Idiom: AI Fashion Translation vs LangSEO: AI Translation App
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 13, 2026 for Idiom, Oct 13, 2026 for LangSEO.
The short answer
- Both list a free plan. Paid plans start at $14/month for Idiom and $15/month for LangSEO.
- Idiom lists 6 features LangSEO’s listing doesn’t mention, including Auto-redirect, Auto-sync translations, Language switcher.
Head to head
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Basic
- · 1 language
- · 3,000 translated words
- · Access to all language selector styles
- · Auto-translate new content
- · Country-specific translations
- · Fashion glossary and brand voice
Starter
- · 2 languages
- · 20,000 translated words
- · Everything in Basic
Growth
- · 5 languages
- · 60,000 translated words
- · Everything in Starter
- · Priority support
Pro
- · 10 languages
- · 400,000 translated words
- · Everything in Growth
Free
- · 1 languages
- · 400K chars (≈67K words) / month
- · Email support
- · Multilingual SEO (URLs + meta)
- · Preview & glossary control
- · Pure AI translation (GPT)
Starter
- · 2M chars (≈333K words) / month
- · 5 languages
- · Daily auto-translation
- · Email support
- · Multilingual SEO (URLs + meta)
- · Preview & glossary control
Growth
- · 10 languages
- · 8M chars (≈1.3M words) / month
- · Daily auto-translation
- · Feature voting
- · Multilingual SEO (URLs + meta)
- · Preview & glossary control
Business
- · 20 languages
- · 30M chars (≈5M words) / month
- · Daily auto-translation
- · Multilingual SEO (URLs + meta)
- · Preview & glossary control
- · Priority feature voting
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureSelling abroad means your product names, fabrics and fits need to make sense to shoppers in their language. Idiom uses AI guided by a fashion glossary and your brand voice to translate your store. You choose the tone, the form of address and the regional variant of each language, and add custom terms or words to leave untranslated. Every translation can be reviewed and edited by hand.
Generic translators translate words. LangSEO understands context. It analyzes your products, industry, and brand voice to create natural, context-aware translations — not one-size-fits-all output. Translate products, collections, pages, blogs, policies, and metafields into any language. Localize tone, formality, and conventions for each language.
- AI translation guided by a fashion glossary and your brand voice
- Adapt each language by region and protect terms you never want translated
- Review and edit any translation by hand, without the AI overwriting it
- New products, pages and menus are translated automatically
- AI-native translation with GPT-4o — understands your business context
- 19+ content types: products, collections, pages, blogs, policies & more
- SEO-optimized: translates meta titles, descriptions & URL handles
- Glossary control: protect brand names and enforce consistent terms
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  LangSEO | |
|---|---|---|
| Detected stores | Not published | Not published |
| Net store change, 28 days | Not enough data | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Not published |
| Top store countries | Not published | Not published |
Reviews
| Measure | LangSEO | |
|---|---|---|
| App Store rating | Not published | 5.0 ★ |
| App Store reviews | Not published | 5 |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
FAQ
Idiom and LangSEO: common questions
- Is Idiom or LangSEO cheaper?
- Both list a free plan. Paid plans start at $14/month for Idiom and $15/month for LangSEO. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- What features does each app list that the other doesn’t?
- Idiom lists 6 the others don’t mention, such as Auto-redirect, Auto-sync translations, Language switcher, Manual translation. LangSEO lists 1 the others don’t mention, such as Professional translation. A feature missing from a listing may still be supported; this compares what each App Store listing says.
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Nov 13, 2026 for Idiom, Oct 13, 2026 for LangSEO; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Nov 13, 2026 for Idiom, Oct 13, 2026 for LangSEO. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.