# OPUMP vs brid.zzz

The clearest difference is iOS requirement: OPUMP at 11.0 against brid.zzz's 13.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

OPUMP ships an update every 2 months, brid.zzz every 3 weeks. The most recent releases landed on October 7, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | OPUMP | brid.zzz |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.3 (4 ratings)](https://appshunter.io/ios/app/opump/id1594124405/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 574 MB | 78 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Light&Move Tech Co., Ltd](https://appshunter.io/developer/1567853593) | [SLEEPWAVE INC.](https://appshunter.io/developer/1635861891) |

## What reviewers say

### OPUMP

[App page](https://appshunter.io/ios/app/opump/id1594124405)

This intelligent breathing trainer helps you test inspiratory capacity, engage in guided breathing exercises, and track your progress. It offers various training methods, historical data analysis, and even a breathing training game and course. It is not a medical device but provides reference data for app content.

**Highlights:** Test inspiratory and expiratory vital capacity, Various breathing training methods, Analysis of historical breathing records, Breathing training game, Breathing training course

**Features:** macOS Compatibility

**In-app purchases:** none


### brid.zzz

[App page](https://appshunter.io/ios/app/bridzzz/id6449228010)

**In-app purchases:** none


## Frequently asked questions

### Is OPUMP free?

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

### Is brid.zzz free?

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

### Do OPUMP or brid.zzz have ads?

Neither OPUMP nor brid.zzz shows ads.

### Which is updated more often, OPUMP or brid.zzz?

OPUMP ships an update every 2 months, and brid.zzz every 3 weeks. Most recently, OPUMP was updated on October 7, 2026 and brid.zzz on October 14, 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.*