# Calories Combat vs Oona

The clearest difference is price: Calories Combat at Free against Oona's $1.99. Oona's advantage is iOS requirement (15.1 vs 17.4). On ads, in-app purchases and device support there is nothing between them.

Calories Combat is free to download; Oona costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Calories Combat | Oona |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | — | **[4.9 (22 ratings)](https://appshunter.io/ios/app/oona-ferber-method-timer/id6747005575/reviews)** |
| Number of ratings | — | **22** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Monthly |
| Monetization | — | Free |
| Size | 25 MB | 36 MB |
| Requires iOS | 17.4 | **15.1** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Max Wesel](https://appshunter.io/developer/1063887936) | [Thomas Pang](https://appshunter.io/developer/1819342453) |

## What reviewers say

### Calories Combat

[App page](https://appshunter.io/ios/app/calories-combat/id6738380842)

**Features:** macOS Compatibility

**In-app purchases:** none


### Oona

[App page](https://appshunter.io/ios/app/oona-ferber-method-timer/id6747005575)

Simplify sleep training with guided timers and progress tracking. This app offers step-by-step support, customizable plans, and visual charts to help parents manage their baby's sleep routines.

**Highlights:** Step-by-step sleep training support, Customizable sleep plans, Built-in timers for wait intervals, Progress tracking with visual charts, Detailed night logs and insights, Ferber method guidance

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

**In-app purchases:** none


## Frequently asked questions

### Is Calories Combat free?

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

### Is Oona free?

Oona costs $1.99, with no in-app purchases.

### Do Calories Combat or Oona have ads?

Neither Calories Combat nor Oona shows ads.

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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.*