Comparison

Spiromagic vs TrackToKnow

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Spiromagic

Features
Read full description

Spiromagic is an innovative personal mobile app that helps you monitors your lungs. Spiromagic works seamlessly with our wireless spirometer that is small enough to put in your pocket. Spiromagic is for people who want to keep informed about the condition of their lungs, whether it be people with COPD, asthma or just people who want to utilize the latest in home fitness monitoring. Training and excercise can have a positive effect on your lungs, and now with Spiromagic the effects on the lung function can be measured and compared with historical data. Spiromagic records data over time and the user is able proactively respond to changes in their health conditions. Visit www.spiromagic.dk for more information about our products ◇◇◇◇ Features ◇◇◇◇ - Perform a full-blown spirometry tests at home - Input your personal profile and see how you compare to an healthy individual matching your age, height and sex. (80-120% is within normal) - View historical graphs for FEV1, PEF, FEV6, estimated lung age and expected lung function percentage. - View complete exhalation curves. - Upload & Share information to Health (HealthKit) ◇◇◇◇ Terminology ◇◇◇◇ - COPD: Chronic Obstructive Pulmonary Disease. - FEV1 = Forced Expiratory Volume in the first second. - FEV6 = Forced Expiratory Volume in six seconds. - PEF = Peak Expiratory Flow. NOTE: The Spiromagic spirometer is a Medical Device having CE Class IIa certification.

About

TrackToKnow

Features
Read full description

TrackToKnow is a health and habit journal you fill in with two taps from your watch. The reminder arrives on its own, you answer right in the notification and move on. No hunting for the app, no long forms. YOUR DATA, YOUR FILES • Entries are stored as plain text files in a folder you choose, for example on iCloud Drive. • No account, no third party cloud, no analytics. • Open, back up or analyze your files any time, or feed them to any AI and ask about your own patterns. YOUR OWN QUESTIONS • Track exactly what you need. Scales, yes and no, option picks and numbers. • Three levels of logging. One tap, a quick check or a detailed entry. • Multiple profiles for different areas, for example eyes, migraines or digestion. APPLE WATCH FIRST • Log straight from the notification without opening the app. • Dictate a note from your wrist. • Widgets on iPhone and on the watch. CONTEXT FROM APPLE HEALTH • Heart rate, sleep, breathing and more attach to your entry automatically. • The app only reads from Health, it never writes to it. TRENDS AND A REPORT FOR YOUR DOCTOR • Trends across weeks and months, period comparisons. • A PDF report you can put on your doctor's desk. TrackToKnow Pro unlocks profiles, full history, export, health metrics and backups. The base app is free with no time limit. Subscribe monthly or yearly, or make a single purchase that lasts forever. The app provides no medical advice or diagnoses. Terms of Use (Apple standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: https://fennixx.github.io/tracktoknow-legal/

Screenshots

Spiromagic4 screens
TrackToKnow4 screens

Verdict

The call

The clearest difference is in-app purchases: Spiromagic at none against TrackToKnow's 3. Spiromagic also leads on iOS requirement (10.3 vs 17.0). TrackToKnow's advantage is update cadence (every 2 weeks vs every 2 months). On price, ads and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. TrackToKnow sells 3 in-app purchases, starting at $4.99 per month. Spiromagic asks for nothing beyond the download.

UpkeepUpdate frequency

Spiromagic ships an update every 2 months, TrackToKnow every 2 weeks. The most recent releases landed on October 26, 2026 and October 23, 2026 respectively.

Scorecard3 real differences Ā· 3 level
Spiromagic versus TrackToKnow: the parameters behind the verdict, then further details
ParameterSpiromagicTrackToKnow
PriceFreeFree
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone, Apple Watch
Requires iOS10.3 — better17.0
Further details — not scored
Size168 MB18 MB
Age rating17+4+
DeveloperSpiromagic ApsRichard Hrban

In-app purchases

None

Spiromagic

No in-app purchases

3 purchases

TrackToKnow

Subscriptions2
  • TrackToKnow Pro Monthly$4.991 Month
  • TrackToKnow Pro Yearly7 Days trial$29.991 Year
One-time1
  • TrackToKnow Pro Lifetime$59.99

Questions

Is Spiromagic free?
Spiromagic is free to download, with no in-app purchases.
Is TrackToKnow free?
TrackToKnow is free to download, with in-app purchases available.
Do Spiromagic or TrackToKnow have ads?
Neither Spiromagic nor TrackToKnow shows ads.
Which is updated more often, Spiromagic or TrackToKnow?
Spiromagic ships an update every 2 months, and TrackToKnow every 2 weeks. Most recently, Spiromagic was updated on October 26, 2026 and TrackToKnow on October 23, 2026.

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