BG Trainer A0
Bulgarian A0 grammar drills
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Practice Bulgarian A0 grammar with bite-sized drills. 8 lessons, 250 drills, 12 formats. Build sentences yourself — the scaffolding fades as you advance.
BG Trainer is a focused grammar drill app for absolute beginners learning Bulgarian. Designed for Russian and Ukrainian speakers (East Slavic background) starting at A0 level.
WHAT YOU PRACTICE
• Verb "to be" (съм/си/е/сме/сте/са)
• Possession verbs имам / искам / мога
• Definite articles (-ът, -та, -то, -те)
• Grammatical gender — masculine, feminine, neuter
• Plural forms — regular and irregular
• Possessive pronouns
• Negation
• Question word order with particle "ли"
• Numerals, time, dates
• Present perfect tense
• Food, taste, restaurant vocabulary
HOW IT WORKS
• 8 progressive lessons (L1–L8)
• 250 drills and over 4000 questions across 12 formats — multiple choice, keyboard input, sentence building, particle insertion, matching pairs, paradigm tables, timed quizzes
• A round of three short games in a row
• Instant feedback after every answer with the correct form and a short rule
• Weak and long-unpracticed items come up first, and a mistake returns later in the same session
• Mastery tracking per item, session history and progress charts
BUILD THE SENTENCE YOURSELF
Every lesson carries a production drill: you read the translation and produce the Bulgarian sentence. The scaffolding fades as the course advances — labelled roles and a word bank at first, then bare blanks, then an empty line, and in the last lessons you type the whole sentence.
CLEAR THE FIRST TIME
• A worked example sits above every question, so the shape of the expected answer is never a guess
• The hint and the verb-form table open from the header and stay out of the play area
• Four text sizes, following the iOS system setting by default
INTERFACE
• Russian or Ukrainian UI (your choice)
• Three pace presets: quick (3 questions), standard (5), long (8)
• Light theme tuned for focused study
• Works offline — all content bundled, no account required
ALL INCLUDED
• All 8 lessons (L1–L8) included — free, no in-app purchases
• No subscriptions, no ads, no tracking
PRIVACY
All learning progress is stored on your device. We do not collect, transmit, or sell any personal data.
OPEN SOURCE
BG Trainer is open source — browse the code, report issues, or contribute:
https://github.com/korchasa/bg-trainer
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
New drills on verb aspect.
Lesson 6 teaches the four ways a perfective verb is formed: dropping -ва-/-ава-/-ява-, the -на suffix, a prefix, and a changed stem. Alongside them come a typing drill, aspect-pair matching, choosing the aspect by a time marker ("всеки ден" or "утре"), and future-tense paradigms where "се" sits between "ще" and the verb.
Lesson 7 adds the aspect pairs from the shopping topic, the aspect choice after "ще", and six more future-tense paradigms.
Every task now asks for a Bulgarian form rather than the name of a rule. Instead of naming a noun's gender, you add the right article and work out the gender from the ending yourself. The conjugation-number question is gone: conjugation is already practised through the forms.
The app now has 250 drills, and the App Store shows its real languages, Russian and Ukrainian.
The developer, Stanislav Korchagin, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Stanislav Korchagin
- Size
- 3 MB
- Category
- Education
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
- Russian
- Age Rating
4+
- 4+
- Copyright
- © 2026 Stanislav Korchagin
