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.
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.
- 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
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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.
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.
- 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
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
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.
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.
| Parameter | HIIToMeter high intensity interval training meter | SunUp Reminder |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (7 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 7 — better |
| Update frequency | Every 5 days | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod, Apple Watch — better | iPhone |
| Requires iOS | 10.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 26 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Shrujan Hanumantharayappa | Jan van Rensburg |
Customer experience
HIIToMeter high intensity interval training meter
SunUp Reminder
In-app purchases
HIIToMeter high intensity interval training meter
No in-app purchases
SunUp Reminder
No in-app purchases
Questions
Is HIIToMeter high intensity interval training meter free?
Is SunUp Reminder free?
Which has better reviews, HIIToMeter high intensity interval training meter or SunUp Reminder?
Do HIIToMeter high intensity interval training meter or SunUp Reminder have ads?
Which is updated more often, HIIToMeter high intensity interval training meter or SunUp Reminder?
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