# Shallpay vs Psychology

The clearest difference is in-app purchases: Shallpay at none against Psychology's 1. Shallpay also leads on iOS requirement (12.0 vs 14.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Psychology sells 1 one-off in-app purchase. Shallpay asks for nothing beyond the download.

Shallpay ships an update fortnightly, Psychology every 10 days. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Shallpay | Psychology |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 10 days** |
| Size | 62 MB | 197 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [上海远韬软件科技有限公司](https://appshunter.io/developer/1087708027) | [Man Hung Sun](https://appshunter.io/developer/1471605573) |

## What reviewers say

### Shallpay

[App page](https://appshunter.io/ios/app/shallpay/id1382582967)

**Features:** macOS Compatibility

**In-app purchases:** none


### Psychology

[App page](https://appshunter.io/ios/app/psychology-humanity-weakness/id1623066055)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade | $0.99 | one-time |


## Frequently asked questions

### Is Shallpay free?

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

### Is Psychology free?

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

### Do Shallpay or Psychology have ads?

Neither Shallpay nor Psychology shows ads.

### Which is updated more often, Shallpay or Psychology?

Shallpay ships an update fortnightly, and Psychology every 10 days. Most recently, Shallpay was updated on November 2, 2026 and Psychology on October 30, 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.*