# TENS+EMS vs OneScan

The clearest difference is in-app purchases: TENS+EMS at none against OneScan's 1. TENS+EMS also leads on iOS requirement (7.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. OneScan sells 1 one-off in-app purchase. TENS+EMS asks for nothing beyond the download.

## The numbers

| Metric | TENS+EMS | OneScan |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 5 days |
| Size | 6 MB | 101 MB |
| Requires iOS | **7.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [JKH HEALTH CO., LTD.](https://appshunter.io/developer/1460435216) | [Yufei Zhihui (beijing) Technology Co., Ltd.](https://appshunter.io/developer/6782511294) |

## What reviewers say

### TENS+EMS

[App page](https://appshunter.io/ios/app/tens-plus-ems/id1186248982)

**Features:** macOS Compatibility

**In-app purchases:** none


### OneScan

[App page](https://appshunter.io/ios/app/onescan-pdf-document-scanner/id6783833539)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OneScan Unlimited | $24.99 | one-time |


## Frequently asked questions

### Is TENS+EMS free?

TENS+EMS is free to download, with no in-app purchases.

### Is OneScan free?

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

### Do TENS+EMS or OneScan have ads?

Neither TENS+EMS nor OneScan 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.*