BULO vs REPACE
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BULO
This app guides users through breathing exercises to improve lung health. It offers measurement and training features to help users understand and enhance their respiratory function.
- Breathing exercise guidance
- Lung measurement
- Respiratory training
- Health tracking
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Smart Breathing Training Assistant! Measure & Exercise for your lungs
REPACE
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REPACE can be your “Personal Workout Coach” Stop working out by running your longest and fastest miles. REPACE, your Personal Workout Coach, will guide you with a personalized workout program that takes into account your endurance and health levels by measuring your biometric data. You will experience a dramatic change in your physical performance with REPACE on your side. We integrate with the health app (HealthKit) to read and track your heart rate data and show them in a beautiful way (Heart rate functions in the app can be imported in conjunction with Apple Watch.)
Screenshots
Verdict
BULO and REPACE are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on July 3, 2026 and September 9, 2026 respectively.
| Parameter | BULO | REPACE |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (5 ratings) — better | — |
| Positive reviews | 42.9% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod, Apple Watch — better |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 55 MB | 92 MB |
| Age rating | 4+ | 4+ |
| Developer | BREATHINGS Co., Ltd. | OBELAB |
In-app purchases
BULO
No in-app purchases
REPACE
No in-app purchases
