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Spanish/app_features.md
Trey t 4b467ec136 Initial commit: Conjuga Spanish conjugation app
Includes SwiftData dual-store architecture (local reference + CloudKit user data),
JSON-based data seeding, 20 tense guides, 20 grammar notes, SRS review system,
course vocabulary, and widget support.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-09 20:58:33 -05:00

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Spanish Conjugation Apps — Feature Comparison

Side-by-side feature analysis of ConjuGato and Conjuu ES, based on App Store screenshots and extracted app data.


ConjuGato

Platform: iOS (iPad-style app via Mac Catalyst) Monetization: One-time purchase, no subscriptions Tech stack: .NET MAUI (Xamarin), SQLite, MvvmCross

Practice Mode

  • Flashcard-style quiz — shows English meaning, infinitive, tense tag (Presente/Subjuntivo), random pronoun
  • Tap to reveal answer below the blank line
  • Daily goal tracker — progress bar at top (e.g. 25/100)
  • Self-rating — rate answers as Easy/Hard after reveal (no typing)
  • Spaced repetition — tracks conjugation ratings with star system (15 stars) and heart indicators
  • Practice history — shows today/yesterday verb performance with star ratings

Verb Reference

  • 1,750 verbs ranked by frequency/popularity
  • Searchable verb list sorted by popularity
  • Full conjugation tables per verb with Indicative/Subjunctive/Others tabs
  • All 6 persons — yo, tú, él/ella/Ud., nosotros, vosotros, ellos/ellas/Uds.
  • 27 tenses including progressive forms and compound tenses

Grammar Explanations

  • Visual conjugation breakdown — shows stem + ending decomposition (e.g. habl- → drop ending → +o)
  • Color-coded irregular highlighting — each span of an irregular form colored by change type (spelling, stem, unique)
  • Irregularity classification — each form labeled as Regular (green), Spelling change, Stem change, or Highly irregular
  • Star ratings — ★★★ regular, ★★ stem change, ★ irregular
  • Similar forms listed — shows other verbs that follow the same pattern (e.g. "Similar forms: satisfago, deshago")
  • Tense guides — explains what each tense is used for with:
    • Usage rules in plain English
    • Mnemonics (e.g. "apply the movie rule: Imperfect = setting, Preterite = plot")
    • Example sentences with Spanish + English + audio
    • Tips for avoiding common confusions (e.g. Preterite vs Imperfect)

Mnemonic Rhymes

  • Rhyming verb groups — groups verbs that sound alike for memorization (e.g. picar, pecar, pegar, pagar, pasar, pisar, pesar, pensar)
  • Dedicated Rhymes tab in bottom navigation

Audio

  • Tap to pronounce any conjugation in the verb table
  • Auto-pronounce answers option in settings
  • Audio on tense guide examples
  • Uses iOS text-to-speech (no bundled audio files)

Settings & Filters

  • Tense filters — toggle individual tenses on/off: Present, Preterite, Imperfect, Conditional, Future, all Subjunctive forms
  • Show progressive forms toggle
  • Show tense names in Spanish toggle
  • Verb ending filters — practice only -AR, -ER, or -IR verbs
  • Conjugation difficulty filters:
    • Fully regular
    • With spelling changes
    • With stem changes
    • Highly irregular
  • Hide "vosotros" conjugations
  • Auto-pronounce answers
  • Verb count display — shows how many verbs match current filters (e.g. "848")

Navigation

  • 5 tabs: Practice, Rhymes, Verbs, Settings (bottom bar)
  • "Get Pro" tab for upgrade

Data (extracted)

Asset Count
Verbs 1,750
Irregular verb forms 14,163
Irregular span annotations 23,795
Irregularity bitmasks 627 verbs
Example sentences separate SQLite DB
Translations 8 languages

Conjuu ES

Platform: macOS native + iOS Monetization: Free tier (25 Basic verbs) + paid unlock Tech stack: Native Swift/Obj-C, Core Data

Practice Mode

  • Typing-based quiz — fill in all 5 person forms (yo, tú, él, nosotros, ellos) for a given verb + tense
  • Full-table entry — type all forms at once, then tap "Answer" to check
  • Progress counter — "1/5" in top-left shows quiz position
  • Session-based practice — complete a set of verbs per session
  • Keyboard input — full keyboard with Spanish character support
  • Hard/Easy self-rating after each answer

Verb Reference

  • 621 verbs with frequency rankings
  • Searchable verb list
  • Full conjugation tables — all 6 persons × 20 tenses
  • 4-language translations — English, Japanese, Chinese Simplified, Chinese Traditional
  • Regularity labeling — ordinary, irregular, regular, orto (orthographic change)

Grammar Explanations

  • Tense guide popups — full-screen modal with:
    • Conjugation ending table showing -AR/-ER/-IR patterns side by side
    • Color-coded endings (stem in white, ending in colored text)
    • Numbered usage rules
    • Example sentences with Spanish + English translations
    • "GOT IT!" dismiss button
  • 7 usage categories for Present tense alone:
    1. Current actions and situations
    2. Abilities and descriptions
    3. Habitual actions
    4. Absolute and universal truths
    5. Actions in the near future
    6. Recounting historical events
    7. Conditional sentences

Tense Selection

  • 20 tenses organized by mood:
    • Indicative: Presente, Perfecto, Imperfecto, Pluscuamperfecto, Pretérito, Pretérito Anterior, Futuro, Futuro Perfecto
    • Subjunctive: Presente, Perfecto, Imperfecto I, Imperfecto II, Pluscuamperfecto I, Pluscuamperfecto II
    • Conditional: Presente, Perfecto (listed under Indicative in UI)
    • Imperative: Afirmativo, Negativo (listed under Subjunctive in UI)
  • Checkbox toggles — enable/disable each tense for practice
  • All visible at once in sidebar panel

Study Lists & Difficulty Levels

  • 8 built-in levels:
    • Basic (25 verbs)
    • Elementary 13 (83 verbs)
    • Intermediate 14 (112 verbs)
    • Advanced (344 verbs)
  • "All verbs" option (621 verbs)
  • Custom lists — "My Lists" section with ability to create personal lists
  • Pinboard — save specific verbs for focused review
  • Study/Review toggle — switch between learning and review modes

Audio

  • Not visible in screenshots (no speaker icons on practice screen)
  • macOS app may use system TTS

Settings & Filters

  • Tense selection panel — sidebar with checkboxes per tense
  • Study list selection — dropdown for difficulty level
  • Daily goal — choose practice intensity:
    • 20 verbs / ~5 min (Casual)
    • 50 verbs / ~10 min (Regular)
    • 75 verbs / ~15 min (Focused)
    • 100 verbs / ~20 min (Committed)

Navigation

  • macOS sidebar with Study/Review tabs
  • iOS bottom tabs: Practice, Rhymes, Get Pro, Verbs, Settings
  • Study Lists in left sidebar with collapsible groups

Data (extracted)

Asset Count
Verbs 621
Conjugated rows 12,406 (all forms pre-computed)
Tenses 20
Tense guides 20 (with usage rules + examples)
Conjugation rule templates 20 tenses × 3 verb types
Difficulty levels 8
Translations 4 languages

Feature Comparison

Feature ConjuGato Conjuu ES
Verb count 1,750 621
Tenses 27 20
Practice style Flashcard (tap to reveal) Typing (fill in forms)
Input method Self-rate (no typing) Type conjugation
Daily goals Numeric counter (25/100) 4 presets (Casual→Committed)
Spaced repetition Yes (star + heart ratings) Session-based review
Rhyming mnemonics Yes (dedicated tab) Not visible
Grammar breakdown Color-coded span highlighting Ending table + usage rules
Irregularity detail 3-level (spelling/stem/unique) with character spans 4-label (ordinary/irregular/regular/orto)
Tense explanations In-app guides with mnemonics Modal popups with usage categories
Example sentences Per-tense with audio Per-tense in guide popups
Audio Tap any conjugation + auto-pronounce Not prominent
Difficulty levels Filter by irregularity type 8 graded word lists
Custom lists No Yes (My Lists + Pinboard)
Verb filters Ending type + irregularity + tense Tense checkboxes + level
Translations 8 languages 4 languages
Platform iOS (Catalyst) macOS + iOS
Monetization One-time purchase Free tier + paid
vosotros toggle Yes Not visible

Unique Strengths

ConjuGato excels at:

  • Breadth — nearly 3× the verbs
  • Irregularity teaching — character-level color-coded highlighting showing exactly why each form is irregular
  • Rhyming mnemonics — unique memorization technique grouping similar-sounding verbs
  • Audio integration — every conjugation is tappable for pronunciation
  • Quick practice — flashcard format is faster per verb than typing
  • Tense coverage — 27 tenses including progressive forms

Conjuu ES excels at:

  • Active recall — typing forces recall vs passive recognition
  • Complete conjugation tables — every form pre-computed and stored
  • Structured difficulty — 8 graded levels from Basic to Advanced
  • Tense explanations — richer usage guides with numbered categories
  • Conjugation rules — extractable ending patterns for all verb types
  • Custom study lists — personalized verb collections
  • Multi-platform — native macOS app with full-screen practice
  • Full-table practice — fill in all 5 persons at once, not just one random pronoun