Comms vs Sky
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Comms
Practice realistic air traffic control radio communications using AI and speech recognition. Build confidence with over 35 scenarios, from basic taxi instructions to complex airspace transitions. Get instant feedback on your phraseology and accuracy.
- AI-powered speech recognition
- Realistic ATC scenarios
- Instant feedback on phraseology
- Transcript review
- Practice anytime, anywhere
- Guided responses
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Master Your Radio Skills. Fly with Confidence. Practice real ATC conversations by speaking into your phone. Comms uses AI and speech recognition to simulate realistic radio exchanges — so you can build confidence before keying the mic in the cockpit. Whether you're preparing for your first solo or sharpening your skills before a checkride, Comms helps you sound like you've been on frequency for years. 35+ Realistic ATC Scenarios - Taxi clearances, progressive taxi, and runway crossings - Takeoff, pattern work, and departures from towered and non-towered fields - VFR flight following — requesting, canceling, and handoffs - Class Bravo and Charlie airspace clearances and transitions - CRAFT clearances, IFR pop-ups, and holding instructions - Approaches, go-arounds, and missed approach procedures - Landing at towered and non-towered airports - Filing PIREPs, opening/closing flight plans, and requesting diversions - VFR into IMC emergency scenarios How It Works - Listen to ATC instructions with realistic controller audio - Respond by speaking your readback out loud - Get instant feedback on accuracy and phraseology - Review your full transcript after each session Built for Student Pilots - Designed for the calls that make new pilots nervous - Practice anytime — no airplane, no instructor, no pressure - Progress from basic taxi calls to complex airspace scenarios - Guided responses help you learn correct phraseology Perfect For - Student pilots preparing for solo or checkride - Private pilot candidates building radio confidence - Flight instructors looking for a training aid - Rusty pilots getting back on frequency Download Comms and take the stress out of talking to ATC. Focus on what matters most — flying the airplane. Terms of use - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Sky
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Sky-Bound is the most complete FAA checkride prep app for student pilots and certificated aviators. Built around the FAA Airman Certification Standards (ACS), every piece of content is mapped to the exact knowledge areas you'll be tested on. CERTIFICATION TRACKS Study for 7 FAA certificates and ratings in one app: • Private Pilot (PPL) • Instrument Rating (IFR) • Commercial Pilot (CPL) • Multi-Engine (ME) • Multi-Engine Commercial (MEC) • Flight Instructor (CFI) • Instrument Flight Instructor (CFII) PRACTICE TESTS 3,768 questions across 73 test categories — rewritten for accuracy and ACS alignment. Choose from curated presets or build a custom test by category. Wrong answers link directly to the relevant study material and flashcards so you can close the gap immediately. FLASHCARDS WITH SPACED REPETITION 4,325 flashcards organized into 69 ACS-aligned categories. Our SM-2 spaced repetition algorithm schedules your reviews automatically — easy cards come back less often, harder ones more often — so you retain more with less time studying. MOCK CHECKRIDE Full oral exam simulation across all certification tracks. Exam mode with timer. Practice the real checkride experience before you sit across from a DPE. STUDY PLAN A structured Duolingo-style curriculum that walks you through each ACS area of operation in sequence. Daily sessions combine study content, flashcards, and practice questions. Spaced reviews are scheduled automatically after each completed day. STUDY CONTENT In-depth written material for every ACS area of operation across all 7 tracks — not just definitions, but the concepts behind them. Covers systems, regulations, weather, navigation, aerodynamics, and more. FAR/AIM REFERENCE 84 sections of the FARs and AIM, filtered by certification track, available offline. INTERACTIVE TOOLS • VFR Sectional chart symbols (37 symbols with tap-to-learn) • IFR En Route chart symbols (36 symbols) • METAR decoder with live weather interpretation • Holding pattern entry visualizer with animation and quiz mode • Pilot equations reference (13 equations) • Radio communications practice with ATC scenarios MISSED QUESTION BANK Every question you get wrong is automatically saved. Review your weak areas by track, filter by resolved status, and track your improvement over time. FLIGHT HOUR TRACKER Log your flight hours and automatically check your progress against Part 61 requirements for each certificate. Color-coded progress bars show exactly where you stand. Built for serious student pilots who want to pass — not just practice. see terms and conditions. http://Sky-bound.app/terms
Screenshots
Verdict
The clearest difference is iOS requirement: Comms at 15.1 against Sky's 18.2. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Comms sells 10 in-app purchases, starting at $6.99 per 7 days and Sky sells 2 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Comms | Sky |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (207 ratings) — better | — |
| Positive reviews | 35.8% of reviews | — |
| Number of ratings | 207 — better | — |
| Update frequency | Every 4 days | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 18.2 |
| Further details — not scored | ||
| Size | 67 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | KHV Digital LLC | Jeffrey Yost |
Bugs and requests
Comms
Reported bugs
3 issues- App crashes and becomes unusable after account setup
- Incompatible with latest iOS versions
- Provides incorrect information that goes against FAA guidelines
Requested features
3 requests- More detailed and comprehensive pilot scenarios
- Improved voice recognition and speech-to-text accuracy
- Better alignment with FAA instructions and procedures
Sky
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Comms
- Comms Premium Weekly2 variants$6.997 Days
- Comms Premium Monthly2 variants$14.991 Month
- Comms Premium Yearly3 Days trial$49.991 Year
Show 1 moreShow fewer
- Comms Premium Yearly3 Days trial$79.991 Year
- Study Guide Private Pilot w/Premium$9.99
- 25 Scan Credits$9.99
- Pro - Unlock All Comms$12.99
Show 3 moreShow fewer
- Study Guide Commercial Pilot$14.99
- 50 Scan Credits$14.99
- Study Guide Private Pilot$19.99
Sky
- Sky-Bound Pro Monthly$19.991 Month
- Sky-Bound Pro Yearly$119.991 Year








