# SleepMate Tracker & Analytics vs Lullby

The clearest difference is in-app purchases: SleepMate Tracker & Analytics at none against Lullby's 3. SleepMate Tracker & Analytics also leads on device support (3 vs 1). Lullby's advantage is update cadence (every 10 days vs every 5 weeks). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Lullby sells 3 in-app purchases, starting at $0.99 per month. SleepMate Tracker & Analytics asks for nothing beyond the download.

SleepMate Tracker & Analytics ships an update every 5 weeks, Lullby every 10 days. The most recent releases landed on October 7, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | SleepMate Tracker & Analytics | Lullby |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 10 days** |
| Size | 59 MB | 157 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Ngoc Thanh Pham](https://appshunter.io/developer/907794619) | [Anmol Kumar](https://appshunter.io/developer/1893355244) |

## What reviewers say

### SleepMate Tracker & Analytics

[App page](https://appshunter.io/ios/app/sleepmate-tracker-and-analytics/id6748441317)

**Features:** macOS Compatibility

**In-app purchases:** none


### Lullby

[App page](https://appshunter.io/ios/app/lullby/id6777150720)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lullby Pro Monthly | $0.99 | per month |
| Lullby Pro Yearly | $2.99 | per year |
| Lullby Pro Lifetime | $6.99 | one-time |


## Frequently asked questions

### Is SleepMate Tracker & Analytics free?

SleepMate Tracker & Analytics is free to download, with no in-app purchases.

### Is Lullby free?

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

### Do SleepMate Tracker & Analytics or Lullby have ads?

Neither SleepMate Tracker & Analytics nor Lullby shows ads.

### Which is updated more often, SleepMate Tracker & Analytics or Lullby?

SleepMate Tracker & Analytics ships an update every 5 weeks, and Lullby every 10 days. Most recently, SleepMate Tracker & Analytics was updated on October 7, 2026 and Lullby on October 4, 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.*