# AB BMI Plus vs Insomnia Sheep

The clearest difference is price: AB BMI Plus at Free against Insomnia Sheep's $19.99. Insomnia Sheep's advantage is update cadence (every 5 weeks vs every 3 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

AB BMI Plus is free to download; Insomnia Sheep costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

AB BMI Plus ships an update every 3 months, Insomnia Sheep every 5 weeks. The most recent releases landed on October 17, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | AB BMI Plus | Insomnia Sheep |
| --- | --- | --- |
| Price | **Free** | $19.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Size | 9 MB | 7 MB |
| Requires iOS | 16.5 | **15** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | +4 | 4+ |
| Developer | [Alexander Berkovich](https://appshunter.io/developer/1460157188) | [Pieter Yoshua Natanael](https://appshunter.io/developer/1657373397) |

## What reviewers say

### AB BMI Plus

[App page](https://appshunter.io/ios/app/ab-bmi-plus/id1622389050)

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

**In-app purchases:** none


### Insomnia Sheep

[App page](https://appshunter.io/ios/app/insomnia-sheep/id6479727431)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AB BMI Plus free?

AB BMI Plus is free to download, with no in-app purchases.

### Is Insomnia Sheep free?

Insomnia Sheep costs $19.99, with no in-app purchases.

### Do AB BMI Plus or Insomnia Sheep have ads?

Neither AB BMI Plus nor Insomnia Sheep shows ads.

### Which is updated more often, AB BMI Plus or Insomnia Sheep?

AB BMI Plus ships an update every 3 months, and Insomnia Sheep every 5 weeks. Most recently, AB BMI Plus was updated on October 17, 2026 and Insomnia Sheep on October 16, 2026.

---

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