# sDrives vs PLC Simulator, PLC Trainer

The clearest difference is rating: sDrives at 4.5 against PLC Simulator, PLC Trainer's 3.9. sDrives also leads on review sentiment (100% vs 75%) and iOS requirement (12.0 vs 14.0). PLC Simulator, PLC Trainer's advantage is in-app purchases (none vs 1). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. sDrives sells 1 one-off in-app purchase. PLC Simulator, PLC Trainer asks for nothing beyond the download.

sDrives holds the better App Store score, 4.5 against 3.9. Both are backed by a comparable volume of ratings — 27 and 59 respectively. Written reviews point the same way: 100% of sDrives's written reviews are positive against 75% of PLC Simulator, PLC Trainer's.

Both ship on a similar rhythm, roughly every 2 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | sDrives | PLC Simulator, PLC Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (27 ratings)](https://appshunter.io/ios/app/sdrives-vfd-help/id1238863129/reviews)** | [3.9 (59 ratings)](https://appshunter.io/ios/app/plc-simulator-plc-trainer/id1326500777/reviews) |
| Number of ratings | 27 | **59** |
| Positive reviews | **100.0% of reviews** | 75.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 12 MB | 15 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Evgeny Makarenkov](https://appshunter.io/developer/1214502122) | [David White](https://appshunter.io/developer/911163945) |

## 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 |


### PLC Simulator, PLC Trainer

[App page](https://appshunter.io/ios/app/plc-simulator-plc-trainer/id1326500777)

Learn the fundamentals of Programmable Logic Controllers (PLCs) with an interactive simulator. Experiment with basic programming concepts, including timers, counters, and logic instructions. Save your progress and revisit projects anytime.

**Highlights:** Interactive PLC simulator, Learn PLC basics, Experiment with programming, Save and load programs, Understand logic circuits, User-friendly interface

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is sDrives free?

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

### Is PLC Simulator, PLC Trainer free?

PLC Simulator, PLC Trainer is free to download, with no in-app purchases.

### Which has better reviews, sDrives or PLC Simulator, PLC Trainer?

sDrives is rated higher. sDrives averages 4.5 out of 5 from 27 ratings, while PLC Simulator, PLC Trainer averages 3.9 from 59 ratings.

### Do sDrives or PLC Simulator, PLC Trainer have ads?

Neither sDrives nor PLC Simulator, PLC Trainer shows ads.

### Which is updated more often, sDrives or PLC Simulator, PLC Trainer?

sDrives ships an update every 2 months, and PLC Simulator, PLC Trainer every 2 months. Most recently, sDrives was updated on October 24, 2026 and PLC Simulator, PLC Trainer on October 24, 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.*