# MindViewer vs Bergson

The clearest difference is iOS requirement: Bergson at 9.0 against MindViewer's 15.0. On price, review sentiment, update cadence and ads there is nothing between them.

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

MindViewer ships an update every 4 months, Bergson every 2 months. Both last shipped on November 2, 2026.

## The numbers

| Metric | MindViewer | Bergson |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 126 MB | 63 MB |
| Requires iOS | 15.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Neeuro Pte Ltd](https://appshunter.io/developer/960758140) | [Gebr. Heinemann SE & Co. KG](https://appshunter.io/developer/474735796) |

## What reviewers say

### MindViewer

[App page](https://appshunter.io/ios/app/mindviewer/id1436471710)

Understand your mental state during activities like studying, working, or resting. This tool visualizes your attention, relaxation, and mental workload using brain signal data from a compatible sensor.

**Highlights:** Visualize mental states, Track attention and relaxation, Measure mental workload, Analyze brain frequencies (delta, theta, alpha, beta, gamma), Record mental state during activities, Compare effectiveness of different activities

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

**In-app purchases:** none


### Bergson

[App page](https://appshunter.io/ios/app/bergson/id1443743026)

Track your daily activity, including steps, distance, calories, sleep, and heart rate from your first-generation smartwatch. Receive phone notifications for calls, SMS, emails, and social media directly on your wrist.

**Highlights:** Daily activity tracking (steps, distance, calories), Sleep quality monitoring, Heart rate display and graphing, Phone notification mirroring (calls, SMS, email, social media), Compatibility with specific Bergson smartwatch models

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MindViewer free?

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

### Is Bergson free?

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

### Do MindViewer or Bergson have ads?

Neither MindViewer nor Bergson shows ads.

### Which is updated more often, MindViewer or Bergson?

MindViewer ships an update every 4 months, and Bergson every 2 months. Most recently, MindViewer was updated on November 2, 2026 and Bergson on November 2, 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.*