# XR vs Weights & Biases

The clearest difference is rating: XR at 5.0 against Weights & Biases's 4.1. Weights & Biases's advantage is ratings volume (14 vs 1) and chart position (#193 vs unranked). On price, ads, in-app purchases and monetization model there is nothing between them.

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

XR holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Weights & Biases has 14 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | XR | Weights & Biases |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/xr-controller/id6733221572/reviews)** | [4.1 (14 ratings)](https://appshunter.io/ios/app/weights-and-biases/id6755162576/reviews) |
| Number of ratings | 1 | **14** |
| Positive reviews | — | 76.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Weekly |
| Monetization | Free | Free |
| Best chart rank | — | **#193** |
| Size | 0 MB | 48 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ruihan Zhao](https://appshunter.io/developer/1694973934) | [Weights and Biases](https://appshunter.io/developer/1852334234) |

## What reviewers say

### XR

[App page](https://appshunter.io/ios/app/xr-controller/id6733221572)

This app streams device pose data and button inputs via WebSocket, using RealityKit for accurate pose estimation. It's designed for developers to integrate device motion into their applications.

**Highlights:** Device pose data streaming, Button input streaming, WebSocket protocol, RealityKit integration, Pose estimation

**In-app purchases:** none


### Weights & Biases

[App page](https://appshunter.io/ios/app/weights-and-biases/id6755162576)

**Currently charting:** #193 Top Free · Developer Tools (US App Store)

Monitor machine learning experiments in real time from your mobile device. Get notified about important events like run completion or metric changes. Quickly review results and track key performance indicators for your training runs.

**Highlights:** Monitor live and completed runs, View training curves, Track loss, accuracy, and custom metrics, Receive run completion notifications, Get alerted on key metric changes, Sanity-check results quickly

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

**In-app purchases:** none


## Frequently asked questions

### Is XR free?

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

### Is Weights & Biases free?

Weights & Biases is free to download, with no in-app purchases.

### Which has better reviews, XR or Weights & Biases?

XR is rated higher. XR averages 5.0 out of 5 from 1 ratings, while Weights & Biases averages 4.1 from 14 ratings.

### Do XR or Weights & Biases have ads?

Neither XR nor Weights & Biases shows ads.

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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.*