Fifteen a Day
iOS app by The Lucas Agency GmbH. Education · The Lucas Agency GmbH
- Store rating
- 0 / 5
- Store rating count
- 0
- Download price
- Free to download
- In-app purchases
- Unknown
- Version
- 1.1.1
- Listing last refreshed
- 2026-09-18
View the original store listing
Store description excerpt
Know everything. Fifteen cards a day, about two minutes. Real spaced repetition underneath — the cards you fumble come back until they don't, so what you learn stays learned. General knowledge is a subject like any other, and almost nobody studies it. Most people half-know the capitals, roughly recognise the flags, and could not name the grape in the glass. Fifteen is for actually knowing them. WHAT'S INSIDE 29 packs, 1,770 cards. • Capitals of the World — all 196, with the map and the pin • Flags of the World — all 196, including the pairs people genuinely mix up • Languages of the World — the script, the phrase, the place • Cocktails — name the drink from what is in it • Menu Decoder — ceviche, confit, omakase, decoded • Cheers Around the World — the toast, and when it is used • Latin Phrases — the ones that still turn up in English • Wine Labels and Know Your Grapes — the village, the grape, the glass • Leaders of the World, Currencies, Periodic Table, Constellations, Human Anatomy, Cognitive Biases, Dates that Matter, Famous Paintings, Classic Books, Film Directors, Airport Codes, Founders, Brand Origins — and more added regularly HOW IT WORKS Proper spaced repetition. Every card carries its own difficulty, so the ones you find easy retreat for weeks while the ones you keep missing come back tomorrow. You only ever study what you are about to forget — which is why two minutes a day is enough, and why a longer session would not help. BUILT TO BE LOOKED AT Every deck is an object rather than a flashcard. Elements are periodic-table tiles with the name missing. Capitals stamp into a passport. Leaders arrive as dossiers with the name redacted. Constellations are drawn from a real star catalogue. Anatomy plates are rendered from anatomical meshes and carry no labels, because the label would be the answer. YOUR DATA STAYS YOURS No account, ever. Your progress lives on your phone and backs up to your own private iCloud, so a new phone doesn't wipe your streak — it's your iCloud, not our servers, and we can't read it. The free version has one optional ad you can choose to watch; we request non-personalised ads only and never ask to track you across other apps. Pro removes them entirely. FREE VS PRO Free: one new session every day, and your reviews are always free — your streak is never held hostage. Pro: unlimited sessions, no ads, every pack. Monthly, yearly (3-day free trial) or pay once for lifetime. Fifteen cards. Two minutes. Every day. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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