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Curbox vs one sec: catalog facts
Curbox	one sec
Free Free and open source under the GPL 3.0 or later.	Freemium Free to download, with optional paid features.
Android	Android, iOS
Blocks Reels and Shorts without blocking the whole app Wide choice of unlock challenges, including NFC and QR codes	Adds friction before opening chosen apps instead of only hard blocking Can also block websites
Android only Self-imposed limits can still be worked around by a determined user	Closed source Pricing for extra features is not detailed on the homepage
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0-or-later	License not stated
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.