# SMART Weight Management vs Sleep Better with Science

The clearest difference is update cadence: Sleep Better with Science at every 2 weeks against SMART Weight Management's monthly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SMART Weight Management ships an update monthly, Sleep Better with Science every 2 weeks. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | SMART Weight Management | Sleep Better with Science |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Size | 54 MB | 39 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [SMART Weight Management](https://appshunter.io/developer/1686935675) | [Craftbyte d.o.o.](https://appshunter.io/developer/1790874844) |

## What reviewers say

### SMART Weight Management

[App page](https://appshunter.io/ios/app/smart-weight-management/id6448923494)

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

**In-app purchases:** none


### Sleep Better with Science

[App page](https://appshunter.io/ios/app/sleep-better-with-science/id6761481421)

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

**In-app purchases:** none


## Frequently asked questions

### Is SMART Weight Management free?

SMART Weight Management is free to download, with no in-app purchases.

### Is Sleep Better with Science free?

Sleep Better with Science is free to download, with no in-app purchases.

### Do SMART Weight Management or Sleep Better with Science have ads?

Neither SMART Weight Management nor Sleep Better with Science shows ads.

### Which is updated more often, SMART Weight Management or Sleep Better with Science?

SMART Weight Management ships an update monthly, and Sleep Better with Science every 2 weeks. Most recently, SMART Weight Management was updated on October 30, 2026 and Sleep Better with Science on October 24, 2026.

---

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