# EMS Massager Pro vs Horizon Detection

The clearest difference is ads: EMS Massager Pro at none against Horizon Detection's shown. EMS Massager Pro also leads on iOS requirement (12.0 vs 17.7.2). Horizon Detection's advantage is update cadence (fortnightly vs monthly). On price, 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.

EMS Massager Pro ships an update monthly, Horizon Detection fortnightly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | EMS Massager Pro | Horizon Detection |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/horizon-detection/id6511216202/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | — | Ad-supported |
| Size | 37 MB | 35 MB |
| Requires iOS | **12.0** | 17.7.2 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [易客创新(泉州)智能科技有限公司](https://appshunter.io/developer/1683294855) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### EMS Massager Pro

[App page](https://appshunter.io/ios/app/ems-massager-pro/id1673281511)

**Features:** macOS Compatibility

**In-app purchases:** none


### Horizon Detection

[App page](https://appshunter.io/ios/app/horizon-detection/id6511216202)

This utility app identifies and highlights horizontal lines within an image. It's designed for users who need to analyze visual data for straight horizontal elements.

**Highlights:** Detects horizontal lines, Highlights detected lines, Image analysis tool, Simple interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is EMS Massager Pro free?

EMS Massager Pro is free to download, with no in-app purchases.

### Is Horizon Detection free?

Horizon Detection is free to download, with no in-app purchases.

### Do EMS Massager Pro or Horizon Detection have ads?

Horizon Detection shows ads; EMS Massager Pro does not.

### Which is updated more often, EMS Massager Pro or Horizon Detection?

EMS Massager Pro ships an update monthly, and Horizon Detection fortnightly. Most recently, EMS Massager Pro was updated on November 3, 2026 and Horizon Detection on October 30, 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.*