# DFA SCADA vs RackLink Discovery

The clearest difference is update cadence: DFA SCADA at every 4 months against RackLink Discovery's every 36 months. RackLink Discovery's advantage is iOS requirement (12.0 vs 15.0). On price, rating, review sentiment and ratings volume there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for DFA SCADA against 5.0 for RackLink Discovery. Both are backed by a comparable volume of ratings — 6 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

DFA SCADA ships an update every 4 months, RackLink Discovery every 36 months. Both last shipped on June 1, 2026.

## The numbers

| Metric | DFA SCADA | RackLink Discovery |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (6 ratings)](https://appshunter.io/ios/app/dfa-scada/id1567843374/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/racklink-discovery/id1574990700/reviews) |
| Number of ratings | **6** | 4 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 36 months |
| Monetization | Free | Free |
| Size | 79 MB | 25 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Deep Fork Automation](https://appshunter.io/developer/1567843376) | [Legrand AV Inc](https://appshunter.io/developer/1574990702) |

## What reviewers say

### DFA SCADA

[App page](https://appshunter.io/ios/app/dfa-scada/id1567843374)

Monitor equipment remotely, receive alerts, and review historical data with this application. Users can manually input data, add comments, and track project progress. Contact the developer for further details.

**Highlights:** Remote equipment monitoring, Real-time alerts, Historical data graphs, Manual data entry, Progress tracking, Comment logging

**Features:** macOS Compatibility

**In-app purchases:** none


### RackLink Discovery

[App page](https://appshunter.io/ios/app/racklink-discovery/id1574990700)

Easily discover and connect to RackLink™ enabled products on your network. This app provides access to the web browser interface for full control and management of AV industry remote power management systems.

**Highlights:** Discover RackLink enabled products, Connect to PDUs on the same network, Access web browser interface, Full device control and management, Supports Select and Premium+ PDUs

**In-app purchases:** none


## Frequently asked questions

### Is DFA SCADA free?

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

### Is RackLink Discovery free?

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

### Which has better reviews, DFA SCADA or RackLink Discovery?

DFA SCADA and RackLink Discovery are both rated 5.0 out of 5 on the App Store, from 6 and 4 ratings respectively.

### Do DFA SCADA or RackLink Discovery have ads?

Neither DFA SCADA nor RackLink Discovery shows ads.

### Which is updated more often, DFA SCADA or RackLink Discovery?

DFA SCADA ships an update every 4 months, and RackLink Discovery every 36 months. Most recently, DFA SCADA was updated on June 1, 2026 and RackLink Discovery on June 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.*