Apps like Concentration Tool

Here are some great alternatives to Concentration Tool by gustar-droid :
Concentration training
Concentration training
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White Noise - calm,concentrate
White Noise - calm,concentrate
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FocusTimer /Pomodoro Technique
FocusTimer /Pomodoro Technique
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Speed reading - Schulte table
Speed reading - Schulte table
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Nature sounds relax & sleep
Nature sounds relax & sleep
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Piano Relax Music
Piano Relax Music
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Decoder Brain Training
Decoder Brain Training
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Screen Color Filter Lite
Screen Color Filter Lite
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OffScreen - Less Screen Time
OffScreen - Less Screen Time
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Focus Hero: Achieve your Goals
Focus Hero: Achieve your Goals
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Brain Wave Tuner Advance
Brain Wave Tuner Advance
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Dim Block
Dim Block
★3.7
Color Filter
Color Filter
★3.5
Screen & Notifications Dimmer
Screen & Notifications Dimmer
★4.5
Mood: Relaxing Sounds & Sleep
Mood: Relaxing Sounds & Sleep
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minimalist phone: Screen Time
minimalist phone: Screen Time
★4.6