# Brushr vs Sleep Debt Tracker Calculator

The clearest difference is in-app purchases: Brushr at none against Sleep Debt Tracker Calculator's 3. Sleep Debt Tracker Calculator's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Sleep Debt Tracker Calculator sells 3 in-app purchases, starting at $5.99 per 7 days. Brushr asks for nothing beyond the download.

Brushr ships an update every 2 months, Sleep Debt Tracker Calculator every 3 weeks. The most recent releases landed on October 6, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Brushr | Sleep Debt Tracker Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 2 MB | 5 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mark Howard](https://appshunter.io/developer/1738787609) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## What reviewers say

### Brushr

[App page](https://appshunter.io/ios/app/brushr/id6480352002)

**Features:** Apple Watch app

**In-app purchases:** none


### Sleep Debt Tracker Calculator

[App page](https://appshunter.io/ios/app/sleep-debt-tracker-calculator/id6771320331)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $5.99 | per 7 days |
| Yearly | $29.99 | per year |
| Lifetime Pro | $59.99 | one-time |


## Frequently asked questions

### Is Brushr free?

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

### Is Sleep Debt Tracker Calculator free?

Sleep Debt Tracker Calculator is free to download, with in-app purchases available.

### Do Brushr or Sleep Debt Tracker Calculator have ads?

Neither Brushr nor Sleep Debt Tracker Calculator shows ads.

### Which is updated more often, Brushr or Sleep Debt Tracker Calculator?

Brushr ships an update every 2 months, and Sleep Debt Tracker Calculator every 3 weeks. Most recently, Brushr was updated on October 6, 2026 and Sleep Debt Tracker Calculator on October 11, 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.*