OPUMP vs brid.zzz
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OPUMP
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.
- Test inspiratory and expiratory vital capacity
- Various breathing training methods
- Analysis of historical breathing records
- Breathing training game
- Breathing training course
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As the first FDA-approved breathing trainer, OPUMP finally meets you. Used for respiratory muscle training, OPUMP is the first intelligent breathing trainer that can be used independently and connected to OPUMP App to test inspiratory capacity, have breathing training, learn different breathing methods, and track the progress. OPUMP Breathing Trainer Features: - Test inspiratory and expiratory vital capacity; - Various breathing training methods; - Analysis of historical breathing records; - Added: Breathing training game, breathing training course. Disclaimer: OPUMP is not a medical device and should not be used to diagnose or treat any medical condition. The data reflected in the product is for reference and used for APP content only. Please consult a doctor if you need any medical advice. (PS. OPUMP has completed the FDA registration in the United States and obtained the medical device certification in China.)
brid.zzz
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brid.zzz is a mental health management solution that helps to nurture my mind. By using it consistently three times a day, you can create your own mental routines. Real-time measurements of brainwaves and synchronized soundtracks help restore peace of mind amidst daily stress, tension, anxiety, and insomnia. [Mental Routine] Utilize brainwave and breath control sounds suited for moments in daily life when you may feel tense, anxious, stressed, or unable to sleep, maintaining optimal mental well-being. [Focus Routine] Experience the joy of immersion with specially designed binaural beat soundtracks by brid.zzz. [Sleep Tracker] Real-time brainwave monitoring continues not only during the day but also throughout the night. brid.zzz provides special sleep care sounds tailored to your state, improving sleep quality. Analyzing measured brainwaves, the sound automatically stops when you fall asleep, guiding you into deeper sleep. It detects sleep stages, positions, and tossing and turning, revealing even unknown sleep habits. [Personalized Solutions] Through the analysis of brainwave and lifestyle data, it offers tailored mental solutions optimized for your daily life and state. *The brid.zzz app is available for use after registering brid.zzz by LG Labs product. *brid.zzz is not a medical device, and the product's effectiveness may vary depending on the individual.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | OPUMP | brid.zzz |
|---|---|---|
| Price | Free | Free |
| Rating | 1.3 (4 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 11.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 574 MB | 78 MB |
| Age rating | 12+ | 4+ |
| Developer | Light&Move Tech Co., Ltd | SLEEPWAVE INC. |
In-app purchases
OPUMP
No in-app purchases
brid.zzz
No in-app purchases









