Study apps for certification exams

Don't just memorize the answer. Understand the clue.

ClueLuma makes phone study apps for certification exams. Our original practice questions explain why every option is right or wrong, so you learn what to look for.

IT security

Security+ SY0-701

For people starting in IT and security.

990+ practice questions, every option explained
100 hands-on tasks (PBQ) and a 90-question mock exam
English, Korean, Japanese and Spanish

See the Security+ app → Energy management

CEM^® exam prep

For energy managers and engineers.

1,041 calculation-focused questions and two 130-question practice exams
Formula calculator and an endless calculation drill
IP or SI units · English, Korean and Spanish

See the CEM app →

The same promise in every app

Original questions

Written from each exam's published topics. No leaked questions (dumps).

Free trial first

Try it without an account or a card. Pay once; no subscription.

Phone and computer

Works offline. Log in and your progress follows you.

Questions or ideas?

Email us any time. Requests for new exams and languages are welcome.

help@clueluma.com