FlowLock

Lock into your flow state.

Real-time binaural beats generated on your device. Science-backed frequencies. Zero internet. Zero subscriptions.

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FlowLock player screen

Focus Modes

Five modes. One goal.

Each mode targets a specific brainwave frequency, tuned for the type of work you need to do.

Deep Focus 40 Hz

Intense concentration. Maximum output.

Hyper Focus 16 Hz

High-energy bursts. Sprint mode.

Study 10 Hz

Calm retention. Built for learning.

Light Work 12 Hz

Easy flow. Creative tasks.

Relax 6 Hz

Decompress. Wind down. Recover.

Screenshots

Designed for deep work.

Clean interface. Zero clutter. Every pixel serves a purpose.

Choose Your Mode

Choose Your Mode

Full Mixer Control

Full Mixer Control

Pomodoro Timer

Pomodoro Timer

Focus Stats

Focus Stats

The Science

Why binaural beats?

Binaural beats work by playing two slightly different frequencies in each ear, encouraging your brain to synchronize at the difference frequency. Used by researchers and productivity-focused professionals, they are a well-studied tool for enhancing focus, relaxation, and cognitive performance. FlowLock generates these tones in real-time on your device — no pre-recorded loops, no streaming, no compromises.

6–40 Hz
Frequency Range
5
Tuned Modes
0 ms
Latency
100%
Offline

Pricing

One price. No tricks.

$7.99
one-time — yours forever
Less than two coffees. No monthly fees. Ever.
  • Real-time binaural generation
  • 5 science-backed modes
  • Pomodoro timer
  • Focus stats
  • Works 100% offline
  • No account required
  • iOS + Android
App Store Coming Soon Google Play Coming Soon

FAQ

Common questions.

How does it work?
Binaural beats need stereo headphones. FlowLock generates two slightly offset frequencies in real-time on your device — no pre-recorded audio, no streaming.
Do I need internet?
No. FlowLock works 100% offline after download. No cloud, no servers, no data leaving your device.
Is it a subscription?
No. $7.99 one-time purchase. Yours forever. No trials, no upsells.
What devices?
iPhone (iOS 15+), iPad, and Android (8.0+).
Does it work without headphones?
The binaural beat effect requires stereo headphones to work. The app will still play audio through speakers, but the frequency-following effect is reduced.