# Happiness Rings vs Sleep Tracker

The clearest difference is in-app purchases: Sleep Tracker at none against Happiness Rings's 3. Sleep Tracker also leads on update cadence (every 6 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Happiness Rings sells 3 in-app purchases, starting at $0.99 per 7 days. Sleep Tracker asks for nothing beyond the download.

Happiness Rings ships an update monthly, Sleep Tracker every 6 days. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Happiness Rings | Sleep Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 6 days** |
| Size | 26 MB | 24 MB |
| Requires iOS | **17** | 18.0 |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [BPA TARGET S.R.L.](https://appshunter.io/developer/1827241287) | [Sven Kraln](https://appshunter.io/developer/6816678493) |

## What reviewers say

### Happiness Rings

[App page](https://appshunter.io/ios/app/happiness-rings-joy-tracker/id6755226784)

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $0.99 | per 7 days |
| Monthly | $2.99 | per month |
| Yearly | $19.99 | per year |


### Sleep Tracker

[App page](https://appshunter.io/ios/app/sleep-tracker-cernidia/id6816678341)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Happiness Rings free?

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

### Is Sleep Tracker free?

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

### Do Happiness Rings or Sleep Tracker have ads?

Neither Happiness Rings nor Sleep Tracker shows ads.

### Which is updated more often, Happiness Rings or Sleep Tracker?

Happiness Rings ships an update monthly, and Sleep Tracker every 6 days. Most recently, Happiness Rings was updated on October 25, 2026 and Sleep Tracker on October 31, 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.*