Comparison

PF One vs Aviation Weather Decoder

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

Head to head
About

PF One

This aviation dictionary and pilot toolbox offers a vast database of over 20,000 aviation terms, with Chinese-English support. It features category browsing, search, airport codes, and practical tools like an interview checklist and flight time calculator. Access information offline and benefit from continuous updates.

Highlights
  • Extensive aviation database (20,000+ entries)
  • Chinese-English paired entries
  • Category filters and search
  • Airport and code reference
  • Pilot interview checklist
  • Flight time calculator
  • Offline access
Features
Read full description

Welcome to PF Tools, an aviation dictionary and pilot toolbox designed for aviation enthusiasts, student pilots, and aviation professionals. It brings together aviation terminology lookup, category-based browsing, and practical pilot tools in one app, helping you study, search, and prepare more efficiently. Key Features Extensive Aviation Database Access more than 20,000 aviation-related entries across areas such as Airbus, Boeing, NOTAM, METAR, and Airport, so you can quickly find the information you need. Chinese-English Paired Entries Browse aviation entries with Chinese and English terminology support, including Chinese titles, English full names, and explanatory notes to make technical terms and abbreviations easier to understand. Category Filters and Search Use category-based browsing and fast search to locate target entries more efficiently. Airport and Code Reference Entries Includes a large number of airport code and airport-related reference entries for everyday study and lookup. Pilot Toolbox Beyond the dictionary itself, the app also includes a Pilot Interview Checklist and a Flight Time Calculator for practical training and interview preparation scenarios. Offline Access The built-in local database allows you to browse entries even without an internet connection. Continuous Updates We continuously expand the database and improve content quality and usability. PF Tools is more than a dictionary. It is a practical companion for building aviation knowledge and improving preparation efficiency, whether you are studying for exams, organizing reference material, or preparing for interviews and real-world flying tasks. Pilot Flying focuses on pilot interview training and provides end-to-end support, from pilot license conversion to overseas pilot employment. WeChat: PilotFlyingMars Telegram: pilotflyingmars

About

Aviation Weather Decoder

Features
Read full description

Aviation Weather Decoder is a professional tool for airline pilots and aviation enthusiasts. Decode METAR, TAF, SPECI, and ATIS reports offline. Features: • Camera OCR recognition - snap a photo of printed reports, auto-extract and decode • Manual input - paste raw METAR/TAF text for instant translation • Live queries - fetch real-time METAR, TAF, NOTAM, and ATIS for airports worldwide • Supports METAR (routine weather), TAF (forecast), ATIS (terminal info), SPECI (special reports) • 100% local decoding - all decoding runs on device • History - auto-saves decode results for review • Bilingual UI - Chinese & English • Dark glass-morphism tech UI Premium subscription unlocks full decoding features: 7-day free trial, then $0.99/month auto-renewal. Terms of Use: https://777-9.com/terms.html Privacy Policy: https://777-9.com/privacy.html

Screenshots

PF One4 screens
Aviation Weather Decoder3 screens

Verdict

The call

The clearest difference is in-app purchases: PF One at none against Aviation Weather Decoder's 1. PF One also leads on iOS requirement (13.0 vs 17.0). On price, update cadence, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Aviation Weather Decoder sells 1 in-app purchase, starting at $0.99 per month. PF One asks for nothing beyond the download.

UpkeepUpdate frequency

PF One ships an update every 3 weeks, Aviation Weather Decoder every 4 weeks. The most recent releases landed on October 13, 2026 and October 6, 2026 respectively.

Scorecard2 real differences · 7 level
PF One versus Aviation Weather Decoder: the parameters behind the verdict, then further details
ParameterPF OneAviation Weather Decoder
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 3 weeks — betterEvery 4 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size29 MB8 MB
Age rating17+4+
DeveloperShenzhen Pailefei Consulting Services Co., Ltd.阳 何

In-app purchases

None

PF One

No in-app purchases

1 purchases

Aviation Weather Decoder

Subscriptions1
  • Metar Decoder Premium7 Days trial$0.991 Month

Questions

Is PF One free?
PF One is free to download, with no in-app purchases.
Is Aviation Weather Decoder free?
Aviation Weather Decoder is free to download, with in-app purchases available.
Do PF One or Aviation Weather Decoder have ads?
Neither PF One nor Aviation Weather Decoder shows ads.
Which is updated more often, PF One or Aviation Weather Decoder?
PF One ships an update every 3 weeks, and Aviation Weather Decoder every 4 weeks. Most recently, PF One was updated on October 13, 2026 and Aviation Weather Decoder on October 6, 2026.

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