asks for nothing beyond the download.

OneCal Calorie Tracker ships an update every 9 days, Calcau every 2 days. Both last shipped on October 30, 2026.

## The numbers

| Metric | OneCal Calorie Tracker | Calcau |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/onecal-calorie-tracker/id6753773780/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 9 days | **Every 2 days** |
| Monetization | Ad-supported | — |
| Size | 5 MB | 27 MB |
| Requires iOS | 18.6 | **18.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Marcus Spitzmiller](https://appshunter.io/developer/1844961002) | [Mykyta Pustovoit](https://appshunter.io/developer/1812331540) |

## What reviewers say

### OneCal Calorie Tracker

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

This app offers a straightforward approach to tracking daily calorie intake. It focuses on simplicity, allowing users to log their food and monitor their targets without complex calculations or features. The goal is to make calorie management quick and easy, freeing up users' time.

**Highlights:** Science-based calorie tracking, No macro calculations, No barcode scanning, Fast and simple logging, View calorie targets, Focus on calories in, calories out

**Features:** macOS Compatibility

**In-app purchases:** none


### Calcau

[App page](https://appshunter.io/ios/app/calcau-quick-calorie-tracker/id6756975463)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calcau Plus - Weekly | $2.99 | per 7 days |
| Calcau Plus - Monthly | $3.99 | per month |
| Calcau Plus - Yearly | $19.99 | per year |


## Frequently asked questions

### Is OneCal Calorie Tracker free?

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

### Is Calcau free?

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

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

OneCal Calorie Tracker shows ads; Calcau does not.

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

OneCal Calorie Tracker ships an update every 9 days, and Calcau every 2 days. Most recently, OneCal Calorie Tracker was updated on October 30, 2026 and Calcau on October 30, 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.*