Alternatives

Products that do what Sponge does

Absorb a new language

1RL
Readlang – Learn a language while you surf the web▲178
2015 · readlang.com
2
Nuenki▲198
Learn a language while you browse the web
2024
3
Underline▲133
Expand your vocabulary while you browse the Internet
2022
4
ExplainTXT: Translate & Explain any Text▲154
Highlight any text to instantly translate and explain it.
2025
5
Burning Vocabulary▲95
Learn vocabulary while surfing the web
2019
6
FlipWord▲214
Intelligently integrate language learning into web browsing
2017
7
Wordie▲87
Grow your vocabulary while you browse the web
Apr 2026
8
Toucan 2.0▲322
Learn a new language without even trying
2021
9
Learn Languages with Google Translate▲93
Learn the words you translate with one click
2019
10
Vocab Swap▲74
Learn a language while you browse the internet
2019
11
CapWords▲135
Learn a new language with AI-powered object recognition
2025
12
Letra▲76
Passively learn a new language every time you open a new tab
2020
13
Prismatext▲70
Read a book. Learn a language.
2022
14
Flowlingo▲283
Get fluent in a language through content immersion
2018
15
Lingofable▲107
Language learning, one story at a time
Mar 2026
16
Fluensa▲117
Make the entire internet a space for language learning
2025
17
Readlang▲94
Learn a language by reading
2015
18
Fluent 2.0▲225
An AI language tutor in your browser
2023
19
Linguix▲246
Check grammar instantly in real-time on your favorite sites
2020
20
Wordigo▲105
Browse, learn & share: elevate your language
2023
21
LangRead▲127
Read books, learn languages one word at a time
2025
22
Unacademy Languages App▲209
Actually learn a new language without any of the fuss
2024
23
Backwords▲105
Learn a new language right from your wallpaper
2018
24
Subtly▲266
Learn English with smart subtitles on movies and TV shows
2017

Ranked by how close each launch is in meaning, then by votes. Refine with a description →