Find a better fit
Start with the same category and recorded primary feature, then narrow by the features you need. These are discovery candidates, not a claim that every product replaces every feature.
Consider switching if these limitations affect you: Small speakers may render brown noise as a muddy rumble, which can be distracting. Pink noise may feel too soft in loud environments and may not mask speech as effectively as white noise.
Each one checked against slonoise: it does the same main job for a similar customer, so a buyer could choose it instead.
NeuroSet is an iOS app that plays binaural beats, pure tones, solfeggio frequencies, and guided breathing exercises as timed sets for focus, energy, calm, and sleep. It synthesizes audio live on the iPhone and offers a daily habit structure with streaks, scheduling, and reminders without requiring an account.