Comparison

No vs FlightDose

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

No

Features
Read full description

No-ICE is the streamlined hold-over time companion built for professional pilots. Get instant access to official FAA and Transport Canada de-icing tables, track your hold-over times with precision, and stay informed from cockpit to lock screen. Whether you're operating in light freezing drizzle or heavy snow, No-ICE filters through complex hold-over time tables in seconds — so you can focus on what matters: a safe departure. OFFICIAL DATA, ALWAYS CURRENT - FAA and Transport Canada (TCA) hold-over time tables, Winter 2026-27 edition - Type I, II, III, and IV fluid coverage - All weather conditions: snow, freezing rain, freezing drizzle, frost, and more - Multiple fluid concentrations and temperature ranges PRECISION TIMER - One-tap start, pause, and resume with animated visual feedback - Elapsed time and UTC/Zulu start time displayed at a glance - Assured time (green) and Limit time (orange) calculated in real time - Automatic flaps/slats factor (0.76 reduction) when extended - Freeze timestamps to log each check during multi-step procedures LIVE ACTIVITY & DYNAMIC ISLAND - Monitor your hold-over countdown directly from the lock screen - Dynamic Island integration for at-a-glance status - Visual progress bar with color-coded assured and limit zones - Bar turns fully red when hold-over time is exceeded - All key data visible without opening the app BUILT FOR THE FLIGHT DECK - Celsius and Fahrenheit support - Smart weather filtering by precipitation type and intensity - Persistent state — resume exactly where you left off after a restart - Haptic feedback for confident, eyes-free operation - Optimized for iPhone and iPad No-ICE removes the complexity from hold-over time management. No manuals, no guesswork — just the data you need, when you need it. Safe flights start with No-ICE.

About

FlightDose

Estimates cosmic radiation exposure during flights using scientific aviation modeling. It calculates dose based on route, altitude, latitude, and solar conditions, presenting clear, data-driven insights into an invisible environmental factor.

Highlights
  • Estimates in-flight radiation dose
  • CARI-7 based modeling concepts
  • Accounts for altitude and position
  • Considers Earth's magnetic field
  • Supports route and flight estimation
  • Clear results presentation
Features
Read full description

How much radiation did your last flight expose you to? Find out... FlightDose is a scientific aviation tool for estimating exposure to cosmic radiation during flight, based on established aerospace radiation modeling principles. At its core, FlightDose leverages methodologies derived from CARI-7, a widely recognized aviation radiation dose model developed for analyzing radiation exposure at altitude. By combining route geometry with altitude, latitude, geomagnetic shielding, and solar conditions, FlightDose provides informed estimates of in-flight radiation dose in a clear, modern interface. Cosmic radiation increases rapidly at cruising altitudes and varies significantly by latitude and flight path. FlightDose makes this invisible environmental factor understandable using real aviation physics and data-driven calculations. What FlightDose does • Estimates in-flight radiation dose using CARI-7–based modeling concepts • Accounts for altitude, geographic position, and Earth’s magnetic field • Supports route-based and flight-based dose estimation • Presents results clearly without unnecessary complexity Who it’s for • Pilots and aircrew • Frequent flyers • Aviation professionals and students • Engineers, researchers, and science-focused travelers • Anyone curious about estimating radiation dose during flights Important information FlightDose is provided for informational and educational purposes only. It is not endorsed by the FAA and does not provide medical advice, diagnosis, or risk assessment. All dose values are estimates and should not be used for clinical, regulatory, or occupational decision-making. FlightDose Premium is available as an auto-renewing subscription: • Monthly: $4.99/month • Annual: $49.99/year Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple Account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ FlightDose Terms of Service: https://apextechnologygroup.io/policies/flightdoseTOS.html Privacy Policy: https://apextechnologygroup.io/policies/flightdose.html

Screenshots

No2 screens
FlightDose4 screens

Verdict

The call

The clearest difference is price: FlightDose at Free against No's $2.99. FlightDose also leads on update cadence (every 4 days vs every 6 months). No's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

FlightDose is free to download; No costs $2.99 up front. FlightDose sells 1 one-off in-app purchase. No asks for nothing beyond the download.

UpkeepUpdate frequency

No ships an update every 6 months, FlightDose every 4 days. The most recent releases landed on September 19, 2026 and September 20, 2026 respectively.

Scorecard4 real differences · 6 level
No versus FlightDose: the parameters behind the verdict, then further details
ParameterNoFlightDose
Price$2.99Free — better
Rating—5.0 (7 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—7 — better
Update frequencyEvery 6 monthsEvery 4 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size8 MB14 MB
Age rating4+12+
DeveloperPhilippe Le GallApex Technology Group, Inc

In-app purchases

None

No

No in-app purchases

1 purchases

FlightDose

One-time1
  • Remve Ads$2.99

Questions

Is No free?
No costs $2.99, with no in-app purchases.
Is FlightDose free?
FlightDose is free to download, with in-app purchases available.
Do No or FlightDose have ads?
FlightDose shows ads; No does not.
Which is updated more often, No or FlightDose?
No ships an update every 6 months, and FlightDose every 4 days. Most recently, No was updated on September 19, 2026 and FlightDose on September 20, 2026.

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