Simple PDF vs Mathify
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Simple PDF
This application allows users to view, annotate, and edit PDF documents with ease. Features include document management, OCR capabilities, and a built-in scanner. It's designed for students and professionals to stay productive on the go.
- View, annotate, and edit PDFs
- Full-text search and navigation
- Free-draw and text box annotation
- Page reordering and PDF merging
- Scan documents with built-in camera
- OCR for text extraction
- Home screen widget for quick access
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Simple PDF Reader is a powerful, fast, and beautifully designed app for viewing, annotating, and editing your PDF documents — all in one place. Whether you're a student, professional, or just organizing paperwork, Simple PDF Reader keeps you productive on the go. Key Features: - Viewing & Navigation Smooth, fast PDF rendering with page thumbnail scrubber Table of contents (outline) and bookmarks for quick navigation Full-text search across the document Auto-scroll with adjustable speed for hands-free reading - Annotation & Drawing Free-draw with pen and highlighter tools Add text boxes anywhere on the page Insert and position signatures with drag & resize handles Eraser, undo, and redo support - Document Management Reorder and delete pages in the page editor Merge multiple PDFs into one - Scan paper documents with the built-in document camera Import PDFs from Files, iCloud, and other apps via share extension - OCR Extract text from scanned or image-based PDFs - Home Screen Widget Quick access to recently opened documents from your Home Screen - Dark Mode supported
Mathify
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Mathify is a fast, focused calculator for iPhone and iPad. Ask the AI calculator a question in plain language or open a dedicated native calculator for math, finance, conversions, dates, fitness, business, and more. Native calculations run on-device, update as you type, and keep long expressions easy to review without taking over the screen. AI answers show the formula, working, assumptions, and a clear result. Your history stays on your device. The app ships without ads, accounts, tracking SDKs, or blog content. Available in the same 28 languages as Mathify web; the AI calculator answers in your language, and some calculator field labels are still English while translation continues. General wellness estimates are clearly marked as educational planning tools and are not medical advice. Clinical dosing, medication, vaccination, blood-alcohol, drug half-life, and gambling tools are not included in this launch. Privacy policy: https://mathify.one/privacy Terms of Use (EULA): https://mathify.one/terms Support: https://mathify.one/en/contact
Screenshots
Verdict
Simple PDF and Mathify are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Simple PDF | Mathify |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (4 ratings) — better | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 3 weeks | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.6 | 16.4 — better |
| Further details — not scored | ||
| Size | 12 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | Chang Keun Jung | Vinayak Dhadda |
In-app purchases
Simple PDF
No in-app purchases
Mathify
No in-app purchases
Questions
Is Simple PDF free?
Is Mathify free?
Do Simple PDF or Mathify have ads?
Other comparisons
