Comparison

Interval Walking Timer vs AQI & Pollen

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

Head to head
About

Interval Walking Timer

This app provides a simple timer for interval fast walking routines, automatically switching between slow and fast walking every 3 minutes. It offers real-time tracking of heart rate, distance, and time, with Apple Watch vibration notifications for mode changes. A summary screen displays post-workout metrics, and users can control music playback directly from the app.

Highlights
  • Interval timer for fast walking
  • Automatic mode switching (slow/fast walk)
  • Apple Watch vibration notifications
  • Real-time heart rate, distance, and time display
  • Post-workout summary with key metrics
  • Music and podcast playback control
Read full description

Simple timer for interval fast walking. It switches between slow walking mode and fast walking mode every 3 minutes. The Apple Watch vibrates to notify you when it is time to switch modes. Heart rate, total time, and total distance are displayed in real time, so you can monitor your current heart rate and adjust your walking speed to meet your target heart rate. Features: ・Simple timer for interval fast walking. ・Switch between slow walking mode and fast walking mode every 3 minutes. ・When the mode is switched, Apple Watch vibrates to notify you. ・Displays heart rate, total distance, and total time in real time. ・When finished, a summary screen is displayed, showing total time, total distance, total energy, average heart rate, and maximum heart rate. ・The Pause button can be used to pause the program. ・When starting, you can select whether to start in slow walk mode or fast walk mode. ・Slide the screen to the right to control music and podcasts.

About

AQI & Pollen

Features
Read full description

BreathShield warns you BEFORE you get sick. Wake up every morning to a personalized health risk score that combines your overnight Apple Watch biometrics with real-time air quality and pollen data. All processing happens entirely on your device. HOW IT WORKS - Automatically reads your overnight vitals: respiratory rate, SpO2, HRV, wrist temperature, and sleep stages - Fetches hyperlocal PM2.5, ozone, pollen, and UV index from nearby monitoring stations - Calculates your personal risk score (0-100) using a weighted bio-environmental algorithm - Sends smart morning alerts when your risk is elevated 100% PRIVACY - ZERO COMPROMISE - All data processed on-device. Nothing uploaded. - No account, no login, no surveys. Works instantly. - No ads, no tracking, no data selling. Ever. - Your health data never leaves your iPhone. FEATURES - Real-time risk gauge with biometric and environmental fusion - Personalized 90-day adaptive baseline that learns your body - 14-day trend tracking with anomaly detection - Home Screen and Lock Screen widgets - Siri shortcuts: "Hey Siri, what's my risk score?" - Background auto-refresh every morning at 6:30 AM - Smart push notifications for critical air quality events BUILT FOR PEOPLE WHO CARE ABOUT BREATHING Whether you manage asthma, seasonal allergies, COPD, or simply want to protect your lungs from wildfire smoke and urban pollution, BreathShield gives you the data to act before symptoms hit. BREATHSHIELD PRO - Advanced bio-environmental correlation analysis - Extended 14-day trends with personal insights - Unlimited push alerts and critical warnings - Lock Screen widget for at-a-glance safety DATA SOURCES - OpenAQ: Real-time PM2.5, PM10, O3, NO2 from 50,000+ stations worldwide - Google Pollen API: Tree, grass, and weed pollen forecasts - Apple WeatherKit: UV index, humidity, wind speed - Apple HealthKit: Overnight biometrics from Apple Watch Designed for Apple Watch Series 6 and later. Works without Apple Watch using environmental data only. DISCLAIMER: BreathShield is an informational wellness tool only and does not provide medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider for medical decisions. This application is not a medical device. Terms and Privacy: https://www.gamersimulation.com/privacy-policy

Screenshots

AQI & Pollen4 screens

Verdict

The call

The clearest difference is in-app purchases: Interval Walking Timer at none against AQI & Pollen's 3. Interval Walking Timer also leads on device support (3 vs 1) and iOS requirement (13.0 vs 18.0). AQI & Pollen's advantage is update cadence (every 5 weeks vs every 14 months). On price and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. AQI & Pollen sells 3 in-app purchases, starting at $2.99 per month. Interval Walking Timer asks for nothing beyond the download.

UpkeepUpdate frequency

Interval Walking Timer ships an update every 14 months, AQI & Pollen every 5 weeks. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
Interval Walking Timer versus AQI & Pollen: the parameters behind the verdict, then further details
ParameterInterval Walking TimerAQI & Pollen
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 14 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPod, Apple Watch — betteriPhone
Requires iOS13.0 — better18.0
Further details — not scored
Size1 MB3 MB
Age rating4+4+
DeveloperTakahiro NakagawaMustafa Kandemir

In-app purchases

None

Interval Walking Timer

No in-app purchases

3 purchases

AQI & Pollen

Subscriptions2
  • Pro Monthly3 Days trial$2.991 Month
  • Pro Yearly3 Days trial$29.991 Year
One-time1
  • Pro Lifetime$79.99

Questions

Is Interval Walking Timer free?
Interval Walking Timer is free to download, with no in-app purchases.
Is AQI & Pollen free?
AQI & Pollen is free to download, with in-app purchases available.
Do Interval Walking Timer or AQI & Pollen have ads?
Neither Interval Walking Timer nor AQI & Pollen shows ads.
Which is updated more often, Interval Walking Timer or AQI & Pollen?
Interval Walking Timer ships an update every 14 months, and AQI & Pollen every 5 weeks. Most recently, Interval Walking Timer was updated on October 24, 2026 and AQI & Pollen on October 31, 2026.

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