AnkiWeb
- Votes
- 0 (👍 0 · 👎 0)
- Updated
- 2026-10-22
- Anki versions
- 2.1.1~
- Languages
- Python, JSON
- Description language
- en
AnKing Tag Difficulty Analyzer
AnkiWeb addon 1573537177
Identifies weakest subject areas by calculating card difficulty across tag hierarchies using FSRS metrics or ease factors, with customizable thresholds, presets, and manual tag selection.
Open on AnkiWeb Ask about alternatives
Maintenance
active
- Last update or commit: 2026-10-22 (10 days before the snapshot).
GitHub
No GitHub repository linked.
Will it work on my Anki?
Version branches
| Min Anki | Max Anki | Updated |
|---|---|---|
| 2.1.0 | 2.1.1+ | 2026-10-22 |
History across monthly snapshots
Loading…
Similar addons
Adds AnKing-specific study analytics, weakness trackers, a daily exam planner, per-card stats, risk sorting, and browser tools for targeting and unsuspending cards.
Ranks First Aid Step 1 subjects and subtopics from weakest to strongest by Anki-style retention, showing sortable read-only dashboards and CSV export.
Aggregates existing card difficulty and ease scores by tag, displaying them in a table and color-coded graph to highlight challenging and mastered topics.
Manages AnKing MCAT cards by subject and Kaplan chapter, enabling one-click suspend/unsuspend, bulk deck operations, and automated FSRS-optimized preset configuration.
Tracks review history to rank your most-frequently missed cards by tag or deck, with time-frame and parent-tag filters, and double-click access to open cards in Anki's Browser.
Finds relevant premade-deck flashcards from uploaded notes or files, AI-generates new cards to fill gaps, and provides performance analytics by topic and card.
Description
Tag Difficulty Analyzer
Tag Difficulty Analyzer is an Anki add-on designed to help you efficiently identify your weakest subject areas by calculating the true difficulty of your cards across specific tag hierarchies. By analyzing FSRS memory states or traditional Ease factors, this tool pinpoints exactly which sub-topics (leaf tags) require more of your attention.
Key Features
- Granular Difficulty Tracking: Analyzes unsuspended card data using FSRS metrics (or Ease-based calculations if FSRS is not enabled) to find the hardest topics in your collection.
- Custom Thresholds: Filter out statistical noise by setting a minimum number of cards per tag and a minimum median difficulty percentage.
- Dual Modes: Select target tags manually from your collection using a built-in search filter, or use preset profiles for rapid, one-click analysis.
Note on Presets (STEP 1 & UCF)
The default preset profiles configured for this add-on are tailored specifically for USMLE Step 1 preparation and University of Central Florida (UCF) College of Medicine Parth's deck.
However, this add-on is fully compatible with ANY Anki collection. You can easily use the "Manual / Custom Selection" mode to select your own tags, or you can edit the add-on's configuration file to create your own permanent custom presets for any subject, exam, or deck.
How to Use
- Open Anki and navigate to Tools > Tag Difficulty Analyzer.
- Choose your selection mode:
- Use Preset Profile: Select a predefined group of root tags from the dropdown menu.
- Manual / Custom Selection: Search your collection's tags, select them, and click "Add Selected to Target Roots ↓" to build a custom query.
- Adjust your thresholds for Min Cards (to ensure a valid statistical sample size) and Min Median Diff (%) (to filter out easy topics).
- Click Run Analysis.
- Review the generated text report to see your hardest topics ranked by difficulty, allowing you to prioritize your studying efficiently.
How Difficulty is Calculated
- FSRS: Converts the raw FSRS difficulty metric into a 0-100% scale.
- Ease-Based (Fallback): If FSRS is inactive on a card, the tool calculates a 0-100% difficulty scale based on Anki's standard ease factors (scaled between 130% and 250% ease).