Learn before you drill
Read bundled lessons, worked examples, key points, and glossary terms without a connection.
RivetPrep
Android 8.0+ / Tester invitationsFOR CURIOUS TRADE LEARNERS
RivetPrep.
Build your study rhythm.
Make room for a little learning, wherever the day takes you. RivetPrep brings offline EPA Section 608 lessons, practice questions, and personal review tools to your Android phone.
- 500 original practice questions with answer explanations.
- 24 offline lessons across the four study sections.
- Study plans, flashcards, notes, and custom decks.
VOLUNTEER TESTERS WANTED
Be one of the first to try RivetPrep.
Have an Android phone and a little curiosity? Volunteer to test the app, share your feedback, and help shape what comes next.
An invitation request, not an immediate app download. Please use the email linked to your Google Play account.
A CLOSER LOOK
What you can help us improve.
Built for Android. Shaped by feedback.
Features may vary between testing builds.
Practice with purpose
Try quick sessions, focused section drills, bookmarks, mistake retries, and configurable timed study mocks.
Make it yours
Keep private notes, build your own study decks, and use recall-first flashcards with confidence ratings.
Find your next step
Review coverage and activity, follow a study plan, and return to concepts that need another look.
Keep progress nearby
Learning data stays on your device. Export a backup yourself when you want to keep a separate copy.
Help improve the material
Report unclear questions, confusing explanations, accessibility issues, and bugs. Subject-matter feedback is especially welcome.
WHAT HAPPENS NEXT
A little feedback goes a long way.
Verify your email
Use the email linked to your Google Play account and enter the one-time code. You are signing up for RivetPrep only, not our other apps.
Wait for an invitation
We will contact selected verified volunteers when a testing build is ready. This is not an immediate download or a promise of access.
Try it. Tell us.
Try a lesson, complete a practice session, and tell us where the study flow or explanation could be clearer.
LEARN. TEST. IMPROVE.
Meet the volunteer testers.
Help make an offline study companion clearer and easier to use. Only email-verified testers who choose to appear are listed. Each person chooses a public name and whether their email is masked or shown in full.
Tester list not loaded
Not appearing? Your email may still need verification, or you chose to stay private. You can change your choices by signing up and verifying again. Names are self-provided, not identity-verified. Existing testers are not published automatically.
Your app data and your choice.
Study features work offline without an app account, advertising, or tracking SDKs. Optional official reference links open in your browser. Your chosen backup provider handles any file you export to it.
The optional website tester list is separate from the Android app and from our other app lists. Read the tester signup privacy details before joining.
Independent practice, not a certification.
RivetPrep is independent of the EPA and testing providers. Its original learning content awaits qualified subject-matter review. It is not an official exam bank, an approved course, or a promise of passing. The English-language material concerns U.S. EPA Section 608; choosing another region does not change the certification content.
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