# sDrives vs VFD Cable Sizing Calc

The clearest difference is in-app purchases: VFD Cable Sizing Calc at none against sDrives's 1. sDrives's advantage is update cadence (every 2 months vs every 5 months) and iOS requirement (12.0 vs 16.5). On price, ads and device support there is nothing between them.

Both are free to download. sDrives sells 1 one-off in-app purchase. VFD Cable Sizing Calc asks for nothing beyond the download.

sDrives ships an update every 2 months, VFD Cable Sizing Calc every 5 months. The most recent releases landed on October 8, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | sDrives | VFD Cable Sizing Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (27 ratings)](https://appshunter.io/ios/app/sdrives-vfd-help/id1238863129/reviews)** | — |
| Number of ratings | **27** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 12 MB | 5 MB |
| Requires iOS | **12.0** | 16.5 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Evgeny Makarenkov](https://appshunter.io/developer/1214502122) | [Southwire Company](https://appshunter.io/developer/440338423) |

## What reviewers say

### sDrives

[App page](https://appshunter.io/ios/app/sdrives-vfd-help/id1238863129)

Access alarm descriptions, troubleshooting guides, and user manuals for Siemens drives. This professional tool provides essential information for commissioning and service, supporting a wide range of drive models.

**Highlights:** Quick alarm description access, Troubleshooting guides, Links to user manuals, Support for multiple Siemens drive models, Multi-language alarm descriptions, In-app purchase to unlock all drives

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Drives | $1.99 | one-time |


### 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 sDrives free?

sDrives is free to download, with in-app purchases available.

### Is VFD Cable Sizing Calc free?

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

### Do sDrives or VFD Cable Sizing Calc have ads?

Neither sDrives nor VFD Cable Sizing Calc shows ads.

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

sDrives ships an update every 2 months, and VFD Cable Sizing Calc every 5 months. Most recently, sDrives was updated on October 8, 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.*