Flash 
Flash Vocal — Roman Numerals
Read them, write them
MCMXLV is not deciphered: it is read.
A Roman numeral appears, the child says its value. Then the number appears, and they write it in Roman numerals. On-device speech recognition, 100% offline.
The app that turns decoding Roman numerals into reading, and writing them into a reflex.
Why out loud?
A Roman numeral is not read in one go: it is taken apart. Faced with XLIV, a child who writes the answer has time to count. Out loud and in rhythm, that time disappears: either the form is recognised, or the hesitation is heard. That is what Flash Vocal measures, and no multiple-choice quiz can check it.
Who is it for?
Years 5 and 6
Roman numerals are on the curriculum, and century numbering rests on them
Years 7 and 8
history names centuries in Roman numerals: stumbling on the reading means losing the thread of the lesson
Adults
deeds, book chapters, clock faces, names of kings and popes
Teachers
up to 30 pupils followed separately
How does it work?
- 1
Read out loud
MCMXLV appears, the child says “one thousand nine hundred forty-five”. On a large number, the app listens to the whole utterance: a hesitation in the middle is not a mistake.
- 2
Write by choosing
The number appears and four spellings are offered, hiding the classic mistakes — IIII, VI for IV, XXXX for XL. Choosing makes you recognise the form.
- 3
Write on the Roman keypad
Seven keys, I V X L C D M, and nothing else: the form is no longer recognised, it is produced. That gesture is what anchors the rule.
- 4
The path unfolds
Twenty-seven steps from I to MMMCMXCIX: every range read, written, then both mixed, with three reviews from the start. One to three stars on pace — 8, 14 then 20 correct answers per minute.
The app in pictures
Features
- 100% offline — no connection, no speech ever transmitted
- Three games: read out loud, write by choosing among four, write on the Roman keypad
- From I to MMMCMXCIX, in twenty-seven steps, with a review sheet for each step
- Sixteen languages: French, English, German, Spanish, Italian, Portuguese, Dutch, Polish, Czech, Turkish, Catalan, Ukrainian, Russian, Japanese, Vietnamese, Chinese
- No ads, no account, no tracking
Pricing
Free: 1 profile and the first seven steps — I to X in all three games, review included — with no time limit.
Family (3 profiles) or Education (30 profiles) subscription — 1, 3, 6 or 12 months: the twenty-seven steps up to MMMCMXCIX and all the reviews.
Prices are shown in the app according to your store (App Store or Google Play).
Download
User manual
First steps, path, voice session, statistics, subscription: everything is explained in the online manual.
Read the Flash Vocal — Roman Numerals 1.0 manualAlso discover
