Fifteen a Day Downloads & RevenueFifteen a Day · App Store
Not in any tracked top chart right now.
Updated 7 Nov 2026 · rankings refresh through the day
DeveloperThe Lucas Agency GmbH
CategoryEducation
PriceFree
Released
Rating★ 5.0 (3)
Version1.2.0
Age rating12+
First seen by us
14 Oct 2026
14 Oct 2026Full timeline · 6 events
- 🆕Fifteen a Day first spotted by AppInsiderGermany (found via developer)
- 🆕Fifteen a Day: its developer released another app: Meowt!
- 🆕Fifteen a Day: its developer released another app: Wie Groß? Schätze die Größe
- 🆕Fifteen a Day: its developer released another app: Grid Gang
- 📦Fifteen a Day version 1.2.0Pick your subjects. Tell Fifteen what you're into — geography, food and drink, history, whatever it is — and your daily fifteen leans that way. Everything else still turns up. Change it any time under You.
Also new:
• A daily reminder, offered once after your first round
• Share a result as a card with a row of squares, one per card
• Ten constellations finally have their star maps, and three now ring the right star
• Good and Easy always offer different intervals
• Revealing an answer no longer makes the card jump
• On a German phone, the cards speak German too… more - 🆕Fifteen a Day released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
5.0 ★
3 ratings
Measured
Fifteen a Day on the App Store
App details
App ID
6796376614
Publisher
The Lucas Agency GmbH
On the store since
Aug 2026
Under a year
Minimum OS
iOS 16.4+
iPhone 8 and later
Devices
iPhone · iPad
Content rating
12+
5 content notes below
Languages
2
EN DE
Size
62 MB
Also listed in
Reference
Content notesInfrequent/Mild Realistic ViolenceInfrequent/Mild Mature/Suggestive ThemesInfrequent/Mild Alcohol, Tobacco, or Drug Use or ReferencesInfrequent/Mild Cartoon or Fantasy ViolenceInfrequent/Mild Sexual Content and Nudity
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
5.0 ★
3 ratings
Measured
Ratings
3
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
5.0★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
20/100
faster than 0% of Education apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About Fifteen a Day
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/
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/
Latest updates
1.2.0
Pick your subjects. Tell Fifteen what you're into — geography, food and drink, history, whatever it is — and your daily fifteen leans that way. Everything else still turns up. Change it any time under You.
Also new:
• A daily reminder, offered once after your first round
• Share a result as a card with a row of squares, one per card
• Ten constellations finally have their star maps, and three now ring the right star
• Good and Easy always offer different intervals
• Revealing an answer no longer makes the card jump
• On a German phone, the cards speak German too
