# OBSERV 520 vs FlameInMind

The clearest difference is price: OBSERV 520 at Free against FlameInMind's $159.99. FlameInMind's advantage is rating (4.7 vs 3.0) and review sentiment (67% vs 33%). On update cadence, ads and in-app purchases there is nothing between them.

OBSERV 520 is free to download; FlameInMind costs $159.99 up front. Neither carries in-app purchases, so what you see is what you pay.

FlameInMind holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: FlameInMind has 12 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 33% of OBSERV 520's written reviews are positive against 67% of FlameInMind's.

OBSERV 520 ships an update every 4 months, FlameInMind every 2 months. The most recent releases landed on October 7, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | OBSERV 520 | FlameInMind |
| --- | --- | --- |
| Price | **Free** | $159.99 |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/observ-520/id781554722/reviews) | **[4.7 (12 ratings)](https://appshunter.io/ios/app/flameinmind/id1257645702/reviews)** |
| Number of ratings | 1 | **12** |
| Positive reviews | 33.3% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | **Free** | Paid |
| Size | 48 MB | 16 MB |
| Requires iOS | 12.0 | **9.3** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [InnoFaith beauty sciences](https://appshunter.io/developer/583003631) | [Patrick Botte](https://appshunter.io/developer/1116818240) |

## What reviewers say

### OBSERV 520

[App page](https://appshunter.io/ios/app/observ-520/id781554722)

This professional skin analysis tool uses an iPad and specialized device to visualize skin conditions not visible to the naked eye. It aids in diagnosing, planning treatments, and advising clients on personalized skincare and product recommendations. The app allows for easy capture and comparison of before-and-after images to monitor treatment progress.

**Highlights:** Full-face skin analysis, Epidermal and dermal layer diagnosis, Targeted treatment planning, Personalized product advice, Live visualization of skin conditions, Before and after image monitoring, Multiple light modes (Daylight, Wood's/UV/Cross/Parallel Polarization)

**In-app purchases:** none


### FlameInMind

[App page](https://appshunter.io/ios/app/flameinmind/id1257645702)

This app analyzes your brain and heart activity, translating body signals into sacred geometry graphs. It links body wave coherence to Phi and octave ratios, offering binaural sound waves to help achieve bliss states.

**Highlights:** Real-time brain and heart activity data collection, Sacred geometry graph generation, Links body waves to Phi and octave ratios, Binaural sound waves for bliss states, Supports latest Muse headband sensors, Bluetooth data reception, display, and storage

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

**In-app purchases:** none


## Frequently asked questions

### Is OBSERV 520 free?

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

### Is FlameInMind free?

FlameInMind costs $159.99, with no in-app purchases.

### Which has better reviews, OBSERV 520 or FlameInMind?

FlameInMind is rated higher. OBSERV 520 averages 3.0 out of 5 from 1 ratings, while FlameInMind averages 4.7 from 12 ratings.

### Do OBSERV 520 or FlameInMind have ads?

Neither OBSERV 520 nor FlameInMind shows ads.

### Which is updated more often, OBSERV 520 or FlameInMind?

OBSERV 520 ships an update every 4 months, and FlameInMind every 2 months. Most recently, OBSERV 520 was updated on October 7, 2026 and FlameInMind on October 3, 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.*