02 — One catalog, every skill
Know your real band.See exactly where you stand.Measured from 4.0 to 9.0 — never guessed.
Free AI examiner. Real band precision. Your English, measured — descriptor-calibrated, from 4.0 to 9.0.
overall
02 — One catalog, every skill
A full observatory, not a quiz app
Everything you need to climb a band — free at the core. Premium trains you harder; it never locks the tests or the AI.
03 — Why not 7.0?
Why an instrument beats a guess
Ulugh Beg measured the stars from Samarkand with staggering precision. We measure your English the same way.
4 criteria
Scored separately — TA/CC/LR/GRA, never a single fuzzy number.
Descriptor-calibrated
Judged against the official public band descriptors, band by band.
Actionable
Every result ends with the exact move to the next half-band.
Find your star
Grammar · tense · 1/5
She has lived here ___ 2015.
04 · Band
Fluency
7.5
Lexis
8.0
Grammar
7.0
Pronunciation
7.5
ielts-ai · your star, measured

