# Sleep Ledger vs Sleep Debt Tracker Calculator

The clearest difference is update cadence: Sleep Ledger at every 9 days against Sleep Debt Tracker Calculator's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Sleep Ledger sells 4 in-app purchases, starting at $4.99 per month and Sleep Debt Tracker Calculator sells 3 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Sleep Ledger ships an update every 9 days, Sleep Debt Tracker Calculator every 3 weeks. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Sleep Ledger | Sleep Debt Tracker Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/sleep-ledger-debt-tracker/id6759897307/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | Freemium | — |
| Size | 8 MB | 5 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Takumi Kanzaki](https://appshunter.io/developer/1820952468) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## What reviewers say

### Sleep Ledger

[App page](https://appshunter.io/ios/app/sleep-ledger-debt-tracker/id6759897307)

This app analyzes your sleep data from Apple Health to calculate your sleep debt and provides a personalized daily plan to help you recover. It offers insights into sleep quality and a clear path to reaching your sleep goals.

**Highlights:** Sleep debt calculation, Personalized recovery plan, Quality-weighted sleep score, Calendar-based schedule, Lock screen widgets, On-device processing, Siri Shortcuts

**Features:** Apple Watch app

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| SleepLegder Premium (3Months) | $11.99 | per 3 months |
| Annual | $29.99 | per year |
| Lifetime | $79.99 | one-time |


### 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 Sleep Ledger free?

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

### Is Sleep Debt Tracker Calculator free?

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

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

Neither Sleep Ledger nor Sleep Debt Tracker Calculator shows ads.

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

Sleep Ledger ships an update every 9 days, and Sleep Debt Tracker Calculator every 3 weeks. Most recently, Sleep Ledger was updated on October 28, 2026 and Sleep Debt Tracker Calculator on October 25, 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.*