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On my new phone, for security reasons I decided to stick to Open Source apps as much as possible.

Is there an Open Source flashlight app?

The most popular flashlight apps (1,2) are asking for crazy permissions: GPS, camera, Internet, GPS, SD card...

If no Open Source is available, at least one I would be happy with a very simple one, such as this one (white screen, brightness 100%, lock screen) which for some reason is not available for my new phone.

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Are you running the stock ROM on your handset? The flashlight app that's built into CyanogenMod 7.x is most definitely open source, but it will only work with CM7 installed. forum.xda-developers.com/showthread.php?t=1001132 –  Chahk Jan 1 '12 at 18:23
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closed as off topic by Izzy, t0mm13b, roxan, Al E., Liam W Mar 23 '13 at 21:53

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4 Answers

up vote 9 down vote accepted

Search Light is open source, has no unnecessary permissions, and has a nice set of operating modes.

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Very nice! Too bad my phone does not have a camera flash, I really should have mentioned this. Accepting though, because your answer is correct. –  Nicolas Raoul Jan 8 '12 at 4:16
    
I just submitted it to the F-Droid repository: f-droid.org/forums/topic/search-light –  Nicolas Raoul Jan 8 '12 at 4:19
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OI Flashlight is Open Source, it can use both camera flash and bright screen.

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I don't see any excessive permissions in Color Flashlight. Yes, it shows an ad for the first 10-15 seconds when you launch it (at the bottom of the screen, flashlight is still usable). The other permissions I believe are needed to change the screen timeout, backlight, and camera flash settings. It shouldn't be hard to make a truly free version, but I haven't seen one, and don't mind supporting a developer with a non-intrusive ad.

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Call me paranoid but "FULL INTERNET ACCESS" is already excessive for me... I guess they need it for the ads. Also, org.dyndns.devesh.flashlight does not need "MODIFY GLOBAL SYSTEM SETTINGS" to set the screen's brightness to maximum. –  Nicolas Raoul Jan 3 '12 at 10:07
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@NicolasRaoul Full internet access is used by every app with ads. And since the flashlight app makes use of hardware and changing settings like the screen timeout, it's likely that some phones or some feature of the app requires that permission. You can be paranoid if you'd like, but it might require a lot more effort and some of us have day jobs. –  BMitch Jan 3 '12 at 12:41
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Kevin's answer is great, but just some new info:

The Flashcard app, which was popular since very early on, has been released as Open Source:

https://github.com/devesh/Flashlight

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