• App now available in Spanish (Latin American): full UI and the entire question bank translated
• Language toggle in About; follows your device language by default
• Search works in both English and Spanish
• New bookmark filter in Cram and Study, so you can review just your flagged questions
• Backup & Restore in About: save or load your progress from a file

• Trimmed repetitive PT chart lookup questions and shuffled the remaining ones for better variety in Cram mode
• Under the hood: PT chart is now data-driven, so future chart updates no longer require an app release

Spaced repetition in Smart Practice - questions are now scheduled using the SM-2 algorithm. Questions you get wrong come back quickly, questions you know well are spaced further apart. Much more effective for long-term retention.
Search - find any question by keyword from the home screen. Search across question text, answer options, and explanations.
Progress charts - visual score trends over time per section with a 72% passing threshold line. Toggle between all sessions and tests only. Category breakdown with average scores.
Question content fixes and improved explanations across the question bank.
Stability improvements to the question sync and data handling.

Completely rebuilt from the ground up.

5 study modes per section: Cram, Study, Smart Practice, Mock Exam, and Most Missed
Smart Practice adapts to your weaknesses, weighting 75% of questions toward areas you struggle with. Mastered questions are excluded automatically.
Mock Exam matches the real test: 25 random questions, 72% to pass, no feedback until the end
Most Missed shows your most frequently wrong questions, sorted by miss count
Bookmark questions from any mode for quick review later
Interactive pressure-temperature reference chart with R-22, R-134a, R-410A, R-404A, and R-32
Per-section progress tracking with readiness scores, mastery counts, and best test scores
Full result history for every practice and test attempt
Study reminders with daily or weekly notifications
Swipe navigation between questions in all modes
Every question reviewed for accuracy and updated to current regulations
New questions sync automatically over the air
Works completely offline
Tablet and accessibility support
Dark mode support

made answers tappable, instead of just the checkbox
added option to retake the same practice test

framework updates. corrected a few answers that were wrong. fixed some incorrect grammar. reworked the coding behind practice test reviews.

minor optimizations

add landscape mode

Fixed incorrect answer

Fixed a typo

fix incorrect answer

Fixed incorrect answer

Implemented feature suggested by HfLyou to continue where you left off in the study section.

UI Tweaks

fix bug in review section

fix crashing on XS and XR phones

iOS 13 compatibility

moved from switches to checkboxes

Data is now all local.  Fixed some bugs with navigation between screens.  Enhanced the practice test review.  Added a help screen.

import data on first run, instead of at each section

added a "Show Answer" button in the study mode, per user request.

removed unused 10MB pdf for smaller app size

fixed a loop that was duplicating practice test questions