# SleepCalc vs Backlogged

The clearest difference is in-app purchases: SleepCalc at none against Backlogged's 2. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Backlogged sells 2 in-app purchases, starting at $3.99 per month. SleepCalc asks for nothing beyond the download.

## The numbers

| Metric | SleepCalc | Backlogged |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/backlogged-sleep-tracker/id6746973030/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Monetization | — | Freemium |
| Size | 2 MB | 3 MB |
| Requires iOS | 18.1 | **17** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Emi Sato](https://appshunter.io/developer/1780442627) | [Aaron Dunn](https://appshunter.io/developer/1819274515) |

## What reviewers say

### SleepCalc

[App page](https://appshunter.io/ios/app/sleepcalc/id6739146424)

**Features:** macOS Compatibility

**In-app purchases:** none


### Backlogged

[App page](https://appshunter.io/ios/app/backlogged-sleep-tracker/id6746973030)

This app helps you understand and reduce your sleep debt for increased energy and focus. It provides a single, clear number for your sleep debt, personalized insights, and actionable targets to improve your sleep habits. All your data is securely stored on your device and privately backed up.

**Highlights:** Automatic sleep data import from Apple Health, Single Sleep Debt Number visualization, Understandable sleep debt charts, Personalized targets for sleep debt reduction, Dynamic sleep debt calculation options, Private iCloud sync across devices

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Backlogged Monthly | $3.99 | per month |
| Backlogged Annual | $19.99 | per year |


## Frequently asked questions

### Is SleepCalc free?

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

### Is Backlogged free?

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

### Do SleepCalc or Backlogged have ads?

Neither SleepCalc nor Backlogged shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*