Comparison

HIIToMeter high intensity interval training meter vs SunUp Reminder

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

Head to head
About

HIIToMeter high intensity interval training meter

This app provides a visual guide for high-intensity interval training, helping users maximize fat burning and metabolism. It offers customizable workout durations and intensities, with Apple Health integration for heart rate data and Apple Watch support for real-time feedback.

Highlights
  • Visual progress tracking for HIIT
  • Customizable workout durations (10, 20, 30 mins)
  • Adjustable intensity levels (low, medium, high)
  • Apple Health integration for heart rate
  • Apple Watch companion app support
  • Haptic feedback for intensity changes
Features
Read full description

Enjoy a visual progress of your High Intensity Interval Training workout with HIIToMeter. Workout in less but intense bursts of time to maximize fat burning and boosted metabolism. Choose between durations of 10 minutes, 20 minutes or 30 minutes workout in low, medium or high intensities to tailor your workout session. HIIToMeter integrates with the Apple Health app to record heart-rate data. Your watch buzzes when it is time to speed up or slow down your intensity. Your heart rates' visual representation gives you a yellow or orange circles in the center indicating which workout zone you need to target on the HIIToMeter. Make the most out of your High Intensity Interval Training with the HIIToMeter app. SUPPORTS APPLE WATCH and APPLE WATCH NIKE+ Get your perfect workout partner—on your wrist. The HIIToMeter app supports all generations of Apple Watches, with a simple experience designed for High Intensity Interval Training. Swipe right on the main screen to select a goal, activate Advanced mode, or adjust the type of activity before you start off. For optimal user experience this app is recommended to be used alongside its Apple Watch companion app.

About

SunUp Reminder

Automates a key habit recommended by Dr. Andrew Huberman: getting morning sunlight. It sends precise, location-based sunrise reminders to help you establish a healthy circadian rhythm and improve sleep.

Highlights
  • Precise sunrise reminders based on GPS
  • Automatic adjustment for seasonal shifts
  • Offline scheduling for a week
  • Streak tracking for habit building
  • Optional evening reminder
  • Sun radial visualization
Features
Read full description

The #1 habit Dr. Andrew Huberman recommends — automated. If you've listened to the Huberman Lab podcast, you know: getting sunlight in your eyes within the first hour of waking sets your entire day. It spikes cortisol at the right time, sharpens focus, boosts immunity, and programs your body to fall asleep easily that night. The problem? Sunrise shifts by hours through the year. Most people mean to do it — and forget. SunUp fixes that. —— Every day, SunUp calculates the exact sunrise time for your location and sends you a reminder — automatically. No alarm to set. No time to remember. Step outside for 10 minutes and you've completed the habit that anchors your circadian rhythm. Clouds? Go anyway. Huberman's words: "even if through cloud cover" — the signal still reaches your eyes. SET IT ONCE. NEVER THINK ABOUT IT AGAIN. • Precise sunrise reminders based on your GPS location • Automatically adjusts as sunrise shifts through the seasons • Schedules a week of reminders in advance — works offline • Pin to a city if you travel • Optional evening reminder to plan an early night • Sun radial showing where you are in the day • Streak tracking to build the habit —— WHY THIS HABIT MATTERS Prof. Andrew Huberman of Stanford explains: morning light triggers an early-day cortisol spike at the ideal time, preparing the body for deep sleep that night. It also sets your circadian clock — the master timing system controlling sleep, hunger, metabolism, and focus. Miss the morning light and the whole rhythm shifts. Get it consistently and sleep, energy, mood, and focus all improve. SunUp makes sure you never miss it. Download SunUp. Step outside. Start tomorrow. —— Inspired by the Huberman Lab podcast. hubermanlab.com/using-light-for-health/

Screenshots

HIIToMeter high intensity interval training meter2 screens
SunUp Reminder3 screens

Verdict

The call

The clearest difference is update cadence: SunUp Reminder at daily against HIIToMeter high intensity interval training meter's every 5 days. SunUp Reminder also leads on ratings volume (7 vs 1). HIIToMeter high intensity interval training meter's advantage is device support (3 vs 1) and iOS requirement (10.0 vs 26.0). On price, rating, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for HIIToMeter high intensity interval training meter against 5.0 for SunUp Reminder. That said, the two scores are not equally well evidenced: SunUp Reminder has 7 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

HIIToMeter high intensity interval training meter ships an update every 5 days, SunUp Reminder daily. The most recent releases landed on October 1, 2026 and October 9, 2026 respectively.

Scorecard4 real differences · 6 level
HIIToMeter high intensity interval training meter versus SunUp Reminder: the parameters behind the verdict, then further details
ParameterHIIToMeter high intensity interval training meterSunUp Reminder
PriceFreeFree
Rating5.0 (1 ratings)5.0 (7 ratings)
Positive reviews—100.0% of reviews
Number of ratings17 — better
Update frequencyEvery 5 daysDaily — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPod, Apple Watch — betteriPhone
Requires iOS10.0 — better26.0
Further details — not scored
Size26 MB4 MB
Age rating4+4+
DeveloperShrujan HanumantharayappaJan van Rensburg

Customer experience

HIIToMeter high intensity interval training meter

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

SunUp Reminder

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

HIIToMeter high intensity interval training meter

No in-app purchases

None

SunUp Reminder

No in-app purchases

Questions

Is HIIToMeter high intensity interval training meter free?
HIIToMeter high intensity interval training meter is free to download, with no in-app purchases.
Is SunUp Reminder free?
SunUp Reminder is free to download, with no in-app purchases.
Which has better reviews, HIIToMeter high intensity interval training meter or SunUp Reminder?
HIIToMeter high intensity interval training meter and SunUp Reminder are both rated 5.0 out of 5 on the App Store, from 1 and 7 ratings respectively.
Do HIIToMeter high intensity interval training meter or SunUp Reminder have ads?
Neither HIIToMeter high intensity interval training meter nor SunUp Reminder shows ads.
Which is updated more often, HIIToMeter high intensity interval training meter or SunUp Reminder?
HIIToMeter high intensity interval training meter ships an update every 5 days, and SunUp Reminder daily. Most recently, HIIToMeter high intensity interval training meter was updated on October 1, 2026 and SunUp Reminder on October 9, 2026.

Other comparisons