# R/C Trailink — ESC programmer & App Drive

> ESC programmer & App Drive (iPhone/iPad app by John Holmes.)

- Source: https://appshunter.io/ios/app/rc-trailink/id6817868271 (this page in markdown: same URL + `.md`)
- Developer: [John Holmes](https://appshunter.io/developer/6817868273)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 15.1 · 27 MB
- Languages: American English
- Released: 2026-11-03
- Data updated: 2026-11-05

## What is R/C Trailink?

TrailLink turns your phone into a Bluetooth programmer for R/C speed controllers. Plug the TrailLink adapter into your ESC's signal lead and connect from the app — no laptop, no USB linker.

TUNE YOUR ESC
- Read and change every setting on AM32 and ESCape32 speed controllers
- Basic and Advanced views, with explanations for the settings
- Holmes Hobbies presets for common crawler and trail setups
- Save your setups in My Settings and put them back on any time

KEEP FIRMWARE CURRENT
- Update AM32 and ESCape32 firmware from the app
- Switch supported ESCs between AM32 and ESCape32 — TrailLink checks compatibility first and keeps a backup of your settings so you can switch back
- TrailLink adapter updates are delivered through the app

APP DRIVE
- Drive the ESC and a steering servo straight from your phone for bench tests and slow-speed moves
- Throttle only runs while your thumb is on the control; lose the connection and everything returns to neutral
- One-hand or two-thumb layouts, adjustable endpoints and reversing

ALSO
- Live signal view of your receiver's throttle pulse
- Wiring help with zoomable photos
- Demo Mode to look around the app without hardware

TrailLink needs a TrailLink adapter from Holmes Hobbies and a supported ESC.

Privacy: no account, no analytics, no tracking. Your settings and saved setups stay on your phone.

## Is R/C Trailink safe?

Not enough ratings yet to assess R/C Trailink.

## Is R/C Trailink legit?

R/C Trailink has limited verification signals. The AppsHunter Legitimacy Score for R/C Trailink is 50 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 1.0.7 — 2026-11-04

• ESC Rescue: find a stuck ESC and start or repair its firmware.
• App Drive: smoother driving, plus support for the TrailLink RX4 board (2-speed, drag brake, and steering passthrough from your receiver).
• Switching between AM32 and ESCape32 is more reliable, and an interrupted switch can be finished.
• ESCape32 startup music now saves reliably.
• Optional app update check (Manual by default).
• Includes TrailLink firmware 1.0.19.
• A cleaner look and many small fixes.

### 1.0.6 — 2026-11-03

No release notes.

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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 2026-11-05.*