Comparison

Vocab Book vs StudyDuo

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Vocab Book

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When learning a new language, you need one thing above all: words and more words! So how do you manage to learn those efficiently? Vocab Book gives you the opportunity to always have your words with you. Studying vocabulary is possible in any location, can even be fun with the app's quiz mode. Use Vocab Book on all your iOS devices, iCloud will automatically keep your words in sync. Adding new words is easy and fast. *** Vocab Book Features *** - Quickly create as many words as you need, sorted into different vocabulary sets - Progress monitored in a simple, efficient system - Easy studying by automatic quizzing - Automatic iCloud synchronisation

About

StudyDuo

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Studying alone is harder than it should be, and it isn't your discipline. Most people focus better when someone else is working next to them. StudyDuo puts you in a live video room with people who are working right now. No talking, no meetings, no small talk. You sit down and start. People call this body doubling or "study with me". Here it's live and open 24/7. HOW IT WORKS 1. Open Focus Room, a silent video room that never closes. 2. Write what you're working on and pick 30, 60, 90 or 120 minutes. 3. Point your camera at your face or your desk, or keep it off. 4. Work. Your task shows under your name, and everyone around you is working too. THREE WAYS TO STUDY Focus Room: walk in whenever you need to focus. Cameras on, microphones off. Study Hour: once a day, everyone studies at the same time. Two 25-minute focus blocks with a 5-minute break, then a check-in: did you get it done? 1:1 with a study partner: want one focus partner instead of a whole room? Post a time on the board, now or within a week. Whoever joins comes straight into the video with you. Tap the microphone to talk, or use the chat. KEEP GOING • Streak: 30 minutes a day, in one go or a few, counts the day. Freezes save your streak when you miss one. • Hours and shields: your study time adds up, and your top shield shows next to your name. • Tasks: plan your days with reminders. Tap Work on this, and your task shows in the room. • Daily reminder: pick a time, and we'll nudge you every day. PEOPLE WHO KEEP YOU GOING • Double-tap a video to send a like. • Pin the people who motivate you, and they stay at the top of your grid. • Follow them, message them, and get a notification when they start studying. • Post in the feed. • Show the song you're playing on your tile with Apple Music. YOUR CAMERA, YOUR RULES • Your camera starts off. You decide when it goes on. • Face or desk: show yourself, or only your hands and notes. • Choose who sees your video: everyone, people with their camera on, people with a verified photo or, with Premium, only Premium members. Others see a blurred silhouette. • Step away anytime: your camera pauses, and others see you're away. • A selfie check puts a blue mark next to your name. Only our team sees the selfie, and we delete it right after the check. • Teens 16–17 have their own rooms, separate from adults. Video rooms aren't available under 16. • Rooms aren't recorded. You can report or block anyone from their video. FREE AND PREMIUM Everyone gets an hour of video rooms a day, plus tasks, streaks, badges, chat and the feed. New accounts get 14 days of Premium for free. When they end, you choose whether to keep it. Premium adds: • Video rooms without the daily limit • HD video • 2 boosts a day: first on everyone's grid for an hour • 5 streak freezes a month instead of 2, and one more every 5 days in a row instead of every 7 • Dark theme • Show your video only to Premium members Superboost is a one-time purchase, not a subscription: 5 hours first on everyone's screen. Made for students, exam prep, remote workers, writers, coders and anyone who gets more done next to someone else. Terms of Use: https://studyduo.app/terms Privacy Policy: https://studyduo.app/privacy

Screenshots

Vocab Book3 screens
StudyDuo4 screens

Verdict

The call

The clearest difference is in-app purchases: Vocab Book at none against StudyDuo's 4. StudyDuo's advantage is device support. On price and iOS requirement there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. StudyDuo sells 4 in-app purchases, starting at $4.99 per month. Vocab Book asks for nothing beyond the download.

Scorecard2 real differences Ā· 4 level
Vocab Book versus StudyDuo: the parameters behind the verdict, then further details
ParameterVocab BookStudyDuo
PriceFreeFree
Update frequency—Every 2 weeks
Ads—No
In-app purchasesNo — betterYes
Devices—iPhone, iPad — better
Requires iOS17.016.4 — better
Further details — not scored
Size1 MB90 MB
Age rating17+4+
DeveloperOliver BrehmOleh Shapoval

In-app purchases

None

Vocab Book

No in-app purchases

4 purchases

StudyDuo

Subscriptions2
  • Premium Monthly$4.991 Month
  • Premium Yearly$49.991 Year
One-time2
  • Superboost$0.99
  • 10 Superboosts$4.99

Questions

Is Vocab Book free?
Vocab Book is free to download, with no in-app purchases.
Is StudyDuo free?
StudyDuo is free to download, with in-app purchases available.

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