ALDS vs FlowPeak
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ALDS
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The ALDS (Ambulatory Lung Diagnostic System) combines oscillometry, FeNO, and spirometry to enable fast and comprehensive respiratory assessment. Its cloud-based algorithms evaluate measurement data alongside patient history to support the physiological interpretation of obstructive, restrictive, and inflammatory patterns. Designed for use in primary and outpatient care, the system enables efficient, non-invasive assessments within minutes and supports clinicians in the evaluation and management of respiratory conditions.
FlowPeak
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FlowPeak is a breathing app that aims to help you focus on your quality of breathing. It's great for anyone from vocalists to meditation gurus! We analyze your breath sounds and tell you a little bit about the frequencies we hear in your breathing!
Screenshots
Verdict
The clearest difference is update cadence: FlowPeak at every 4 weeks against ALDS's every 6 months. ALDS's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, 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.
ALDS ships an update every 6 months, FlowPeak every 4 weeks. The most recent releases landed on September 17, 2026 and February 25, 2026 respectively.
| Parameter | ALDS | FlowPeak |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 24 MB | 26 MB |
| Age rating | 17+ | 4+ |
| Developer | LOTHAR MEDTEC GmbH | Immix Concepts, LLC. |
In-app purchases
ALDS
No in-app purchases
FlowPeak
No in-app purchases
