# CAN Studio — Powerful CAN workbench

> Powerful CAN workbench (iPhone/iPad app by Fearless design, LLC.)

- Source: https://appshunter.io/ios/app/can-studio/id6477373179 (this page in markdown: same URL + `.md`)
- Developer: [Fearless design, LLC](https://appshunter.io/developer/321056993)
- Category: Utilities, Developer Tools
- Price: $59.99
- Age rating: 4+
- Requires: iOS 17.0 · 2 MB
- Languages: American English
- Released: 2024-02-05
- Data updated: 2026-08-21
- User reviews in markdown: https://appshunter.io/ios/app/can-studio/id6477373179/reviews.md

## What is CAN Studio?

CAN Decoder is an ISO 15765-2 CAN frame utility for quickly and easily understanding the contents of CAN bus data frames.

Inspect frame packet data and frame structure in one place on any of your devices. Decode SAEJ1979 standard OBD parameter values instantly, with live-updates as you type.

Features:
- Copy frame data as hex bytes, as base64 encoding, and as ASCII text.
- Import PacketLogger .pklg files that contain OBD scanner session data to automatically extract OBD command/response messages.
- Decode ISO 15765-4 CAN 11-bit ID and 29-bit ID.
- Decode SAEJ1979 Service 01 standard parameter id values.


## Version history (last 5 releases)

### 1.4.0 — 2024-10-16

You can now decode standard service 01 SAEJ1979 parameters, enabling rapid debugging and analysis of OBD CAN frame data.

### 1.3.1 — 2024-10-03

29-bit CAN IDs are now supported for decoding.

This patch release also sets the default decoding option to "automatic", which will attempt to infer whether the CAN frame is 11-bit or 29-bit.

### 1.3.0 — 2024-09-30

29-bit CAN IDs are now supported for decoding.

### 1.2.1 — 2024-06-07

This is a minor patch release with the following improvements:

- ATMA decoding from .pklg imports now handles lower-cased variants of the ATMA command.
- "OK" responses are now handled without failure.
- Removed some unused dependencies to reduce app binary size.

### 1.2 — 2024-03-26

New app icon, but otherwise the same CAN Decoder you know and love!

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## More apps by Fearless design, LLC

- [Pelican: Automotive assistant](https://appshunter.io/ios/app/pelican-automotive-assistant/id1663683832)
- [ELMCheck](https://appshunter.io/ios/app/elmcheck/id6479630442)
- [Scout, by Sidecar](https://appshunter.io/ios/app/scout-by-sidecar/id6749034239)

All apps by Fearless design, LLC: https://appshunter.io/developer/321056993

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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 2026-08-21.*