# tes•LAX - CAN Bus Explorer — OBD Visualizer for Popular EVs

> CAN bus explorer and data visualization tool for vehicles. (iPhone/iPad app by All About Jake, LLC.)

- Source: https://appshunter.io/ios/app/teslax-can-bus-explorer/id1495403139 (this page in markdown: same URL + `.md`)
- Developer: [All About Jake, LLC](https://appshunter.io/developer/393776941)
- Category: Utilities
- Price: Free with in-app purchases
- Rating: 4.37/5 from 19 App Store ratings · 16 written reviews indexed
- Age rating: 17+
- Requires: iOS 13.2 · 23 MB
- Languages: English
- Released: 2020-03-09
- Data updated: 2026-06-08
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/teslax-can-bus-explorer/id1495403139/reviews.md

## What is tes?

tes•LAX is a CAN bus Explorer and visualization tool that works with CAN data from many sources, including gas-powered and electric vehicles.

** tes•LAX can connect to some OBD-2 accessories to show live CAN Bus data from your vehicle. Additional wiring, and installation is necessary.  Damage done to your vehicle may not be covered by vehicle warranty. Proceed at your own risk. **

- Predefined visualizations with many useful signals for a popular types of electric vehicles.
- Designed to analyze and visualize CANBus data with 11-bit message identifiers.
- Works with the OBDLink MX+ and CX, vLinker MC+ and WiFi, and other WiFi and Bluetooth Low Energy accessories.  Note that "Classic Bluetooth" accessories other than the OBDLink MX+ are not supported.  Please visit https://teslax.app for more information on supported accessories.
- Support for accesories supporting the Panda UDP Protocol.  Note: Comma.ai has discontinued WiFi support for the Panda White.  You many be able to flash your Panda to an old version of firmware to maintain WiFi support.  The Comma.ai Panda is for advanced users only and not recommended for normal users. 
- Playback CAN Bus log files.  (TXT, ASC and BLF file formats)
- Data sources containing multiple buses (ASC/BLF log files, Panda)

With an "Extended Release" purchase or subscription:

- Configure the visualization by choosing signals from the included signals database.
- Additional pages of pre-configured visualization in provided presets.

For pros, and tinkerers, an "Extra Strength 2.0" purchase or subscription unlocks additional features:
- New in 2.0: Additional full page visualizations such as a Drag Timer, Matrix View, and Graph.
- Record log files in TXT, ASC, and BLF formats and convert to comma separated format (CSV)
- Create and edit presets.
- Modify the signal database to create and update signals as the vehicle manufacturer changes the data format.
- Export presets to file for backup/sharing and re-import them.
- Ability to import DBC files (containing signal definition information).
- A "Binary Matrix" view of a message or signal for reverse engineering data streams.
- Use javascript code to calculate a result value from the raw message bytes (or other defined signals within the same message)

This software is not affiliated with or endorsed by Tesla Motors or any vehicle manufacturer.

This app accesses data streams that are not documented or supported by the vehicle manufacturer.   If the manufacturer decides to change the data stream, then this app may display incorrect information.  If the manufacturer removes data, then some or all functionality of the app may cease to work.  Many signals in the signal database may be from previous versions of the vehicle operating software (such as the cell voltages, which were removed in a software update many updates ago)

You are responsible for all risks of installing and using 3rd party hardware in your vehicle.

Do not use tes•LAX while driving.  Please obey all traffic laws and do not drive while distracted.

tes•LAX uses bluetooth and local network access only for the purpose of connecting to accessories.  Analytics are not collected at any time. 

Use caution when using accessories that are not secured via password or pairing.  See https://teslax.app/supported-hardware/ for more information.

You accept full and unconditional responsibility for the use of this software. All About Jake, LLC is not responsible for any consequences of using this software, including any damage to your vehicle, loss, damage to property, personal injury, or violation of law that may occur in connection with using this application.  Obey all laws and respect the privacy of others. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND.  The author(s) and copyright holders shall not be liable for any damages, even if advised beforehand of the possibility of such damages.

Full terms of use can be found here: https://www.teslax.app/terms-and-conditions/

## Key features

- Live CAN bus data visualization
- Support for OBDLink and vLinker accessories
- Playback of CAN bus log files
- Customizable signal visualizations
- Advanced data analysis tools
- DBC file import

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Extra Strength Subscription | $9.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Extended Release 1.0 | $6.99 | one-time |
| Extra Strength 1.0 | $14.00 | one-time |
| Extra Strength Upgrade 1.0 | $5.99 | one-time |
| One-Time Free 5-day Pass | Free | one-time |
| Extra Strength 2.0 | $18.99 | one-time |
| Upgrade to Extra Strength 2.0 | $10.99 | one-time |
| Extra Strength Upgrade to 2.0 | $4.99 | one-time |


## Recent user reviews (10 of 16)

All indexed reviews: https://appshunter.io/ios/app/teslax-can-bus-explorer/id1495403139/reviews.md

### 2/5 — Does not work with VLinker

*2026-01-02*

Probably is a great app, it appears really well built, but the developer advertises—and you can see the VLinker MC+ however when it tries to connect it ends up disconnecting. Unable to use.

### 5/5 — Best CAN data viewer!

*2024-08-08*

Awesome app, combined with canserver its a great way to see all the data on your Tesla’s CAN data.

### 1/5 — Useless on 2024 Model Y!

*2024-06-07*

Gives incorrect LV battery voltage & current draw. Never - after multiple attempts & long drives - populated all cell voltages.

**Developer response:** tes•LAX is a generic CAN bus monitoring and visualization tool.  As is explained in the app listing and in the app itself, the developer does not actively respond to the frequent changes made by vehicle manufacturers to CAN bus signals.  The Extra Strength feature set allows customers to maintain the signal information themselves in response to such changes.  On a best-effort basis, we will occasionally update the decoding logic for some vehicles when new information is available from the community.  Please reach out to support for further assistance.

### 1/5 — Not user friendly

*2024-02-29*

Can’t find anywhere where it shows you how to connect your car to this app. Maybe I’m just an idiot if it’s there in the app, they don’t make it easy to find. if you cannot connect the application to the car it’s useless so until I figure out how to connect my car to this, it’s useless 19 bucks wasted

**Developer response:** Sorry you are dissatisfied with your purchase.  Core functionality of tes•LAX is completely free and the app strongly recommends that you test your hardware accessory installation and connectivity fully before choosing to unlock additional features.  Please consult the app's help menu and the tes•LAX website for documentation and helpful videos.

### 5/5 — Gut gepflegte App insbesondere für Tesla

*2024-01-15, version 2.4.2*

Bildschirme können umgestaltet werden, so dass perfekt passende eigene Ansichten möglich sind.
Mittlerweile ist das auch für Diagramme möglich, top.

Die App und die Can-Bus-Parameter werden gepflegt, so dass die App auch in Zukunft noch sinnvoll nutzbar ist.

Die HUD-Funktion mit gespiegelter Darstellung für die Reflektion über die Frontscheibe ist ein nettes Gimmick.

Leider hinkt die In-App-Hilfe der sehr aktuellen Version auf der Internet-Seite des Programmierers hinterher, so dass in der App der Hinweis auf den sicheren und sehr schnellen und trotzdem recht günstigen vLinker FS mit classic Bluetooth für iOS fehlt, das sollte unbedingt nachgetragen werden.

### 1/5 — Broken in ios17

*2023-10-02*

Does not work any more beware

**Developer response:** tes•LAX has many active users on current operating system versions.  Please reach out to the various support options to help resolve any issues you may be experiencing.

### 5/5 — Je recommande

*2023-04-09*

Superbe application je recommande. Je l’utilise sur une model 2 2020 SR Plus . Très complet et facile à utiliser. Je l utilise avec le comander SEXY  marche superb bien . attention dans mon cas j ai du rentrer manuellement l adresse protocole panda du sexy .

### 5/5 — Excellent tool

*2022-05-27*

The app is really well designed and allows you to customize the gauges and even make your own. Finding the best Bluetooth adapter is a bit of a gamble. I tried several and so far the best is the MX+ which works great with my iPhone 13 max. Other adapters work but some data is missing. The only thing are the graphs. With some signals they just flicker

### 5/5 — Pretty awesome!

*2022-03-16*

Shocked there’s only 10 reviews. If you like to tinker and see data, and own a tesla, you’ll love this. My only critique would be to translate some of the nomenclature into natural language to improve understanding for more people. LOVE the performance tab that records speed runs. Hope this keeps being updated and maintained!

### 5/5 — AWESOME! But…

*2022-03-05, version 2.0.3*

This App is awesome and works absolutely flawlessly for me. Great work! 

I would just love to see it being published to be used with Apple Silicon Macs. It’s the same architecture as iPhones/iPads and to my knowledge not a big hustle to make it available on M1 Macs. 

I would very much appreciate it! 

Thanks!

## Frequently asked questions about tes

### What vehicles can tes•LAX connect to?

tes•LAX can connect to CAN data from many sources, including gas-powered and electric vehicles. It is designed to work with popular EV models and supports various OBD-2 accessories for live data.

### What OBD-2 accessories are supported by tes•LAX?

Supported accessories include OBDLink MX+, OBDLink CX, vLinker MC+, and other WiFi and Bluetooth Low Energy accessories. Classic Bluetooth accessories other than OBDLink MX+ are not supported. Visit https://teslax.app for a full list.

### Can I playback CAN bus log files with tes•LAX?

Yes, tes•LAX supports playback of CAN bus log files in TXT, ASC, and BLF formats. This allows you to analyze recorded data at your convenience.

### What advanced features are available with purchases or subscriptions?

Purchases and subscriptions unlock features like configuring visualizations with a signal database, additional pre-configured visualization pages, drag timers, matrix views, recording log files to CSV, and creating/editing presets.

### Is tes•LAX safe to use in my vehicle?

The app warns that damage done to your vehicle may not be covered by warranty and users proceed at their own risk. It also advises against using tes•LAX while driving and to obey traffic laws.

### How often is tes•LAX updated?

The latest version is 2.4.3, and it was last updated on March 27, 2025. This indicates a relatively active development cycle.

### What is the age rating for tes•LAX?

tes•LAX has an age rating of 17+, suggesting it contains content or features that may not be suitable for younger users.

### Does tes•LAX have ads?

No, tes•LAX does not contain advertisements. Its monetization is based on free availability with optional in-app purchases for advanced features.

## Version history (last 5 releases)

### 2.4.3 — 2025-03-27

- Updated profile for 3&Y 12v and HVAC signals
- Alternate App Icons
- Signal decoding fixes and fixes for big-ending signals
- Fixes and improvements to the handling of some AT- and ST-based accessories.
- Fix for brick ordering on the default `S & X EVs: Pre-2021 Refresh` profile.  If you have customized this profile, you can apply this fix yourself by editing the ordering/numering on the brick page to be sequential.  Otherwise, "Restore Full Preset to Bundled Version" to fully reset the profile.

### 2.4.2 — 2023-08-12

- Fix for decoding of some big endian signals.
- Updated binary matrix gauges with fixes to properly show the signal bits on some big endian signals.

### 2.4.1 — 2023-07-09

# Version 2.4.1 - Minor bug fixes and improvements:
- New Rivian preset update with SoC signal.
- Gauges that use signals with dynamic units now show the proper unit label when the app first launches.
- At slow speeds, a slight drop in speed would be enough to prematurely stop the Drag Timer.  The Drag Timer now has a "grace period" of 1 second at the start of the run where a slight slow-down will not trigger a stop condition.
- Added Watt-Hours/Mi and Watt-Hours/km as options for dynamic unit conversion based on the users preferences.
- Updates to the 3/Y/S/X profiles to take advantage of the new Watt-Hours dynamic units.

### 2.4 — 2023-04-26

- Support for the vLinker FS Bluetooth accessory.
- Better handle the case where AT/ST accessories run out of filter memory.  The app will display a status message and disable filtering.  If your accessory performs poorly without filtering, you can simplify your preset to use fewer messages, which will reduce the number of filters required.

### 2.3 — 2023-04-03

# Version 2.3
- Very early & experimental Rivian profile.  The vehicle is under active reverse engineering by the community.  A small subset of the signals are available.  The preset can be used by advanced users with access to the Platform and MotorFront buses, but the details are not visible in the signal list.  This is to protect the work of the ongoing reverse engineering efforts.  The author of tes•LAX does not support this profile and cannot provide instructions on how to connect to the CAN buses of the Rivian.
- SNA Support - "SNA" stands for "signal not available"  Some signals that return a numeric value most of the time may have a specific value that indicates the signal is unavailable or special in some way.  Now, if your numeric signal has an enumeration defined and the data returns one of these specific values, and the gauge will display the text label.  Specific changes:
    - You can now define enumeration entries for signals that are not enumerations.
    - If a signal decodes to one of these enumeration values (both before or after the factor/offset are applied) then the gauge will show the last known numeric value with an indicator overlayed for the enumeration value.
- Fixed a bug related to CSV export of multiplexers
- Fixed a bug related to the max value being rendered incorrectly on a matrix page.

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All apps by All About Jake, LLC: https://appshunter.io/developer/393776941

## Related topics

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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 2026-06-08.*
