# Sampling Calculator vs SnapScanner+ PDF, Docs & Cards

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.

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.

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.

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.

## The numbers

| Metric | Sampling Calculator | SnapScanner+ PDF, Docs & Cards |
| --- | --- | --- |
| Price | $5.99 | **$1.99** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sampling-calculator/id1304811062/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/snapscanner-plus-pdf-docs-and-cards/id6747281151/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Weekly** |
| Monetization | Paid | Paid |
| Size | 3 MB | 10 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Juan Manuel Alfredo Sanchez](https://appshunter.io/developer/1304811061) | [Roxwin Vietnam Technologies Company Limited](https://appshunter.io/developer/1077249023) |

## What reviewers say

### Sampling Calculator

[App page](https://appshunter.io/ios/app/sampling-calculator/id1304811062)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### SnapScanner+ PDF, Docs & Cards

[App page](https://appshunter.io/ios/app/snapscanner-plus-pdf-docs-and-cards/id6747281151)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*