Cosmovisor

6 Downloads 13 Views v1.0 4.22 MB 4.1+

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(4.22 MB)

Editor's Overview

Cosmovisor is a science & education application developed by millaguie, packaged as a single Android APK of version 1.0 weighing in at 4.22 MB. The package targets Android 4.1+ and above. Below you'll find the publisher's own description, a quick spec sheet, and a short buyer-beware checklist so you know exactly what you're installing before tapping download.

Install Checklist

Only download through the button on this page — never from third-party mirrors or shortened links, which are the most common way malware spreads.
File size is a light 4.22 MB, so it installs quickly even on modest connections.
This build is signed by "millaguie" — always verify the developer name matches what's listed on the app's official store page before installing an update.
After install, Android may prompt you to allow "Install from unknown sources" — approve only this one install, then revoke the permission in Settings > Apps > Special access.
We link directly to the APK file or the publisher's repository; we do not modify the binary. Always run a virus scan after any sideloaded install.

About this app

Point your phone at the sky and Cosmovisor overlays the satellites
passing over you right now on the camera image, in augmented reality.
Plus pass predictions, ham-radio tools and a star map.

All the orbital math runs on your device. Works fully offline once the
public orbital data has been downloaded.

FEATURES

* AR view: camera preview with satellites drawn at their real sky
position, refreshed every second. Tap one for its data.
* "Only visible" filter: hides everything you could not actually see
right now, using the satellite's brightness and how dark your sky
is at this hour.
* Satellite list: search by name or NORAD id; filter by category
(ISS, Starlink, GPS, weather, science...), object type
(payload / rocket body / debris), country/operator, orbit regime
(LEO/MEO/GEO/HEO), radio band and "above the horizon now".
* Passes: 24-hour pass predictions grouped by day, with opt-in
alerts before a pass.
* Sky and astronomy: Sun, Moon and planets, Moon calendar, eclipses,
a pannable planetarium, Starlink train finder, and bright comets
and asteroids from JPL's Small-Body Database.
* Ham radio: live full-duplex Doppler (including inverted
transponders), rig and rotor control over TCP (rigctld/rotctld),
ISS SSTV and APRS decoded from the phone mic, RTL-SDR reception
over rtl_tcp (NBFM, SSTV, NOAA APT weather imagery), and a QSO log
with ADIF export. All opt-in.
* Night mode: a red theme to preserve your dark adaptation.

PRIVACY

Privacy comes first. No accounts, no ads, no tracking, no telemetry.

* Your GPS location is processed only on the device. It is never sent
or stored off-device.
* The only network requests fetch public orbital data (CelesTrak, and
optionally the SatNOGS transponder catalog and JPL small-body data).
They are anonymous and carry no personal data or location.
* Satellite brightness data ships inside the app. Refreshing it from
our own server is optional and off by default, because it is the
only download that has no upstream source to ask first.
* Works offline with the last downloaded data.

Cosmovisor is fully de-Googled: no Google Play Services, no Firebase,
no trackers. Location uses the AOSP LocationManager and the fonts are
bundled, so it runs on degoogled devices.

Free software, licensed under the GNU General Public License v3.0 or
later (GPL-3.0-or-later).

Details

Version	v1.0
Size	4.22 MB
Developer	millaguie
Category	Science & Education
Package	net.millaguie.cosmovisor
Android	4.1+
Last Updated	Oct 29, 2026
Downloads	6

Frequently Asked Questions

Is Cosmovisor free to download?
Yes. The APK file linked from this page is free. The developer may offer in-app purchases once installed, but obtaining the installer itself costs nothing.

What Android version does Cosmovisor require?
Android 4.1+ or newer. Installing on older devices may cause crashes or refuse to install.

Is Cosmovisor safe to install?
We link to the exact APK published by millaguie. We do not modify the file. Still, as with any sideloaded app, scan it with a reputable antivirus before opening it, and only grant permissions the app genuinely needs.

How do I update Cosmovisor?
Install the newer version on top of the old one — Android will keep your data. If the signature differs, uninstall first (you may lose local progress).

Why is the app not installing?
Common causes: not enough storage, an older Android version than 4.1+, or a conflicting build already installed. Free up space, check your OS version, and uninstall any previous copy before retrying.

How to Download & Install Cosmovisor

Tap the Download APK button above and save the file to your device.
Open your device Settings → Security (or Apps → Special access → Install unknown apps) and allow your file manager or browser to install unknown apps for this one file only.
Open the downloaded net.millaguie.cosmovisor.apk file from your Downloads folder.
Tap Install and wait for Android to finish.
Open «Cosmovisor» by millaguie and grant only the permissions it actually needs.
Revoke the "unknown sources" permission once you are done installing.

Note: this page hosts or links to the installer only. The application name, icon and description are provided for identification. All trademarks belong to their respective owners.