# Psychology Terms Study Guide vs Read Lenin

The clearest difference is price: Read Lenin at Free against Psychology Terms Study Guide's $0.99. Read Lenin also leads on update cadence (weekly vs every 56 months). Psychology Terms Study Guide's advantage is iOS requirement (12.0 vs 18.6). On ads, in-app purchases and device support there is nothing between them.

Read Lenin is free to download; Psychology Terms Study Guide costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Psychology Terms Study Guide ships an update every 56 months, Read Lenin weekly. The most recent releases landed on November 11, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Psychology Terms Study Guide | Read Lenin |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 56 months | **Weekly** |
| Size | 30 MB | 19 MB |
| Requires iOS | **12.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Polemics Applications LLC](https://appshunter.io/developer/482504032) | [Hamza Safdar](https://appshunter.io/developer/1870150788) |

## What reviewers say

### Psychology Terms Study Guide

[App page](https://appshunter.io/ios/app/psychology-terms-study-guide/id1082063435)

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

**In-app purchases:** none


### Read Lenin

[App page](https://appshunter.io/ios/app/read-lenin-the-app/id6757993620)

**Features:** macOS Compatibility, Siri integration

**In-app purchases:** none


## Frequently asked questions

### Is Psychology Terms Study Guide free?

Psychology Terms Study Guide costs $0.99, with no in-app purchases.

### Is Read Lenin free?

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

### Do Psychology Terms Study Guide or Read Lenin have ads?

Neither Psychology Terms Study Guide nor Read Lenin shows ads.

### Which is updated more often, Psychology Terms Study Guide or Read Lenin?

Psychology Terms Study Guide ships an update every 56 months, and Read Lenin weekly. Most recently, Psychology Terms Study Guide was updated on November 11, 2026 and Read Lenin on October 31, 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.*