# BodyGuardian™ Sync vs ACHIEVE study

BodyGuardian™ Sync and ACHIEVE study are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | BodyGuardian™ Sync | ACHIEVE study |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Size | 14 MB | 31 MB |
| Requires iOS | **12.4** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Boston Scientific](https://appshunter.io/developer/469401132) | [Ohio State University](https://appshunter.io/developer/436381857) |

## What reviewers say

### BodyGuardian™ Sync

[App page](https://appshunter.io/ios/app/bodyguardian-sync/id1587030827)

**In-app purchases:** none


### ACHIEVE study

[App page](https://appshunter.io/ios/app/achieve-study/id6449607497)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BodyGuardian™ Sync free?

BodyGuardian™ Sync is free to download, with no in-app purchases.

### Is ACHIEVE study free?

ACHIEVE study is free to download, with no in-app purchases.

### Do BodyGuardian™ Sync or ACHIEVE study have ads?

Neither BodyGuardian™ Sync nor ACHIEVE study shows ads.

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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.*