# Otus Plus vs AbleFit

The clearest difference is review sentiment: Otus Plus at 40% against AbleFit's 0%. Otus Plus also leads on update cadence (every 3 weeks vs every 2 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Otus Plus ships an update every 3 weeks, AbleFit every 2 months. The most recent releases landed on October 5, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Otus Plus | AbleFit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/otus-plus/id1544386595/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | **39.7% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 342 MB | 279 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EDENLUX Corp.](https://appshunter.io/developer/1443712682) | [ADD ABLE Co., Ltd](https://appshunter.io/developer/1562804493) |

## What reviewers say

### Otus Plus

[App page](https://appshunter.io/ios/app/otus-plus/id1544386595)

This application provides sound effects for various uses. It is a tool for accessing audio elements for creative projects or general purposes.

**Highlights:** Sound effects library, Audio access, Creative project tool

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

**In-app purchases:** none


### AbleFit

[App page](https://appshunter.io/ios/app/ablefit/id6448405889)

This app connects to a dedicated device via Bluetooth to measure and train breathing. It offers respiratory training functions for users to monitor their inhalation and exhalation pressure. Please note this is for reference only and not a medical application.

**Highlights:** Connects to AbleFit device via Bluetooth, Measures inhalation and exhalation pressure, Provides respiratory training, Displays training data for reference

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Otus Plus free?

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

### Is AbleFit free?

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

### Do Otus Plus or AbleFit have ads?

Neither Otus Plus nor AbleFit shows ads.

### Which is updated more often, Otus Plus or AbleFit?

Otus Plus ships an update every 3 weeks, and AbleFit every 2 months. Most recently, Otus Plus was updated on October 5, 2026 and AbleFit on September 25, 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.*