Strengthiness Interval Timer vs Sync Stairs
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Strengthiness Interval Timer
This interval timer offers a straightforward and efficient way to manage your workouts. It supports multiple named sets, unlimited intervals, and provides audio and vibration cues. Ideal for various interval training protocols, it simplifies setup and tracking.
- Super easy setup
- Multiple named sets
- Unlimited intervals
- Countdown and count-up timers
- Beep and vibration alerts
- Stopwatch with lap counter
- Set counter
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Strengthiness Interval Timer is the easiest to use interval timer on the App Store. • Super easy setup • Multiple named sets • Unlimited intervals • Count rounds down to 0 or up until you decide to stop • Countdown timer gives you up to 10 seconds to prepare • Beeps and vibrates (on devices that support vibration) • Stopwatch accurate to hundredths of a second • Handy set counter for when you're not doing timed efforts You don't need fancy graphics. What you need is a simple timer that just works. Strengthiness Interval Timer is that timer; a simple app that does what it needs to and is easy to use. Strengthiness Interval Timer is perfect for all sorts of timed High Intensity Interval Training, whether it's the Tabata protocol, a CrossFit WOD, Sprint 8, Viking Warrior Conditioning, or any other type of interval training you may be doing. It comes with four built in examples and you can add as many different set lists as you want. A countdown timer gives you time to setup if you're working out alone. Loud beeps make it easy to use in a group setting, and different beep patterns differentiate the countdown, interval completion, and when the timer is finished. There's no fiddling with awkward time pickers or complicated setup screens, just type in the times you want. Ever forget that 180 seconds is 3 minutes? Stop converting in your head. Just enter the number of seconds you need and Strengthiness Interval Timer will do the math for you. Forgot your GymBoss® Timer? Strengthiness Interval Timer is the perfect stand in. Strengthiness Interval Timer includes a stopwatch function with an unlimited lap counter. Perfect for coaches or training partners working together. Doing sets that aren't timed? It can be easy to forget how many sets you've done while you're recovering, especially if you're counting breaths for breathing sets. Don't worry, the Set Counter has you covered. Just a single tap and Strengthiness Interval Timer will remember for you. Download it today and enjoy the simplicity and utility that is Strengthiness Interval Timer!
Sync Stairs
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Transform your STEPR workouts with Sync Stairs - the fitness companion built for stair climbing. Connect to your machine over Bluetooth and unlock live metrics, comprehensive analytics, and personal best achievements, on iPhone and on Apple Watch. REAL-TIME CLIMB TRACKING • Live metrics including floors, steps, steps per minute, speed level, elevation gain, calories, and heart rate • Metric tiles you can drag to reorder, with your layout remembered • Automatic personal best detection and celebration • Pause and resume, with a confirmation before a climb ends COMPREHENSIVE ANALYTICS • Climb history grouped by month, with medal badges on records • Best, total, and average for every metric, filtered by week, month, quarter, year, or all time • Streak tracking for consecutive days climbed • Charts for climbs over time, steps over time, any metric's trend with a trend line, and heart rate against step rate • Per-climb detail with full-resolution step, speed, and heart rate charts APPLE WATCH SUPPORT • Record a climb entirely from your wrist - the watch connects to the machine itself • The same metric grid as the phone, sized for the watch • Keeps the heart rate sensor on and the workout running once your wrist drops • Saves straight to Health, so a watch climb shows up on your iPhone • Works with your iPhone nearby or left in the locker HEALTH & FITNESS INTEGRATION • Every climb saves as a Stair Climbing workout in Health • Floors and steps written at full resolution, second by second • Reads heart rate, energy, and effort score back from Health for your climb • Closes your activity rings like any other workout • Health is the only store - no account, no cloud, nothing to sign into SMART FEATURES • Lock Screen and Dynamic Island Live Activity with your climb in progress • A 7x7 heat map widget of the last seven weeks • A Control Center button to start a climb • Start a climb with Siri, Shortcuts, or Spotlight • Share a climb summary as an image • Metric or Imperial units, defaulting to your region DESIGNED FOR STEPR • Bluetooth connection to your STEPR • Scans for your machine and connects when you start a climb - nothing to pair first COMPATIBILITY Sync Stairs has only been tested on the 2026 STEPR Pro Classic. Other STEPR models, and other stair climbers may work but are untested. If yours does not connect properly, get in touch through the feedback link in Settings and it can be looked at. SYNC STAIRS PRO The app is free to use, and every climb you record is yours to keep. Sync Stairs Pro is an optional subscription that unlocks unlimited workouts, the Apple Watch app and the full Insights screen - all charts, all statistics, and streaks. Whether you climb twice a week or every morning, Sync Stairs gives you the tools to track progress, chase records, and stay motivated. Start tracking your climbing today. Privacy Policy: https://www.rspoon3.com/sync-stairs/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula
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Verdict
The clearest difference is price: Sync Stairs at Free against Strengthiness Interval Timer's $0.99. Strengthiness Interval Timer's advantage is in-app purchases (none vs 2) and chart position (#174 vs unranked). On ads and device support 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
Sync Stairs is free to download; Strengthiness Interval Timer costs $0.99 up front. Sync Stairs sells 2 in-app purchases, starting at $4.99 per 7 days. Strengthiness Interval Timer asks for nothing beyond the download.
| Parameter | Strengthiness Interval Timer | Sync Stairs |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 months | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Best chart rank | #174 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, Apple Watch |
| Requires iOS | 13 — better | 26.0 |
| Further details — not scored | ||
| Size | 1 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | Strengthiness, LLC | Richard Witherspoon |
In-app purchases
Strengthiness Interval Timer
No in-app purchases
Sync Stairs
- Weekly Subscription$4.997 Days
- Annual Subscription$29.991 Year
Questions
Is Strengthiness Interval Timer free?
Is Sync Stairs free?
Do Strengthiness Interval Timer or Sync Stairs have ads?
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