# OpenCup vs Sampling Calculator Lite

The clearest difference is price: Sampling Calculator Lite at Free against OpenCup's $9.99. Sampling Calculator Lite also leads on in-app purchases (none vs 7) and iOS requirement (13.1 vs 18.6). On update cadence, ads and device support there is nothing between them.

Sampling Calculator Lite is free to download; OpenCup costs $9.99 up front. OpenCup sells 7 one-off in-app purchases. Sampling Calculator Lite asks for nothing beyond the download.

OpenCup ships an update every 27 months, Sampling Calculator Lite every 14 months. The most recent releases landed on October 3, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | OpenCup | Sampling Calculator Lite |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | — | **[3.0 (3 ratings)](https://appshunter.io/ios/app/sampling-calculator-lite/id1312060456/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 27 months | **Every 14 months** |
| Monetization | — | Free |
| Size | 16 MB | 1 MB |
| Requires iOS | 18.6 | **13.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Artisan Coffee Group Inc](https://appshunter.io/developer/1093524413) | [Juan Manuel Alfredo Sanchez](https://appshunter.io/developer/1304811061) |

## What reviewers say

### OpenCup

[App page](https://appshunter.io/ios/app/opencup/id1093524414)

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Free Starter Evaluation Credits | Free | one-time |
| 10 Evaluation Credits | $9.99 | one-time |
| 20 Evaluation Credits | $18.99 | one-time |
| 40 Evaluation Credits | $36.99 | one-time |
| Monthly Plus Evaluation | $99.99 | one-time |
| Weekly Plus Evaluation | $249.99 | one-time |
| Daily Plus Evaluation | $399.99 | one-time |


### Sampling Calculator Lite

[App page](https://appshunter.io/ios/app/sampling-calculator-lite/id1312060456)

This tool helps calculate sampling plans based on ANSI/ASQ Z1.4 2013 and MIL-STD-105E standards. It assists in determining sampling size codes and inspection levels for quality control processes.

**Highlights:** ANSI/ASQ Z1.4 2013 compliance, MIL-STD-105E compliance, Single sampling size calculation, Normal and Reduced inspection, AQL range from 0.065 to 15, Supports size code letters I, II, and III

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OpenCup free?

OpenCup costs $9.99, and also offers in-app purchases.

### Is Sampling Calculator Lite free?

Sampling Calculator Lite is free to download, with no in-app purchases.

### Do OpenCup or Sampling Calculator Lite have ads?

Neither OpenCup nor Sampling Calculator Lite shows ads.

### Which is updated more often, OpenCup or Sampling Calculator Lite?

OpenCup ships an update every 27 months, and Sampling Calculator Lite every 14 months. Most recently, OpenCup was updated on October 3, 2026 and Sampling Calculator Lite on October 1, 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.*