# Avalanche Lab vs Rentmaxx Z

The clearest difference is rating: Avalanche Lab at 4.3 against Rentmaxx Z's 3.6. Avalanche Lab also leads on review sentiment (91% vs 67%) and update cadence (every 2 months vs every 10 months). Rentmaxx Z's advantage is in-app purchases (none vs 2). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Avalanche Lab sells 2 in-app purchases, starting at $9.99 per year. Rentmaxx Z asks for nothing beyond the download.

Avalanche Lab holds the better App Store score, 4.3 against 3.6. Both are backed by a comparable volume of ratings — 15 and 7 respectively. Written reviews point the same way: 91% of Avalanche Lab's written reviews are positive against 67% of Rentmaxx Z's.

Avalanche Lab ships an update every 2 months, Rentmaxx Z every 10 months. Both last shipped on October 23, 2026.

## The numbers

| Metric | Avalanche Lab | Rentmaxx Z |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (15 ratings)](https://appshunter.io/ios/app/avalanche-lab/id477838698/reviews)** | [3.6 (7 ratings)](https://appshunter.io/ios/app/rentmaxx-z-value/id490057605/reviews) |
| Number of ratings | **15** | 7 |
| Positive reviews | **90.9% of reviews** | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 10 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 23 MB | 58 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RENAISSANCE RECREATION LLC](https://appshunter.io/developer/961533274) | [Rentmaxx GmbH & Co. KG](https://appshunter.io/developer/490057608) |

## What reviewers say

### Avalanche Lab

[App page](https://appshunter.io/ios/app/avalanche-lab/id477838698)

Record snow and avalanche data in the field using your iPhone. Measure slope angles, record crown profiles, and map slides with GPS. Share your findings instantly with colleagues and the wider community.

**Highlights:** Snow pit diagram creation, GPS slide mapping, Slope angle measurement, Crown profile recording, Offline field use, Data export (PDF, KML, CAAML), Import CAAML profiles

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Observation PRO Subscription | $9.99 | per year |
| Avalanche Lab PRO | $9.99 | per year |


### Rentmaxx Z

[App page](https://appshunter.io/ios/app/rentmaxx-z-value/id490057605)

Calculate the initial setting value for ski bindings using the weight method. Supports various units for body height and weight, and allows printing a customer document with all details.

**Highlights:** Z-Value calculation (DIN Setting), Weight method (ISO 11088), Input height in cm or feet, Input weight in kg, lbs, or stones, Printable customer document

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Avalanche Lab free?

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

### Is Rentmaxx Z free?

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

### Which has better reviews, Avalanche Lab or Rentmaxx Z?

Avalanche Lab is rated higher. Avalanche Lab averages 4.3 out of 5 from 15 ratings, while Rentmaxx Z averages 3.6 from 7 ratings.

### Do Avalanche Lab or Rentmaxx Z have ads?

Neither Avalanche Lab nor Rentmaxx Z shows ads.

### Which is updated more often, Avalanche Lab or Rentmaxx Z?

Avalanche Lab ships an update every 2 months, and Rentmaxx Z every 10 months. Most recently, Avalanche Lab was updated on October 23, 2026 and Rentmaxx Z on October 23, 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.*