WhichWeek vs ReflowPDF
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WhichWeek
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WhichWeek is the fastest way to know your ISO week number. Open the app and your current ISO week number is front and center — bold, clear, and impossible to miss. No digging through a calendar. No mental arithmetic. Just the week number. WEEK VIEW • Your current ISO week number, large and legible • The exact date range for that week (Monday to Sunday) • Step forward or back through weeks and years with the stepper controls • Tap Today to jump straight back to the current week • Leap year indicator so you never lose track of the extra day DAYS VIEW • Pick any two dates and instantly see the number of days between them • Broken down into full weeks and remaining days • Perfect for project planning, countdowns, and date arithmetic DESIGNED WITH CARE • Pure SwiftUI — fast, native, and responsive • Supports Dynamic Type for accessibility • Full Dark Mode and Light Mode support • Works in portrait and landscape • Available on iPhone, iPad, Mac, and Apple Watch ISO WEEK NUMBERS ISO 8601 defines week numbering used widely in business, finance, logistics, and project management across Europe and beyond. Week 1 is the week containing the first Thursday of the year. WhichWeek follows this standard precisely. NO ADS. NO TRACKING. NO SUBSCRIPTIONS. WhichWeek is a one-time purchase. No accounts required, no data collected, no network requests made.
ReflowPDF
Transform scanned PDFs and regular documents into easily readable text with adjustable formatting. Seamlessly switch between a reflowed reading mode and the original document for verification. Process documents privately on your device with no uploads or tracking.
- Reflow scanned and text-based PDFs
- Adjust font size, typeface, and line spacing
- Switch between Reader Mode and original PDF
- Search text and add bookmarks
- Export recognized text as TXT
- Create searchable PDFs
- On-device OCR and processing
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Read scanned PDFs without zooming. Scanned pages should be as comfortable to read as any article. ReflowPDF turns scanned books, papers, archives, and regular PDFs into clean, reflowed text designed for your iPhone and iPad. Import a document, process it on device, and read without constantly zooming or panning. READER MODE FOR PDFS • Reflow scanned and text-based PDFs into adjustable text • Choose font size, typeface, line spacing, and reading theme • Keep your reading progress and return where you left off CHECK THE ORIGINAL ANY TIME • Move between Reader Mode and the source PDF • Jump from a paragraph to its original page for quick verification • Search text, add bookmarks, and navigate document headings PRIVATE BY DESIGN • OCR and document processing happen on your device • Your PDFs and recognized text are not uploaded • No account, in-app analytics, advertising, or tracking USE YOUR RESULTS • Export recognized text as TXT • Create a searchable PDF while preserving the original pages • On supported devices, generate an on-device summary with Apple Intelligence The free version includes full processing for three standard documents. An optional one-time Lifetime unlock removes document limits and unlocks full large-document processing and export. OCR and document structure accuracy depend on scan quality, language, and page layout.
Screenshots
Verdict
The clearest difference is in-app purchases: WhichWeek at none against ReflowPDF's 1. On price, ads, device support and iOS requirement 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. ReflowPDF sells 1 one-off in-app purchase. WhichWeek asks for nothing beyond the download.
| Parameter | WhichWeek | ReflowPDF |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.3 (3 ratings) — better |
| Positive reviews | — | 66.7% of reviews |
| Number of ratings | — | 3 — better |
| Update frequency | — | Fortnightly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.4 | 26.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Arthur Kahwa | 亚雄 邹 |
In-app purchases
WhichWeek
No in-app purchases
ReflowPDF
- ReflowPDF Lifetime$4.99









