# 608 Practice — user reviews > 64 indexed App Store user reviews of 608 Practice by After Hours Data Systems LLC, rated 3.90/5 from 118 ratings. - Source: https://appshunter.io/ios/app/608-practice/id1422450628/reviews - App overview in markdown: https://appshunter.io/ios/app/608-practice/id1422450628.md - Rating breakdown: 5★ 74 · 4★ 5 · 3★ 12 · 2★ 8 · 1★ 19 ## What do users think of 608 Practice? Overall sentiment: mixed **Pros** - 💯 Questions similar to test - ✅ Helped pass exam - 👍 Great study tool - 💰 Worth the price - 📚 Comprehensive content - 🎯 Accurate practice tests - 💡 Useful for focused study - 💯 High scores achieved - 📱 Great mobility - 🌟 Highly recommended **Cons** - 🐛 Outdated questions - 🐛 App bugs and glitches - 🐛 Poor optimization - 🐛 Incorrect answers provided - 🐛 Unstable performance - 🐛 Screen rotation issues - 🐛 Dynamic Island compatibility - 🐛 Unclear explanations - 🐛 Questions not on real test - 🐛 Counter-productive updates **Commonly reported bugs** - App crashes - App freezes - Screen rotation causes app to stop working - Answers marked incorrectly - App not working with iOS 13 - Cannot see or scroll to bottom of app - Questions and answers show as undefined - Answers change after moving to next question - Cannot go back during tests - Review portion of tests not fully visible **Most requested features** - Restore old version - Allow viewing all questions - Add mode for fewer questions - Shuffle questions option - Bookmark questions - Landscape mode for iPads - Explain wrong answers - Update for new regulations - Mark study progress ## Newest reviews (12 of 64) ### 3/5 — Outdated *2026-02-28, version 50* Some of the questions are outdated. The use of CFC R-13 and R-503 are no longer used . So if this type of question is in the exam this will confuse anyone. ### 3/5 — Almost Perfect *2025-05-20* 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 For starters, I saw it had older and outdated questions that aren’t in modern versions of the section 608 exam. I’m not sure how the questions are gathered but they should be up to date with modern versions and exclude content from outdated versions of the exam this app is for.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. ### 5/5 — AWESOME *2024-12-12, version 50* I GOT UNIVERSAL FROM THIS APP, MAJORITY OF THE QUESTIONS ARE ON THE TEST. 10/10 MUCH APPRECIATED. ### 5/5 — Perfect test prep *2024-07-31* 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. ### 5/5 — Answers are very similar to the ones on the test *2024-07-16* The questions are very similar or the same to the ones on the EPA test. I recognized a lot of questions. With over 500 practice questions this is the gold standard for EPA practice tests. It’s definitely worth the price. ### 5/5 — Great Practice Tests and study options! *2024-05-15* This app is definitely what got me through the test to get my AC certification. Spent 6 total hours going through the universal and type 1 questions and aced those two sections when it came test time! Would definitely like it updated to follow more in line with actual wording and add some questions that weren’t on the modern test. Well worth the $10. Please keep updating this developers! ### 5/5 — Great App *2024-01-22, version 50* Just took the exam and all I can say a lot of the questions on this app were in the exam I took. ### 3/5 — Good study questions, poorly optimized app *2023-06-12* 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. ### 5/5 — Got my Universal *2023-02-06, version 50* I used this app to help me study . It worked great I passed on the first try with an average score of 80. Also this app worked great to help me focus on the Esco study guide. If you are like me the study guide is BORING. ### 3/5 — APP KEEPS SAYING I MISSED QUESTIONS THAT ARE CORRECT *2022-02-08, version 43* Its kind of frustrating that i select one answer and then when i finish and check which ones i missed the app says i chose a different answer. please fix this ### 2/5 — not worth 10 bills *2021-10-20, version 43* Imma keep it short and simple I don’t even write reviews but this app is not worth ten dollars way too buggy and is not even an officially certified epa app I’d say its worth $0.99 thats a good price ### 4/5 — Please UPDATE *2021-09-30* The questions are great and it’s really helping me study for my test. My one complaint is in reference to the questions that other people have pointed out having the wrong answers in their reviews. The questions haven’t been fixed, and their reviews are from over a year ago…… ## Most critical reviews (10 lowest-rated) ### 1/5 — Not conducive *2026-04-09, version 57* The way the app was allowed for me to see the whole bank and retest as necessary the new bank is 3x as long and doesn’t allow me to view all questions once …. The update is counter productive. ### 1/5 — Restore the old version *2026-04-09, version 57* Now there’s more questions that not appear in the real test ### 1/5 — Bad timing for a change *2026-04-08, version 57* I think y’all should ho back to the original way it looked with CORE having only 224 questions there to many questions in the way or make a mode for only the 224 plz and thank you ### 1/5 — App is poorly designed *2025-10-15, version 50* I have been trying to study for this test and everytime I move my phone ends up rotating the screen causing the entire app to stop working and be in disarray allowing me to never finish a full test knowing what I missed ### 1/5 — Good questions but the app is filled with bugs *2024-10-02, version 50* Be prepared to not be able to go the next question or get to the last question then the app will crash leaving you not knowing what you got wrong and what you got right. Tilting the phone causes the app to freeze as well ### 1/5 — DO NOT BUY, Get the free version instead *2022-01-16, version 43* THIS IS OUTDATED. If you go to the official esco website, their practice test is way different from this. I just took the epa, and this app is seriously outdated. About 90% of the questions on this app ARE NOT on the actual epa. Yet they still want to charge you ten dollars. This is extremely lazy and unprofessional on their end. ### 1/5 — Not working *2019-09-22, version 24* I installed the app 3 times and it doesn’t work, iPhone xs max , ios 13 !!! ### 1/5 — Not worth it *2019-01-27, version 17.1* Does not function properly ### 2/5 — How do I even know you guys know your stuff *2024-07-08, version 50* Which type of refrigerant is most harmful to the stratosphere ozone? A. Ref. Containing bromine B. Ref. Containing chlorine C. Containing hydrogen D. Containing Florine You might think B. But the app says it’s a which it is not. So how do I know all the other questions are right. ### 2/5 — Good info/freezes *2022-11-18, version 50* If you lock your phone or it turns sideways the app freezes, for something that cost $9 it’s kinda insane ## Most praised reviews (10 highest-rated) ### 5/5 — Best 608 test. *2026-08-02* I used this to study for my 608 test. The questions and the answers are word for word what I seen on the test. I used this for about two weeks before taking my test and got it on the first try. I also do not leave reviews often. But I felt that this one deserved it. ### 5/5 — Yes *2026-06-08, version 64* Great practice test yes the questions are repetitive but gives you same perspective as what your gonna see on the test ### 5/5 — As good as it gets *2026-06-04* Obviously any app is gonna have its issues. Yes a couple of the thousand questions are outdated but it still gives you all the information you would need previous to taking the epa 608 exam. The app has multiple different options and levels for review and helps you out when there’s certain questions you have a lot of trouble with. ### 5/5 — Worth it! *2025-12-17* Questions were almost identical to the actual, aside from the app being a little outdated in terms of design and functionality. It is great and worth the $10 ### 5/5 — Solid app *2025-11-12, version 50* If you want to pass the test review this passed it first time ### 5/5 — Helped me pass *2025-09-07* Failed my epa 608 universal 2 times, I decided to buy this app to help me study. This app pretty much has most of the questions on the test. Just passed with a 70% just now! This app saved me ### 5/5 — EPA *2025-06-11, version 50* Helped study for the test, a lot of the questions on the study tests, thank you! ### 5/5 — Thank you and thanks for helping *2025-05-05, version 50* 🙏🙏🙏🙏 ### 5/5 — Testing *2025-05-04* The practice test they provide on the testing website has maybe 30% of the questions this app has 100% of the questions on the test I can’t push this out there enough get this app it’s so worth it ### 5/5 — This is the one *2025-05-03, version 50* Used this app alone to study for the exam and passed with 90+% on all sections. --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-03.*