# Psychology vs Litera Circular

The clearest difference is in-app purchases: Litera Circular at none against Psychology's 1. Psychology's advantage is update cadence (every 10 days vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

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

Psychology ships an update every 10 days, Litera Circular every 6 weeks. The most recent releases landed on October 10, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Psychology | Litera Circular |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/psychology-concentration/id1508970654/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 6 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 193 MB | 39 MB |
| Requires iOS | 13.2 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Man Hung Sun](https://appshunter.io/developer/1471605573) | [Ambitae, Sociedad Limitada](https://appshunter.io/developer/1729143752) |

## What reviewers say

### Psychology

[App page](https://appshunter.io/ios/app/psychology-concentration/id1508970654)

This app helps users improve their concentration and focus. It provides training and teaches various techniques to enhance productivity and mental sharpness. Start your journey to better focus today.

**Highlights:** Understand concentration challenges, Training to improve focus, Learn concentration techniques, Enhance productivity, Mental focus training

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ads remove | $0.99 | one-time |


### Litera Circular

[App page](https://appshunter.io/ios/app/litera-circular/id6477376531)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Psychology free?

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

### Is Litera Circular free?

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

### Do Psychology or Litera Circular have ads?

Neither Psychology nor Litera Circular shows ads.

### Which is updated more often, Psychology or Litera Circular?

Psychology ships an update every 10 days, and Litera Circular every 6 weeks. Most recently, Psychology was updated on October 10, 2026 and Litera Circular on October 25, 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.*