Comparison

SNOWTAMS vs B777 Tools

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

Head to head
About

SNOWTAMS

This app decodes SNOWTAM and METAR messages for aviation professionals, providing real-time runway condition data and ICAO-compliant GRF information. It offers manual decoding for free, with Pro features for live fetching, guided input, and templates.

Highlights
  • Manual SNOWTAM decoding
  • Live SNOWTAM fetching
  • METAR weather display
  • Guided SNOWTAM input
  • Template library
  • Airport database
  • Offline GRF tables
Features
Read full description

Snowtams is the professional-grade SNOWTAM and METAR decoder built for pilots, dispatchers, and aviation professionals. Stay ahead of winter runway conditions with real-time data and ICAO-compliant Global Reporting Format (GRF) decoding. == FEATURES == • MANUAL DECODER (FREE) Paste any SNOWTAM message for instant decoding. The core decoder is completely free for all users. Smart Fix feature identifies and corrects common formatting errors automatically. • LIVE SNOWTAM FETCHING (PRO) Instantly retrieve and decode active SNOWTAMs from aviationweather.gov. Get runway condition codes (RCC), contaminant types, depth measurements, and coverage percentages formatted to ICAO standards. • CURRENT METAR WEATHER (PRO) View real-time METAR data including temperature, dew point, wind direction/speed, and visibility. Displayed alongside runway conditions for complete situational awareness. • GUIDED INPUT MODE (PRO) Build SNOWTAMs step-by-step with our intuitive form. Select airport, runway, RCC values, contaminants, coverage, and depth. Perfect for training or generating reports. • TEMPLATE LIBRARY (PRO) Quickly generate common scenarios: Dry Runway, Wet Runway, Snow Covered, Icy Conditions, Slush, Frost, and more. Customize coverage and depth values per ICAO Item E and Item F requirements. • COMPREHENSIVE AIRPORT DATABASE (FREE) Access 50,000+ airports worldwide with runway details including length, width, surface type, and headings. View airport locations on interactive maps. • OFFLINE REFERENCE (FREE) Complete GRF tables, contaminant codes, RCC values, and RCAM (Runway Condition Assessment Matrix) available offline. Essential reference material always at your fingertips. • HISTORY STORAGE (FREE) All decoded SNOWTAMs saved with timestamp and airport. Search by ICAO, date, or condition severity. • DARK MODE SUPPORT Optimized for both day and night operations with automatic dark/light mode switching. • METRIC AND IMPERIAL UNITS Choose your preferred measurement system. Temperature, distance, and elevation display in your chosen units. == ICAO COMPLIANT == Snowtams fully supports the ICAO Global Reporting Format (GRF) with: - Runway Condition Codes (RCC) 0-6 - Condition descriptions: DRY, FROST, WET, WET SNOW, DRY SNOW, COMPACTED SNOW, SLUSH, ICE, WET ICE, STANDING WATER - Coverage percentages: NR, 25, 50, 75, 100 - Depth reporting: NR, 03, 06, 12 (mm) == PERFECT FOR == - Airline and corporate pilots - Flight dispatchers and operations - GA pilots flying in winter conditions - Aviation students and instructors - Airport operations personnel - Aviation enthusiasts == SUBSCRIPTION == Snowtams Pro unlocks Guided Input, Templates, Live SNOWTAM Fetching, and METAR Weather. Choose monthly ($0.99), yearly ($7.99 - save 33%), or lifetime ($31.99 - one-time payment, own forever). Payment charged to Apple ID. Subscriptions auto-renew unless canceled 24 hours before period ends. Manage in Settings. == PRIVACY == No account required. Your data stays on your device. We never collect or sell your information. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Download Snowtams today and decode winter runway conditions with confidence.

About

B777 Tools

Features
Read full description

B777 Tools is a personal study aid for a closed group of 777-300ER freighter crews: ask for access in the app, and it opens once your request is approved. Everything works offline except the live data. Large text and a dark appearance for the flight deck; on iPad, a sidebar with large maps. TODAY • UTC clock, today's NAT tracks, SIGMETs and space weather at a glance • Weather category at your airports and the EASA conflict zone bulletins in force • Alerts for today only, crew reports from the group, and your favourite tools FLIGHT • Route Check: open or share the flight plan PDF — the route on the map, the SIGMETs, conflict zones, turbulence and space weather along it, EDTO entry, ETP and exit with the alternates' weather, advisories for the countries crossed and a short summary • Weather Check: the TAF at each aerodrome for the time you will be there, against the planning minima • ETOPS / EDTO map: diversion circles, arrival windows and alternate weather • Escape routes for L888 and Y1 by segment • Weather map: SIGMETs and METARs for the North Atlantic, Europe, the Middle East, Asia or the world • Airport weather and NOTAMs; runways with head- and crosswind, D-ATIS for US airports, crew notes and crew reports • Conflict zone bulletins on a map, NAT tracks, oceanic FIR NOTAMs, aircraft reports, space weather • Decoder: any METAR, TAF, SIGMET, NOTAM or FICON in plain words CALC • Maximum fuel available, second-stage fuel and landing weight, with checks against the limits • Fuel conversion with density and uplift; unit converter; time calculator • Wind components with magnetic or true references, descent, cold-temperature correction, ETP and PNR, CAS · Mach · TAS, pressure and density altitude COMMS • ATC to Text: controller transmissions written down on the device, with the matching standard phrase and reply • ICAO phraseology by phase of flight, with the pilot replies • CPDLC: every message, its meaning and the reply it needs; failure and correction procedures • Emergencies and contingencies, SLOP and incident reports • NAT HLA step by step, with weather deviation and contingency tools LIBRARY • More than 500 questions on the aircraft and its procedures, EICAS message trainer, memory item drills • Aircraft and operations topics, airport briefings, weather and codes, operational reference • Interactive FMA, simulator scenarios, brake cooling • A user guide for every tab and tool IMPORTANT B777 Tools is a study aid. It is not approved documentation and it is not for operational use. The approved manuals, charts, NOTAMs and company instructions always take precedence. It is not produced or endorsed by any aircraft manufacturer, chart provider, authority or operator.

Screenshots

SNOWTAMS4 screens
B777 Tools4 screens

Verdict

The call

The clearest difference is in-app purchases: B777 Tools at none against SNOWTAMS's 2. B777 Tools also leads on update cadence (daily vs every 4 days). On price, ads, 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

Both are free to download. SNOWTAMS sells 2 in-app purchases, starting at $0.99 per month. B777 Tools asks for nothing beyond the download.

UpkeepUpdate frequency

SNOWTAMS ships an update every 4 days, B777 Tools daily. The most recent releases landed on October 9, 2026 and October 29, 2026 respectively.

Scorecard2 real differences · 7 level
SNOWTAMS versus B777 Tools: the parameters behind the verdict, then further details
ParameterSNOWTAMSB777 Tools
PriceFreeFree
Rating1.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 4 daysDaily — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.617.0 — better
Further details — not scored
Size18 MB7 MB
Age rating4+4+
DeveloperMohamed FarhadiJoao Reguengos

In-app purchases

2 purchases

SNOWTAMS

Subscriptions2
  • SNOWTAMS Pro$0.991 Month
  • SNOWTAMS Pro$6.991 Year
None

B777 Tools

No in-app purchases

Questions

Is SNOWTAMS free?
SNOWTAMS is free to download, with in-app purchases available.
Is B777 Tools free?
B777 Tools is free to download, with no in-app purchases.
Do SNOWTAMS or B777 Tools have ads?
Neither SNOWTAMS nor B777 Tools shows ads.
Which is updated more often, SNOWTAMS or B777 Tools?
SNOWTAMS ships an update every 4 days, and B777 Tools daily. Most recently, SNOWTAMS was updated on October 9, 2026 and B777 Tools on October 29, 2026.

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