# MJ Kellner vs Elevra OS

The clearest difference is update cadence: Elevra OS at daily against MJ Kellner's every 4 months. MJ Kellner's advantage is iOS requirement (13.0 vs 15.0). 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.

MJ Kellner ships an update every 4 months, Elevra OS daily. Both last shipped on October 10, 2026.

## The numbers

| Metric | MJ Kellner | Elevra OS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/elevra-os/id6795716840/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Daily** |
| Monetization | — | Free |
| Size | 25 MB | 31 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Retalix Ltd.](https://appshunter.io/developer/563495183) | [Elevra Construction LLC](https://appshunter.io/developer/6795716842) |

## What reviewers say

### MJ Kellner

[App page](https://appshunter.io/ios/app/mj-kellner/id6448398214)

**Features:** macOS Compatibility

**In-app purchases:** none


### Elevra OS

[App page](https://appshunter.io/ios/app/elevra-os/id6795716840)

This app streamlines construction and remodeling projects by organizing job details, capturing field data, and managing customer information. It facilitates communication between office and jobsite teams, helping to coordinate schedules and prepare permits.

**Highlights:** Jobsite organization, Field data capture, Customer management, Permit preparation, Schedule coordination, Customer portal

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

**In-app purchases:** none


## Frequently asked questions

### Is MJ Kellner free?

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

### Is Elevra OS free?

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

### Do MJ Kellner or Elevra OS have ads?

Neither MJ Kellner nor Elevra OS shows ads.

### Which is updated more often, MJ Kellner or Elevra OS?

MJ Kellner ships an update every 4 months, and Elevra OS daily. Most recently, MJ Kellner was updated on October 10, 2026 and Elevra OS on October 10, 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.*