Comparison

Viglot vs OtoOi Reader

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

Head to head
About

Viglot

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You understand far more than you can say. Viglot closes that gap with speaking practice built around your own life, in 40+ languages. ā–  When it's your turn, your mind goes blank You've studied for months, maybe years. You can read a menu and follow a conversation. But when it's your turn to speak, your mind goes blank. Fluency isn't knowing more words, it's getting them out when it counts, and that is exactly what Viglot trains. ā–  Past the basics, most apps run out of things to teach you Ordering a coffee and asking the way won't get you through a doctor's appointment, a job interview or dinner with your partner's family. Viglot starts where beginner courses stop and takes you from intermediate to advanced (B1 to C2), with new situations every time instead of the same drills with longer words. ā–  Learn the language for your life, not a textbook's Tell Viglot what you need the language for: your job, a move abroad, your partner's family, football, cooking. Every lesson becomes a scene from that life, and every phrase comes with a picture of the moment and a native-quality voice. Words you need, seen in a real moment, are words that stay. ā–  Practice speaking without an audience No one to practice with, or too self-conscious to try in front of people? Your conversation partner in Viglot is an AI: it's there whenever you have ten minutes, never loses patience and never judges. You get a goal, like returning a faulty jacket, explaining your symptoms or agreeing on a price, and you talk it through out loud. Afterwards you find out whether you got there and what to say better next time. ā–  Don't stall when a word is missing In a real conversation you forget a word, or the other person gets you wrong. Viglot trains you for both: you practice saying things in your own words, and Viglot even misunderstands you on purpose, so you learn to rephrase, give an example or ask a clarifying question until your point lands. ā–  Stop forgetting what you learned Words you struggle with come back sooner, words you know come back later, so your time goes where it's needed. A word only counts as learned once you've produced it yourself, not just recognized it. And the difficulty follows you: it eases off when you're struggling and pushes when you're cruising. ā–  Exam coming up? Type your exam as the topic, for example DELE B1, DELF A2, Goethe B1, JLPT N4, HSK 3 or TOPIK II, and your lessons follow its syllabus unit by unit. Any other topic works just as well. Viglot isn't affiliated with any exam provider. ā–  Not learning from English? Most apps only teach from English. Viglot works in any pair of 40+ languages, in either direction: German from Persian, Spanish from Arabic, English from Ukrainian, Japanese from French. Learn Spanish, English, French, German, Italian, Portuguese, Arabic, Persian, Turkish, Russian, Ukrainian, Polish, Chinese, Japanese, Korean, Hindi and many more, including regional varieties such as Latin American Spanish, Brazilian Portuguese and Egyptian Arabic. Right-to-left languages work fully, and the app itself is available in 36 languages. ā–  Who it's for Viglot is for learners who want to finally use what they know. It covers A1 to C2 and is tuned for B1 and up. It isn't made for complete beginners: it assumes you already know the basics. ā–  Free to start The core exercises are free. Premium unlocks the conversations and the speaking practice, plus listening, culture and grammar-feedback exercises. Premium is a monthly subscription; cancel anytime. You know more than you can say. Time to start saying it. Terms of Use (EULA): https://viglot.com/terms.html Privacy Policy: https://viglot.com/privacy.html

About

OtoOi Reader

Features
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OtoOi Reader is a Korean reading app with something new every day. Read real-life Korean the way it is written — online forum posts with their comment threads, short travel stories, and news written from the facts — sentence by sentence, with audio for every sentence. ā–  What you can read • K-Drama Next Door — short dramas written in the style of Korean online forums: advice posts and real-life stories, comments and all. After the ending, the author explains the twist and the everyday life behind it. A new episode every day. • Kai's Train Trips — Kai rides the KTX to cities around Korea and discovers the local food. Travel notes with the facts and sources. • News — Korean news written from the facts, in an Easy and a Standard version. • Story — Kai's everyday life in Korea, told in short conversations (beginner level). ā–  How it helps you read • Read first, then check: open the English translation one sentence at a time. • Tap a word for its meaning in that sentence, its dictionary form and how it is conjugated. • Tap an underlined grammar pattern for a short explanation of how it works in that sentence. • Audio for every sentence. • A TOPIK level for every piece, so you can find what fits you. ā–  Words — see your Korean grow • Mark words and grammar as Known, Learning or Not yet while you read. • See how many TOPIK level 1–6 words and grammar patterns you know, level by level. • Your known-word rate on every piece shows what you can read next. • Word cards: check the meanings of words you met while reading, or marked Learning, in a five-option quiz, then update your Known and Learning marks from the results. Every sentence is written by us, so there is no material to hunt for. • Look back at your Known-words chart week by week (month by month with Pro). ā–  Subscription New pieces are free for 7 days after they come out. Older pieces: the Korean text and audio are free; the translations, word meanings and explanations are part of OtoOi Reader Pro, along with all TOPIK levels and your full history in Words. 7-day free trial. Payment is charged to your Apple ID at confirmation of purchase. The subscription renews automatically unless it is turned off at least 24 hours before the end of the current period. You can manage or cancel it in your App Store account settings. Terms of Use: https://otooi.com/en/terms Privacy Policy: https://otooi.com/en/privacy

Screenshots

Viglot4 screens
OtoOi Reader4 screens

Verdict

The call

The clearest difference is update cadence: OtoOi Reader at every 3 days against Viglot's weekly. On price, ads, in-app purchases and device support 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. Viglot sells 1 in-app purchase, starting at $17.99 per month and OtoOi Reader sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Viglot ships an update weekly, OtoOi Reader every 3 days. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.

Scorecard1 real difference Ā· 5 level
Viglot versus OtoOi Reader: the parameters behind the verdict, then further details
ParameterViglotOtoOi Reader
PriceFreeFree
Update frequencyWeeklyEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.415.0 — better
Further details — not scored
Size59 MB29 MB
Age rating4+12+
DeveloperViktor PergjokaYutaka Imai

In-app purchases

1 purchases

Viglot

Subscriptions1
  • Premium$17.991 Month
2 purchases

OtoOi Reader

Subscriptions2
  • Monthly plan7 Days trial$2.991 Month
  • Annual plan7 Days trial$24.991 Year

Questions

Is Viglot free?
Viglot is free to download, with in-app purchases available.
Is OtoOi Reader free?
OtoOi Reader is free to download, with in-app purchases available.
Do Viglot or OtoOi Reader have ads?
Neither Viglot nor OtoOi Reader shows ads.
Which is updated more often, Viglot or OtoOi Reader?
Viglot ships an update weekly, and OtoOi Reader every 3 days. Most recently, Viglot was updated on November 5, 2026 and OtoOi Reader on November 6, 2026.

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