iPhone Screenshots


The 4iiii app is a valuable tool to get the most out of the features of your 4iiii products and achieve your fitness goals. Through the app, you can connect to your 4iiii PRECISION Powermeters (PRECISION and Podiiiium models) and your Viiiiva heart rate monitor to both configure and update them. You can easily record workout data to be later uploaded to your favourite training software. The 4iiii app will also allow you to unlock new features to make the most out of your devices!

Features include:

4iiii app
Supported devices: PRECISION and Podiiiium Powermeters, Viiiiva heart rate monitors
Record workout data (heart rate, power, cadence, pace, speed, distance, time, laps, calories)
Manage stored files
Access the Finder Feature map

4iiii PRECISION Powermeters (PRECISION and Podiiiium)
Unlock new features to future-proof your devices
Personalize your device name
Pair and unpair dual powermeters
Perform zero offset
Use the Finder Feature to locate your powermeter
Easy over-the-air firmware updates

Personalize your device name
Pair with ANT+ devices to enable ANT+ to Bluetooth passthrough
Record data of paired devices (powermeter, cadence/ speed sensor, etc.)
Store up to 65hr of workout data
Download stored .fit files from your Viiiiva to the 4iiii app

Note: Available for iOS only (supports only iOS version 11.0 or higher)

What’s New

Version 2.1.0

- Login issues fixed
- Fit file corruption issues fixed
- Retrieves FIT files from previous version
- Search Otter Europe
- Minor GUI revision
- Minor bug fixes

Known Issue:
- Reset Password doesn't work

Ratings and Reviews

1.6 out of 5
16 Ratings

16 Ratings

Ol Chappy ,

2.0 update locked me out

Since the recent update, the app doesn’t let me log in using the same credentials that work on the 4iiii site. That wouldn’t be too bad except that it won’t let me do anything else with the power meter unless I log in. So this update broke the app completely, for me. Extremely disappointed.

Kewl_MF ,

2.1 Update didn’t fix anything

Today’s craplication update was a waste of time. Same issues still exist and only had to wait a month to be disappointed again. Maybe they can make something work like it did before after another month.

Hennister ,


This update has essentially bricked the power meter. It would not let me login using my credentials. It made me rest them. Then it would not accept the new credentials. Now the power meter is not recognized by anything ant+ or Bluetooth. So far customer service has been responsive but not successful in helping.


4iiii Innovations Inc.
46.4 MB
Health & Fitness

Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
This app may use your location even when it isn't open, which can decrease battery life.
© 4iiii Innovations Inc.


  • Family Sharing

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

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