Why Clank comes first
We make Clank and prefer its approach. Our recommendations give the most weight to free app blocking that runs on your device and works with ordinary NFC tags. That makes Clank our editorial number one. It is not an independent award or a claim that Clank is the best option for every reader.
Someone who needs an Android app, a desktop blocker, or team collaboration may be better served by another product. We include those differences in each comparison.
How we research
We compare competitors using their official websites, documentation, and store listings. For Clank, we use the app's implementation, documentation, and App Store listing. Sources are linked alongside claims and collected at the end of each article.
These are comparisons of documented features. We do not claim to have run a hands-on test unless an article describes the test and its evidence. We do not invent ratings, testimonials, screen-time reductions, or productivity results.
There are no paid placements or affiliate links in these articles. Product prices and availability can change. The review date is shown on every article.
Clank's current availability
Clank is available for free on the App Store for iPhone and iPad. All features are included, with no subscription or account required. Android is not available for download yet.
Use a compatible NFC tag with a supported iPhone, or generate and print a QR tag in Clank. iPad uses QR tags. No branded hardware is required. Any tag or printing costs are separate.
Download Clank on the App Store and check the tag guide before buying a tag.
Corrections
To report a factual error, use the contact details for DCTR s.r.o. and include the article URL, the claim, and a primary source showing the correction.