# PEER vs Propulsion

The clearest difference is in-app purchases: Propulsion at none against PEER's 10. Propulsion also leads on update cadence (every 3 weeks vs every 5 months) and iOS requirement (15.1 vs 17.6). PEER's advantage is review sentiment (100% vs 71%). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. PEER sells 10 one-off in-app purchases. Propulsion asks for nothing beyond the download.

PEER ships an update every 5 months, Propulsion every 3 weeks. The most recent releases landed on September 19, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | PEER | Propulsion |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/peer/id1623717304/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **100.0% of reviews** | 71.4% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 71 MB | 22 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [BrainWave Software](https://appshunter.io/developer/1575971305) | [Propulsion Sport Inc](https://appshunter.io/developer/1626861511) |

## What reviewers say

### PEER

[App page](https://appshunter.io/ios/app/peer/id1623717304)

This app facilitates EEG data recording and ERP analysis for research studies. It connects with specific EEG headsets to collect raw data and neurological study information. Recorded data can be exported for further analysis with various neuroscience tools.

**Highlights:** EEG recording and display, Event-Related Potential (ERP) analysis, Data export to Brain Vision Analyzer or .csv, Includes N-Back and Gambling Task games, Customizable image presenter, Searchable recordings with titles and notes

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| N-Back Trial | Free | one-time |
| Gambling Task/Doors Trial | Free | one-time |
| Audio Oddball Trial | Free | one-time |
| Image Presenter Trial | Free | one-time |
| Posner Trial | Free | one-time |
| Image Presenter | $499.00 | one-time |
| Posner | $499.00 | one-time |
| Gambling Task/Doors | $499.99 | one-time |
| N-Back | $499.99 | one-time |
| Audio Oddball | $499.99 | one-time |


### Propulsion

[App page](https://appshunter.io/ios/app/propulsion/id1626861509)

This app connects work teams to encourage physical activity and well-being. Participate in challenges, track your activity, and earn rewards to boost team spirit and healthy habits.

**Highlights:** Team connection, Activity tracking integration, Active score measurement, Team and individual challenges, Leaderboard rankings, Well-being content, Rewards system

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

**In-app purchases:** none


## Frequently asked questions

### Is PEER free?

PEER is free to download, with in-app purchases available.

### Is Propulsion free?

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

### Do PEER or Propulsion have ads?

Neither PEER nor Propulsion shows ads.

### Which is updated more often, PEER or Propulsion?

PEER ships an update every 5 months, and Propulsion every 3 weeks. Most recently, PEER was updated on September 19, 2026 and Propulsion 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.*