# FITS QuickLook Mobile 11 — Not just a FITS viewer

> Lightweight and efficient FITS image viewer for mobile devices. (iPhone/iPad app by 海平 陈.)

- Source: https://appshunter.io/ios/app/fits-quicklook-mobile-11/id6757133145 (this page in markdown: same URL + `.md`)
- Developer: [海平 陈](https://appshunter.io/developer/1849550162)
- Category: Productivity, Utilities
- Price: $4.99
- Rating: 5.00/5 from 1 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 121 MB
- Languages: American English, Arabic, Dutch, French (France), German (Germany), Italian, Japanese, Korean, European Portuguese, Chinese (Simplified, China) and 1 more
- Released: 2026-01-08
- Data updated: 2026-11-07
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/fits-quicklook-mobile-11/id6757133145/reviews.md

## What is FITS QuickLook Mobile 11?

FITS QuickLook Mobile is a lightweight and efficient viewer for FITS images, designed for mobile devices.
Built upon the macOS version and optimized for touch, it delivers a smooth and intuitive experience on both iPhone and iPad.
On smaller screens, it focuses on fast single-image viewing; on iPad, it supports opening multiple FITS files in separate windows for convenient side-by-side comparison.
Supports standard FITS formats (.fit, .fits), compatible with both astronomical data and FITS files generated by tools such as MATLAB.
Enables precise exploration of image data using touch or Apple Pencil.
Fully offline. No accounts required. No data collection.

## Key features

- Lightweight FITS image viewer
- Optimized for touch on iPhone and iPad
- Side-by-side comparison on iPad
- Precise image data exploration
- Supports standard FITS formats
- Fully offline functionality

## Is FITS QuickLook Mobile 11 safe?

Not enough ratings yet to assess FITS QuickLook Mobile 11.

## Is FITS QuickLook Mobile 11 legit?

FITS QuickLook Mobile 11 appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for FITS QuickLook Mobile 11 is 65 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/fits-quicklook-mobile-11/id6757133145/reviews.md

### 5/5 — 很小众 但是很干净

*2026-01-13*

没有广告 很干净

### 5/5 — Although it is a minority, it is not bad

*2026-01-10*

Although it is a minority, it is not bad.

## Frequently asked questions about FITS QuickLook Mobile 11

### What is FITS QuickLook Mobile?

FITS QuickLook Mobile is a lightweight and efficient viewer for FITS images, designed for mobile devices. It offers intuitive touch controls and offline functionality.

### What devices does FITS QuickLook Mobile support?

FITS QuickLook Mobile is available for both iPhone and iPad, offering optimized experiences for each screen size.

### Can I compare FITS files side-by-side with FITS QuickLook Mobile?

Yes, on iPad, FITS QuickLook Mobile supports opening multiple FITS files in separate windows for convenient side-by-side comparison.

### Does FITS QuickLook Mobile require an internet connection?

No, FITS QuickLook Mobile is fully offline and does not require an internet connection to function.

### What FITS formats does FITS QuickLook Mobile support?

FITS QuickLook Mobile supports standard FITS formats (.fit, .fits), compatible with astronomical data and files generated by tools like MATLAB.

### How much does FITS QuickLook Mobile cost?

FITS QuickLook Mobile is a paid application, priced at $1.99.

### Does FITS QuickLook Mobile collect user data?

No, FITS QuickLook Mobile does not require accounts and explicitly states that it does not collect any user data.

### How often is FITS QuickLook Mobile updated?

The latest version, 6.2.15, was released on May 6, 2026, indicating recent development activity and ongoing support.

## Version history (last 5 releases)

### 11.5.1 — 2026-11-06

- Redesigned the main interface, sidebar, and tabs on iPad for a refreshed experience.
- Redesigned the help panel.
- Refined the workflows for matrix plotting, curve fitting, and peak analysis.
- Improved file handling and navigation when opening a file of an unexpected type.
- Fixed an issue that could cause the app to crash when tapping the accessibility button.

### 11.4.0 — 2026-11-05

FITS QuickLook Mobile 11 for iPhone and iPad introduces professional tools spanning file editing and observational analysis.

- New FITS File Editor: Edit headers, manage HDUs, and work with table, array, and image data. Open it independently from Quick Actions.
- New Observational Analysis Tools: Perform aperture photometry, estimate sky backgrounds, analyze stellar radial profiles and spectral lines, and export measurements.
- New WCS and Region Measurement Tools: Display coordinate grids, convert between pixel and world coordinates, switch between primary and alternate WCS solutions, and measure a variety of pixel and celestial regions.
- New Region Noise Analysis: Access robust statistics, adjustable sigma clipping, histograms, and CSV export.
- New Online Data Queries: Query catalogs through VizieR and retrieve survey FITS images through SkyView for further viewing and analysis in your local workspace.
- New Automation and Application Integration: Organize repetitive processing tasks with JSON processing recipes, embedded Tcl, Shortcuts, and XPA sessions.
- Updated professional tool icons, improved multilingual support, and fixed a display issue with region noise histograms.

### 10.0.0 — 2026-11-01

- A refreshed iPhone home screen brings a cleaner layout and easier access to everyday tools.
- Rotate the tool ring to quickly find image viewing and analysis tools.
- Fixed a crash that could occur when opening the Range panel or switching between its views on iPhone.
- Inspect pixel statistics with Image Quality and export a CSV report.
- An improved accessibility panel makes it easier to review system adaptations, manage haptic feedback, and hear a spoken workspace summary.

### 9.0.2 — 2026-09-29

Fixed bugs and improved performance.

### 9.0.1 — 2026-09-17

This version improves overall smoothness and fixes known issues.

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## More apps by 海平 陈

- [MarkdownLite Editor](https://appshunter.io/ios/app/markdownlite-editor/id6757002091)
- [FITS QuickGuide](https://appshunter.io/ios/app/fits-quickguide/id6767085896)
- [setQuill](https://appshunter.io/ios/app/setquill/id6830096021)

All apps by 海平 陈: https://appshunter.io/developer/1849550162

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*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 2026-11-07.*