# Sleeper vs BMI calculator

The clearest difference is update cadence: Sleeper at fortnightly against BMI calculator's every 6 weeks. Sleeper also leads on iOS requirement (15 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Sleeper sells 2 in-app purchases, starting at $3.99 per month and BMI calculator sells 2 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Sleeper ships an update fortnightly, BMI calculator every 6 weeks. Both last shipped on October 25, 2026.

## The numbers

| Metric | Sleeper | BMI calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 6 weeks |
| Size | 77 MB | 28 MB |
| Requires iOS | **15** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Francisco Edeson Alves Bizerril](https://appshunter.io/developer/1841724243) | [Jeronimo Landauer](https://appshunter.io/developer/1803922448) |

## What reviewers say

### Sleeper

[App page](https://appshunter.io/ios/app/sleeper-sleep-anywhere/id6752913234)

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

**In-app purchases (2)**

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


### BMI calculator

[App page](https://appshunter.io/ios/app/bmi-calculator-weightnote/id6754455726)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Access | $0.99 | per 7 days |
| Yearly Access | $14.99 | per year |


## Frequently asked questions

### Is Sleeper free?

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

### Is BMI calculator free?

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

### Do Sleeper or BMI calculator have ads?

Neither Sleeper nor BMI calculator shows ads.

### Which is updated more often, Sleeper or BMI calculator?

Sleeper ships an update fortnightly, and BMI calculator every 6 weeks. Most recently, Sleeper was updated on October 25, 2026 and BMI 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.*