# Varzo vs Nox

The clearest difference is in-app purchases: Nox at none against Varzo's 1. Varzo's advantage is ratings volume (5 vs 1). On price, rating, ads and device support there is nothing between them.

Both are free to download. Varzo sells 1 in-app purchase, starting at $9.99 per year. Nox asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Varzo against 5.0 for Nox. That said, the two scores are not equally well evidenced: Varzo has 5 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | Varzo | Nox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/varzo/id6757185090/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/nox-sleep-habit/id6781853307/reviews) |
| Number of ratings | **5** | 1 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 days | — |
| Monetization | Freemium | **Free** |
| Size | 6 MB | 2 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Pankaj Sharma](https://appshunter.io/developer/1865118174) | [Silvia Stocchi](https://appshunter.io/developer/6781853309) |

## What reviewers say

### Varzo

[App page](https://appshunter.io/ios/app/varzo/id6757185090)

This app analyzes your Apple Watch and Health data to provide insights into recovery, sleep, strain, and energy levels. It offers AI-powered coaching and personalized goal setting to help you train smarter and recover better. All data processing is done privately on your device.

**Highlights:** Recovery Score analysis, Sleep stage tracking, Cardiovascular strain monitoring, Real-time energy level tracking, Personalized goal setting, 7, 30, 90-day trend analysis, On-device AI coaching

**Features:** Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| varzo Annual | $9.99 | per year |


### Nox

[App page](https://appshunter.io/ios/app/nox-sleep-habit/id6781853307)

This app helps you understand your sleep patterns by asking simple questions about your sleep duration and daily focus. It then analyzes your data to suggest an ideal bedtime and wake time based on your personal history, without requiring any wearables or sensors.

**Highlights:** Log sleep duration, Rate daily focus, Personalized sleep duration calculation, Ideal bedtime and wake time suggestions, Flag unusual nights, Review observation log, On-device data storage

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

**In-app purchases:** none


## Frequently asked questions

### Is Varzo free?

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

### Is Nox free?

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

### Which has better reviews, Varzo or Nox?

Varzo and Nox are both rated 5.0 out of 5 on the App Store, from 5 and 1 ratings respectively.

### Do Varzo or Nox have ads?

Neither Varzo nor Nox 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.*