Check the acquisition promise
Read the store headline, screenshots and description. What problem is the app promising to solve?
Study the storefront ↗After Hours Data Systems LLC · iOS
Explore the ad evidence, study the storefront, and build your next acquisition hypothesis.
01 / Creative research
Read the store headline, screenshots and description. What problem is the app promising to solve?
Study the storefront ↗Explore apps with direct store-link matches. Compare their hooks and formats without assuming the same approach works here.
Browse observed advertisers ↗Store rankings and revenue estimates describe market context. They do not establish ad spend, conversions or ROAS.
Review the market context ↗02 / Storefront & product
Study the product story and store experience behind the acquisition funnel.
The store evidence
US store price
$12.99
US rating
3.9 / 5
US rating count
120
Current version
65
2026-08-17 · Developer notes
• 80 new questions on the AIM Act, A2L refrigerants, and 2025-2026 rules • Each section shows how many questions are due for review • Restoring a backup is safe: a bad file is rejected, not applied • Fixed crashes in Cram mode and when resuming Smart Practice • Stats update as soon as you finish studying • Most Missed lists every missed question, not just 50 • Easier-to-read text at every text size
Store metadata collected 2026-10-09 UTC · US storefront · Source record. Free may include in-app purchases. Public data does not update revenue estimates.
03 / Market context
Keep revenue, downloads and store rankings separate from advertising performance.
I should start off the review by saying that the app is good in respects to what you can expect to see on the actual exam and should be used more as a supplement to actual studying (which I recommend skillcat), but I did note a few things that felt careless by the developers. For starters, I saw it had older and outdated questions that aren’t in modern versions of the section 608 exam. I’m not sure how the questions are gathered but they should be up to date with modern versions and exclude content from outdated versions of the exam this app is for. This aspect really fluffs the use of this app and provides unnecessary information and questions that gets in the way of studying for a modern version of the section 608 exams. Another thing I took note of was the app experience falling short in optimization, I was surprised to see there wasn’t an option to go back to previous questions on the practice tests. All in all, I did find this app useful to test my knowledge in preparation for the section 608 exams but felt held back by all the outdated content.
Anyone looking for an edge on taking any level of the epa 608 needs this. I wasted money on the book, on study plans and my adhd just can’t lol. This honestly made the test a breeze, I aced it first time, thanks to this app. It’s simple which makes it perfect, easy to follow and if you get distracted easily like I do this is the app for you. The minimalistic look is what kept me from getting distracted. Use the study part to become familiarized with the questions on each section. And then use the practice tests as a way to hammer in the answers. Before you take your test, do a final practice test on each section individually. Doing that helped me, hope it helps someone else with a similar squirrel brain.
While the study questions are good, the app itself could use some help. It is not optimized to work with newer iPhones with the “dynamic island”… the back buttons barely work and need to tapped multiple times in different areas for it to be registered as a click. Some of the text is also hidden behind the “dynamic island” making it unreadable.
Prepare for your Section 608 certification exam with the most comprehensive study app available. Whether you're going for Type I, Type II, Type III, o...