FlightDeck vs TDY Slayer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FlightDeck
This app provides real-time flight tracking with AI-generated insights, offering context beyond raw data. It highlights notable aircraft, weather conditions, and airport details, with customizable alerts and emergency detection.
- Real-time flight tracking map
- AI-generated flight briefs
- Notable aircraft spotting
- Weather intelligence overlays
- Detailed airport information
- Customizable flight alerts
- Emergency squawk detection
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Every plane in the sky. Every cockpit message. Every emergency, the second it happens. FlightDeck plugs into the same live feeds airlines and ATC run on and turns them into plain English. PILOT MESSAGES (ACARS) The digital messages pilots and dispatchers send worldwide, decoded live the moment they go out. Diversions, emergencies, mechanical issues, and the occasional cockpit humor. No other app shows you this. TRACK YOUR FLIGHT Follow any flight on your Lock Screen with real ATC-grade detail: IFR clearance, pushback, the exact runways it uses, even the inbound jet that becomes your flight. EVERYTHING ELSE Live weather radar, turbulence and pilot reports, D-ATIS, METARs, and plain-English NOTAMs. FAA ground stops and delays, active runways, gates, TSA waits, and approach charts. Emergency squawks are for military and government aircraft, and custom alerts you write in plain English. SUBSCRIPTION FlightDeck requires a subscription to use. We offer a weekly or yearly subscribtion. Privacy Policy: https://www.tryflightdeck.com/privacy Terms of Use: https://www.tryflightdeck.com/terms
TDY Slayer
Effortlessly convert travel receipts into a ready-to-file DTS voucher. This app automatically reads receipt details like type, amount, and dates, organizing them for government travel. Simplify your reimbursement process by turning a complex task into a straightforward checklist.
- Automatic receipt reading
- Organizes expenses by trip
- Per diem lookup
- Export receipts for DTS
- Smart expense advisories
- Voucher audit
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Turn TDY receipts into organized DTS voucher prep. Scan hotel folios, airfare, and other travel receipts, review your expenses, and export your receipts for DTS. Upgrade to Pro for missing-expense advisories and a guided voucher-entry checklist. BUILT FOR MILITARY TRAVEL Made for U.S. service members and DoD civilians traveling on TDY or TAD orders. TDY Slayer helps prepare your Defense Travel System (DTS) voucher. You review the details and submit it yourself in DTS. FREE • Capture receipts with your camera, photo library, or files, or share a PDF into the app • Read receipt amounts, dates, taxes, ticket numbers, and full hotel folios automatically • Keep receipts organized by trip • View lodging and meals and incidental expenses (M&IE) rates for your itinerary • Export a receipt package for DTS • Look up per diem rates by location TDY SLAYER PRO • Review advisories that flag possible missing expenses • Organize claimable expenses into DTS expense categories • Prepare a voucher summary and follow a guided DTS entry checklist • Audit past vouchers for possible missed expenses to consider for an amendment YOUR DATA Your trips and receipt library are stored on your iPhone. Receipt scanning and voucher audits use cloud AI processing; documents are stored briefly for processing and deleted afterward. Sign in with Apple handles account access. See our Privacy Policy for details on processing, analytics, and subscriptions. TDY Slayer is an independent travel-preparation app. It does not connect to DTS or other government systems. SUBSCRIPTION TDY Slayer Pro is an auto-renewable subscription offered as a monthly or annual plan. The price is shown in the app before purchase and is charged to your Apple Account at confirmation. It renews automatically unless canceled at least 24 hours before the period ends. Manage or cancel anytime in your Apple Account settings. Terms of Use (EULA): https://tdyslayer.com/terms Privacy Policy: https://tdyslayer.com/privacy
Screenshots
Verdict
The clearest difference is review sentiment: TDY Slayer at 100% against FlightDeck's 18%. TDY Slayer also leads on monetization model (freemium vs subscription) and ads (none vs shown). FlightDeck's advantage is ratings volume (1.1K vs 4) and chart position (#39 vs unranked). On price, update cadence, 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. FlightDeck sells 6 in-app purchases, starting at $6.99 per 7 days and TDY Slayer sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
TDY Slayer holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: FlightDeck has 1.1K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 18% of FlightDeck's written reviews are positive against 100% of TDY Slayer's.
FlightDeck ships an update every 4 days, TDY Slayer every 3 days. The most recent releases landed on October 19, 2026 and October 10, 2026 respectively.
| Parameter | FlightDeck | TDY Slayer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (1.1K ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 18.1% of reviews | 100.0% of reviews — better |
| Number of ratings | 1.1K — better | 4 |
| Update frequency | Every 4 days | Every 3 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Subscription | Freemium — better |
| Best chart rank | #39 — better | — |
| Devices | iPhone | iPhone |
| Requires iOS | 18.0 | 18.0 |
| Further details — not scored | ||
| Size | 139 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | JAC LLC | Southwind Digital LLC |
Customer experience
FlightDeck
TDY Slayer
In-app purchases
FlightDeck
- FlightDeck Pro$6.997 Days
- FlightDeck Pro$12.997 Days
- FlightDeck Pro$19.991 Month
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- FlightDeck Pro$49.991 Year
- FlightDeck Pro3 Days trial$49.991 Year
- FlightDeck Pro3 Days trial$69.991 Year
TDY Slayer
- TDY Slayer Pro (Monthly)$4.991 Month
- TDY Slayer Pro (Yearly)$39.991 Year









