Life & fun · alternatives · 2026

24 alternatives to Sponge

Absorb a new language

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Sponge launched in 2023; newer entries below may have overtaken it.

1. 1
   Fluent▲821

   Learn a new language by browsing the web

   2020 · fluent.co · its alternatives →

2. 2
   AtomicVocab▲91

   Expand your vocabulary, one tab at a time

   2023 · chromewebstore.google.com · its alternatives →

3. 3
   Fluent 1.0▲496

   Learn a new language while you live your life

   2021 · fluent.co · its alternatives →

4. 4GA
   Glossarie – a new, immersive way to learn a language▲363

   Hi HN, For over two years I've been working on an App to learn languages (currently French, Italian and Spanish), together with my partner, a language teacher. I think it is finally ready to share with this community! The idea is to introduce vocabulary and grammar whilst you read eBooks in your own language. I've found that it is easier to remember vocabulary 'in context' and with regular repetition. Plus you don't have to carve out dedicated time for language learning. Other apps require you to build a habit around various exercises or ‘games’, whereas lots of people already read books.…

   2024 · glossarie.app · its alternatives →

5. 5
   Toucan▲595

   Learn a new language while you browse the web.

   2020 · jointoucan.com · its alternatives →

6. 6CE
   Chrome extension that replaces words into a different language▲67

   2016 · alpharabi.us · its alternatives →

7. 7
   Readlang – Learn a language while you surf the web▲178

   Learn any language by reading what you love. Click words to translate, build vocabulary with smart flashcards, and read articles, books, and web pages in 100+ languages. Free to start.

   2015 · readlang.com · its alternatives →

8. 8
   Nuenki▲198

   Learn a language while you browse the web

   2024 · nuenki.app · its alternatives →

9. 9
   Underline▲133

   Expand your vocabulary while you browse the Internet

   2022 · getunderline.io · its alternatives →

10. 10
    BiRead▲302

    An easy tool for instant bilingual reading

    2024 · biread.com · its alternatives →

11. 11
    Vokab▲361

    Learn German with each tab you open

    2024 · learnvokab.com · its alternatives →

12. 12
    ExplainTXT: Translate & Explain any Text▲154

    Highlight any text to instantly translate and explain it.

    2025 · explaintxt.com · its alternatives →

13. 13
    Lexios▲76

    Learn vocabulary effortlessy while browsing the web

    2021 · its alternatives →

14. 14
    Letra▲76

    Passively learn a new language every time you open a new tab

    2020 · chromewebstore.google.com · its alternatives →

15. 15
    Fluensa▲117

    Make the entire internet a space for language learning

    2025 · its alternatives →

16. 16
    FlipWord▲214

    Intelligently integrate language learning into web browsing

    2017 · flipword.co · its alternatives →

17. 17
    Wordie▲87

    Grow your vocabulary while you browse the web

    Apr 2026 · wordie.app · its alternatives →

18. 18
    Burning Vocabulary▲95

    Learn vocabulary while surfing the web

    2019 · burningvocabulary.com · its alternatives →

19. 19KL
    Kontext – Learn new words by watching movies in a foreign language▲138

    Kontext.xyz is for sale on Spaceship. Secure checkout and quick transfer. See all purchase options. No hidden fees.

    2018 · kontext.xyz · its alternatives →

20. 20
    Learn Languages with Google Translate▲93

    Learn the words you translate with one click

    2019 · chromewebstore.google.com · its alternatives →

21. 21
    Vocab Swap▲74

    Learn a language while you browse the internet

    2019 · its alternatives →

22. 22
    CapWords▲135

    Learn a new language with AI-powered object recognition

    2025 · capwords.app · its alternatives →

23. 23
    Prismatext▲70

    Read a book. Learn a language.

    2022 · prismatext.com · its alternatives →

24. 24
    AtomicLanguage▲97

    Habitual language learning - one sentence at a time

    2023 · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →