LinguaLens vs Speak On.
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LinguaLens
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LinguaLens is your intelligent language companion, powered by advanced AI to provide deep cultural context and comprehensive word insights across 25 languages. KEY FEATURES AI-Powered Definitions Get detailed explanations with cultural context, usage examples, and nuanced meanings. Our AI analyzes each word in depth, providing insights you won't find in traditional dictionaries. Infinite Exploration Discover connections between words through an interactive knowledge graph. Explore related words, synonyms, antonyms, and thematic connections in a visual, intuitive interface. Deep Cultural Context Understand how words are used in different social and historical contexts. Learn the subtle nuances that make you sound like a native speaker. 25 Languages Supported • English, German, Spanish, French, Italian • Japanese, Korean, Chinese, Portuguese, Russian • Indonesian, Turkish, Polish, Dutch, Swedish • Czech, Ukrainian, Romanian, Vietnamese, Danish • Norwegian, Finnish, Greek, Hungarian, Slovak Audio Pronunciation High-quality AI-powered text-to-speech for correct pronunciation in every supported language. Adjustable playback speed to match your learning pace. Grammar Breakdown Detailed grammatical analysis with examples showing how words function in sentences. Perfect for learners who want to understand the mechanics of language. Custom AI Instructions (Plus) Personalize your learning experience by providing custom instructions. Tell the AI about your learning style, proficiency level, or specific interests to get tailored explanations. Available with LinguaLens Plus. Study Collection Save words to your personal collection for review. Build your vocabulary systematically with organized word lists. Gesture Navigation Swipe through your search history effortlessly. Quick access to previously looked-up words. Beautiful Design Modern, tactile UI with 3D button effects and smooth animations. A pleasure to use every day. PLUS SUBSCRIPTION LinguaLens Plus gives you more: - More AI usage - Unlock Advanced Features - Priority Service Choose between weekly, monthly, or annual subscription options. All subscriptions auto-renew unless cancelled 24 hours before the period ends. PERFECT FOR • Language learners at any level • Students studying foreign languages • Travelers wanting to understand local culture • Writers seeking the perfect word • Anyone curious about language and culture WHY LINGUALENS? Unlike traditional dictionaries that simply define words, LinguaLens helps you truly understand them. By combining AI technology with linguistic expertise, we provide the cultural context and nuanced explanations that make language learning meaningful and enjoyable. Transform your language learning experience. Download LinguaLens today. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.instalm.com/privacy-policy
Speak On.
This app focuses on improving English speaking fluency by encouraging longer, more detailed responses rather than just grammatical correctness. It uses AI to evaluate specific expressions and provides feedback to help users speak more confidently and elaborately.
- Unlimited speaking practice
- AI evaluation of specific expressions
- Focus on detailed and practical language
- AI overall feedback
- Progress visualization with scores and history
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Speak On.は、英語を「正す」ためのアプリではありません。 あなたの英語を、長く・具体的に話せるようにするスピーキングトレーニングアプリです。 多くの学習者は、文法の正確さに意識が向きすぎて、十分な量を話せていません。 その結果、正しいけれど短文で表面的な内容に終始してしまい、流暢な印象からは離れてしまう。 Speak On.では、細かいミスを気にするのではなく「どれだけ長く具体的に話せるか」にフォーカスすることで、流暢性向上を狙います。 ■ 主な特徴 ・無限に話せるスピーキングトレーニング ・関係代名詞や深掘り要素(理由や目的の表現)など、具体的で実践的な表現力にフォーカスし、それぞれ個別にAI判別・評価 ・AIによるオーバーオールフィードバック(すぐに確認可能) ・スコアと履歴で成長を可視化 ■ こんな方におすすめ ・英語は勉強してきたけど、話せない ・もっと長くスラスラ話せるようになりたい ・いつも短文ですぐに詰まる ・自分の英語に自信が持てない ・実践的なスピーキング力を伸ばしたい Speak On.は、日本人学習者のために設計されています。 「正しい英語」から「長く、具体的な英語」へ。 あなたのスピーキングを一段引き上げます。 Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: LinguaLens at every 4 days against Speak On.'s every 3 weeks. Speak On.'s advantage is iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support 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. LinguaLens sells 9 in-app purchases, starting at $4.99 per 7 days and Speak On. sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
LinguaLens ships an update every 4 days, Speak On. every 3 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | LinguaLens | Speak On. |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 36.4% of reviews |
| Update frequency | Every 4 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 25 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | 旻 蔡 | Moemi Asada |
In-app purchases
LinguaLens
- LinguaLens Plus Weekly3 Days trial$4.997 Days
- LinguaLens Pro (Weekly)3 Days trial$9.997 Days
- LinguaLens Plus (Monthly)3 Days trial$19.991 Month
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- LinguaLens Pro (Monthly)3 Days trial$39.991 Month
- LinguaLens Plus (Annual)3 Days trial$199.991 Year
- LinguaLens Pro (Annual)3 Days trial$399.991 Year
- LinguaLens 2,500 Credits$1.99
- LinguaLens 6,250 Credits$4.99
- LinguaLens 12,500 Credits$9.99
Speak On.
- Speak On. サブスクリプション マンスリー$9.991 Month
- Speak On. サブスクリプション 6ヶ月$49.996 Months
- Speak On. サブスクリプション 1年$69.991 Year









