ReadOn vs Graspd
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ReadOn
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ReadOn – your companion for reading in new languages without breaking your flow. Scan book pages and articles, tap words for instant translations, and keep reading without constantly switching to a dictionary. ReadOn helps you close the “dictionary gap” so you can stay immersed in the text while naturally building vocabulary. Use Word-by-word mode for quick lookups or Deep Read mode for richer explanations and context. View extracted text, copy what you need, save important words, and grow your personal vocabulary as you read. With support for 50+ languages, ReadOn helps you learn faster from real books, manga, articles, and notes. Whether you are studying for exams, improving your reading fluency, or simply enjoying content in a new language, ReadOn helps you read more, understand more, and stop less. Subscription and Trial: ReadOn operates on a subscription model. Some features require users to purchase premium features. Premium features: • Unlimited text scanning (scan and save unlimited books and articles) • Advanced AI analysis (intelligent insights on your reading) • Cloud sync (access your library across devices) • Feature requests (send in ideas and request improvements) Free Trial: We offer a 3-day free trial period for new users. During this trial, you have full access to all premium features. Your subscription will automatically begin after the trial period ends unless you cancel before the trial expires. Automatic Renewal: Your subscription will automatically renew unless you cancel at least 24 hours before the current subscription period ends. You can manage your subscription and turn off auto-renewal in your App Store account settings. Cancellation: You may cancel your subscription at any time through your App Store account. If you cancel during the trial period, you will not be charged. If you cancel after being charged, you will continue to have access until the end of your current billing period. We reserve the right to change the pricing, subscription terms, or benefits associated with in-app purchases. Any such changes will be communicated through the app or on our website. For a detailed breakdown of subscription options, including how to manage or cancel your subscription, please visit our Privacy Policy and Terms of Service pages: Terms of Service: http://tos-privacy.lucas-goldner.com/read-on/terms-of-service.html Privacy Policy: http://tos-privacy.lucas-goldner.com/read-on/privacy.html
Graspd
Instantly generate personalized AI-powered courses on any topic or from uploaded PDFs. Engage with interactive lessons, adaptive quizzes, and AI explanations to master subjects at your own pace. Track your progress with detailed insights and achievement badges.
- AI-generated courses from any topic or PDF
- Interactive lessons with AI explanations
- Adaptive quizzes with detailed feedback
- Spaced repetition for retention
- Progress tracking and achievement badges
- Support for LaTeX, HTML, and Markdown
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Type any topic. Get a full course in seconds. Graspd uses AI to instantly generate structured, personalized courses. Complete with lessons, knowledge checks, and adaptive quizzes so you can master anything on your own terms. HOW IT WORKS Create Enter any topic or upload a PDF. Graspd's AI builds a complete multi-lesson curriculum with structured sections, inline assessments, and conversational quizzes — all tailored to your experience level. Learn Work through rich lessons at your own pace. Content includes full support for mathematical equations, formatted text, and code. Highlight any passage and tap "Ask Graspd" to get instant AI explanations, examples, or deeper context without leaving the lesson. Review Reinforce what you've learned with chat-style AI quizzes that feel like a conversation, not a test. Inline knowledge checks appear throughout lessons to keep you engaged. Spaced repetition scheduling surfaces the right material at the right time for long-term retention. Track See your growth in a comprehensive insights dashboard. Monitor your day streak, quiz scores, pass rates, topic mastery, and learning velocity. Earn achievement badges and milestones as you progress. Discover your unique learner archetype based on your study patterns. DESIGNED FOR REAL LEARNING - AI-generated courses from any topic or PDF in seconds - Ask Graspd: highlight text and ask AI to explain, give examples, or go deeper - Adaptive difficulty: beginner, intermediate, or advanced - Conversational AI quizzes with detailed scoring and feedback - Spaced repetition for science-backed retention - Rich content with LaTeX math, HTML, and Markdown support - Day streaks, badges, milestones, and learner archetypes - Full progress tracking across all your courses - Beautiful native design with Dark Mode support - Built for iPhone, iPad, and Mac SUBSCRIPTION Graspd offers a free trial so you can experience the full platform before committing. Two flexible plans are available — monthly and annual — both manageable directly through your Apple ID. Cancel anytime. Payment will be charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in Settings > [Your Name] Terms of Service: https://graspd.ai/terms Privacy Policy: https://graspd.ai/privacy
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Verdict
The clearest difference is update cadence: ReadOn at every 6 days against Graspd's fortnightly. ReadOn also leads on iOS requirement (17.6 vs 26.1). 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. ReadOn sells 2 in-app purchases, starting at $4.99 per 7 days and Graspd sells 2 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.
ReadOn ships an update every 6 days, Graspd fortnightly. Both last shipped on October 24, 2026.
| Parameter | ReadOn | Graspd |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (12 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 12 — better |
| Update frequency | Every 6 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.6 — better | 26.1 |
| Further details — not scored | ||
| Size | 72 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Lucas Goldner | Gatlin Farrington |
In-app purchases
ReadOn
- Weekly3 Days trial$4.997 Days
- Yearly3 Days trial$24.991 Year
Graspd
- Founders Monthly14 Days trial$14.991 Month
- Founders Annual14 Days trial$139.991 Year









