Study what you don't know. Skip what you do.

Gapwise is an independent practice app for the CompTIA® Security+® (SY0-801) exam. A short placement check finds your gaps, and every study session goes where you need it most.

Coming soon to iPhone. Android will follow.

• Finds your gaps

  The placement check spreads questions across the exam's domains, weighted like the real exam.

• Skips what you've mastered

  Topics you've shown you know step aside, then come back for quick checks at 7, 21, and 60 days.

• Explains every answer

  Each question explains why every option is right or wrong and cites a public reference you can check.

• Practice for performance-based questions

  Matching, ordering, log triage, diagram and table tasks with explanations.

• Mock exams

  Timed practice exams with results by domain.

• Private by design

  Study works offline. No account, no ads, no analytics, no tracking. Progress is saved locally and is not sent to us. Your operating system may make backups or transfer app data; see our privacy policy.

Free to start, one-time unlock

Try about 15% of the questions across every exam domain, a sample of each hands-on task type, the placement check, all drills and one submitted short mock. One purchase unlocks the remaining content and unlimited mocks for this exam. No subscription. Purchases, Restore Purchases and opening reference links need a connection.

How the questions are made

Every question is original and cites a public reference such as NIST, IETF RFCs, OWASP, or MITRE ATT&CK. Questions are written with AI. Two separate AI reviewers answer each one without seeing the answer key, first on their own and then against the cited sources. Automated checks catch duplicates, quotes that no longer match their source, and formatting problems, and an independent AI auditor re-checks a sample of every batch plus every question that needed a fix.