Products

Underline

Tłumacz, zapisuj i ucz się słownictwa, którego potrzebujesz na co dzień.

getunderline.io Chrome Web StoreEducation / Language Learning

AI Benchmark
Desktop
Mobile
Monthly visits
<5K
Oct 2026
Public revenue
Undisclosed
No public revenue evidence yet
Entry price
Free
No monthly subscription pricing
Creators
Katarzyna Szostak
No social account linked
Launched
4y ago
2022-09-06 · Est.

Traffic

Monthly visitsData through Oct 2026

Marketing moves

Launches, search & content, referrals, promotions
  • Launched on Product HuntLaunch

    Expand your vocabulary while you browse the Internet

    Sep 6, 2022 · 4y agoLaunch page

Store data

Chrome Web Store
Underline
Underline Chrome Web Store

Learn a foreign language with a personalized database of flashcards based on the content you view every day!

Update date not synced
Rating
★ 4.9315 ratings
New ratings last mo
—
Price & IAP
FreeIAP data not synced
Users
711Public store figure

Underline - expand your vocabulary while you browse the Internet. Use in 3 steps: 1. You are browsing foreign language content 2. You select a word you do not understand and click the "U" button 3. Underline will display the translation, allow you to listen to the word pronunciation and save it as a flashcard in the mobile application Underline advantages: - Easy and convenient translation of words directly in the foreign language content - Reliable result matching thanks to the use of contextual translation -The ability to listen to the pronunciation, which will allow you to remember a given word better - Option to save translations as study cards in the mobile application - Access to suggested words on the basis of previously saved flashcards By combining two compatible tools - a browser plug-in and a mobile application, Underline combines the process of searching, translating, saving and learning words, which allows you to learn the vocabulary you really need. Our extension works for Chrome, Opera and Microsoft Edge. In addition to English, we also have languages such as: - Spanish - Ukrainian - German - French - Japanese - Korean - Chinese - and many others Underline works best with our mobile application, so if you want to learn vocabulary, we encourage you to download it! The mobile application is available in both the App Store and Google Play. App Store: https://apps.apple.com/us/app/underline-language-learning/id1571773059 Google Play: https://play.google.com/store/apps/details?id=com.fiszki

Store assets, rating histograms, install tiers, and screenshots are synced from Apple App Store, Google Play, and Chrome Web Store.

Traffic sources

Oct 2026

Traffic breakdown

Channels

  • Organic Search40%
  • Direct35%
  • Referrals8%
  • Social6%
  • Other11%

Countries

No data yet

Search

Domain authority —Domain registered 2020-08-18

KeywordMonthly volume
underline17.7K
dunderline430

Traffic data: Vaneform

Pricing

Pricing page not identified yet, or no public pricing listed.

Pages & changes

Tracked since 2026-07-31

Key pages

Weekly snapshots
getunderline.io/ Snapshot 2026-11-06

Changes

No pricing, plan, or positioning changes detected since tracking started.

Questions & evidence

How much website traffic does Underline get?
Vaneform estimates <5K website visits in 2026-10. Visits can include repeat visits; this estimate measures web traffic separately from paying customers or revenue.Source
What is Underline and what platforms does it support?
Underline is catalogued under Language Learning: Tłumacz, zapisuj i ucz się słownictwa, którego potrzebujesz na co dzień.. Supported platforms: Browser Extension.

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Education / Language Learning

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