The UNISTELLAR App Changelog (App and Firmware Updates)

Bug fix

• Fixed software compatibility

Improvements:

Image Processing

• New tracking method to reduce circular streaks in your observations.

Onboarding

• Improved Help section on the Homepage

• Access to our new tutorial videos

• Discover 3 reasons to observe each month

Fix from Previous Version (V4.1.0)

Storage

• New App interface

• Data displayed by observations

• Data deletion from the App

• Object name added to file names

• Remove selected observation or all observations

Upload

• New App interface

• Improved upload speed

• Upload selected observation or all observations

• Keep or delete files after upload

• Option to stop upload (iOS only)

• Upload progress (iOS only)

Download

• New web interface

• Data displayed by observation

• Improved thumbnails with preview

• Dark frame added to each observation folder

• Option to select observations for download

• Option to delete observations

• Improved download speed for Odyssey, Odyssey Pro, eQuinox2 and eVscope2

Other Fixes

• Fixed a layout issue where the observation view could appear partially off-screen

• Fixed unresponsive telescope issue (white LED) after an update

• Corrected information in the manifest.json file

• Resolved compatibility with iOS 26

• Reduced latency during certain operations

• Fixed comet magnitudes

• Fixed comet distances

• Updated comet ephemerides
   

Improvements:

• Update of planetary ephemerides and other celestial objects.
• Adding new comets 3i Atlas, C/2025 A6, C/2025 K1, C/2025 R2.
• Corrected Sirius object type.

Improvements:

• To improve stability, this version restores the app to its previous state.
  Version 4.1.1 is equivalent to version 4.0.1. Firmware 3.6

Improvements:

• Storage:

1. New app interface

2. Data displayed per observation

3. Delete data directly from the app

4. Object name added to filenames

• Upload:

1. Improved upload speed

2. Option to keep or delete files after upload (default = keep)

3. Option to stop upload (compatible with most newer phones)

4. Upload progress display (compatible with most newer phones)

• Download:

1. New web interface

2. Data displayed per observation

3. Improved thumbnails with preview

4. Calibration image (dark frame) added to each observation folder

5. Option to select observations for download

6. Option to delete observations

• Getting started:

1. Improved help section
2. Access to our new tutorial videos
3. Discover 3 reasons to observe each month

New:

• Added comet C/2025 F2 (SWAN)

New:

• User account for improved scientific observations - planning, reminders, results, and report mentions.
• In-app article "3 Reasons to Observe This Month" for Northern Hemisphere objects.

Improvements: 

• Various bug fixes and stability improvements.

Improvements: 

• Satellites: Added a new mission in the Science tab for Satellite Observation, allowing users to share data on artificial objects in space with SETI Institute scientists.

Bug Fixes:

• Configuring the Wi-Fi password on Android

Bug Fixes:

• Fixed the upload speed issue, perfect for those contributing to Citizen Science missions.

Improvements:

• Vivid Vision Technology: Our new image processing is a game changer! Re-discover celestial objects with professional-grade image quality and true cosmic colors. (available for eQuinox 2, eVscope 2, Odyssey, and Odyssey Pro only)
• Added multiple comets to the database

Bug Fixes:

• Resolved an issue with the progress bar resetting during dark frame creation.
• Fixed timer display during Enhanced Vision on Android devices.
• Corrected time display for Direct Data Download.
• Various bug fixes and stability improvements.

Improvements: 

• Quick Access to Catalog: Users can now quickly access the catalog directly from the observation page. 
• Shop Accessories: You can now shop for accessories tailored to the specific telescope you own.
• Updated Icons and Illustrations: We've refreshed multiple icons and illustrations.

Bug fixes: 

• Various bug fixes and stability improvements.

Improvements: 

• Astronomy is Social: Connect directly to our UNISTELLAR Community group from the homepage.
• Cosmic Card Collection: Pin your favorite observation cards to illustrate your catalog.
• Catalog: Enhanced display for better visibility when Cosmic Card Collection is activated.
• Direct Data Download: Updated header information and default sorting by date.
• New Product Images: Updated homepage visuals for the "My Telescope" widget.
• Featured product: Discover ENVISION Smart Binoculars from the homepage.

Bug fixes: 

• Direct Data Download: Fixed download initialization issue.
• Android: Fixed menu display issue during scrolling.
• Various bug fixes and stability improvements.

Improvements: 

• Cosmic Card Collection: a new feature in the App that lets you customize the icons in your celestial catalog with your own observation images.
• The celestial catalog is now available in English, French, German, and Japanese.
• Direct Data Download: reduced download time, added progress bar, new update dialog, and added observation preview.
• Two nebulae have been added to the celestial catalog: NGC 1579 and IC 1795.

Bug fixes: 

• Direct data download: correction of file generation, correction of header information…
• Various bug fixes and stability improvements.

Improvements

• Introducing Laboratory tab. Try out the new features and easily return to the previous version. 
• Introducing direct access to RAW files from your telescope to your PC.
• Dynamic signal amplification: gain correction for Sun, Solar Eclipse, and Moon.

Bug fixes 

• Scientific mode: frame counter correction when cadence is activated.
• Correction of automatic save deactivation.
• Preview ratio correction on the observation page when taking a photo.
• Various bug fixes and stability improvements.

Improvements:

• Improved telescope connection with the addition of several screens: devices detected, connection failure, and FAQ.
• Improved Smart Star Finder for crescent-shaped objects (Moon and solar eclipses)
• Improved Stellar Autofocus on the Sun for ODYSSEY
• Compatibility with ODYSSEY PRO Red Edition
• Revised Japanese-language content
• Science: duration field is editable with deeplink

Bug fixes:

• ODYSSEY file names corrected
• iOS gallery stability during multiple selection
• Science tab: Burst mode and wrong links
• Homepage tab: wrong links for FAQ
• App version V3.1.0 can connect to telescopes up to versions V.1.4.0
• Various bug fixes and stability improvements.

Bug fixes

• Corrected Stellar Autofocus for ODYSSEY.
• Resolved Wi-Fi connection issue where no network was emitted

Improvements

• Improved user interface with a new design
• Improved user experience with new Homepage and Watch screens
• Simplified telescope connection
• Automatic orientation at the beginning of each Goto
• Enhanced Vision for the Moon: new live image processing
• Enhanced Vision for the Sun: new live image processing 
• Adding content for the Sun and Moon object cards.
• Option to change the color of the LED of the telescope (blue/red)
• Direct access to the Help Center
• Direct access to the Shop
• Compatibility with all UNISTELLAR telescopes

Bug fixes

• Various bug fixes and stability improvements

Improvements

• Enjoy the easiest and safest way to observe the Sun with Unistellar's Smart Solar Filter.
• Automated sun tracking with Goto Sun and Sun tracking Technology.
• Improved targeting and tracking of the Moon.

Bug fixes

• Various bug fixes and stability improvements.

Bug fixes

• Occurrence of concentric rings appearing under certain observation conditions attenuated.
• Bug involving image loss during Enhanced Vision fixed.
• Bug involving Enhanced Vision stopping after 8 seconds fixed.

Improvements

• Software integration for background removal using UNISTELLAR's Deep Dark Technology
• Global content quality reviewed in 4 available languages (EN FR DE JP)
• Comets added: C/2021 T4 Lemmon and C/2023 A3 (Tsuchinshan-ATLAS)
• Science program optimizations: automated reconnection to the App and improved tracking feedback
• Joystick can now vibrate when in use
• Performance upgrade for older devices (4 years+)
• UX/UI optimization: the display of different tabs and buttons

Bug fixes

• Spelling correction updates
• Operator/Observer connection random drops corrected
• Overall performance and stability updates

Improvements

• Software integration of our new telescope, the eQuinox
• Improvement of the control system for the operator/observer status by eliminating any unintentional switch during your star parties.
• Security upgrade for your telescope connection by adding a password. You now have the option to create a Wi-Fi password to secure your observations.

Bug fixes

• Content update
• Overall performance and stability improvements

Improvements

• In a few seconds, you can now observe Jupiter in colors and details thanks to Unistellar's enhanced vision. Also available for Saturn, Mars, and Venus.
• A new science mode, "Cosmic cataclysm", is now available
• A button to find predictions for each science mode is now available
• Improvement of the GPS efficiency

Bug fixes

• When visible sky area is deselected, Fawaris is not the first object displayed
• Overall performance and stability improvements
• Visible sky area settings from the catalog and main settings are synchronized
• When a second deep link, from the same category, is opened, information is updated