Comparisons with other blockers and accountability apps.
Windows and Mac comparison: Sigma Vision, HardStop, ZenView, Covenant Eyes, Canopy, Qustodio. Bark is listed so you do not buy it for a PC.
Best Adult Content Blocker for Windows and Mac (2026) Read More »
Covenant Eyes emails screenshot reports to a partner. Sigma Vision locks the Windows or Mac session. Family and Pro can email a partner or parent.
Covenant Eyes Alternative for Windows and Mac Read More »
Qustodio is a full parental suite. Sigma Vision is desktop detection and lockout. Buy the job, not a clone.
Qustodio vs Sigma Vision: Family Suite vs Desktop Lockout Read More »
Canopy wins phones, apps, and AI chat filtering. Sigma Vision is the desktop alternative: Windows and Mac lockout after detection, not just a blur.
Canopy vs Sigma Vision: Apps and Chat vs Desktop Lockout Read More »
Bark is mobile messaging alerts. Sigma Vision is Windows and Mac. They are not substitutes.
Bark Does Not Cover Windows or Mac: What to Use on the Computer Read More »
ZenView closes the window. Sigma Vision can lock the Windows or Mac session. Same detection class, different ending.
ZenView Alternative: Close the Window vs Lock the Computer Read More »
Sigma Vision is the better HardStop alternative on Windows and Mac: on-screen AI and a session lock after warnings. HardStop is phone-first. Sigma Vision does not cover iPhone.
HardStop Alternative for Windows and Mac: Sigma Vision Wins on Desktop Read More »