# Rezzimax vs OptoSense

The clearest difference is price: Rezzimax at Free against OptoSense's $9.99. Rezzimax also leads on in-app purchases (none vs 6). OptoSense's advantage is update cadence (every 5 days vs every 2 months). On ads, device support and iOS requirement there is nothing between them.

Rezzimax is free to download; OptoSense costs $9.99 up front. OptoSense sells 6 one-off in-app purchases. Rezzimax asks for nothing beyond the download.

Rezzimax ships an update every 2 months, OptoSense every 5 days. The most recent releases landed on June 5, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Rezzimax | OptoSense |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/rezzimax/id6477319735/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 4 MB | 173 MB |
| Requires iOS | **16.2** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Time Heist Entertainment, LLC](https://appshunter.io/developer/1704100479) | [NeuroSense](https://appshunter.io/developer/1805839241) |

## What reviewers say

### Rezzimax

[App page](https://appshunter.io/ios/app/rezzimax/id6477319735)

This app connects to a wellness device via Bluetooth, allowing users to control and monitor their therapy sessions. It offers customized settings for duration and intensity, along with device management features. Designed to support users in their wellness journey, it aims to help with stress, mental clarity, and physical discomfort.

**Highlights:** Bluetooth connectivity to Tuner Pro Mini, Customizable session duration and intensity, Device naming for differentiation, Improved shut-off timer, Tuner OS updates, Bug fixes for multiple devices

**Features:** macOS Compatibility

**In-app purchases:** none


### OptoSense

[App page](https://appshunter.io/ios/app/optosense/id6744061471)

**Features:** Family Sharing

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Animals and nature | $2.99 | one-time |
| Vehicles and machines | $2.99 | one-time |
| Faces, dino, animals and toys | $2.99 | one-time |
| Fantasy and mosters | $2.99 | one-time |
| Interactive feature for images | $5.99 | one-time |
| Next Level OPK | $6.99 | one-time |


## Frequently asked questions

### Is Rezzimax free?

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

### Is OptoSense free?

OptoSense costs $9.99, and also offers in-app purchases.

### Do Rezzimax or OptoSense have ads?

Neither Rezzimax nor OptoSense shows ads.

### Which is updated more often, Rezzimax or OptoSense?

Rezzimax ships an update every 2 months, and OptoSense every 5 days. Most recently, Rezzimax was updated on June 5, 2026 and OptoSense on September 23, 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.*