# Sleep Time vs Backlogged

The clearest difference is ads: Backlogged at none against Sleep Time's shown. Backlogged also leads on review sentiment (100% vs 76%) and rating (5.0 vs 4.7). Sleep Time's advantage is ratings volume (5.4K vs 3). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Sleep Time sells 8 in-app purchases, starting at $4.99 per month and Backlogged sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Backlogged holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Sleep Time has 5.4K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 76% of Sleep Time's written reviews are positive against 100% of Backlogged's.

Sleep Time ships an update monthly, Backlogged every 2 weeks. The most recent releases landed on October 23, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Sleep Time | Backlogged |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (5.4K ratings)](https://appshunter.io/ios/app/sleep-time-cycle-alarm-clock/id555564825/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/backlogged-sleep-tracker/id6746973030/reviews)** |
| Number of ratings | **5.4K** | 3 |
| Positive reviews | 75.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Freemium | Freemium |
| Size | 185 MB | 3 MB |
| Requires iOS | **16.0** | 17 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Azumio Inc.](https://appshunter.io/developer/439290207) | [Aaron Dunn](https://appshunter.io/developer/1819274515) |

## What reviewers say

### Sleep Time

[App page](https://appshunter.io/ios/app/sleep-time-cycle-alarm-clock/id555564825)

This app helps you fall asleep, stay asleep, and wake up refreshed with advanced sleep cycle analysis and a smart alarm. It offers detailed sleep tracking, soundscapes, and integration with Apple Health.

**Highlights:** Smart alarm clock with single gesture setting, Sleep cycle analysis, Soundscapes and white noise for falling asleep, Detailed monthly and weekly sleep graphs, Apple Health integration, Instant Heart Rate integration, Cloud backup and restore

**Features:** Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | per month |
| Premium | $8.99 | per month |
| Premium | $9.99 | per month |
| Premium | $9.99 | per month |
| Premium | $19.99 | per 3 months |
| Premium | $29.99 | per year |
| Premium | $29.99 | per year |
| Premium | $39.99 | per year |

**What reviewers like**

- 👍 Generally a great free app
- 👍 Accurate sleep tracking
- 👍 Gentle alarm wakeup
- 👍 Helpful for sleep insights
- 👍 Dependable app for years

**What reviewers complain about**

- 🐛 Alarm doesn't always go off
- 🔊 Loud ads that can't be closed
- 🔋 Drains battery
- 🤔 Inaccurate sleep tracking
- 🐛 Crashes and bugs after updates

**Reported bugs**

- Alarm not playing sound
- App crashes when trying to view sleep history
- Unable to change alarm time
- Sleep data not recording properly

**Requested features**

- Allow alarm to play through headphones
- Provide more sleep sound options in free version
- Add ability to manually input sleep time
- Improve ad placement and volume control


### 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 Sleep Time free?

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

### Is Backlogged free?

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

### Which has better reviews, Sleep Time or Backlogged?

Backlogged is rated higher. Sleep Time averages 4.7 out of 5 from 5.4K ratings, while Backlogged averages 5.0 from 3 ratings.

### Do Sleep Time or Backlogged have ads?

Sleep Time shows ads; Backlogged does not.

### Which is updated more often, Sleep Time or Backlogged?

Sleep Time ships an update monthly, and Backlogged every 2 weeks. Most recently, Sleep Time was updated on October 23, 2026 and Backlogged on October 9, 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.*