LangCat vs TapLex
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LangCat
Translate any text on your screen instantly by taking a screenshot. The app seamlessly integrates translated text inline, maintaining the original style. Enjoy private, offline translations for social media, travel apps, and comics.
- Instant inline translation via screenshots
- Supports 16+ languages
- 100% offline and private translation
- Preserves original text style
- Share translated content easily
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LangCat - Easy Screen Translations Ever found yourself staring at an app in a language you don’t understand? Whether you’re exploring social media, navigating an app while traveling, or diving into a foreign comic or manga, LangCat has your back! Simply take a screenshot, and this magical app translates anything—text, UI, images, or whatever’s displayed on your screen—inline. With just a tap, you’ll see the translated text seamlessly integrated, preserving the same style, color, and size as the original. It’s effortless, instant, and completely offline. Your Privacy Matters: All translations happen directly on your device—no data is sent to the cloud. Your screenshots and personal information stay completely private and secure. Why You’ll Love It: • Instant Translation: Select a screenshot, and voilà—translated text appears inline, no more guessing! • Supports 16+ Languages: Translate content across a wide range of languages with ease. • Full Privacy: Translation is 100% offline, ensuring your data stays on your device. • Authentic Look: Translated text mirrors the original font size and color for a natural feel. • Share with Ease: Translate and share directly via the share sheet. Perfect for social media adventurers, globetrotters tackling foreign apps, or manga/comic lovers uncovering new stories, LangCat is your pocket-sized language genius. Download now and translate everything—privately and instantly
TapLex
This app uses AI to help you understand foreign language books. It provides contextual definitions, breaks down complex sentences, and saves new vocabulary for review. Enjoy a personalized reading experience with adjustable layouts and offline access.
- AI contextual word definitions
- Grammatical sentence breakdown
- Smart vocabulary builder
- EPUB format support
- Offline reading
- Customizable reading layout
- Cross-device sync (Premium)
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Transform the way you read and learn languages with TapLex. Reading foreign language books shouldn't be a struggle of constantly switching to a dictionary app. TapLex is a powerful, beautifully designed e-book reader infused with cutting-edge AI technology, designed specifically for language learners, students, and avid readers. Unlike standard dictionaries, our AI doesn't just translate words—it understands the context. Whether you are tackling a complex novel or a professional document, TapLex acts as your private reading tutor. CORE AI FEATURES: • Contextual interpretation: No more rote memorization of dry dictionary entries. Simply select an unfamiliar word or phrase, and AI will analyze the surrounding text to provide the most precise, contextually relevant definition. • Grammatical Breakdown of Complex Sentences: Struggling to decipher sentences with intricate structures? With a single tap, AI analyzes the grammatical framework and key phrases, delivering an accurate, context-aware translation of the entire sentence. • Smart Vocabulary Builder: Any new words encountered during reading—along with their AI-generated definitions and original context—are automatically saved to a built-in vocabulary list, making it easy to review and reinforce your learning later.• Smart Vocabulary Book: New words encountered while reading, along with AI definitions and the original context, can be automatically saved to the built-in vocabulary book for easy review and reinforcement later. PREMIUM READING EXPERIENCE: • Format support: Perfectly parses and renders EPUB format documents (more formats will be supported in the future). • Favorites, Notes, and Vocabulary: Supports highlighting and annotation, allowing you to record your reading insights and inspirations anytime. • Personalized Layout: Freely adjust fonts, font sizes, line spacing, and background colors (including Dark Mode) to protect your eyesight. • Pure Local Reading: Files are processed locally on your device, ensuring you can read without interruption—even in offline environments. • Cross-Device Sync: Synchronize your library, reading progress, and data across multiple iOS devices (requires Premium). • Table of Contents Navigation, Bookmarks, Full-Text Search, Deep Reading Features... Discover even more awaiting your exploration. Stop translating. Start understanding. Download TapLex and elevate your reading journey! Privacy Policy: https://cool-web.win/taplex-en.html#privacy Terms of Service: https://cool-web.win/taplex-en.html#terms
Screenshots
Verdict
The clearest difference is rating: TapLex at 5.0 against LangCat's 3.7. LangCat's advantage is update cadence (every 2 days vs every 8 days) and ratings volume (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. LangCat sells 1 one-off in-app purchase and TapLex sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
TapLex holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively.
LangCat ships an update every 2 days, TapLex every 8 days. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.
| Parameter | LangCat | TapLex |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 2 days — better | Every 8 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 18.0 | 17 — better |
| Further details — not scored | ||
| Size | 1 MB | 35 MB |
| Age rating | 4+ | 17+ |
| Developer | UNI HQ LLC | 伟 胡 |
Customer experience
LangCat
TapLex
In-app purchases
LangCat
- LangCat Plus$5.99
TapLex
- TapLex Premium 1 Month7 Days trial$2.991 Month
- TapLex Premium 12 Months1 Month trial$19.991 Year









