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, Fliiiight Smart Trainer
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

Personalize device name
Trainer configuration changes (manual positioning, wheel circumference, firmware update)
Diagnostic tools
Workout modes (resistance training, Erg training)

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

What’s New

Version 2.4.0

- Fix bug in cadence display when connected to a Fliiiight trainer
- Add support for Sign in with Apple

Ratings and Reviews

1.6 out of 5
39 Ratings

39 Ratings

Sean Molin ,

A total mess.

Ever since the first public beta of iOS 13, this app ceased to discover my power meter. Even after full release, nothing. Fortunately the meter still connects to Zwift and my ELEMNT.

To make matters worse, in trying to troubleshoot the issue, I installed the app on another device and it would not accept my login info. I told it to reset my password, but it never emailed any reset info despite saying it would.

Developer Response ,

We’re working an update around the iOS 13 issues and will release shortly. Thanks for your feedback.

Nickname___Taken ,

Got my Precision power meter running

Version 2.2.2. Mind you, the only use I have for the app is to interface with the power meter on my bike. The app recognized the power meter, displayed battery remaining, and updated the firmware without a hitch. That’s all I’ll be doing with the app.

Shawn591 ,

false advertising

They say you can use this to bridge ant+ to ios but it didn’t say ALL sensors had to be 4iiii or viiiiva whatever this abandoned company is. Could not pair with my $100 wahoo sensors that almost everybody uses. app will tell you its paired successfully but it isn’t. HRM works well if you’re using that all by itself. Anyways will be returning my hrm. Thanks for nothing


4iiii Innovations Inc.
61.4 MB

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



Age Rating
This app may use your location even when it isn't open, which can decrease battery life.


  • Family Sharing

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

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