# MRLDS 400 vs KalderMobile

The clearest difference is update cadence: KalderMobile at every 2 months against MRLDS 400's every 5 months. On price, ads, in-app purchases and device support there is nothing between them.

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

MRLDS 400 ships an update every 5 months, KalderMobile every 2 months. The most recent releases landed on September 28, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | MRLDS 400 | KalderMobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (3 ratings)](https://appshunter.io/ios/app/kaldermobile/id1610794045/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 8 MB | 32 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Copeland LP](https://appshunter.io/developer/464252882) | [Kalder](https://appshunter.io/developer/1610794047) |

## What reviewers say

### MRLDS 400

[App page](https://appshunter.io/ios/app/mrlds-400/id1502566407)

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

**In-app purchases:** none


### KalderMobile

[App page](https://appshunter.io/ios/app/kaldermobile/id1610794045)

This app provides remote management and visualization for commercial refrigeration and HVAC systems. It allows users to review site conditions, view active alarms, and access store layout maps. Users can also acknowledge alarms and subscribe to notifications for system alerts.

**Highlights:** Remote system management, Site condition review, Active alarm viewing, Store layout map, Alarm acknowledgment, Alarm notification subscription

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

**In-app purchases:** none


## Frequently asked questions

### Is MRLDS 400 free?

MRLDS 400 is free to download, with no in-app purchases.

### Is KalderMobile free?

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

### Do MRLDS 400 or KalderMobile have ads?

Neither MRLDS 400 nor KalderMobile shows ads.

### Which is updated more often, MRLDS 400 or KalderMobile?

MRLDS 400 ships an update every 5 months, and KalderMobile every 2 months. Most recently, MRLDS 400 was updated on September 28, 2026 and KalderMobile on November 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.*