octoboSwipeable flashcards
Know it or learn it — one swipe decides. See clear definitions and examples, and hear the pronunciation whenever you need it.
Small words.
Big worlds.
Swipe through flashcards, review missed words right before you forget them, and turn a few minutes a day into lasting vocabulary.
Word packs for everyday life, work, travel and exams
A better way to build your vocabulary
Learn new words, revisit the ones you miss and follow your progress. All in one place.
15 words a day
A little practice. A growing vocabulary.
Smart review
Words you miss move into your Learning list and come back right before you would forget them.
Streaks & daily goals
Set a daily goal, get an optional reminder and keep your streak alive with points and trophies.
Play with friends, climb the ranks
Create a live quiz room, invite your friends and practice together. See how you compare on the leaderboard.
Your progress, safe everywhere
Sign in with Apple or Google and your progress syncs securely across your devices.
- No third-party ads
- No cross-app tracking
- Delete your account anytime
Your daily learning routine
Choose your level and your goal. Make a few minutes of practice part of your day.
Packs built for your goals
19 focused packs, from your first everyday words to IELTS and SAT vocabulary.
Free
Free
Start free. Unlock everything with Plus.
Two starter packs are free. Octobo Plus opens every pack in the app.
Free
No card needed, no time limit
- 2 starter packs: Core English 3000 & Beginner Essentials
- Flashcards, smart review and mixed quizzes
- Streaks, daily goals and reminders
- Quizzes with friends and the leaderboard
Monthly or yearly
Your local price is shown in the App Store before you buy
- All 19 word packs
- IELTS Academic 1000 and SAT Vocabulary 1000
- Switch packs whenever you like
- 7-day free trial for eligible new subscribers
- Cancel anytime in your Apple account settings
Subscriptions renew automatically at the price shown by Apple unless canceled at least 24 hours before the end of the current period. See the Terms of Use.
Is Octobo free?
Yes. You can download Octobo for free and study with two starter packs, flashcards, smart reviews, streaks and quizzes with friends. Octobo Plus unlocks every word pack.
How does the free trial work?
Eligible new subscribers can try Octobo Plus free for 7 days. The trial becomes a paid monthly or yearly subscription unless you cancel at least 24 hours before it ends.
Which languages does Octobo support?
The app is available in English, Spanish, Turkish, Korean, Portuguese (Brazil) and Japanese. Menus and word meanings use your language; English words and examples stay in English.
Will I lose my progress if I change phones?
No. Sign in with Apple or Google and your learning progress syncs securely to your account, so you can pick up where you left off.
How do I cancel Octobo Plus?
Open your Apple account settings and go to Subscriptions. Deleting your Octobo account does not cancel a subscription.
How do I delete my account?
Go to Profile → Settings → Account → Delete account. This permanently removes your synced learning data and cannot be undone.
Are the SAT and IELTS packs official?
No. They are unofficial study resources and are not affiliated with or endorsed by their respective trademark owners.
Ready to remember more?
Download Octobo for free and learn your first words in just a couple of minutes.
Download on theApp Store