Comparison

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.

Head to head
About

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.

Highlights
  • Measure camber angle
  • Measure toe angle
  • Display four-corner angles
  • Zero point adjustment
  • Store measurement data
  • Change measurement interval
Features
Read full description

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.

About

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.

Highlights
  • Remote printer control
  • Print preparation
  • File management
  • Webcam support
  • Notifications
  • Gcode viewer
  • Plugin support
Features
Read full description

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

RSR Alignment App4 screens
OctoApp for OctoPrint/Klipper4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard7 real differences · 3 level
RSR Alignment App versus OctoApp for OctoPrint/Klipper: the parameters behind the verdict, then further details
ParameterRSR Alignment AppOctoApp for OctoPrint/Klipper
PriceFreeFree
Rating3.0 (4 ratings)4.9 (1.3K ratings) — better
Positive reviews0.0% of reviews92.9% of reviews — better
Number of ratings41.3K — better
Update frequencyEvery 3 monthsEvery 10 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS11.0 — better17.6
Further details — not scored
Size57 MB249 MB
Age rating4+4+
DeveloperTMC CO.,LTDErhard Christian Wurthner

Customer experience

RSR Alignment App

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews3 reviews
Positive0.0%
Neutral33.3%
Negative66.7%

OctoApp for OctoPrint/Klipper

All ratings1,301 ratings
Positive97.2%
Neutral2.0%
Negative0.8%
Written reviews99 reviews
Positive92.9%
Neutral3.0%
Negative4.0%

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

None

RSR Alignment App

No in-app purchases

8 purchases

OctoApp for OctoPrint/Klipper

Subscriptions2
  • Support for 1 month$0.991 Month
  • Support for 1 year7 Days trial$6.991 Year
One-time6
  • All features (Transfer)Free
  • Tip the developer$1.99
  • All features$11.99
Show 3 more
  • All features8 variants$12.99
  • All features$14.99
  • All features$17.99

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.

Other comparisons