# Drive Diagnostics vs VFD Cable Sizing Calc

The clearest difference is iOS requirement: Drive Diagnostics at 14.0 against VFD Cable Sizing Calc's 16.5. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Drive Diagnostics ships an update every 6 months, VFD Cable Sizing Calc every 5 months. The most recent releases landed on October 14, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Drive Diagnostics | VFD Cable Sizing Calc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 months** |
| Size | 9 MB | 5 MB |
| Requires iOS | **14.0** | 16.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Bonfiglioli SPA](https://appshunter.io/developer/670210180) | [Southwire Company](https://appshunter.io/developer/440338423) |

## What reviewers say

### Drive Diagnostics

[App page](https://appshunter.io/ios/app/drive-diagnostics/id1523617166)

**In-app purchases:** none


### VFD Cable Sizing Calc

[App page](https://appshunter.io/ios/app/vfd-cable-sizing-calc/id6452802915)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Drive Diagnostics free?

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

### Is VFD Cable Sizing Calc free?

VFD Cable Sizing Calc is free to download, with no in-app purchases.

### Do Drive Diagnostics or VFD Cable Sizing Calc have ads?

Neither Drive Diagnostics nor VFD Cable Sizing Calc shows ads.

### Which is updated more often, Drive Diagnostics or VFD Cable Sizing Calc?

Drive Diagnostics ships an update every 6 months, and VFD Cable Sizing Calc every 5 months. Most recently, Drive Diagnostics was updated on October 14, 2026 and VFD Cable Sizing Calc on October 3, 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.*