Sumi - AI Manga Translator verdict
Sumi is the right pick for a reader who wants to follow Japanese, Korean, or Chinese titles without waiting for official translations, and who cares that the page still looks like a manga page rather than a document with text boxes pasted over it. The free tier is genuinely usable at 5 claimable pages per day, but the web and iOS subscriptions are completely separate, so a reader who switches between phone and browser will pay twice. Anyone who needs bulk export for fan releases or wants a tool that works across every device under one subscription should look elsewhere.
Strengths
Inpainting-plus-retypesetting pipeline produces pages that look drawn rather than overlaid, including vertical Japanese bubble layouts, which most generic image translators do not handle.
Tested and confirmed working on 110 named manga publisher sites, with the Chrome extension translating pages in place on sites like Shonen Jump+ and MANGA Plus without any file upload.
Weaknesses
Web and iOS subscriptions are completely separate with no shared page balance, meaning a reader who uses both the browser and the iPhone app must pay for two independent plans.
Source language support is limited to Japanese, Korean, and Chinese; there is no path to translate, say, a French or Italian doujinshi into English, even though the site mentions such use cases in its marketing copy.
MangaTranslate verdict
MangaTranslate is the clearest choice for studios and developers who need a single tool covering batch translation, an online layout editor, and an API under one roof. On raw per-image cost, though, it is more expensive than open-source or subscription-unlimited rivals, and its credit multiplier system adds friction for casual users. Solo readers who just want to follow a series should look at a cheaper or unlimited-subscription alternative instead.
Strengths
Three-layer product in one tool: batch translation, an online layout editor, and a developer API, which most single-purpose manga translators do not offer together.
Nine named font styles with genre-specific guidance (Comic, Brush, Elegant, Playful, and others) give studios typographic control that goes well beyond a default font drop-down.
Weaknesses
The Ultra model costs 2 credits per page instead of 1, which effectively halves the monthly allowance on any plan and can surprise users who switch models mid-batch without recalculating their budget.
No permanently free tier: the 10 trial credits are a one-time trial, not a recurring allowance, so ongoing use requires a paid subscription starting at $8/month.
