# Mini 4WD Companion — RPM, Parts, Speed Tools

> RPM, Parts, Speed Tools (iPhone/iPad app by Onar De Jesus.)

- Source: https://appshunter.io/ios/app/mini-4wd-companion/id6760118186 (this page in markdown: same URL + `.md`)
- Developer: [Onar De Jesus](https://appshunter.io/developer/1882713803)
- Category: Utilities, Lifestyle
- Price: Free
- Age rating: 4+
- Requires: iOS 26.2 · 6 MB
- Languages: English
- Released: 2026-03-25
- Data updated: 2026-07-09
- User reviews in markdown: https://appshunter.io/ios/app/mini-4wd-companion/id6760118186/reviews.md

## What is Mini 4WD Companion?

Mini 4WD Companion is an unofficial utility app for Mini 4WD hobbyists.

It provides practical tools to help racers and builders measure, compare, and tune their setups from one place.

Features include:

Digital RPM Meter
Measure motor RPM using your phone's microphone.
- Real-time RPM readings
- Live frequency analysis
- Noise calibration for improved accuracy
- Saved readings for progress tracking

Parts Lookup
Search parts by item number, name, chassis, or description.
- Filter by category and chassis
- Quick lookup while building or tuning
- Opens manufacturer product pages externally for official details

Motor Guide
Review motor characteristics and tuning references.
- Compare motor types
- Check break-in notes
- Use reference information while testing setups

Speed Calculator, Gear ratio
Estimate theoretical setup speed based on RPM, gear ratio, and tire size.
- Compare gear options
- Test setup changes quickly
- Use as a planning tool before race day

and more tools

This app is an independent project for hobby use and is not affiliated with or endorsed by any manufacturer.


## Version history (last 4 releases)

### 1.3.0 — 2026-06-28

Improved RPM Meter reliability and smoother readings while measuring your motor.

### 1.2.0 — 2026-04-18

Performance improvement and bugfixes for the menu

### 1.1.0 — 2026-03-31

What’s New
- New My Cars setup suggestions based on track type, competition class, and chassis
- More tools, such as Gear ratio tables

Bugfixes and improvements

### 1.0 — 2026-03-26

No release notes.

## Related topics

[mini 4wd companion](https://appshunter.io/ios/topics/mini-4wd-companion) · [mini 4wd](https://appshunter.io/ios/topics/mini-4wd)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-09.*