# ReViiV vs OnTopic Memory + Hearing

The clearest difference is price: ReViiV at Free against OnTopic Memory + Hearing's $0.99. OnTopic Memory + Hearing's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.

ReViiV is free to download; OnTopic Memory + Hearing costs $0.99 up front. ReViiV sells 2 in-app purchases, starting at $0.99 per month. OnTopic Memory + Hearing asks for nothing beyond the download.

## The numbers

| Metric | ReViiV | OnTopic Memory + Hearing |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.5 (8 ratings)](https://appshunter.io/ios/app/reviiv/id1557588292/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | — |
| Monetization | Free with in-app purchases | — |
| Size | 25 MB | 2 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Martysoft LLC](https://appshunter.io/developer/1493293014) | [Outerspacious Software LLC](https://appshunter.io/developer/529433907) |

## What reviewers say

### ReViiV

[App page](https://appshunter.io/ios/app/reviiv/id1557588292)

This app offers customized daily breathing exercises designed to alleviate post-viral symptoms like fatigue, brain fog, and loss of taste/smell. It utilizes scientifically backed techniques across 16 progressive stages to promote steady improvement and symptom relief.

**Highlights:** Customized daily breathing exercises, 16 progressive stages for improvement, Relief from fatigue, brain fog, taste/smell loss, 8 scientifically backed techniques, Weekly progress assessments and graphs, Detailed guides and technique resources

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Long Haul Breathing Therapy | $0.99 | per month |
| Long Haul Breathing Therapy | $6.99 | per year |


### OnTopic Memory + Hearing

[App page](https://appshunter.io/ios/app/ontopic-memory-plus-hearing/id6472342720)

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

**In-app purchases:** none


## Frequently asked questions

### Is ReViiV free?

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

### Is OnTopic Memory + Hearing free?

OnTopic Memory + Hearing costs $0.99, with no in-app purchases.

### Do ReViiV or OnTopic Memory + Hearing have ads?

Neither ReViiV nor OnTopic Memory + Hearing shows ads.

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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.*