This was posted 6 years 1 month 6 days ago, and might be an out-dated deal.

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(Android) Blue Light Filter Pro $1.29 (Was $3.79), Auto Optimizer $1.29 (Was $3.59) @ Google Play

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Blue light filter - pro rated 4.5/5 with over 100k downloads.
An app that reduces the amount of blue light emitted by overlaying a translucent filter.
It keeps the eyes healthy by reducing the amount of blue light that reaches them and helps users achieve comfortable sleep.

Auto Optimizer -rated 4.4/5 with over 100k downloads.
- Auto optimize your device to keep it functional!
- Easy to use, highly effective, faster processing speed!
- Optimize instantly with just a tap on the home button. → Achieve a smooth operation on your device.
- Display memory and battery info on the status bar or overlay.
- Equipped with a powerful battery saver function. Battery life will be significantly improved!
- Equipped with functions to clear various histories and caches.
- Auto optimization execution condition and details can be set.
- Advanced settings are also available for display during execution.
- Optimize instantly with just a tap on the shortcuts.
- Realize the fastest possible processing speeds by eliminating unnecessary processes.
- Flexible settings to fit the way you use your smartphone, including detailed auto-executing conditional settings.
- Check detailed information about the state of your device, including the ability to display remaining memory.

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Google Play HDM Dev Team
Google Play HDM Dev Team

closed Comments

  • I once used something similar, but removed as I found it messed with a lot of apps. Some banking apps wouldn't open as it detected an overlay, and other apps wouldn't respond until I turned off the app

  • +1

    These are all useless apps and you probably won't use them much after a week or two.

    • +1

      Blue light filter is good if your phone is old and doesn't have this natively. Optimiser apps are a complete waste of money on the other hand, even when they are free the cost to your phone is not worth it.

  • +3

    I'm almost certain that Android does these things natively. Why would you pay for these?

    • I believe devices running OS v7.0 and onwards have this natively, but not those devices running Marshmallow and earlier.

      • Unless it's a samsung/xiaomi etc.

        • +1

          My Galaxy S7 has the filter built in (running 7.0)

        • @mastablasta: Some Xiaomi etc are on 6.x and have bluelight as it's a feature of the skin/overlay.

    • It’s called night shift on apple devices.

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