# Psychology Terms Study Guide vs RCA Certificate

The clearest difference is price: RCA Certificate at Free against Psychology Terms Study Guide's $0.99. RCA Certificate also leads on update cadence (every 5 months vs every 56 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

RCA Certificate 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, RCA Certificate every 5 months. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Psychology Terms Study Guide | RCA Certificate |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 56 months | **Every 5 months** |
| Size | 30 MB | 31 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Polemics Applications LLC](https://appshunter.io/developer/482504032) | [Cogneti, LLC](https://appshunter.io/developer/690595877) |

## 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


### RCA Certificate

[App page](https://appshunter.io/ios/app/rca-certificate/id1610932123)

**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 RCA Certificate free?

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

### Do Psychology Terms Study Guide or RCA Certificate have ads?

Neither Psychology Terms Study Guide nor RCA Certificate shows ads.

### Which is updated more often, Psychology Terms Study Guide or RCA Certificate?

Psychology Terms Study Guide ships an update every 56 months, and RCA Certificate every 5 months. Most recently, Psychology Terms Study Guide was updated on October 29, 2026 and RCA Certificate on October 27, 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.*