# POLARIE U > Control a star tracker for advanced night sky photography and time-lapses. (iPhone/iPad app by Vixen Co., Ltd..) - Source: https://appshunter.io/ios/app/polarie-u/id1489683436 (this page in markdown: same URL + `.md`) - Developer: [Vixen Co., Ltd.](https://appshunter.io/developer/536188843) - Category: Utilities, Photo & Video - Price: Free - Rating: 4.00/5 from 1 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 11.0 · 5 MB - Languages: American English, French (France), German (Germany), Italian, Japanese, European Spanish - Released: 2020-06-09 - Data updated: 2026-06-05 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/polarie-u/id1489683436/reviews.md ## What is POLARIE U? The POLARIE U app is an app dedicated to the POLARIE U star tracker offered by Vixen. Shooting night skies is easy if only the POLARIE U. With the use of this app, however, you will enjoy creating a time-lapse movie of a higher level. Major features - Various speeds of rotations. (10x of the sidereal tracking rate at the maximum.) - The rotation speeds are available to set in the Custom Mode. - Control a camera shutter with an optionally available shutter release cable. - The motion of a POLARIE U can be linked with the shutter control (Shoot-move-shoot function). - Tracks the motion of stars accurately and the stars appear no trails in long exposures. - The bracketed imaging mode is available. It is effective in capturing fainter celestial objects such as diffuse and emission nebulae and it allows for creating HDR images using a stack of different exposures. A photo with a dynamic range wider than by a single shot will be a result. - The night vision light is available to use with either red light color or incandescent light color. - The screen colors are available for daytime use and nighttime use. ## Key features - Variable rotation speeds - Custom rotation speed settings - Camera shutter control - Shoot-move-shoot function - Accurate star tracking - Bracketed imaging for HDR - Night vision light ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/polarie-u/id1489683436/reviews.md ### 4/5 — not working with iphone 13 pro *2022-05-20* My iphone 13 pro can not establish connection with POLARIE U, while it is working with iPhone 6 and iPad Pro. Hope developers could fix this ## Frequently asked questions about POLARIE U ### What is POLARIE U used for? POLARIE U is an app designed to control the Vixen POLARIE U star tracker. It helps users create high-level time-lapse movies and capture detailed images of the night sky by managing the tracker's rotation and camera functions. ### Does POLARIE U have ads? No, POLARIE U does not contain advertisements. It is a completely ad-free application, allowing for an uninterrupted user experience. ### What devices is POLARIE U compatible with? POLARIE U is available for iPhone, iPad, and iPod. It is designed to work across various Apple mobile devices. ### What are the key features of POLARIE U for photography? Key features include various rotation speeds up to 10x sidereal, custom speed settings, camera shutter control with a shoot-move-shoot function, accurate star tracking for trail-free stars, and bracketed imaging for HDR creation. ### How does POLARIE U help with long exposure shots? POLARIE U accurately tracks the motion of stars, ensuring that stars appear as sharp points of light rather than trails in long exposure photographs. This is crucial for astrophotography. ### Can POLARIE U be used for HDR astrophotography? Yes, POLARIE U supports a bracketed imaging mode. This mode is effective for capturing fainter celestial objects and allows for the creation of HDR images by stacking photos with different exposures. ### What is the age rating for POLARIE U? POLARIE U has an age rating of 4+. This indicates it is suitable for users of all ages, with no content restrictions. ### How often is POLARIE U updated? The latest version of POLARIE U is 1.2.5, last updated on January 28, 2026. While this date is in the future, it suggests the app is actively maintained and updated by the developer. ## Version history (last 5 releases) ### 1.2.5 — 2026-01-28 Some bugs have been corrected. ### 1.2.4 — 2022-09-08 The POLARIE U app now supports European languages such as French, Italian, and Spanish. ### 1.2.3 — 2020-08-19 It is to update the POLARIE U app to display in English when setting a language other than Japanese or German. ### 1.2.2 — 2020-08-04 POLARIE U app is available in German language. ### 1.2.1 — 2020-06-11 The POLARIE U app is an app dedicated to the POLARIE U star tracker offered by Vixen. ## Apps similar to POLARIE U | App | Rating | Price | Category | | --- | --- | --- | --- | | [tararia - Multi Tab WebBrowser](https://appshunter.io/ios/app/tararia-multi-tab-webbrowser/id1599928209) | 4.6 (32) | Free | Utilities | | [スマホセキュリティ - キングソフト モバイルセキュリティ](https://appshunter.io/ios/app/id1397292570) | 5.0 (2) | Free | Utilities | | [EASY FI-CON TYPE-X](https://appshunter.io/ios/app/easy-fi-con-type-x/id1384861887) | — | Free | Utilities | | [MaBeeeControl](https://appshunter.io/ios/app/mabeeecontrol/id1588424958) | — | $2.99 | Utilities | | [Müller-Lyer illusion app](https://appshunter.io/ios/app/muller-lyer-illusion-app/id6450165949) | — | Free | Utilities | | [Areti Porescope](https://appshunter.io/ios/app/areti-porescope/id1519560417) | — | Free | Utilities | ## More apps by Vixen Co., Ltd. - [Comet Book](https://appshunter.io/ios/app/comet-book/id604782335) - [Moon Book](https://appshunter.io/ios/app/moon-book/id906552724) - [PF-L Assist](https://appshunter.io/ios/app/pf-l-assist/id940306488) - [Solar Book](https://appshunter.io/ios/app/solar-book/id1078873201) - [NightVision Light](https://appshunter.io/ios/app/nightvision-light/id1081761997) - [Mars Book](https://appshunter.io/ios/app/mars-book/id1342509724) All apps by Vixen Co., Ltd.: https://appshunter.io/developer/536188843 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-05.*