TrainerDay 4+

Indoor Cycling Training


Designed for iPad

    • 4.7 • 316 Ratings
    • Free
    • Offers In-App Purchases


The TrainerDay site has over 20,000 workouts that you can distribute to many platforms. We also have training plans. Our app contains 20-workouts without needing a subscription. Upgrade for full access to unlimited workouts and training plans.

Verified Trainers and devices (Bluetooth only)
- All HR monitors that follow the standard
- Standard Power Meters
- Wahoo Core, Kickr and Snap
- Tacx Neo, Flux, Flow, Vortext and Bushido
- Eilte Direto, Suito
- Saris H2 + H3
- Most other new model trainers should work


It's fast, it's flexible

1) Start your training session in 5-10 seconds (after an initial quick setup)
2) Easily change workouts, intervals, or intensities dynamically during your training session
3) Fast access to ERG and Resistance or Slope training modes

Record your heart rate, see some stats on the watch and start and stop application. When connected to Apple watch your workouts will be saved to Apple Health.

What’s New

Version 4.3.0

- Fixed HR mode
- Fixed saving activity without internet
- Fixed date in activity
- Fixed UI issues
- Fixed Today tab in landscape
- Removed Watts turning red
- Remove BPM increase amount setting
- Other small fixes

Ratings and Reviews

4.7 out of 5
316 Ratings

316 Ratings

Woodcock Johnson ,

Everything you need, nothing you don’t

I’m not a fan of useless hyperbole, but I think this app is everything any serious cyclist needs without any of the flashy distractions of other platforms.

As a long time Zwift user, I was concerned that this platform might prove too stale for prolonged use over the course of a full training plan. But since I’ve started using this app exclusively, I’ve noted my attitude towards training has changed. I used to justify spending money for Zwift for the racing and the virtual engagement. But realistically I would either blow a training plan trying to race up every virtual hill or get screen fatigue.

TrainerDay sits right in between the big platforms’ pricey subscription services with all the variety of a huge training library you could want and none of the diversions you might experience with another platform. Long base miles? Throw this on your iPad or smartphone and start a season of The Borgias. Intervals? Pick your poison from thousands of workouts and get started. They’re plenty engaging without slowly feeling your eyeballs turn to jelly.

Developer Response ,

Wow TriGuy, what a great review. Really appreciate it. If you ever feel something is missing, just contact us via our website We also have a feature requests page on the site as we continue to add even more of "everything you need." We have the goal to avoid complexity and keep it low cost forever.

Totalcyclist ,


As an owner of training centers for endurance athletes I’ve struggled over the past 20 years finding a simple, user friendly app that can work with our clients virtually and in studio. Ding ding! We have a winner. Alex and his team are very responsive to requests, updates and support. Keep up the great work.

Developer Response ,

Thanks so much, glad to be of service

Dave CPA ,

Can’t open the app

I used this app a few times and now all i get when i open it is a white screen. I’ve deleted the app numerous times. I’ve erased the data and logged back in. I don’t know how to fix it, so I’m giving up. Buyer beware!!

Developer Response ,

Oh, sorry for the slow response. I see you gave us 5-stars so hopefully a later version of our app fixed your issues. Sorry again, I don't get notified by these reviews.

App Privacy

The developer, ZUZ LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Health & Fitness
  • Contact Info
  • Identifiers
  • Usage Data

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Location
  • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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