F-Gas Pro - Certification Exam

The complete F-gas exam prep and HVAC/R toolkit. Two exams in one app: the UK F-gas categories I–IV, and the new EU certificate A1. 550+ exam-style questions across both exams, 12 professional calculators, equipment compliance tracking and experience hour logging, with iCloud sync across your devices.

Whether you're preparing for your F-gas certification, working as an HVAC/R engineer, or logging apprentice hours, F-Gas Pro is your essential companion.

EXAM PREP — CHOOSE YOUR EXAM

UK edition (categories I, II, III and IV), based on the F-gas Regulation (EU) No 517/2014 as retained in Great Britain. 463 questions across 12 study groups:
1. Thermodynamics and the refrigeration cycle
2. Environmental regulations and F-gas handling requirements
3. Pre-operational checks and system commissioning
4. Leak detection methods and equipment
5. Refrigerant handling, recovery and recycling
6. Compressors
7. Condensers
8. Evaporators
9. Expansion valves
10. Pipework and system components
11. Alternative refrigerants and low-GWP solutions
12. Health and safety in refrigeration work

EU edition (certificate A1), based on Regulation (EU) 2024/573 and Implementing Regulation (EU) 2024/2215. 542 questions across 15 topics, adding EU F-gas law, flammable refrigerants (A2L and A3), and CO₂, ammonia and energy efficiency. Available in English, German, French, Italian, Polish and Spanish. Northern Ireland follows the EU F-gas rules, so technicians there should choose the EU edition.

Each answer includes a detailed explanation.
- Mock exams to simulate real test conditions.
- Flash cards for quick revision.
- Progress tracking with visual charts, kept separately for each exam.
- Read-aloud questions and answers.

12 HVAC/R CALCULATORS

Professional tools for the field. The regulatory calculators follow the rules of the exam you chose (GB or EU):
- CO₂ Equivalent & GWP Lookup with ban dates
- Leak Check Frequency
- Annual Leak Rate
- Superheat & Subcooling
- PT Chart Lookup
- COP / EER (EN 14511)
- TEWI (EN 378)
- Charge Limit (EN 378)
- Recovery Cylinder Fill (BS EN 13322)
- Refrigerant Record Log

Every calculator includes PDF export, reset, and report error. Inputs persist when switching between calculators.

EQUIPMENT LOGBOOK

F-gas compliance made simple:
- Track all refrigeration equipment with charge, refrigerant type and location.
- Smart autocomplete for equipment names, locations and technicians.
- Automatic CO₂ equivalent calculation and leak check scheduling.
- Service record tracking (additions, recoveries, leak checks).
- Status indicators: green (OK), orange (due soon), red (overdue).
- Export full equipment reports to PDF.

EXPERIENCE LOG

Track your apprentice or trainee hours:
- Log hours across 10 F-gas skill categories (Leak Testing, Recovery & Recycling, Charging Systems, Brazing & Pipework, and more).
- Smart autocomplete for supervisor names.
- Visual progress ring showing hours completed vs target.
- Category breakdown with progress bars.
- Set custom target hours for your qualification.
- Export experience reports to PDF.

iCLOUD SYNC

Equipment logs, experience logs, settings and favourites sync via iCloud across all your devices.

MADE FOR iPHONE DUO

Open your iPhone Duo to see each question beside its explanation, your score beside the question grid, and the calculators listed beside the one you're using.

F-Gas Pro is an independent study aid. It is not affiliated with any certification body.

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