Comparison

Tacho vs STACK DAYS Elite Training

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

Head to head
About

Tacho

Track your cycling workouts with this app, which functions as a bike computer on your Apple Watch and iPhone. It records key metrics like speed, heart rate, and elevation, syncing data to Apple Health.

Highlights
  • Bike computer functionality
  • Track speed, heart rate, elevation
  • Syncs with Apple Health
  • Auto-pause feature
  • Barometric altimeter for accuracy
  • Real-time weather data
Features
Read full description

Tacho is a bike computer for the Apple Watch and iPhone. With the Tacho Watch app, you can track your bike workouts and save them to the Apple Health app on your iPhone. You can use the Tacho Watch app with or without an iPhone. Start your tracking on the Apple Watch. With the Tacho iPhone app, you can then see key metrics like speed, heart rate, elevation, incline, wind speed and direction, and air temperature. On the Apple Watch, you'll also see average and maximum speed, pulse, and ascent and descent. With the auto-pause function, only the time and distance you are actually moving is counted. The barometric altimeter ensures accurate altitude measurement. It automatically calibrates itself based on the GPS signal as you move. Weather data is updated every 5 to 15 minutes depending on your speed and location. The following data is stored in the Apple Health app on your iPhone: - ride time - distance - route - altitude (ascent/descent) - speed - pulse - calories burned - air temperature - air humidity - weather condition - events (pause start/end, movement start/end) In the Settings app on your iPhone, you can configure the Tacho app to your liking. You can choose between altimetry via GPS or barometer, configure units of measurement, customize the appearance and disable the auto-pause functionality. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

STACK DAYS Elite Training

Features
Read full description

STACK DAYS Pro Training is built on a simple philosophy: dominate your moments one day at a time. Rooted in consistency and designed for the daily grind, this app is your partner in achieving strength, resilience, and longevity, whether you are an athlete or simply want to train like one. Powered by Coach Chris, a seasoned Southern California Strength and Conditioning Coach, STACK DAYS Pro Training offers a structured and adaptable approach to fitness. The program focuses on consistent daily actions tailored to your specific needs, helping you achieve your goals through simplicity, recovery, and intentional progress. Key Features: Personalized Training Plans: Workouts designed for your sport, fitness level, or lifestyle. Athletic Performance: Train like an athlete with programs that build strength, mobility, and endurance. Recovery and Longevity: Incorporate essential recovery techniques to support your body for the long haul. Daily Accountability: Stay on track with consistent programming and habit-building tools. In-App Communication: Engage with your coach for support, guidance, and motivation. STACK DAYS Pro Training is more than just an app; it is a movement focused on helping you stack wins every day. Whether you are preparing for game day, building a healthier lifestyle, or striving to reach your peak performance, this app is designed to simplify your journey and maximize your results. Join the STACK DAYS community and start dominating your moments today. * App access requires paid coaching plan Terms of use: https://kahunas.io/terms-conditions Privacy policy: https://kahunas.io/privacy

Screenshots

Tacho4 screens
STACK DAYS Elite Training3 screens

Verdict

The call

The clearest difference is price: STACK DAYS Elite Training at Free against Tacho's $4.99. Tacho's advantage is in-app purchases (none vs 1). On update cadence, ads, device support and iOS requirement 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

STACK DAYS Elite Training is free to download; Tacho costs $4.99 up front. STACK DAYS Elite Training sells 1 in-app purchase, starting at $249.00 per month. Tacho asks for nothing beyond the download.

UpkeepUpdate frequency

Tacho ships an update every 6 weeks, STACK DAYS Elite Training every 2 months. The most recent releases landed on October 2, 2026 and September 20, 2026 respectively.

Scorecard2 real differences · 8 level
Tacho versus STACK DAYS Elite Training: the parameters behind the verdict, then further details
ParameterTachoSTACK DAYS Elite Training
Price$4.99Free — better
Rating3.7 (3 ratings) — better—
Positive reviews73.7% of reviews—
Number of ratings3 — better—
Update frequencyEvery 6 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS15.515.0 — better
Further details — not scored
Size7 MB52 MB
Age rating4+17+
DeveloperFriedemann BartelsMobile Trainer, LLC

In-app purchases

None

Tacho

No in-app purchases

1 purchases

STACK DAYS Elite Training

Subscriptions1
  • STACK PRO$249.001 Month

Questions

Is Tacho free?
Tacho costs $4.99, with no in-app purchases.
Is STACK DAYS Elite Training free?
STACK DAYS Elite Training is free to download, with in-app purchases available.
Do Tacho or STACK DAYS Elite Training have ads?
Neither Tacho nor STACK DAYS Elite Training shows ads.
Which is updated more often, Tacho or STACK DAYS Elite Training?
Tacho ships an update every 6 weeks, and STACK DAYS Elite Training every 2 months. Most recently, Tacho was updated on October 2, 2026 and STACK DAYS Elite Training on September 20, 2026.

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