Compare software

one sec vs Defang: catalog facts
one sec	Defang
Freemium Free to download, with optional paid features.	Free Free and open source under the GPL-3.0 license.
Android, iOS	Android
Adds friction before opening chosen apps instead of only hard blocking Can also block websites	Adds a pause before opening distracting apps Overridable by design rather than a hard block
Closed source Pricing for extra features is not detailed on the homepage	Easy to bypass by design Young project with a small user base
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0-only
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.