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26s: Vocabulary Builder icon
GOOGLE PLAY

26s: Vocabulary Builder

Apeiro · Education · Brazil store
NOT IN TOP 100 HERE
View on Google Play ↗ Instagram card App Store version →
Revenue a month, worldwide EST
$91.7K
Likely $30.6K to $275K
▼ 83.6% in 11 days
New ratings
+5
in 1 days, 6.2K in total
New installs
+1.2K
in 1 days, exact count from Google
Countries it ranks in
1
was 1 on Oct 16, 2026

Revenue

Estimated from the grossing charts of Oct 21, 2026 in the 53 countries we track, and ratings growth on the App Store.

EST. REVENUE / YEAR · WORLDWIDE
$1.1M
Both stores combined. Small app estimate, so no split per store
LIFETIME INSTALLS (GOOGLE)
278.1K
Worldwide, reported by Google
WHERE IT EARNS · EST. / MONTH
  • South Korea #23 Education (Play), #10 Education (iOS)$86.8K · 95%
  • Taiwan #14 Education (iOS)$4.9K · 5%
HOW SURE ARE WE
Small app: combines its grossing ranks with ratings growth (348 new ratings a month on average since launch). Tested on 418 apps with verified revenue: typically off by about 2.6 times, so the range is wide. Countries we don't track (and Google Play in China, which doesn't exist) aren't included, and neither are ads or web payments. Gross revenue before store fees.
RATINGS
n/a
AVG RATING
n/a
PRICE
Free
IN APP PURCHASES
R$76.99 - R$499.99 per item
CONTAINS ADS
No
LAST UPDATE
35d ago
RELEASED
n/a
CONTENT RATING
All ages

Last 30 days

From our daily snapshots of every grossing chart.

DAYS IN A GROSSING CHART
30 / 30
COUNTRIES NOW
1 (was 1)
EST. REVENUE A MONTH, DAILY · BOTH STORES EST
Show daily values
Sep 24, 2026$619K a month
Sep 25, 2026$691.7K a month
Sep 26, 2026$654.3K a month
Sep 27, 2026$654.3K a month
Sep 28, 2026$698K a month
Sep 29, 2026$755.4K a month
Sep 30, 2026$811.5K a month
Oct 1, 2026$781.1K a month
Oct 2, 2026$933.5K a month
Oct 3, 2026$823.1K a month
Oct 4, 2026$911.3K a month
Oct 5, 2026$729K a month
Oct 6, 2026$681.4K a month
Oct 7, 2026$691.7K a month
Oct 8, 2026$584.3K a month
Oct 9, 2026$594.9K a month
Oct 10, 2026$560.1K a month
Oct 11, 2026$556K a month
Oct 12, 2026$554.7K a month
Oct 13, 2026$521.9K a month
Oct 14, 2026$521.9K a month
Oct 15, 2026$530.4K a month
Oct 16, 2026$508.1K a month
Oct 17, 2026$518.4K a month
Oct 18, 2026$641.5K a month
Oct 19, 2026$591.9K a month
Oct 20, 2026$453.8K a month
Oct 21, 2026$91.7K a month
Oct 22, 2026not in a grossing chart
Oct 23, 2026not in a grossing chart
The same estimate as the headline, saved every day. Best rank Sep 24, 2026: #19 Education · KR. Now: #23 Education · KR.

Money and momentum

Measured from the store, not estimated.

WHAT IT CHARGES
R$76.99 - R$499.99 per item
Google Play only shows the price range per item.
REVIEW MOMENTUM
0.7 reviews / week
  • Trendrising
  • Recent reviews average3.3 stars
  • Recent 1 and 2 star share34%
From the latest 47 written reviews, covering 506 days.

What users want

From the latest 47 reviews on the Brazil Google Play, Jun 4, 2025 to Sep 14, 2026: 34% are 1 or 2 stars. Open a theme to read what people wrote.

WHAT THEY COMPLAIN ABOUT · SHARE OF BAD REVIEWS
Price and subscription38%

6 of the 1 and 2 star reviews.

★★★★★ Seemed promising but then required a payment of like ~70$ for lifetime access after one night that I didn't even get to give a proper test/trial to see if I liked it.
★★★★★ finally got a minute to look into it and it wants me to subscribe to do anything.
★★★★★ The price is also very high for a vocab app, especially for a subscription model, when there are other apps that offer nearly identical TOPIK vocab study for free.
Login and account problems13%

2 of the 1 and 2 star reviews.

★★★★★ I subscribed and my account never activated
★★★★★ (Edit) The app will not let you sign in again with a LINE ID, and all customer support to resolve this problem is done through Kakao in Korean.
No customer support13%

2 of the 1 and 2 star reviews.

★★★★★ It looked really promising at first, but it seems to use a lot of AI-generated pictures, which is unethical and I can't support a company that profits by stealing work from real artists.
★★★★★ (Edit) The app will not let you sign in again with a LINE ID, and all customer support to resolve this problem is done through Kakao in Korean.
WHAT THEY ASK FOR
  • overall excellent app, but it would be better if Japanese JLPT learners could start reviewing their flashcards whenever they want instead of having to skim through 10 new words first every day. 4★, Jul 4, 2026
  • someone need a free resource sometimes, maybe a one time purchase option but I can't justify the price. 3★, Jun 20, 2026
WORDS THAT KEEP COMING UP IN BAD REVIEWS

Nothing stands out.

WHAT THEY LOVE · SHARE OF GOOD REVIEWS

Not enough good reviews in English to tell.

Found by matching words and phrases in the reviews, not read by a person. A review can count toward more than one theme.

What users say

Latest reviews, Brazil Google Play.

★★★★★Sep 14, 2026

Seemed promising but then required a payment of like ~70$ for lifetime access after one night that I didn't even get to give a proper test/trial to see if I liked it. Would be so useful to have like a 1 week free trial (that I can choose when to start) to expierence the app.

★★★★★Sep 10, 2026

it's freaking goood

★★★★★Sep 5, 2026

I found it very helpful. But recently I found a small bug that caused a bit of inconvenience for me. In the skimming part, when I click "learn", the word isn't added to the "learn list" sometimes, and vice versa, when I click "skip", the word is added into the list. So I have to manually check and correct them after skimming. I'm using "學測" in traditional Chinese, can you investigate this and fix this pls?

★★★★★Aug 25, 2026

超爛,付費了卻不能用電腦版,還是一直跳出不訂閱就不能繼續使用的通知

★★★★★Aug 24, 2026

fine flashcards, but the overwhelming use of AI is unacceptable for a paid service.

★★★★★Aug 10, 2026

팔아먹고 싶으면 무료앱인척을 하지말라고

Apps like this

Same category, earning about as much.

Store screenshots

ScreenshotScreenshotScreenshotScreenshotScreenshotScreenshotScreenshot

App Store ads

Apple Search Ads this app ran in the last 90 days, from Apple's public ad repository.

No App Store ads in the EU
None in the last 90 days.

Apple only publishes ads shown in the EU (EU Digital Services Act), with a 7 day delay. An app that advertises only outside the EU shows nothing here. Shown for the App Store version (26s: Vocabulary Builder).

Growth research

Where this app is buying and earning its users. Each link opens pre filtered.

ASO keywords

Most repeated terms in the listing. Highlighted ones also appear in the title or short description.

26s6word5vocabulary4seconds4actually4actually works3skimmify legal3exam3words3forget3know3day3skimmify3learn2japanese2korean2spanish2french2german2visual2memory2flashcard2filler2forgetting2

What's new in 1.46.7

• Improved app. Have fun learning!

Store description

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 support@apeirocorp.com Terms and Conditions https://skimmify.com/legal/terms_en Privacy Policy https://skimmify.com/legal/privacy_en [Minimum supported app version: 1.42.2]

See this store page in another country

Prices, ranks and reviews are per country. Revenue above is already worldwide.

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