# RSR Alignment App vs OctoApp for OctoPrint/Klipper

The clearest difference is review sentiment: OctoApp for OctoPrint/Klipper at 93% against RSR Alignment App's 0%. OctoApp for OctoPrint/Klipper also leads on rating (4.9 vs 3.0) and update cadence (every 10 days vs every 3 months). RSR Alignment App's advantage is in-app purchases (none vs 15) and iOS requirement (11.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. OctoApp for OctoPrint/Klipper sells 8 in-app purchases, starting at $0.99 per month. RSR Alignment App asks for nothing beyond the download.

OctoApp for OctoPrint/Klipper holds the better App Store score, 4.9 against 3.0. That said, the two scores are not equally well evidenced: OctoApp for OctoPrint/Klipper has 1.3K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 0% of RSR Alignment App's written reviews are positive against 93% of OctoApp for OctoPrint/Klipper's.

RSR Alignment App ships an update every 3 months, OctoApp for OctoPrint/Klipper every 10 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | RSR Alignment App | OctoApp for OctoPrint/Klipper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (4 ratings)](https://appshunter.io/ios/app/rsr-alignment-app/id1503116170/reviews) | **[4.9 (1.3K ratings)](https://appshunter.io/ios/app/octoapp-for-octoprintklipper/id1658133862/reviews)** |
| Number of ratings | 4 | **1.3K** |
| Positive reviews | 0.0% of reviews | **92.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 10 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 57 MB | 249 MB |
| Requires iOS | **11.0** | 17.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [TMC CO.,LTD](https://appshunter.io/developer/920283832) | [Erhard Christian Wurthner](https://appshunter.io/developer/1658133864) |

## What reviewers say

### RSR Alignment App

[App page](https://appshunter.io/ios/app/rsr-alignment-app/id1503116170)

Measure camber and toe angles using your smartphone. The app displays angles for all four corners, allows zero point adjustment, and stores measurement data for later reference. It also lets you change the measurement interval.

**Highlights:** Measure camber angle, Measure toe angle, Display four-corner angles, Zero point adjustment, Store measurement data, Change measurement interval

**Features:** macOS Compatibility

**In-app purchases:** none


### OctoApp for OctoPrint/Klipper

[App page](https://appshunter.io/ios/app/octoapp-for-octoprintklipper/id1658133862)

Control and monitor your 3D printers remotely from your iOS device. Prepare prints, manage files, and tune settings in real-time with a streamlined interface. Supports OctoPrint, Klipper, and various printer brands.

**Highlights:** Remote printer control, Print preparation, File management, Webcam support, Notifications, Gcode viewer, Plugin support

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support for 1 month | $0.99 | per month |
| Support for 1 year | $6.99 | per year |
| All features (Transfer) | Free | one-time |
| Tip the developer | $1.99 | one-time |
| All features | $11.99 | one-time |
| All features | $12.99 | one-time |
| All features | $14.99 | one-time |
| All features | $17.99 | one-time |

**What reviewers like**

- 🚀 Excellent remote monitoring and control
- 👍 Seamless integration with OctoPrint and plugins
- 💡 Customizable and flexible UI
- 🔒 Secure remote access with OctoEverywhere
- ⭐ Exceptional customer support

**What reviewers complain about**

- 🐛 Occasional connectivity issues
- 🔌 Unreliable remote access at times

**Reported bugs**

- Incorrect notifications for print progress
- Compatibility issues with some printer models

**Requested features**

- Add support for Klipper-based printer firmwares
- Implement iOS widgets for quick status checks
- Improve camera rotation options


## Frequently asked questions

### Is RSR Alignment App free?

RSR Alignment App is free to download, with no in-app purchases.

### Is OctoApp for OctoPrint/Klipper free?

OctoApp for OctoPrint/Klipper is free to download, with in-app purchases available.

### Which has better reviews, RSR Alignment App or OctoApp for OctoPrint/Klipper?

OctoApp for OctoPrint/Klipper is rated higher. RSR Alignment App averages 3.0 out of 5 from 4 ratings, while OctoApp for OctoPrint/Klipper averages 4.9 from 1.3K ratings.

### Do RSR Alignment App or OctoApp for OctoPrint/Klipper have ads?

Neither RSR Alignment App nor OctoApp for OctoPrint/Klipper shows ads.

### Which is updated more often, RSR Alignment App or OctoApp for OctoPrint/Klipper?

RSR Alignment App ships an update every 3 months, and OctoApp for OctoPrint/Klipper every 10 days. Most recently, RSR Alignment App was updated on October 24, 2026 and OctoApp for OctoPrint/Klipper on October 25, 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.*