# 4iiii

> Health & Fitness

Canonical page: [https://chrome-stats.com/d/id600704389](https://chrome-stats.com/d/id600704389)

## Overview

- **ID:** `id600704389`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** 4iiii Innovations Inc.
- **Category:** Health & Fitness
- **Rating:** 1.60 / 5 (92 ratings)
- **Version:** 3.5.0
- **Last updated:** 2026-02-24
- **First published:** 2013-02-16
- **Size:** 30 MB
- **Data as of:** 2026-09-21
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/4iiii/id600704389)
- **Website:** [https://4iiii.com/](https://4iiii.com/)
- **Privacy policy:** [http://4iiii.com/legal-policies/](http://4iiii.com/legal-policies/)

## Description

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.

## Rankings

- #207,126 — Overall

## Review summary

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).

## Similar extensions and apps

- [HR2VP Bike Training & Tracker](https://chrome-stats.com/d/id1500870126) — 1.80 / 5
- [FITIV Ride GPS Cycling Tracker](https://chrome-stats.com/d/id1010501063) — 4.50 / 5
- [iBiker Cycling & Heart Trainer](https://chrome-stats.com/d/id292015062) — 4.80 / 5
- [Wahoo](https://chrome-stats.com/d/id391599899) — 4.70 / 5
- [Intervals.icu Companion](https://chrome-stats.com/d/id6739638454) — 4.90 / 5
- [Fit+](https://chrome-stats.com/d/id722056315) — 2.30 / 5
- [iSmoothRun](https://chrome-stats.com/d/id410965399) — 4.40 / 5
- [FITIV Run GPS Running Tracker](https://chrome-stats.com/d/id983858551) — 4.50 / 5
- [WiRIDE eBikes](https://chrome-stats.com/d/id6794257483)
- [Fitstatics - Fitness Monitor](https://chrome-stats.com/d/id1594526614) — 4.80 / 5
- [IrieFit](https://chrome-stats.com/d/id6769857373) — 5.00 / 5
- [Pedal – Ride into the future.](https://chrome-stats.com/d/id6450464797)

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Source: [Chrome-Stats](https://chrome-stats.com/d/id600704389)