Scanlet vs Prism Tape Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Scanlet
Transform paper documents into searchable digital files with advanced scanning and OCR capabilities. Easily capture, edit, sign, and share PDFs, organizing your important papers efficiently. Offers cloud sync and quick access features for seamless document management.
- Scan documents, receipts, and IDs
- Automatic edge detection and straightening
- Image to text (OCR) recognition
- Fill and sign PDFs
- Export in PDF, JPG, PNG, or text
- Organize with folders and subfolders
- iCloud sync for iPhone and iPad
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Scanlet turns paper into clean, searchable PDFs in seconds. Point the camera at a page and tap the shutter: Scanlet finds the edges, straightens the page, removes shadows and reads the text, so you can find any scan later by the words on it. SCAN ANYTHING • Documents, contracts, letters, forms, handwritten notes and homework • Receipts and invoices for expenses and taxes • ID cards: a card-shaped guide, front then back, both sides on one page at real size, ready to print or send • As many pages as you like in one PDF; review every page and retake any of them before you save • Capture when you tap the shutter, or let Scanlet take the photo as soon as the page holds still • Import photos and pictures from your library, and PDFs or images from Files; the page is found and cropped automatically CLEAN, READABLE PAGES • Automatic edge detection and perspective correction • Enhance (off, low, medium, high): white paper, no shadows, dark readable text, even in low light • Color, grayscale or black & white • Crop with corner handles, rotate, reorder, delete or add pages any time; every edit can be undone IMAGE TO TEXT (OCR) • Printed and handwritten text is recognized on your iPhone right after you scan • Search your whole library by the words inside your documents • Search inside a document and see the words highlighted on the page • Choose the recognition language, or let Scanlet detect it • Read the text as paragraphs or line by line, then copy, share or translate it • Export searchable PDFs that you can search and copy from on any computer SIGN AND SEND • Fill and sign: draw your signature once and place it on any page • Export as PDF, JPG, PNG or text • Compress PDFs: small files for email and forms, or 300 dpi print quality • Paper size: fit to image, A4, US Letter or US Legal • Save to Files, share to any app, or print • Export favorites: save a format, size and destination once, then export in one tap ORGANIZED AND PRIVATE • Folders and subfolders, favorites, sorting, grid or list • Merge documents, extract pages and duplicate files • Every tool one tap away in the Tools tab • Recently Deleted keeps removed documents for 7, 30 or 90 days • Sync through your private iCloud to your iPhone and iPad, or keep scans on this device only. No account needed • Start a scan from Home Screen and Lock Screen widgets, Control Center, Siri, the Shortcuts app or a long press on the app icon • Find any scan from iPhone Search by the words inside it SCANLET PRO Scanlet is free to use with ads. Scanlet Pro removes all ads and adds: • Face ID lock for single documents or the whole app • Signatures on any page • Password-protected PDFs • AI summaries and questions about your documents, processed on device (on devices that support Apple Intelligence) Scanlet Pro is available as an auto-renewing weekly or yearly subscription, or as a one-time lifetime purchase. Prices are shown in the app before you buy. Payment is charged to your Apple Account when you confirm the purchase. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Manage or cancel them anytime in your Apple Account settings. Any unused part of a free trial is forfeited when you buy a subscription. Terms of Use: https://www.documentscannerapp.com/terms/ Privacy Policy: https://www.documentscannerapp.com/privacy/
Prism Tape Calculator
This app provides a calculator with a paper tape feature, displaying each calculation line above the keys. It offers live result previews, the ability to reuse previous results, and handles complex math with precision. It is designed for privacy with no ads or tracking.
- Persistent paper tape for calculations
- Live result previews as you type
- Tap previous results to reuse
- Full expression visible on screen
- Decimal arithmetic for precise math
- Scientific functions available
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Prism Tape Calculator is a calculator with a paper tape. Every line you enter is printed above the keys, the answer updates as you type, and you can tap any earlier result to use it again — with no ads, no tracking and no subscription. THE TAPE • Every calculation you commit is printed to the tape, newest at the bottom, like an adding machine. • The last few lines stay visible above the display, so you always have context. • Tap any line to drop its result into what you are typing now. • Open the full tape to scroll back through everything, swipe to delete a line, or clear it all. • The tape is stored on your device and is there when you come back. SEE THE WHOLE EXPRESSION • The full expression stays on screen — 1,250 × (1 + 8.25%) — not one number at a time. • The result previews live under it before you press equals, so typos are caught before they cost you. • Backspace removes one key at a time (a whole function like sin( in one go). • Press an operator after equals to keep going from the last answer; ans is always a key away. MATH YOU CAN TRUST • Decimal arithmetic: 0.1 + 0.2 = 0.3, exactly. Money math without floating-point surprises. • Percent that behaves the way people mean it: 200 + 15% = 230, 50 − 10% = 45, 20 × 5% = 1. • Thousands separators, sensible rounding, and scientific notation only when a number really needs it. • Clear error messages instead of a mystery “Error”: divide by zero, unbalanced parentheses, invalid input. SCIENTIFIC WHEN YOU NEED IT • Tap sci (or rotate to landscape) for parentheses, powers, roots, sin, cos, tan, ln, log, factorial, π and e. • Degrees or radians. Implicit multiplication works: 2π and 3(4 + 1) mean what you expect. DESIGNED FOR THE PHONE IN YOUR HAND • Big rounded keys sized to your screen, haptic feedback, light and dark mode. • The whole app is a few megabytes and opens instantly. Works completely offline. • VoiceOver reads the expression and every tape line. Supports Dynamic Type. PRIVATE BY DESIGN • No ads. Ever. • No account, nothing to sign in to. • No analytics, no advertising SDKs, no third-party code. • Nothing leaves your device. Prism Tape Calculator is free and fully unlocked, made by Prism Data Group. — Support: https://prismdatagroup.com/prismtapecalculator/support Privacy Policy: https://prismdatagroup.com/prismtapecalculator/privacy Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Prism Tape Calculator at none against Scanlet's 3. Prism Tape Calculator also leads on ads (none vs shown). On price, rating, ratings volume 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. Scanlet sells 3 in-app purchases, starting at $3.99 per 7 days. Prism Tape Calculator asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Scanlet against 5.0 for Prism Tape Calculator. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
| Parameter | Scanlet | Prism Tape Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Every 14 months | — |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.5 | 17.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | David Krejci | George Field |
Customer experience
Scanlet
Prism Tape Calculator
In-app purchases
Scanlet
- Weekly3 Days trial$3.997 Days
- Yearly Subscription$19.991 Year
- One-time purchase$69.99
Prism Tape Calculator
No in-app purchases
Questions
Is Scanlet free?
Is Prism Tape Calculator free?
Which has better reviews, Scanlet or Prism Tape Calculator?
Do Scanlet or Prism Tape Calculator have ads?
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