{"app_store_id":1313483156,"slug":"official-cdl-test-prep-iowa-1313483156","name":"Official CDL Test Prep: Iowa","subtitle":"DOT Manual & Exam Questions","icon_url":"https://is1-ssl.mzstatic.com/image/thumb/Purple122/v4/0d/66/25/0d662567-42c3-f2b4-31ee-69562fa73d64/AppIcon-1x_U007emarketing-0-7-0-85-220.png/512x512bb.jpg","store_url":"https://apps.apple.com/us/app/official-cdl-test-prep-iowa/id1313483156?uo=4","price":0,"currency":"USD","rating":4.4976,"rating_count":2703,"in_app_purchases":true,"recent_rating":null,"recent_review_count":null,"reviews_checked_at":null,"primary_genre":"Education","version_date":"2022-11-17T18:14:00Z","updated_at":"2026-10-20T17:43:13.657Z","stale":false,"missing_since":null,"one_liner":"Free study app with 600+ exam-style questions and the complete Iowa CDL Manual for the Iowa commercial driver's license.","verified_maker":false,"maker_site":null,"file_size_bytes":91563008,"minimum_os":"14.0","content_rating":"4+","language_count":1,"screenshots":["https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/5a/5e/45/5a5e458d-2671-1984-66b0-1a3150436644/7901cb3c-78a0-48e1-9ee3-d32dbe620c27_AppStore-iPhone5.5_inch-1.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/84/ee/41/84ee418f-bbf1-c824-fafb-8d56c580a1d0/5ce1c6f1-4f72-42bf-8de2-ed9e4449e95a_AppStore-iPhone5.5_inch_-_2.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/c8/fd/ea/c8fdea57-c25a-de75-7b89-0936721cb47a/a3b8e543-17de-4d70-8865-0940925d5fdb_AppStore-iPhone5.5_inch_-_3.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource126/v4/c8/bb/2e/c8bb2e71-e570-e02d-c7c4-5e150a893690/285384fc-4996-4954-89f2-55151c504c7c_AppStore-iPhone5.5_inch_-_4.jpg/392x696bb.jpg","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource116/v4/5d/6c/49/5d6c498c-9bc3-c31c-4ce7-c475278096d5/270749ce-f81c-49aa-93ef-3d86ccc5ce12_AppStore-iPhone5.5_inch_-_5.jpg/392x696bb.jpg"],"developer_name":"Higher Learning Technologies, Inc.","editors_choice":false,"url":"https://apptierlist.com/apps/official-cdl-test-prep-iowa-1313483156/","api_url":"https://apptierlist.com/api/v1/apps/official-cdl-test-prep-iowa-1313483156","schema_version":"1.0","generated_at":"2026-10-22T05:58:25.123Z","data_as_of":"2026-10-22T05:30:13.485Z","description":"Pass your Iowa CDL with the OFFICIAL app. Gain the confidence you need to PASS THE FIRST TIME! Save time and study smarter with a tool designed for your busy life.\n\nCreated in partnership with the Iowa DOT and AAMVA,, the Official CDL Test Prep app has EVERYTHING YOU NEED to be successful on your Iowa Commercial Drivers License (CDL) test.\n\nWith over 600 exam-like questions, access to the complete CDL Manual, the CDL Test Prep App helps you get the score you need. Spanning every stage of a CDL professional's career, from pre-licensing and your initial license to driving combinations, hazardous materials, school buses, and more, CDL Test Prep offers a comprehensive review of critical material.\n\n---\nPRACTICE QUESTIONS LIKE YOU’LL SEE ON THE CDL EXAM: \n---\n• Answer our 600+ exam-like questions\n• Detailed explanations of all answers\n• Developed by experts\n• Helps with your pre trip inspection\n\n---\nTHE OFFICIAL IOWA CDL APP HAS MORE QUESTIONS, QUIZZES, & METHODS OF STUDY\n---\n• 40+ must-know definitions\n• Dozens of tips and strategies to help you pass\n• Created in partnership with the Iowa DOT and AAMVA\n\n---\nINCLUDES COMPLETE CDL MANUAL\n---\n• Includes the complete Iowa CDL Manual\n• Access to all 13 chapters\n• Corresponds with the American Association of Motor Vehicle Administrators (AAMVA) manual\n\nPASS YOUR EXAM THE FIRST TIME! \n\nGet access to all questions when you subscribe to one of our auto-renewing subscriptions: \n• Monthly payment of $4.99\n• Yearly payment of $19.99\n\n-Payment will be charged to iTunes Account at confirmation of purchase\n-Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period\n-Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal\n-Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase\n-Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable\n-These prices are for United States customers. Pricing in other countries may vary and actual charges may be converted to your local currency depending on the country of residence.\n\nPrivacy Policy - http://builtbyhlt.com/privacy\n\nTerms of Conditions - http://builtbyhlt.com/EULA\n\nFor any HELP email us at: support@hltcorp.com or call 319-237-7162","facts":{"developer_id":571804544,"developer_url":"http://www.builtbyhlt.com","first_released":"2017-12-03T02:47:17Z","support_url":"http://builtbyhlt.com/","privacy_url":"http://builtbyhlt.com/Privacy","website_url":"http://www.builtbyhlt.com/","app_version":"8.102.10743","release_notes":"This version includes a few improvements to make your experience smoother.  \n\nLet us know what you think by emailing us at feedback@hltcorp.com or by leaving a 5-star review.","rating_current_version":4.4976,"rating_count_current_version":2703,"star_counts":[188,37,106,283,2089],"genres":["Education","Reference"],"languages":["EN"],"content_advisories":null,"device_families":["iphone","ipad","ipod"],"chart":null},"freshness":{"apple_read_at":"2026-10-20T17:43:13.657Z","catalog_read_at":"2026-10-20T17:43:13.657Z","reviews_checked_at":null,"summary_written_at":"2026-10-20T21:20:12.755Z","placed_at":"2026-10-19T06:33:11.723Z","scored_at":"2026-10-22T05:30:13.485Z"},"editorial":{"one_liner":"Free study app with 600+ exam-style questions and the complete Iowa CDL Manual for the Iowa commercial driver's license.","what_is":"Official CDL Test Prep: Iowa is an education app for people preparing for the Iowa Commercial Drivers License test. It was created in partnership with the Iowa DOT and AAMVA, and includes over 600 exam-like questions with detailed answer explanations. It also gives access to the complete Iowa CDL Manual across 13 chapters, plus 40+ definitions and study tips.","good_for":["Practicing for the Iowa CDL written exam","Reviewing the complete Iowa CDL Manual by chapter","Studying pre-trip inspection and hazardous materials topics"],"pricing":"Official CDL Test Prep: Iowa is free to download, with in-app purchases on the App Store.","faq":[{"q":"Is the app free to use?","a":"The app is free to download. The listing says access to all questions requires an auto-renewing subscription: $4.99 monthly or $19.99 yearly for US customers."},{"q":"Who created the app?","a":"It was created in partnership with the Iowa DOT and AAMVA. It also says the manual corresponds with the AAMVA manual."},{"q":"What study material is included?","a":"The listing states 600+ exam-like questions with detailed explanations, the complete Iowa CDL Manual with all 13 chapters, 40+ must-know definitions, and tips and strategies for passing."}],"model":"claude-haiku-5-5","created_at":"2026-10-20T21:20:12.755Z"},"memberships":[{"list":"cdl-test-prep","list_name":"cdl test prep","list_status":"active","list_url":"https://apptierlist.com/best/cdl-test-prep/","position":20,"tier":"C","score":61.1,"components":{"rating":80.9,"votes":74.3,"rank":89,"recency":0},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"normal","judged_at":"2026-10-19T06:33:11.723Z"},{"list":"exam-preparation","list_name":"exam preparation","list_status":"active","list_url":"https://apptierlist.com/best/exam-preparation/","position":142,"tier":null,"score":38.8,"components":{"rating":80.9,"votes":74.3,"rank":0,"recency":0},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"provisional","judged_at":"2026-10-19T06:33:11.723Z"}],"main_list":"cdl-test-prep","claim":{"status":"none","verified":false,"site_url":null,"verified_via":null,"verified_domain":null},"history":[{"id":186630,"at":"2026-10-20T21:37:12.981Z","kind":"tier_changed","list":"cdl-test-prep","app_store_id":1313483156,"app":"official-cdl-test-prep-iowa-1313483156","from":"F","to":"C","reason":"score 38.8 to 61.1","job":"rescore"},{"id":171757,"at":"2026-10-19T06:41:11.821Z","kind":"tier_changed","list":"cdl-test-prep","app_store_id":1313483156,"app":"official-cdl-test-prep-iowa-1313483156","from":null,"to":"F","reason":"score 38.8","job":"rescore"},{"id":171439,"at":"2026-10-19T06:33:11.723Z","kind":"membership_added","list":"exam-preparation","app_store_id":1313483156,"app":"official-cdl-test-prep-iowa-1313483156","from":null,"to":"active","reason":"Built to prepare for a specific exam (the Iowa CDL test) through practice questions, quizzes and review material.","job":"shadow"},{"id":171438,"at":"2026-10-19T06:33:11.723Z","kind":"membership_added","list":"cdl-test-prep","app_store_id":1313483156,"app":"official-cdl-test-prep-iowa-1313483156","from":null,"to":"active","reason":"Official Iowa CDL app with 600+ exam-like questions, explanations and the full CDL manual to pass the CDL knowledge test.","job":"shadow"},{"id":166851,"at":"2026-10-19T03:03:11.597Z","kind":"app_added","list":null,"app_store_id":1313483156,"app":"official-cdl-test-prep-iowa-1313483156","from":null,"to":null,"reason":"discovered","job":"import"}],"explain":{"method":"Membership is decided by a model judging the App Store listing against the list's definition (and its excludes, for memberships placed or rechecked since they were added to the prompt); every verdict is listed with its date; the score is a plain average of the public components an app has (four, plus Apple's Editors' Choice badge as 100 where shown); nothing is purchasable.","lists":[{"list":"cdl-test-prep","list_name":"cdl test prep","status":"active","review_status":"checked","position":20,"tier":"C","score":61.1,"components":{"rating":80.9,"votes":74.3,"rank":89,"recency":0},"ranks":[{"country":"gb","rank":11},{"country":"ca","rank":12},{"country":"us","rank":13},{"country":"de","rank":12},{"country":"au","rank":12}],"verdicts":[{"verdict":"keep","reason":"Official Iowa CDL app with 600+ exam-like questions, explanations and the full CDL manual to pass the CDL knowledge test.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-19T06:33:11.723Z","attempts":1,"current":true},{"verdict":"keep","reason":"Its whole purpose is preparing for the Iowa CDL knowledge tests, with 600+ practice questions and the CDL manual.","verifier":"list check","decided_at":"2026-10-19T06:33:11.723Z","attempts":1,"current":true}]},{"list":"exam-preparation","list_name":"exam preparation","status":"active","review_status":"checked","position":142,"tier":null,"score":38.8,"components":{"rating":80.9,"votes":74.3,"rank":0,"recency":0},"ranks":[],"verdicts":[{"verdict":"keep","reason":"Built to prepare for a specific exam (the Iowa CDL test) through practice questions, quizzes and review material.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-19T06:33:11.723Z","attempts":1,"current":true},{"verdict":"keep","reason":"It prepares users for a specific exam, the CDL test, through practice questions and review of the tested material. 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