4iiii

Name: 4iiii
Rating: 1.6 (92 reviews)
Author: 4iiii Innovations Inc.

By: 4iiii Innovations Inc. App

Health & Fitness

Overview

Version:

3.5.0

Last updated: 2026-02-24

Ranking

#235,720 ▼ 1,736

Overall

Features & Capabilities

The 4iiii app is a health & fitness tool designed to maximize the use of 4iiii devices. It connects to PRECISION powermeters, Podiiiium, Viiiiva heart rate monitors, and the Fliiiight trainer to configure, update, and record workouts. The Ride Watch companion turns your Apple Watch into a cycling head unit, displaying power, cadence, HR, speed, and distance live, while recording FIT files and syncing with Apple Fitness and Strava. This app requires iOS 15.0 or higher and offers auto-sync for outdoor/indoor rides.

Key capabilities include device pairing/unpairing, zero-offset, custom device naming, and the Finder Feature map for locating equipment. It also supports over-the-air firmware updates, storage of workout data (Viiiiva stores up to 65 hours of data), and easy data export to your training software.

User Growth & Download Statistics

App Sports

By:

4iiii Innovations Inc.

Rating:

1.60

(92)

Version:

3.5.0 Last updated: 2026-02-24

Version code:

880736784

Creation date:

2013-02-16

Compatible devices:

Size:

29.88MB

URLs:

Website ,Privacy policy

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-07-16

Compare stats and ranking:

Ranking

# 235,720 ▼ 1,736

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

4iiii Innovations Inc.

Apple Apps Store

https://apps.apple.com/us/app/4iiii/id600704389

Website:

https://4iiii.com/

User Reviews

Users report strong reliability and maintenance issues: the app sometimes detects and calibrates meters (with battery readouts), but persistent Bluetooth instability, lack of multi-meter support, frequent firmware update failures, incomplete ride data, and weak support/maintenance dominate. Positive notes exist where connections work and calibration succeeds, but overall experience is hampered by instability and poor upkeep.

Pros

It can detect and connect to the power meter, and the app shows the battery level.
Zero offset calibration tends to work well when the meter is connected.
The app provides firmware update capability for meters (when the update process succeeds).

Cons

Frequent Bluetooth connection drops and unreliable pairing (right/left side detection often inconsistent).
No support for multiple power meters on a single device; you must manage meters separately.
Firmware update failures and overall update reliability are problematic (errors and failed updates).
Ride data can fail to record or be incomplete/delayed, with corrupted or missing files (e.g., red screens, partial FIT files).
Support and maintenance appear lacking (abandoned feel, non-responsive support, broken or missing documentation/website).

Recent reviews

Fields keep clearing themselves after filling them out and the bikeindex.org integration doesn’t support adding a power meter to an existing bike.

by he*****, 2026-02-16

The app has terrible connection issues sometimes can sense the right side sometimes the left side extremely irritating. I cant believe Shimano associated with such low quality product .