# PerioCalc vs R+ Academy

The clearest difference is update cadence: PerioCalc at every 3 months against R+ Academy's every 12 months. PerioCalc also leads on iOS requirement (14.0 vs 16.4). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PerioCalc ships an update every 3 months, R+ Academy every 12 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | PerioCalc | R+ Academy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/periocalc/id6470758932/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 12 months |
| Monetization | Free | — |
| Size | 22 MB | 49 MB |
| Requires iOS | **14.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Rutgers, The State University of New Jersey](https://appshunter.io/developer/458425733) | [The Members](https://appshunter.io/developer/1653824858) |

## What reviewers say

### PerioCalc

[App page](https://appshunter.io/ios/app/periocalc/id6470758932)

This educational tool assists dental students and professionals in understanding and applying the latest periodontal classification guidelines for staging and grading periodontitis and peri-implantitis. It offers instant results for case-based learning, focusing on the 2018 Classification.

**Highlights:** Periodontal classification learning, Staging and grading of periodontitis, Peri-implantitis classification, Case-based learning tool, Instant results, Based on 2018 Classification

**Features:** macOS Compatibility

**In-app purchases:** none


### R+ Academy

[App page](https://appshunter.io/ios/app/r-plus-academy/id6504113278)

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

**In-app purchases:** none


## Frequently asked questions

### Is PerioCalc free?

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

### Is R+ Academy free?

R+ Academy is free to download, with no in-app purchases.

### Do PerioCalc or R+ Academy have ads?

Neither PerioCalc nor R+ Academy shows ads.

### Which is updated more often, PerioCalc or R+ Academy?

PerioCalc ships an update every 3 months, and R+ Academy every 12 months. Most recently, PerioCalc was updated on November 3, 2026 and R+ Academy on November 4, 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.*