Features
Everything between you and a pass
certifyboost covers the full preparation loop: learn, drill daily, simulate the exam, get graded, repeat until the data says you're ready.
Mock exams
Full-length simulations, scored like the real thing
- Every section of the real exam: listening, grammar/vocabulary/reading, writing and speaking
- Timed exactly like exam day — listening audio plays once
- Pass/fail computed from each certification's published scoring bands
- Results finalize only when every section is complete, so your score means something
AI speaking
The section nobody else lets you practice
- Scripted examiner interviews with the real stage structure of your exam — including the surprise task
- Exam mode enforces real conditions: one listen, short prep, no do-overs. Practice mode adds captions, replays and re-records
- Transcribed and marked against a rubric written for your exam's speaking test — a band out of 100 (pronunciation isn't scored)
- Live Interview: a realtime AI examiner you can actually converse with, in prepaid minute packs with a free 5-minute taster
Examiner
“Now I'd like you to convince me: which of the two options should the school choose, and why?”
Well-developed answers; work on conditional structures in stage 3.
AI writing
Examiner-style essay feedback in about a minute
- Graded against your certification's published criteria, not a generic checker
- A band out of 100, with a mark and a comment for each of your exam's criteria
- What you did well and what to work on next, for every task
- Counts toward your mock exam result, always labelled as an AI estimate
To work on: link your paragraphs with a wider range of devices, and make your own view clear in the conclusion.
Courses
Video lessons with exercises that don't let you guess
- Short video tutorials followed by 1–4 exercises per segment
- Eight exercise types — sorting, categorization, gap-fills, matching, sentence building, highlighting, transformation — and deliberately no multiple choice
- Exercises complete only when fully correct; hints are available but cost XP
- The first chapter of every course is free, forever
Practice & boosters
Five minutes a day beats five hours the night before
- Topic drills: five random questions, retry until every answer is correct
- Daily boosters — one-shot challenges that are the same for everyone, Wordle-style
- Phrase upgrades save straight into your personal flashcard deck
- Everything feeds your daily 250 XP goal and your streak
12-day streak
Daily goal: 250 XP
Grammar MCQ solved
+15 XP · come back tomorrow
Phrase upgraded
“a lot of” → “a wealth of” · saved to flashcards
Progress
Know you're ready before you pay the exam fee
- Per-skill breakdown across listening, reading, writing and speaking
- Mock score history against your certification's pass threshold
- XP, streaks and daily activity in one header widget, everywhere in the app
- See when your mock scores clear your exam's pass mark — before exam day
Readiness
Pass threshold — cleared in your last two mocks
Coverage
Built for the exams you actually sit
Full mock content, section renderers and scoring bands per certification — not one generic test recycled seven times.
ECCE
Michigan ECCE
ECPE
Michigan ECPE
B2 First
Cambridge B2 First (FCE)
C1 Advanced
Cambridge C1 Advanced (CAE)
C2 Proficiency
Cambridge C2 Proficiency (CPE)
LRN B2
LRN Level 1 ESOL
LRN C2
LRN Level 3 ESOL
IELTS
On the roadmap
Walk into exam day already sure you'll pass
Start free with a real mock exam, daily boosters, and the first chapter of every course. No credit card required.