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Dualsub

Dualsub - YouTube Subtitle Translator

Translate and display dual subtitles on YouTube and other video websites.

★★★☆☆2.8 (477) · 100k+ users
Free
Website ↗ Chrome Web Store ↗
what mrrlens sees
MRR · No price listedNo price in the listing
Opportunity—
Buyer threads · 30 d0
“Went through all the hassle of verification and setting up an API key and it just returns the error that it doesn't recognise the source language.”
#1 complaint · Bugs/Reliability · 71% of complaints read · analysed Oct 29, 2026 · source

01Revenue

No price in the listing

Store data from the Chrome Web Store listing, refreshed daily. Updated 5 h ago.

02Why users leave Dualsub

Bugs/Reliability5 reviews · 71%

Users hit API-key verification and source-language errors; AI translation triggers bot checks; extension reportedly stops working, making setup unwieldy and non-functional.

“Went through all the hassle of verification and setting up an API key and it just returns the error that it doesn't recognise the source language.” source ↗
1 more complaint, with verbatim quotesIncluded in the day pass and Pro.
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Sample: 7 recent complaints (1–3★ reviews) · clustered Oct 29, 2026 · complaints from Nov 2025–Aug 2026, almost all in the last 24 months · each review labelled by a model, quotes verbatim

03How to build a better Dualsub

Build difficultyMediumRelies on YouTube caption access, translation APIs, and browser-store approval; no payments, hardware, or network effects.
Three build ideas that answer these complaintsIncluded in the day pass and Pro.
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04Who wants a better Dualsub

0 buyer threads in the last 30 days name Dualsub.

05Questions about Dualsub

How much revenue does Dualsub make?

Dualsub's listing publishes no price and no paid plan, so MRRLens shows no revenue estimate. It may still charge on its own website; a founder can verify the real figure.

What do users complain about most in Dualsub?

Across 7 recent complaints, the most common is bugs/reliability (71%). Users hit API-key verification and source-language errors; AI translation triggers bot checks; extension reportedly stops working, making setup unwieldy and non-functional.

How many people use Dualsub?

Dualsub lists 100k+ users on the Chrome Web Store, rated 2.8 (477).

See the full x-ray of Dualsub

Full 1-star breakdown with verbatim quotes, the build blueprint and every live thread — on every product.