RitmoTime Stroke Monitor is an advanced on the water training tool that any rower or paddler can use to get real-time stroke rate, speed and distance feedback during water workouts. Every stroke of every workout is recorded and saved for later review. RitmoTime harnesses the impressive computing power and portability of the iPhone to become the ultimate in water sport training devices.

RitmoTime Stroke Monitor Free will function just like the paid version except the app must be restarted after 50 strokes.


With every stroke you take RitmoTime will display and record:
- Stroke Rate
- Heart Rate*
- Speed*
- Time (Total & Pieces)
- Distance (Total & Pieces)*
- Stroke Count (Total and Pieces)
- Average Speed*
- GPS Location (recorded only)*

In addition, RitmoTime will map your entire workout and display recorded data for each and every stroke for a lifetimes worth of workouts!

* Speed, distance and mapping only on GPS enabled devices (iPhone or iPad/iPod touch with GPS receiver attachment purchased separately). Heart rate feedback is available with the ANT+ Fisica Sensor Key by Wahoo Fitness or with compatible Bluetooth (BTLE) heart rate monitors.

Choose from three main display types. Choose the two easy to read and simplified Classic displays or select the customizable Espresso view. The Espresso view contains two touch select readouts each with a choice of twelve quantities to display. Just tap on the touch field to choose from boat run, heart rate, stroke count, distance, heading, compass heading, remaining strokes, remaining time, remaining distance, total strokes, total time and total distance. The “remaining” and “total” quantities are real-time estimates shown during pieces and are based on a preselected piece time, duration or distance.

RitmoTime uses all three accelerometers to measure stroke rate in any orientation relative to the boat allowing for maximum flexibility when mounting.

The exclusive Auto Piece Timer feature is much more than just an “auto start” capability – it automatically starts and stops a separate piece and rest timer based on preset user stroke rates. This means hands free timing of pieces whether starting from rest or “on the fly”. No more tedious programming workout work/rest intervals. Instead of following a scripted workout you programmed at the dock, the Auto Piece Timer follows your rowing and starts the piece/rest timer when you begin and end your piece and rest intervals.

All workout data is saved, subdivided into pieces and can be viewed on your device, in table or map format, and emailed for sharing.

The ultimate workout and race log and recorder! Because RitmoTime works in any orientation it does not need to be mounted in any particular way, it just needs to be secure from sliding or rocking. Protect it with a waterproof case, wrap it in a sweatshirt or towel and then stuff it in front of the foot stretchers. No need to interact with RitmoTime during your workout or before your race as the Auto Piece Timer will organize your data into pieces and rest for easy viewing on the device immediately after your workout.

Do you have an iPod touch or iPad without GPS? GPS can be added with a separate hardware attachment. This is a great solution for those who don’t have an iPhone. Your total cost, iPad/iPod touch + waterproof case + RitmoTime + GPS attachment, is still less expensive than almost all traditional dedicated stroke monitors that have speed and distance capability. GPS attachments from Dual and Bad-Elf have been tested by Full Compression LLC and work great.

** You must use a waterproof case for this application. **

Waterproof case and mounting ideas can be found at our website

What’s New

Version 3.2

- Fix for Bluetooth heart rate monitors

- Double tap Reset button option to prevent accidental resets

- Full screen for iPad and all iPhone aspect ratios

- Compatibility for iOS 9 through iOS 13

Ratings and Reviews

4.3 out of 5
4 Ratings

4 Ratings

bpkts142 ,

Great way to track your meters without thinking

The App is intuitive and sensitive and a great companion for all those long days

Tuudhhhdhdtgnhhb. Gyhjcfghgf ,

Great App / Bad Battery Life

The app is great as a speed coach when rowing a single scull, but I can only use it for short periods of time. 30 minutes of use on water uses about 25% of my phone battery. When I play music from my phone while running the app, battery life is even worse.

acjourney ,

Terrific rowing/paddling app

I downloaded this app to use as a stroke rate monitor for dragon boat practices to help us achieve the precise ratings we wanted. While this app was originally meant to work for the long smooth rowing stroke, it still worked for the shorter, choppy paddling stroke of a dragon boat. Even better, I contacted the developers and worked with them by providing dragon boat acceleration data which has been incorporated into this new version (1.1). The developers were very responsive and took suggestions seriously. The new dragon boat mode works flawlessly for our practices. Furthermore, the app computes instantaneous split times, distance travelled, and implements piece tracking/timing. I especially love the fact that you can export all this data and analyze it later in whatever way you wish. It's priced more reasonably than some of the other rowing apps out there, and does everything I need it to do. 5 stars!


Full Compression LLC
40.3 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
In-App Purchases
  1. Unlimited On-Water
  2. Workout Recording


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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