# PFA Mobile vs 一起动动脑

The clearest difference is in-app purchases: PFA Mobile at none against 一起动动脑's 1. 一起动动脑's advantage is update cadence (every 3 months vs every 13 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 一起动动脑 sells 1 one-off in-app purchase. PFA Mobile asks for nothing beyond the download.

PFA Mobile ships an update every 13 months, 一起动动脑 every 3 months. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | PFA Mobile | 一起动动脑 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (11 ratings)](https://appshunter.io/ios/app/pfa-mobile/id551079424/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 30 MB | 2 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [US Department of Veterans Affairs (VA)](https://appshunter.io/developer/430646305) | [Libing Deng](https://appshunter.io/developer/911273977) |

## What reviewers say

### PFA Mobile

[App page](https://appshunter.io/ios/app/pfa-mobile/id551079424)

This app assists responders in providing psychological first aid to adults, families, and children. It offers summaries of PFA fundamentals, interventions, mentor tips, a self-assessment tool, and a survivor needs form for data collection and referrals.

**Highlights:** PFA fundamentals summaries, Interventions for specific survivor needs, Mentor tips for field application, Self-assessment tool for responder readiness, Survivor needs form for data collection, Easy referral system

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

**In-app purchases:** none


### 一起动动脑

[App page](https://appshunter.io/ios/app/id6758763252)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Head Control Pro | $0.99 | one-time |


## Frequently asked questions

### Is PFA Mobile free?

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

### Is 一起动动脑 free?

一起动动脑 is free to download, with in-app purchases available.

### Do PFA Mobile or 一起动动脑 have ads?

Neither PFA Mobile nor 一起动动脑 shows ads.

### Which is updated more often, PFA Mobile or 一起动动脑?

PFA Mobile ships an update every 13 months, and 一起动动脑 every 3 months. Most recently, PFA Mobile was updated on October 25, 2026 and 一起动动脑 on October 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.*