Comparison

Sampling Calculator vs SnapScanner+ PDF, Docs & Cards

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Sampling Calculator

This tool helps calculate sampling plans based on ANSI/ASQ Z1.4 and MIL-STD-105E standards. It supports various sampling size code letters and AQLs for normal, tightened, and reduced inspections. It serves as an aid to understanding and applying these quality control standards.

Highlights
  • ANSI/ASQ Z1.4 2013 compliance
  • MIL-STD-105E compliance
  • Single sampling size code letters
  • Normal, Tightened, and Reduced inspection
  • AQLs from 0.065 to 15
Features
Read full description

The sampling calculator conforms to ANSI/ASQ Z1.4 2013 and MIL-STD-105E Standards. NOTE: This calculator may be used as an aid to faster calculate the sampling plan needed, and always in conjunction or with the basic knowledge of the ANSI/ASQ Z1.4 standard. It does not replace the standards mentioned above. The sampling calculator covers single sampling size code letters I, II, III, S1, S2, S3 and S4. Normal, Tightened and Reduced with AQLs from 0.065 to 15.

About

SnapScanner+ PDF, Docs & Cards

Transform your device into a powerful document and QR code scanner. Utilize AI-powered features for precise framing, automatic enhancement, and perspective correction. Organize, export, and securely share your scanned content with ease.

Highlights
  • AI-powered document scanning
  • Built-in QR & barcode scanner
  • Automatic perspective correction
  • Smart organization and search
  • Export to PDF and image formats
  • Local and secure document storage
Features
Read full description

SnapScanner – Your AI-Powered Document & QR Scanner Turn your iPhone into a powerful scanner. SnapScanner captures crisp, professional-looking scans, reads the text on every page, and keeps all your documents organized, private and ready to share. KEY FEATURES: Smart Document Scanning • Automatic edge detection and perspective correction • Multi-page scanning in one session • Import photos from your library, and documents are detected and straightened automatically • Great for receipts, contracts, notes, forms, ID cards and more Edit Every Page • Crop edges by hand with precise corner handles • Filters: Original, Enhanced, Grayscale and Black & White • Apply a filter to one page or the whole document • Rotate and reorder pages with drag and drop • Non-destructive editing: re-crop or change filters anytime without losing quality Text Recognition (OCR) • Extract text from any scan, then select, copy and share it • Create searchable PDFs: find and copy text inside exported files • Search your documents by the words written in them, not just by name Markup & Signatures • Draw, write and highlight directly on pages • Create your signature once and sign documents in seconds • Saved signatures are ready to reuse anytime AI Business Card Scanner • Scan business cards and extract name, phone, email, company and more • Review and edit details before saving • Save to Contacts or share as a vCard QR & Barcode Tools • Scan QR codes and barcodes instantly, from the camera or a photo • Copy or share scanned content in one tap • History of scanned codes for quick access • Create your own QR codes with custom colors and logos Smart Organization • Folders to keep documents tidy • Move documents between folders easily • Sort by name or date, in grid or list view • Quick access to recent documents Export & Sharing • Export as PDF, images or one long image • Customizable PDFs: page size, orientation, margins, page numbers and background • Choose export quality for smaller files or full resolution • Password-protect your PDFs • Share via email, messaging apps, AirDrop or cloud storage Privacy & Security • Documents are stored on your device • Lock the app with Face ID, Touch ID or your passcode • PDF passwords are kept safely in the iOS Keychain Additional Features • Dark mode and light mode • Available in 16 languages • Regular updates and improvements Perfect for: • Students and educators • Business professionals and office workers • Freelancers signing contracts on the go • Home organization and personal paperwork Download SnapScanner today: scan, edit, sign and organize your documents, all in one place!

Screenshots

Sampling Calculator2 screens
SnapScanner+ PDF, Docs & Cards4 screens

Verdict

The call

The clearest difference is review sentiment: Sampling Calculator at 50% against SnapScanner+ PDF, Docs & Cards's 0%. Sampling Calculator also leads on rating (5.0 vs 1.0) and iOS requirement (15.6 vs 17.6). SnapScanner+ PDF, Docs & Cards's advantage is update cadence (weekly vs every 16 months) and price ($1.99 vs $5.99). On ratings volume, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Sampling Calculator costs $5.99 and SnapScanner+ PDF, Docs & Cards $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Sampling Calculator holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 50% of Sampling Calculator's written reviews are positive against 0% of SnapScanner+ PDF, Docs & Cards's.

UpkeepUpdate frequency

Sampling Calculator ships an update every 16 months, SnapScanner+ PDF, Docs & Cards weekly. The most recent releases landed on September 28, 2026 and October 8, 2026 respectively.

Scorecard5 real differences · 5 level
Sampling Calculator versus SnapScanner+ PDF, Docs & Cards: the parameters behind the verdict, then further details
ParameterSampling CalculatorSnapScanner+ PDF, Docs & Cards
Price$5.99$1.99 — better
Rating5.0 (1 ratings) — better1.0 (1 ratings)
Positive reviews50.0% of reviews — better0.0% of reviews
Number of ratings11
Update frequencyEvery 16 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.6 — better17.6
Further details — not scored
Size3 MB10 MB
Age rating4+4+
DeveloperJuan Manuel Alfredo SanchezRoxwin Vietnam Technologies Company Limited

Customer experience

Sampling Calculator

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

SnapScanner+ PDF, Docs & Cards

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Sampling Calculator

No in-app purchases

None

SnapScanner+ PDF, Docs & Cards

No in-app purchases

Questions

Is Sampling Calculator free?
Sampling Calculator costs $5.99, with no in-app purchases.
Is SnapScanner+ PDF, Docs & Cards free?
SnapScanner+ PDF, Docs & Cards costs $1.99, with no in-app purchases.
Which has better reviews, Sampling Calculator or SnapScanner+ PDF, Docs & Cards?
Sampling Calculator is rated higher. Sampling Calculator averages 5.0 out of 5 from 1 ratings, while SnapScanner+ PDF, Docs & Cards averages 1.0 from 1 ratings.
Do Sampling Calculator or SnapScanner+ PDF, Docs & Cards have ads?
Neither Sampling Calculator nor SnapScanner+ PDF, Docs & Cards shows ads.
Which is updated more often, Sampling Calculator or SnapScanner+ PDF, Docs & Cards?
Sampling Calculator ships an update every 16 months, and SnapScanner+ PDF, Docs & Cards weekly. Most recently, Sampling Calculator was updated on September 28, 2026 and SnapScanner+ PDF, Docs & Cards on October 8, 2026.

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