# NEXA® vs OBSERV 520x

The clearest difference is rating: OBSERV 520x at 5.0 against NEXA®'s 4.3. OBSERV 520x also leads on update cadence (every 2 weeks vs monthly). On price, ratings volume, ads and in-app purchases 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 holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 6 and 5 respectively.

NEXA® ships an update monthly, OBSERV 520x every 2 weeks. The most recent releases landed on August 15, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | NEXA® | OBSERV 520x |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (6 ratings)](https://appshunter.io/ios/app/nexa/id1229122895/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/observ-520x/id1495658461/reviews)** |
| Number of ratings | **6** | 5 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 297 MB | 103 MB |
| Requires iOS | 17.0 | **16.6** |
| Devices | iPad | iPad |
| Age rating | 12+ | 4+ |
| Developer | [Canfield Scientific, Inc](https://appshunter.io/developer/414882121) | [InnoFaith beauty sciences B.V.](https://appshunter.io/developer/583003631) |

## What reviewers say

### NEXA®

[App page](https://appshunter.io/ios/app/nexa/id1229122895)

This app empowers skincare professionals to conduct detailed skin analysis using advanced imaging. It allows for precise image capture, personalized analysis, and client engagement to enhance consultations and drive results.

**Highlights:** Conduct skincare consultations, Capture and analyze consumer images, Magnification and visualization loupe, Cloud infrastructure for database, Client portal integration, Business analytics dashboard integration

**Features:** Vision Pro support

**In-app purchases:** none


### 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


## Frequently asked questions

### Is NEXA® free?

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

### Is OBSERV 520x free?

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

### Which has better reviews, NEXA® or OBSERV 520x?

OBSERV 520x is rated higher. NEXA® averages 4.3 out of 5 from 6 ratings, while OBSERV 520x averages 5.0 from 5 ratings.

### Do NEXA® or OBSERV 520x have ads?

Neither NEXA® nor OBSERV 520x shows ads.

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

NEXA® ships an update monthly, and OBSERV 520x every 2 weeks. Most recently, NEXA® was updated on August 15, 2026 and OBSERV 520x on September 24, 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.*