Overview

AstroPrint covers the route from a stored design to an active print: users can keep STL and G-code files in a cloud library, slice designs in a browser, and monitor jobs or pause, resume, and cancel them from a computer or smartphone. Analytics track filament use, printer operating hours, and success rates. That makes AstroPrint more useful for overseeing ongoing printer activity than a slicer alone, particularly when multiple machines are involved.

Printers connect through AstroBox Touch, AstroBox Gateway, a self-built AstroBox, or the OctoPrint plugin. The dashboard also includes an AI tool that generates printable 3D models from text prompts, and the mobile app can find Thingiverse designs and start them printing. Klipper support is limited to slicing, so users relying on Klipper should not treat AstroPrint as a complete printer-control solution for that setup.

Key features

Files, slicing, and model creation

Browser-based slicing and cloud storage keep preparation and file organization together without making desktop software the only path to a print. The prompt-based model generator adds a way to create printable designs within the dashboard. These cloud tools are useful for makers and classrooms sharing a workflow, but they do not remove the need to check printer compatibility.

Remote operation and analytics

Remote monitoring and controls let users intervene in an active job without being at the printer. Filament use, operating hours, and success-rate analytics provide a view of printer activity over time. The mobile app does not provide real-time video streaming; live viewing requires a browser, an important distinction for users who expect the phone app to show the print itself.

Pricing

AstroPrint uses a freemium model. Basic is free and includes 2 printers, 1 user, and 1GB file storage, making it a practical starting point for a casual user or a small personal setup. Its one-user limit makes it a poor fit for a shared classroom or team.

Premium costs $9.90/mo and includes the first 5 printers, 1 user, and 10Gb file storage. Additional printers cost $5/printer after, and extra storage costs $1/addt'l 10GB. It adds priority email support, but retains the one-user cap; growing a fleet raises the bill while a multi-user operation needs a different plan.

Business & Education has custom pricing and includes unlimited printers, users, and file storage, with priority single point-of-contact phone support. Its scale and support model suit organizations managing shared fleets, though the price requires a quote rather than a fixed monthly commitment.

Platforms

AstroPrint is available on Android, iOS, Linux, macOS, web, and Windows, with API and self-hosted options. AstroPrint Desktop is compatible with Mac OS X, Windows, and Linux. The platform mix gives users browser and mobile access alongside desktop choices, while actual printer connection options include AstroBox hardware or a self-built AstroBox and the OctoPrint plugin.

Who it's for

AstroPrint is best suited to makers who want cloud slicing and remote access around a small printer setup, and to education users who need a way to manage a larger shared fleet. The free tier supports casual use, while Business & Education is the better match when multiple people need access. It is less suitable for a team hoping to share Premium, or for Klipper users who need more than slicing support.

Pros and cons

Pros: Cloud storage, browser slicing, remote controls, and print analytics sit in one workflow, reducing the need to piece together separate management tools.
Pros: Several connection paths, including AstroBox options and an OctoPrint plugin, give users more than one way to bring printers into the service.
Cons: Basic is limited to 2 printers, 1 user, and 1GB; Premium still permits only 1 user and charges extra for printers beyond the first 5.
Cons: Mobile users must switch to a browser for real-time video, and Klipper support is limited to slicing.

Alternatives

3D Printing Software is the broader category for comparing options. Consider Polar Cloud if its free tier's 1-printer cap, 5 monthly print jobs, 7-day history, and 300 MB storage fit your needs; it accepts mesh files only and limits files to 30 MB. SimplyPrint is another freemium option, with a free plan for up to 2 printers and one user, plus 15 cloud slices and 12 AI Failure Detection hours per month; it also offers a free trial.

3DPrinterOS is a paid alternative with a free trial and a Premium plan at 19.00 USD per month for 2 printers and 1 user. For users focused on desktop slicing rather than cloud printer management, Lychee Slicer has a free Lite plan for Windows, macOS, and Linux, with limited multi-plate support and ads on export. PrusaSlicer is a free, open-source slicer, while UltiMaker Cura is free and open-source desktop slicing software.

ideaMaker is a free desktop 3D printing option for Windows, macOS, and Linux 64-bit. KISSlicer offers a free tier limited to selecting one extruder per print, even on multi-extruder printers.

Verdict

Choose AstroPrint if you want cloud file handling, browser slicing, remote controls, and printer analytics together, especially for a small maker setup or an education fleet on the appropriate plan. Its chief advantage is that breadth of printer-management workflow; its chief drawback is the narrow user allowance on Basic and Premium, compounded by per-printer charges as a fleet grows. Look elsewhere if you need shared Premium access, full Klipper control, or mobile live video.

	AstroPrint	Repetier-Host
Free plan	Yes	Yes
Paid from	$9.90/mo	€49.92/mo
Platforms	Android, api, iOS, Linux, macOS, self-hosted, Web, Windows	Linux, macOS, Windows
Free plan	Yes	Yes
Paid from	9.9 /mo
Auto supports	Yes
Printer control	Yes	Yes
Print monitoring	Yes	Yes
Cloud slicing	Yes
Multi-material tools		Yes
Model repair		No

AstroPrint vs Repetier-Host

AstroPrint

Repetier-Host