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Opal vs DetoxDroid: catalog facts
Opal	DetoxDroid
Freemium Free to download, with a paid Opal Pro subscription for more features.	Free Free and open source under the GPL-3.0.
macOS, Android, iOS	Android
App blocking rules that apply on phone and desktop Focus timer that locks apps until it runs out	Calmer phone by default rather than opt-in timers No payment or penalty mechanics
Some features require the paid Pro subscription Gamified rewards and friend invites may not suit everyone	Android only Less structured than apps built around usage limits
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.