kandyb studio
Portfolio · Case study 02

PFE Coach

A modern study app for USAF airmen preparing for the Promotion Fitness Examination.

iOS · TestFlight Android · closed beta Beta 1.0.0+4 FSRS-4.5 Offline-first
Question 4 / 12 A · Spaced repetition B · Cramming C · Re-reading
Get the app: Google Play App Store

About

PFE Coach helps US Air Force airmen prepare for the Promotion Fitness Examination — a key part of the WAPS promotions system. The app bundles the full text of Air Force Handbook 1, 650+ exam-aligned questions, 28 SJT scenarios and a "nuggets" mode for fast review.

The core is an FSRS-4.5 spaced repetition scheduler — a scientifically validated algorithm that significantly outperforms the classic SM-2 from 2010. The app tracks accuracy at the question, section and chapter level.

PFE Coach works fully offline. Account and sync are optional. No ads, no hidden tracking.

Key features

  • 650+ test questions across 17 AFH 1 chapters with source-linked explanations
  • FSRS-4.5 spaced repetition scheduler
  • SJT mode — 28 situational judgment scenarios with best/worst scoring
  • Synchronized TTS reading — paragraph-by-paragraph highlight
  • Custom test builder, EPB tracker, streak and countdown to exam day
  • Material 3, dark mode, iPad-ready — independent product, not affiliated with USAF/DoD

Screenshots

PFE Coach — quiz screen
More screens soon

Get the closed beta

Access TestFlight (iOS) or Android beta: pfecoach@kandyb-studio.eu

Request access →