26s: Vocabulary Builder Android
26s: Vocabulary Builder gets 500+ downloads a day worldwide (AppInsider estimate, September 2026, rounded down to a band).
26s: Vocabulary Builder is #18 in Education Grossing on Google Play in South Korea and charting in 1 of 15 countries we track.
Updated 27 Sep 2026 · rankings refresh through the day
DeveloperApeiro
CategoryEducation
PriceFree
Released
Installs100k+
Rating★ 4.7 (6k)
Updated
Content ratingEveryone
Rating
4.7 ★
6k ratings
Measured
Best rank now
#18
Education GrossingMeasured
26s: Vocabulary Builder on Google Play
App details
App ID
com.skimmify.toeic
Publisher
Apeiro
Content rating
Everyone
26s: Vocabulary Builder downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Google Play shows an exact lifetime install count; downloads per day are its daily change (measured). When Play hasn't refreshed the count, they come from new ratings and Top Free chart positions. Confidence is the chance the real number is within half to double ours.
Where 26s: Vocabulary Builder's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
Retention · share of new users still active
Day 1
Day 7
Day 30
Time spent · per daily user
Average time spent Pro
min a day
Sessions a day Pro
Time per session Pro
min
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
In-app revenue
Worldwide, what users spend in 26s: Vocabulary Builder before Apple and Google take their fee.
How this is calculated
Not in an overall Top Grossing chart, only in category charts: each category position is converted to the overall position it corresponds to, then priced on the same rank-to-revenue curve, inside the part of each market the charted apps leave over.
Business model: In-app purchase-led
How 26s: Vocabulary Builder makes money: subscriptions, one-off purchases and ads.
In-app purchases
One-off purchases
/mo
of revenue
Where it ranks on Google Play
Every top 200 chart it appears in across 15 countries.
| Country | Charts | Rank |
|---|---|---|
| South Korea | EducationGrossing | #18 |
| South Korea | EducationFree | #51 |
Apps near 26s: Vocabulary Builder on the chart
Education Grossing, around #18.
Ratings
Google Play, worldwide.
Rating
4.7 ★
6k ratings
Measured
Ratings
6k
Measured
Written reviews
20
Measured
About 26s: Vocabulary Builder
Learn vocabulary in 26 seconds. Not minutes. Not hours. Seconds.
Why 26s
• 26s is the fastest vocabulary builder for serious language learners.
• Master Japanese, Korean, Spanish, French, German, and English exam vocab using a visual memorization method that locks words into long-term memory — faster than flashcards, smarter than drills.
• Your brain remembers pictures, not definitions. 26s turns every word into an image you won't forget.
SEE IT. REMEMBER IT.
Every word is paired with a visual cue designed for instant recall. No endless flashcard grinding. No filler games. No forgetting. Just rapid learning that actually works — on the train, between meetings, or before bed. 26 seconds per word is all you need.
ONLY THE WORDS THAT MATTER
Curated word lists for every level, from absolute beginner to near-native fluency. Skip the filler you'll never use. Learn what native speakers actually say — and what exam graders actually test.
BUILT FOR THE WORLD'S TOP EXAMS
• JLPT N5, N4, N3, N2, N1 (Japanese)
• TOPIK I and II (Korean)
• DELE A1 to B2 (Spanish)
• DELF A1 to B2 (French)
• TELC A1 to B2 (German)
• GRE, TOEFL
FORGET FORGETTING
26s uses a precision-tuned spaced repetition algorithm (SRS) that tracks exactly when you're about to forget a word — and brings it back at the perfect moment. No wasted reviews on words you already know. Every session focuses on what matters most, so retention stays high with minimal effort.
This is how memory actually works. This is how 26s beats every other flashcard app.
KNOW WHAT YOU KNOW
Real tests. Real level. Honest results. Measure your true progress with rigorous quizzes built to mirror actual exam conditions. No more guessing where you stand before test day.
NEVER MISS A DAY
Building a daily habit shouldn't depend on motivation. Live Activities put your progress on your Lock Screen. Smart notifications nudge you at the right moment — not random reminders you'll ignore, but well-timed prompts that fit into your routine.
Show up for 26 seconds a day. Watch your vocabulary grow.
Stop memorizing the hard way. Download 26s and build a vocabulary that sticks.
Homepage
https://skimmify.com/en/
Instagram
https://www.instagram.com/toeic.card/
App Inquiry
[email protected]
Terms and Conditions
https://skimmify.com/legal/terms_en
Privacy Policy
https://skimmify.com/legal/privacy_en
[Minimum supported app version: 1.42.2]
Why 26s
• 26s is the fastest vocabulary builder for serious language learners.
• Master Japanese, Korean, Spanish, French, German, and English exam vocab using a visual memorization method that locks words into long-term memory — faster than flashcards, smarter than drills.
• Your brain remembers pictures, not definitions. 26s turns every word into an image you won't forget.
SEE IT. REMEMBER IT.
Every word is paired with a visual cue designed for instant recall. No endless flashcard grinding. No filler games. No forgetting. Just rapid learning that actually works — on the train, between meetings, or before bed. 26 seconds per word is all you need.
ONLY THE WORDS THAT MATTER
Curated word lists for every level, from absolute beginner to near-native fluency. Skip the filler you'll never use. Learn what native speakers actually say — and what exam graders actually test.
BUILT FOR THE WORLD'S TOP EXAMS
• JLPT N5, N4, N3, N2, N1 (Japanese)
• TOPIK I and II (Korean)
• DELE A1 to B2 (Spanish)
• DELF A1 to B2 (French)
• TELC A1 to B2 (German)
• GRE, TOEFL
FORGET FORGETTING
26s uses a precision-tuned spaced repetition algorithm (SRS) that tracks exactly when you're about to forget a word — and brings it back at the perfect moment. No wasted reviews on words you already know. Every session focuses on what matters most, so retention stays high with minimal effort.
This is how memory actually works. This is how 26s beats every other flashcard app.
KNOW WHAT YOU KNOW
Real tests. Real level. Honest results. Measure your true progress with rigorous quizzes built to mirror actual exam conditions. No more guessing where you stand before test day.
NEVER MISS A DAY
Building a daily habit shouldn't depend on motivation. Live Activities put your progress on your Lock Screen. Smart notifications nudge you at the right moment — not random reminders you'll ignore, but well-timed prompts that fit into your routine.
Show up for 26 seconds a day. Watch your vocabulary grow.
Stop memorizing the hard way. Download 26s and build a vocabulary that sticks.
Homepage
https://skimmify.com/en/
https://www.instagram.com/toeic.card/
App Inquiry
[email protected]
Terms and Conditions
https://skimmify.com/legal/terms_en
Privacy Policy
https://skimmify.com/legal/privacy_en
[Minimum supported app version: 1.42.2]
What's new in 1.46.7
• Improved app. Have fun learning!