# Propwash: Part 107 Drone Prep — Remote Pilot Knowledge Test > Remote Pilot Knowledge Test (iPhone/iPad app by Tom Nguyen.) - Source: https://appshunter.io/ios/app/propwash-part-107-drone-prep/id6826048880 (this page in markdown: same URL + `.md`) - Developer: [Tom Nguyen](https://appshunter.io/developer/6794241547) - Category: Education, Reference - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 17.0 · 26 MB - Languages: American English - Released: 2026-10-27 - Data updated: 2026-11-10 ## What is Propwash? Propwash (formerly Cleared) gets you ready for the Part 107 remote pilot knowledge test, ten minutes at a time. WOULD YOU PASS TODAY? The readiness ring answers that at a glance. It is drawn like the test itself: five sectors, one for each knowledge area, each sized inside the share of the test the ACS gives that area. The color fills as you learn, and an engraved tick marks the 70% pass line. When the color reaches the tick, your projected score would pass. MORE THAN 700 PRACTICE QUESTIONS - Questions across all five areas of the Airman Certification Standards: regulations, airspace, weather, loading and performance, and operations, including Remote ID and operations over people. - Figure questions that ask you to read sectional charts and other figures from the airman knowledge testing supplement. - Every answer is explained and names the document and section it comes from. - Spaced repetition brings questions back on a schedule, so the ones you know well show up less often. - Questions you miss wait in their own review list until you get them right. A FULL MOCK EXAM 60 questions and 120 minutes, with each area weighted inside the ranges the ACS publishes. Flag a question and come back to it, check the review grid before you submit, then see your score against the 42-of-60 pass line, area by area, and go straight to the questions you missed. One full mock exam is included. PROPWASH PRO A one-time purchase, not a subscription. Pro unlocks unlimited mock exams and keeps your exam history so you can follow your scores over time. It is shared with your family through Family Sharing. Practice, the readiness ring and missed-question review are never locked. PRIVATE BY DESIGN No account and no sign-in. No analytics and no ads. Your progress stays on your iPhone, and practice and mock exams work offline. WHERE THE QUESTIONS COME FROM Every question is written from public FAA documents: the Remote Pilot Airman Certification Standards (FAA-S-ACS-10B), the Remote Pilot Study Guide (FAA-G-8082-22), Advisory Circular 107-2A, 14 CFR parts 107 and 89, and the figures of the Airman Knowledge Testing Supplement (FAA-CT-8080-2H). Propwash is independent study material and is not affiliated with or endorsed by the FAA. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Propwash Pro | $4.99 | one-time | ## Is Propwash safe? Not enough ratings yet to assess Propwash. ## Is Propwash legit? Propwash: Part 107 Drone Prep appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Propwash is 65 out of 100 points across 7 verification signals from App Store and developer data. ## Version history (last 5 releases) ### 1.4.3 — 2026-11-07 At the largest text sizes, some answer values no longer push the page off the side of the screen. A value like "2.4 GHz and 5.8 GHz" now wraps instead of running past the edge. In the diagrams, the fact you were asked is now the largest text on the card, and the other facts sit a step smaller. When the asked fact is part of a list, its label and value read as one sentence. Small wording fixes in the diagrams: a few rows that were split in two now read as one sentence, apostrophes are consistent, and the list of other source documents under each diagram is one short line (tap "more facts" or "All sources" to see the sections). ### 1.4.2 — 2026-11-06 Diagram facts read as whole sentences. Rows whose label stopped mid-sentence now join into one line, and long values sit in body weight so the key figure stands out. Your warm-up ring counts every answer you have given, not just this session's, so the summary matches Home. The area gauge sits under your verdict after you answer, and a score that rounds to zero reads "under 1%" instead of "0%" beside a drawn arc. Source citations now point to the exact Advisory Circular section that holds the whole passage. ### 1.4.1 — 2026-11-04 Corrected questions. Two NOTAM questions now point to where pilots get NOTAMs today: Flight Service Stations and NOTAM Search. Twenty-one explanations now cite the exact paragraph of the advisory circular they come from. Smoother scrolling after you answer. The screen now stops on a whole line instead of cutting one in half, and text fades gently under the Next button. Small polish in the tour and the diagrams: your ring shows each answer you have given before your first projected score, and checklist and legend lines read more cleanly at large text sizes. ### 1.4 — 2026-11-03 A short tour for new pilots. The first time you open Propwash, three cards show what the knowledge test is, what your readiness ring means and where every answer comes from, then you try one real question with tips along the way. Skip it any time, or replay it from Settings. A drawn diagram on every question that has no testing-supplement figure. New diagrams cover getting your certificate, drugs and alcohol, accident reports, waivers, operations over people, preflight checks, maintenance, crew roles, radio links and batteries, wind over terrain, NOTAMs, weather sources and more, each fact quoted from its FAA source. After you answer, the screen scrolls to the diagram, and many questions mark the line that answers them. More to look at and more ways in. Home opens with a drone scene and a line about your day, four quick starts (mixed practice, the mock exam, missed questions and a new Figures gallery) and a scene for each knowledge area. Each practice session opens with its area's scene. You can now start over. In a practice session, the menu at the top restarts the session or ends it early with a summary. After a session, Practice again starts a fresh set. In a mock exam, the review grid has Restart exam. With Propwash Pro you can restart as often as you want; the free mock exam stays one sitting. ### 1.3 — 2026-11-02 Cleared is now Propwash: new name, new icon, same app, same Pro unlock and your progress. Also: mock-exam results keep "42 of 60" on one line, a pass now says how far above the pass line you scored, and a failed result gives its area breakdown more room above the button. Buttons with longer labels center every line at large text sizes. ## More apps by Tom Nguyen - [Emberlock: Study App Blocker](https://appshunter.io/ios/app/emberlock-study-app-blocker/id6794241545) - [Spoolworth: 3D Print Profit](https://appshunter.io/ios/app/spoolworth-3d-print-profit/id6801032289) - [Know Your Plays: Playbook Quiz](https://appshunter.io/ios/app/know-your-plays-playbook-quiz/id6801041624) - [PowDay: WA Snow & Pass Report](https://appshunter.io/ios/app/powday-wa-snow-and-pass-report/id6804465141) All apps by Tom Nguyen: https://appshunter.io/developer/6794241547 --- *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 2026-11-10.*