# RackLink Discovery vs Kramer Control Agent

The clearest difference is update cadence: Kramer Control Agent at every 6 weeks against RackLink Discovery's every 36 months. RackLink Discovery's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

RackLink Discovery ships an update every 36 months, Kramer Control Agent every 6 weeks. The most recent releases landed on June 1, 2026 and May 17, 2026 respectively.

## The numbers

| Metric | RackLink Discovery | Kramer Control Agent |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/racklink-discovery/id1574990700/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 36 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 25 MB | 14 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Legrand AV Inc](https://appshunter.io/developer/1574990702) | [Kramer Electronics Ltd.](https://appshunter.io/developer/694685194) |

## What reviewers say

### 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


### Kramer Control Agent

[App page](https://appshunter.io/ios/app/kramer-control-agent/id6450832501)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RackLink Discovery free?

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

### Is Kramer Control Agent free?

Kramer Control Agent is free to download, with no in-app purchases.

### Do RackLink Discovery or Kramer Control Agent have ads?

Neither RackLink Discovery nor Kramer Control Agent shows ads.

### Which is updated more often, RackLink Discovery or Kramer Control Agent?

RackLink Discovery ships an update every 36 months, and Kramer Control Agent every 6 weeks. Most recently, RackLink Discovery was updated on June 1, 2026 and Kramer Control Agent on May 17, 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.*