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Substital

Substital: Add subtitles to videos and movies

Add captions to any video or movie on Netflix, Youtube or other platforms.

★★★★☆4.2 (3,253) · 400k+ users
Free
Website ↗ Chrome Web Store ↗
what mrrlens sees
MRR · No price listedNo price in the listing
Opportunity—
Buyer threads · 30 d0
“Always just getting an error message.”
#1 complaint · Bugs/Reliability · 3 of 4 complaints read · analysed Oct 30, 2026 · source

01Revenue

No price in the listing

Store data from the Chrome Web Store listing, refreshed daily. Updated 3 d ago.

02Why users leave Substital

Bugs/Reliability3 reviews · 3 of 4

Users report constant error messages and subtitle timing that never syncs, even with the built-in sync feature.

“Always just getting an error message.” source ↗
1 more complaint, with verbatim quotesIncluded in the day pass and Pro.
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Sample: 4 recent complaints (1–3★ reviews) · clustered Oct 30, 2026 · complaints from Oct 2026–Oct 2026, almost all in the last 24 months · each review labelled by a model, quotes verbatim

03How to build a better Substital

Build difficultyMediumSubtitle sync reliability and cross-platform overlays; platform changes and Android permissions increase maintenance.
Three build ideas that answer these complaintsIncluded in the day pass and Pro.
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04Who wants a better Substital

0 buyer threads in the last 30 days name Substital, and 4 more are in the same market.

05Questions about Substital

How much revenue does Substital make?

Substital'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 Substital?

Across 4 recent complaints, the most common is bugs/reliability (3 of 4). Users report constant error messages and subtitle timing that never syncs, even with the built-in sync feature.

What are the best Substital alternatives?

The closest alternatives MRRLens found are Movie Subtitles, CaptionGo and Sublo. The full list, with why users leave, is on the Substital alternatives page.

How many people use Substital?

Substital lists 400k+ users on the Chrome Web Store, rated 4.2 (3,253).

See the full x-ray of Substital

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