RSR Alignment App vs OctoApp for OctoPrint/Klipper
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RSR Alignment App
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.
- Measure camber angle
- Measure toe angle
- Display four-corner angles
- Zero point adjustment
- Store measurement data
- Change measurement interval
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You can measure camber angle and toe in with your smart phone. 【Function】 (When adjusting the camber) ・Display the angles of four corners. ・Zero point adjustment ・Store the measurement data and refer to it. ・Change the measurement interval (When adjusting the toe) ・Store the data and refer to it. 【Operating system】 Measurement accuracy may differ depending on performance of the sensor equipped on the smart phone.
OctoApp for OctoPrint/Klipper
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.
- Remote printer control
- Print preparation
- File management
- Webcam support
- Notifications
- Gcode viewer
- Plugin support
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OctoApp is build with iOS in mind and is completely optimized for being used on a iPhone or iPad. The app supports OctoPrint and Klipper (Moonraker, Mainsail and Fluidd), Bambu Lab and Elegoo printers. The UI is structured into three workspaces: Connect, Prepare, Print. The Connect workspace helps you get your printer connected to OctoPrint and as soon as a printer is available OctoApp will move to the Prepare workspace. Here you can get ready for your next print! Heat your hotend, swap filament or level the bed. When you are ready and start your print, OctoApp shows the Print workspace where you can control and tune your print! This concepts allows for a simple and fast UI while not sacrificing on features! OctoApp already offers you: + Easy print preparation + Control your print + Full file access and management + Full terminal access + Flow rate, Feed rate and fan controls + Webcam support (also muticam support) + Dark mode + High performance + Notifications about your print and filament + Gcode Viewer + Support for multiple printers + Many power control plugins like PSU Control or IKEA Tradfri + Automatic lights + PrintTimeGenius support + Support for many of your favourite plugins, like ArcWelder or SpoolManager + Remote connection with supported plugin or manual setup, the app switches automatically + OctoEverywhere integration + Obico integration + Works with VPNs, HTTPS and Basic Auth + And much, much more! There is a new feature update roughly 4-8 weeks! Let me know what you are missing! Important notice for remote connections: The app does not provide required servers. You can either set something up yourself and provide the app with a URL reachable over the internet or use a plugin like OctoEverywhere, The Spaghetti Detective or ngrok. --- OctoApp is made for and compatible with but not officially associated with OctoPrint. OctoPrint is a registered trademark. Learn more at octoprint.org OctoApp is not associated with Obico, Bambu Lab, OctoEverywhere, Elegoo or other services integrated --- https://octoapp.eu/terms/
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | RSR Alignment App | OctoApp for OctoPrint/Klipper |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (4 ratings) | 4.9 (1.3K ratings) — better |
| Positive reviews | 0.0% of reviews | 92.9% of reviews — better |
| Number of ratings | 4 | 1.3K — better |
| Update frequency | Every 3 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 11.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 57 MB | 249 MB |
| Age rating | 4+ | 4+ |
| Developer | TMC CO.,LTD | Erhard Christian Wurthner |
Customer experience
RSR Alignment App
OctoApp for OctoPrint/Klipper
Bugs and requests
RSR Alignment App
Not enough reviews yet to summarise bugs or requests.
OctoApp for OctoPrint/Klipper
Reported bugs
2 issues- Incorrect notifications for print progress
- Compatibility issues with some printer models
Requested features
3 requests- Add support for Klipper-based printer firmwares
- Implement iOS widgets for quick status checks
- Improve camera rotation options
In-app purchases
RSR Alignment App
No in-app purchases
OctoApp for OctoPrint/Klipper
- Support for 1 month$0.991 Month
- Support for 1 year7 Days trial$6.991 Year
- All features (Transfer)Free
- Tip the developer$1.99
- All features$11.99
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- All features8 variants$12.99
- All features$14.99
- All features$17.99
Questions
Is RSR Alignment App free?
Is OctoApp for OctoPrint/Klipper free?
Which has better reviews, RSR Alignment App or OctoApp for OctoPrint/Klipper?
Do RSR Alignment App or OctoApp for OctoPrint/Klipper have ads?
Which is updated more often, RSR Alignment App or OctoApp for OctoPrint/Klipper?
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