CalcSmart vs EPUB2PDF
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CalcSmart
This advanced AI-powered calculator offers instant solutions to complex problems through photos, voice, or handwriting. It provides step-by-step explanations, revolutionary graphing, and financial analysis, making math accessible for students, professionals, and everyday users.
- AI-powered problem solving
- Photo, voice, and handwriting input
- Step-by-step explanations
- Revolutionary graphing
- Financial analysis tools
- Universal language support
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CalcSmart - Upgrade to Intelligent Problem-Solving Experience the calculator of 2050, available today. CalcSmart uses advanced AI to solve complex problems instantly. Take photos, speak equations, or write by hand—get instant solutions with step-by-step explanations. Revolutionary graphing, financial analysis, and universal language support make this the most advanced calculator ever created. The future of mathematics is here. Students - Homework Helper: Solve complex problems with detailed explanations - Exam Preparation: Practice with multiple-choice question recognition - Learning Tool: Understand concepts through step-by-step solutions Professionals - Engineers: Access specialized formulas for electrical, mechanical, and civil engineering - Financial Analysts: Comprehensive financial calculations and projections - Scientists: Advanced mathematical functions and unit conversions - Medical Professionals: Specialized medical formulas and calculations Everyday Users - Personal Finance: Calculate loans, investments, and savings goals - Home Projects: Convert measurements and calculate areas - Shopping: Compare prices and calculate discounts - Travel: Currency conversion and distance calculations Get CalcSmart Today Available on the App Store - Version: 25.10.11 - Compatibility: iOS 15.0+ - Size: Optimized for all devices - Price: Premium value, accessible pricing Download now and experience the future of mathematical problem-solving!
EPUB2PDF
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EPUB to PDF is a simple and fast tool dedicated to converting between EPUB and PDF formats. With just one tap, you can convert your files in seconds. Core Features EPUB to PDF: Convert EPUB ebooks to PDF while preserving the original layout, images, and table of contents. PDF to EPUB: Convert PDF documents to EPUB format for easy reading on ebook readers. One‑tap operation: Select your file, tap convert, and you're done in seconds. Offline support: All conversion happens locally on your device. No file upload required, ensuring your privacy. Use Cases Reading enthusiasts: Convert EPUB to PDF for easy printing or archiving. Professionals: Convert PDF to EPUB to read documents on mobile devices or ebook readers. Students and teachers: Convert educational materials to fit different devices. Download EPUB to PDF Simple, fast, no learning curve. Download now and experience one‑tap conversion. —Subscription Plans & Auto-Renewal Info Flexible Subscription Plans for Every Need! Choose the perfect plan for your goals with our diverse subscription options: * 1 Month: Ideal for project-based users * 1 Year: Best value for committed users —Auto-Renewal Details: * Payment will be charged to your iTunes Account at confirmation of purchase. * Subscriptions are billed weekly, monthly, bi-monthly, quarterly, semi-annually, or annually based on your chosen plan. * Subscriptions auto-renew within 24 hours before the current period ends (except Lifetime). * Renewal charges will be processed within 24 hours before the end of the current period, with the cost depending on your selected plan. * Manage subscriptions or turn off auto-renewal anytime via your Apple ID Account Settings. —Lifetime Membership Perks: * Pay once, unlock all features forever—no renewals, no hassle! Note: * Manage subscriptions at: Settings > [Your Name] > Subscriptions — Privacy Policy please visit: https://docs.qq.com/doc/DREt1SXJkbG9JYUFT * **Terms of use (EULA): * https://docs.qq.com/doc/DREdKR2ZwYUJaa1hr * **Terms of apple please visit: * https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ For support or feedback, contact: hxx_shdt@126.com
Screenshots
Verdict
The clearest difference is price: EPUB2PDF at Free against CalcSmart's $19.99. CalcSmart's advantage is in-app purchases (none vs 3) and update cadence (monthly vs every 3 months). On ads 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
EPUB2PDF is free to download; CalcSmart costs $19.99 up front. EPUB2PDF sells 3 in-app purchases, starting at $3.99 per month. CalcSmart asks for nothing beyond the download.
CalcSmart ships an update monthly, EPUB2PDF every 3 months. The most recent releases landed on September 17, 2026 and September 12, 2026 respectively.
| Parameter | CalcSmart | EPUB2PDF |
|---|---|---|
| Price | $19.99 | Free — better |
| Rating | 5.0 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Monthly — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 14 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Malachi Brown | 乐祥 胡 |
In-app purchases
CalcSmart
No in-app purchases
EPUB2PDF
- EPUB2PDF Premium - 30DAYS$3.991 Month
- EPUB2PDF Premium - 360DAYS$3.991 Year
- EPUB2PDF Premium - lifetime$7.99









