# Vacuums vs Grain SA

The clearest difference is update cadence: Grain SA at monthly against Vacuums's every 6 months. Grain SA also leads on iOS requirement (10.2 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Vacuums ships an update every 6 months, Grain SA monthly. The most recent releases landed on July 8, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Vacuums | Grain SA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/vacuums/id1241468166/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Monthly** |
| Monetization | Free | — |
| Size | 5 MB | 98 MB |
| Requires iOS | 17.6 | **10.2** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Amnaj Sriwilai](https://appshunter.io/developer/1241468165) | [4SIGHT SYSTEMS (PTY) LTD](https://appshunter.io/developer/656095757) |

## What reviewers say

### Vacuums

[App page](https://appshunter.io/ios/app/vacuums/id1241468166)

This app assists automation engineers and systems designers in calculating parameters for vacuum handling systems. It helps determine workpiece requirements, holding force, and optimal dimensions for vacuum cups and hoses.

**Highlights:** Workpiece calculation, Holding force calculation, Vacuum cup diameter calculation, Vacuum hose diameter calculation, Evacuation time estimation, Pump suction capacity calculation, Vacuum unit converter

**In-app purchases:** none


### Grain SA

[App page](https://appshunter.io/ios/app/grain-sa/id1665831580)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Vacuums free?

Vacuums is free to download, with no in-app purchases.

### Is Grain SA free?

Grain SA is free to download, with no in-app purchases.

### Do Vacuums or Grain SA have ads?

Neither Vacuums nor Grain SA shows ads.

### Which is updated more often, Vacuums or Grain SA?

Vacuums ships an update every 6 months, and Grain SA monthly. Most recently, Vacuums was updated on July 8, 2026 and Grain SA on September 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.*