# OBSERV 520x vs EndermoLink

The clearest difference is ads: OBSERV 520x at none against EndermoLink's shown. OBSERV 520x also leads on update cadence (every 2 weeks vs every 2 months). EndermoLink's advantage is device support (3 vs 1). On price, in-app purchases and iOS requirement there is nothing between them.

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

OBSERV 520x ships an update every 2 weeks, EndermoLink every 2 months. The most recent releases landed on September 24, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | OBSERV 520x | EndermoLink |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/observ-520x/id1495658461/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free | — |
| Size | 103 MB | 68 MB |
| Requires iOS | 16.6 | 16.6 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [InnoFaith beauty sciences B.V.](https://appshunter.io/developer/583003631) | [LPG Systems](https://appshunter.io/developer/440519837) |

## What reviewers say

### OBSERV 520x

[App page](https://appshunter.io/ios/app/observ-520x/id1495658461)

This professional tool uses advanced visualization technology to analyze skin concerns from various perspectives. It helps professionals engage clients by providing objective images of skin conditions, demonstrating treatment progress, and informing treatment plans.

**Highlights:** Advanced skin visualization technology, Objective imaging of skin concerns, Client engagement and consultation tool, Treatment progress tracking, Inform treatment plan adjustments, Insight into subsurface skin layers

**In-app purchases:** none


### EndermoLink

[App page](https://appshunter.io/ios/app/endermolink/id6636480754)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OBSERV 520x free?

OBSERV 520x is free to download, with no in-app purchases.

### Is EndermoLink free?

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

### Do OBSERV 520x or EndermoLink have ads?

EndermoLink shows ads; OBSERV 520x does not.

### Which is updated more often, OBSERV 520x or EndermoLink?

OBSERV 520x ships an update every 2 weeks, and EndermoLink every 2 months. Most recently, OBSERV 520x was updated on September 24, 2026 and EndermoLink on September 17, 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.*