Tricorder is a simple tricorder for Android, using your phone's real sensors to detect magnetic fields, gravity, etc.


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Developer: Moonblink

Category: Travel

Latest version: 5.9

Total versions: 32

Submitted: 11 Nov 2010

Updated: 11 Nov 2010


Tricorder for Android displays gravitation and magnetic field, environmental and geographic information, based on information from the sensors in the device.

The app handles both portrait and landscape modes. It runs on QVGA, HVGA and WVGA displays, in landscape and portrait modes. On real hardware, it has been tested on the T-Mobile G1, Google ION / HTC Magic, HTC Tattoo, Motorola Droid, and HTC Nexus One, with some testing on the Hero (not the Sprint one), and LG.

Note: The newer versions of app run on Android 1.6+ OS. People with 1.5 phones can continue to use version 3.10.

Web site:


Tricorder 5.9 seem to be the latest available version. Below you can find file(s) assigned to this version:

Description/changelog of Tricorder 5.9:

Released: July 11, 2010.
- Close down the sound player when we suspend.

Old versions

Below are the earlier versions of Tricorder.

Tricorder 5.8

Description/changelog of Tricorder 5.8:

Released: June 12, 2010.
- Unbind Activity resources on stop.


Tricorder 5.7

Description/changelog of Tricorder 5.7:

Released: May 8, 2010.
- Catch and ignore some out of memory exceptions.


Tricorder 5.6

Description/changelog of Tricorder 5.6:

Released: April 25, 2010.
- Trap even more unexpected exceptions.


Tricorder 5.5

Description/changelog of Tricorder 5.5:

Released: April 7, 2010.
- Trap even more unexpected exceptions. Exit if we get floods of exceptions.


Tricorder 5.4

Description/changelog of Tricorder 5.4:

Released: April 6, 2010.
- When an unexpected exception occurs, app now displays debugging info (file name / line number) and attempts to continue, rather than just crash out.


Tricorder 5.3

Description/changelog of Tricorder 5.3:

Released: April 5, 2010.
- Fixed the signal strength and cell ID on CDMA phones with Android 2.1 on (maybe others?); the top-right button label; and a crash in AudioReader.


Tricorder 5.2

Description/changelog of Tricorder 5.2:

Released: March 20, 2010.
- Added an option for Imperial units (in GEO tab).


Tricorder 5.11

Description/changelog of Tricorder 5.11:

Released: July 20, 2010.
- Fixed GEO compass orientation in landscape mode.


Tricorder 5.10

Description/changelog of Tricorder 5.10:

Released: July 11, 2010.
- Fixed a crash due to sound player state when changing orientation.


Tricorder 5.1

Description/changelog of Tricorder 5.1:

[no description available for this version]


Tricorder 5.0

Description/changelog of Tricorder 5.0:

Released: February 24, 2010.
- Added user-initiated scanning in the GRAV and MAG pages, with the long-awaited SCANNING SOUNDS. You can still get the old mode; see options.


Tricorder 4.7

Description/changelog of Tricorder 4.7:

Released: February 15, 2010.
- Fixed fake sats data.


Tricorder 4.6

Description/changelog of Tricorder 4.6:

Released: February 14, 2010.
- Better, more LCARS-looking compass. Added suport for more audio analysis sampling rates, and for window function selection.


Tricorder 4.5

Description/changelog of Tricorder 4.5:

Released: February 6, 2010.
- Star date now displayed on screen.


Tricorder 4.4

Description/changelog of Tricorder 4.4:

Released: January 10, 2010.
- Better layout of the satellite signal bars for small screens (QVGA, e.g. HTC Tattoo).


Tricorder 4.3

Description/changelog of Tricorder 4.3:

Released: December 23, 2009.
- Fixed a crash in the SOL tab that became apparent when the data tables on the SOHO site changed.


Tricorder 4.2

Description/changelog of Tricorder 4.2:

Released: December 6, 2009.
- Much improved help. Added some more audio configuration options. The frequency spectrum graph now has a log scale, and doesn't auto-scale.


Tricorder 4.1

Description/changelog of Tricorder 4.1:

Released: November 29, 2009.
- Quick fix to add help for the ACO tab.


Tricorder 4.0

Description/changelog of Tricorder 4.0:

Released: November 29, 2009.
- Updated for Droid, and now based on Android 1.6. Will no longer install on Android 1.5 phones. This is need in order to be able to handle large screens (like Droid) correctly. Removed the useless ENV tab; realistically, even on devices with those sensors, it would never be useful. Added an ACO tab which displays an audio waveform, spectrum analyser, and power meter.


Tricorder 3.9

Description/changelog of Tricorder 3.9:

Released: November 20, 2009.
- Hopefully fixed the EMS crash on Samsung; apparently Samsung requires the READ_PHONE_STATE permission where other phones don't.


Tricorder 3.8

Description/changelog of Tricorder 3.8:

Released: November 11, 2009.
- Fixed yet more crashes, including hopefully some Hero issues. Fixed the bug with GRAV and MAG displays pointing the wrong way in landscape mode. Sound on Droid still doesn't work.


Tricorder 3.7

Description/changelog of Tricorder 3.7:

Released: November 8, 2009.
- Fixed a number of crashes, including a critical crash on the Droid. Sound on Droid still doesn't work.


Tricorder 3.6

Description/changelog of Tricorder 3.6:

Released: November 7, 2009.
- Just added a help comment about "CCD Bakeout".


Tricorder 3.5

Description/changelog of Tricorder 3.5:

Released: October 31, 2009.
- Fixed some crash bugs. Added a crypto mode indicator to the WiFi network indicators. Added a GPS satellite status view, with sky view and signal bar sub-modes.


Tricorder 3.4

Description/changelog of Tricorder 3.4:

Released: October 24, 2009.
- Added an option to set the orientation, including locking to your preferred setting.


Tricorder 3.3

Description/changelog of Tricorder 3.3:

Released: October 24, 2009.
- Fixed a force close issue, and in the process improved restart performance.


Tricorder 3.2

Description/changelog of Tricorder 3.2:

Released: October 14, 2009.
- Fixed some minor bugs, minor performance improvements.


Tricorder 3.10

Description/changelog of Tricorder 3.10:

Released: November 21, 2009.
- Fixed sound on the Droid; apparently Audacity saves MP3 files with a channel count of zero, and the Droid (unlike other phones) objects to this.


Tricorder 3.1

Description/changelog of Tricorder 3.1:

Released: October 13, 2009.
- Fixed the direction of the magnetic field, tried to fix force close on rotation.


Tricorder 3.0

Description/changelog of Tricorder 3.0:

Released: October 12, 2009.
- Added the solar data plot. It takes some time to load the first time you view it. Added neighboring cell info in the celluar signal display.


Tricorder 2.1

Description/changelog of Tricorder 2.1:

Released: January 2, 2009.
- Supports portrait and landscape QVGA and HVGA displays. Added relative mode, so you can (for example) zero the acceleration display with the device at rest, then see acceleration relative to that state. The graphs now scroll. The GRAV and MAG displays can now be zoomed (slide in the middle graph). There's an X/Y/Z plot alternative to the numeric display (touch it).

Version 2.0 (released December 29, 2008): Graphics code redone for better performance. The grav and mag graphs now update much faster. Simulated data option added for ENV panel.

Version 1.6 (released December 27, 2008): Now has a preferences panel, and the WiFi ping is optional. Better screen-switching sound.

Version 1.5 (released December 27, 2008): The hardware sound buttons now control our sound volume; faster feedback in GPS Power switch; more comprehensive help. Published on the Market.

Version 1.4 (released December 27, 2008): Wifi and GPS power controls added; WiFi now pings to indicate signal strength.

Version 1.3 (released December 26, 2008): More appearance improvements, and the WiFi monitor is now going. Published on the Market.

Version 1.2 (released December 7, 2008): More appearance upgrades.

Version 1.1 (released December 6, 2008): Functionality is basically the same, but it looks nicer, with more swoopy bars and so on.

Version 1.0 (released November 28, 2008): This is a basic working version.



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