# PEER vs Five Elements Harmony

The clearest difference is update cadence: Five Elements Harmony at monthly against PEER's every 5 months. Five Elements Harmony also leads on iOS requirement (15.6 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PEER sells 10 one-off in-app purchases and Five Elements Harmony sells 3 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

PEER ships an update every 5 months, Five Elements Harmony monthly. The most recent releases landed on September 19, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | PEER | Five Elements Harmony |
| --- | --- | --- |
| 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 | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | Free | — |
| Size | 71 MB | 2 MB |
| Requires iOS | 17.6 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [BrainWave Software](https://appshunter.io/developer/1575971305) | [天佑 伍](https://appshunter.io/developer/1846286944) |

## 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 |


### Five Elements Harmony

[App page](https://appshunter.io/ios/app/five-elements-harmony/id6755288749)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $5.99 | per month |
| Quarterly Premium | $14.99 | per 3 months |
| Yearly Premium | $53.99 | per year |


## Frequently asked questions

### Is PEER free?

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

### Is Five Elements Harmony free?

Five Elements Harmony is free to download, with in-app purchases available.

### Do PEER or Five Elements Harmony have ads?

Neither PEER nor Five Elements Harmony shows ads.

### Which is updated more often, PEER or Five Elements Harmony?

PEER ships an update every 5 months, and Five Elements Harmony monthly. Most recently, PEER was updated on September 19, 2026 and Five Elements Harmony 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.*