NoteCalc vs PDF2box
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NoteCalc
Seamlessly blend note-taking with real-time calculations. Capture ideas, track expenses, and create lists with instant results as you type or speak. Offers smart input features like voice notes and document scanning for enhanced productivity.
- Simultaneous note-taking and calculation
- Instant results as you type
- Voice note input
- Document and receipt scanning
- Expense and budget tracking
- Shopping list creation with automatic totals
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NoteCalc lets you write notes and calculate at the same time — no switching apps. Just type naturally and see results instantly. Capture ideas, lists, budgets, expenses, formulas, and everyday math in one place. Everything stays simple, fast, and organized. WHY NOTECALC Write like normal notes Results appear instantly as you type No buttons, no formulas, no interruptions Clean, fast, and easy to use WHAT YOU CAN DO Track expenses and budgets Create shopping lists with automatic totals Take notes with calculations Do quick daily math without switching apps SMART INPUT FEATURES Voice Notes Speak numbers or notes and get results instantly Scan Documents & Receipts Scan receipts and turn them into editable notes with calculations Type Naturally Just write — calculations appear automatically USE CASES Daily expense tracking Budget planning Shopping lists Study and work notes Quick calculations anytime PREMIUM FEATURES (OPTIONAL) Lock notes for privacy Tags and organization Charts and insights Cloud sync Export options Your notes stay on your device. You stay in control. Privacy Policy: https://nullvoidkage.notion.site/Privacy-Policy-31d5fa80930a8057a60cc6995100de7f Terms of Service: https://nullvoidkage.notion.site/Terms-Of-Service-31d5fa80930a807f954ee0de97ab96f3
PDF2box
This app offers a comprehensive suite of PDF editing and management tools that operate entirely offline. It allows users to merge, split, compress, sign, and convert PDFs, among many other functions, without requiring subscriptions or uploading data.
- Merge and split PDFs
- Compress and resize pages
- OCR for searchable documents
- Sign and watermark PDFs
- Password protection and redaction
- Convert PDFs to images and vice versa
- PDF/A converter
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PDF Toolbox is now PDF2box. PDF2box is a free, all-in-one PDF toolkit for iPhone, iPad, and Mac. Merge, split, compress, sign, scan, watermark, OCR, flatten, and convert PDF/A. All tools are 100% offline with zero data collection. 20+ professional tools, no subscriptions, no ads. ORGANIZE - Merge multiple PDFs into one document - Split PDFs by page range or individual pages - Rotate, reorder, extract, or delete pages OPTIMIZE - Compress PDFs - Resize pages to standard or custom dimensions - Flatten annotations and form fields - Repair PDFs (Repair, sanitize, or normalize damaged or malformed PDFs) CREATE & CONVERT - PDF to Images (PNG, JPEG) - Images to PDF / Camera to PDF - OCR to make scanned documents searchable - PDF/A Converter for archival compliance SECURE - Unlock password-protected PDFs - Add password protection with permissions - Edit or remove document metadata - Redaction EDIT - Add text or image watermarks - Insert page numbers - Sign PDFs with draw, type, or image signatures Every tool runs entirely on your device using Apple's native PDFKit and CoreGraphics. No uploads, no servers, no analytics, no tracking. Your documents never leave your hands.
Screenshots
Verdict
The clearest difference is update cadence: NoteCalc at every 5 days against PDF2box's every 2 weeks. NoteCalc also leads on iOS requirement (16.0 vs 18.1). On price, rating, ratings volume and ads 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. NoteCalc sells 6 in-app purchases, starting at $1.99 per month and PDF2box sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.9 for NoteCalc against 5.0 for PDF2box. Both are backed by a comparable volume of ratings — 11 and 9 respectively.
NoteCalc ships an update every 5 days, PDF2box every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | NoteCalc | PDF2box |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (11 ratings) | 5.0 (9 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 11 — better | 9 |
| Update frequency | Every 5 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, Mac | iPhone, iPad, Mac |
| Requires iOS | 16.0 — better | 18.1 |
| Further details — not scored | ||
| Size | 81 MB | 13 MB |
| Age rating | 9+ | 4+ |
| Developer | Nikko Ferwelo | Yung Kei Simon MA |
Customer experience
NoteCalc
PDF2box
In-app purchases
NoteCalc
- Smart Notes Monthly$1.991 Month
- Smart Notes Monthly$2.991 Month
- Note Calc Yearly$5.991 Year
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- Smart Notes Yearly$7.991 Year
- Smart Notes Lifetime2 variants$5.99
- Unlock Lifetime$12.99
PDF2box
- Small Tip - Coffee$0.99
- Medium Tip - Meal$2.99
- Large Tip - Gift$4.99
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- Generous Tip - Super$9.99









