Fixed bugs and improved performance.

This version improves overall smoothness and fixes known issues.

• Introducing Matrix Plot Studio: visualize matrices with line plots, scatter plots, heatmaps, 3D surfaces, and contours. • Edit legends, axes, and matrix values, and analyze regions of interest. • Sky Flat calibration combines Keystone correction with iterative, multi-line Smile correction. Apply a shared correction matrix to multiple target spectra. • Quick Functions brings independent tools together. On iPad, a dedicated tool sidebar sits beside the live canvas. • Improved file selection, previews, accessibility, and navigation.

• Fixed an issue where files could not be selected in Distortion Correction. • Fixed several localization issues. • Added file transfer between iOS and Mac.

• Improved matrix summation with a clearer multi-row and multi-column workflow. • Fixed unclear result displays when selecting multiple columns. • Improved summation indicators to clearly show whether row or column summation is being performed. • Enhanced the matrix analysis workflow for a smoother data processing experience. • Additional stability and interface improvements.

• Fixed an issue where the title bar could disappear. • Fixed an issue where the minimum value was incorrectly set to 0 when maximum value suppression was enabled. • Redesigned the Stretch interface with an improved workflow. • Added more Stretch controls for more flexible image visualization. • Additional stability and interface improvements.

• Redesigned FITS analysis workflows while preserving existing functionality, with improved distortion correction and noise analysis experiences. • Reimagined selection, stretch, distortion correction, and noise tools with a more intuitive and efficient workflow. • Introduced a new multi-function interface system for smoother switching between analysis tools. • Redesigned the iPhone home experience for improved mobile browsing and analysis. • Added Apple accessibility support for a more inclusive FITS data experience. • VoiceOver now describes image dimensions, zoom level, data range, and selection information. • Added spoken image summaries using the system language. • Improved accessibility support with enhanced contrast, non-color indicators, and transparency adjustments. • Added Pixel Explorer with coordinate navigation, ADU values, VoiceOver actions, and optional haptic feedback. • Improved iPad interaction and large-screen workflows. • Improved update checking to notify users only when a new version is available. • Additional stability and performance improvements.

• Enhanced matrix operations with support for rotating matrix elements. • Fixed issues where some interface text could be displayed incompletely. • Improved Colorbar visualization with labels for clearer data interpretation. • Additional stability and interface improvements.

• Improved the Matrix Analysis workflow with a redesigned layout and enhanced row/column analysis experience. • Improved Selection and ROI interactions with more intuitive matrix controls and flexible input options. • Enhanced data editing with smarter controls based on the current selection state. • Fixed row/column plotting synchronization issues and improved integration with Profile and Advanced analysis. • Improved curve fitting performance with support for additional analysis inputs. • Expanded Matrix Analysis features on iPad with an optimized large-screen layout. • Refined card layouts, toolbar design, tab appearance, and overall interface experience. • Improved localization and interface text. • Additional stability and performance improvements.

• Added device-to-device transfer. • Transfer files and working states between iPhone and iPhone, iPhone and iPad, or iPad and iPad, allowing you to continue your analysis seamlessly across devices. • Redesigned the top toolbar on iPad for a better layout and improved workflow on the larger display. • Fixed incomplete localization and improved translated content. • Additional stability and experience improvements.

This update introduces a new Nearby Transfer experience, along with further interface and localization improvements. • Added Nearby Transfer. Transfer the currently open FITS file between two nearby iPhone devices with the app installed. • Improved the transfer experience. Supports nearby device discovery, invitations and acceptance, transfer progress, cancellation, file integrity verification, and state recovery after interruptions. • Expanded transfer content. In addition to FITS files, transfers now support more working information, with viewing state synchronization being introduced for a more seamless continuation on another device. • Added a new Nearby Transfer card. Quickly access Nearby Transfer from the main workspace. • Redesigned the top floating toolbar. Improved layout and interaction for faster access to commonly used features. • Improved localization. Refined translations and interface text for newly added features. • Additional stability and interface improvements. To use Nearby Transfer, turn on Wi-Fi and Bluetooth and allow the app to access Local Network and Bluetooth. You do not need to be connected to a specific Wi-Fi network. iPad transfer support is coming soon.

• Fixed an issue where header information could occasionally fail to appear or respond with a delay. • Improved overall responsiveness, performance, and power efficiency. • Enhanced Metal, GPU, and multi-core CPU processing for faster FITS and BINTABLE operations. • Accelerated histograms, percentile statistics, FFT, and vector normalization with Accelerate/vDSP. • Improved parallel processing for BINTABLE parsing and FITS data conversion and decoding. • Enhanced Metal-based GPU rendering for smoother stretch and colormap adjustments. • Reduced work on the main thread for a more responsive interface. • Automatically reduces nonessential processing in the background, at low battery levels, or under higher thermal conditions. • Added CPU fallback when Metal is unavailable. • Additional stability and performance improvements.

For FITS files containing multiple HDUs: • Supports Primary HDU • Supports Image Extensions • Supports BINTABLE Extensions • Shows extension names and types • Shows the dimensions of each HDU • Tap to switch between HDUs • Provides clear information for HDUs that cannot be displayed

• Fixed an issue where BINTABLE histograms could display incorrectly. • Improved tab stability, with new long-press actions, options to close other or unstarred tabs, pinned starred tabs, and clearer file type and loading status. • Improved Live Activities for more accurate task status and smoother transitions between files. • Mean and Maximum indicator lines in Histogram can now be shown or hidden individually. • Improved localization and interface text across supported languages. • Additional stability and UI improvements.

Profile and Advanced have been completely redesigned and unified into the new Row & Column Analysis workspace. - Analyze individual rows and columns. - Display multiple row or column profiles together. - Analyze summed profiles across selected row or column ranges. - Highlight selected rows, columns, and summed ranges directly on the image. - Zoom, pan, and double-tap to reset the image preview. - Full-screen plots with zooming, cursor inspection, statistics, and CSV export. - Double-tap to enter precise row or column indices. - View and search the complete FITS Header. - Optimized interfaces for iPhone, iPad, and Light/Dark Mode. - Fixed issues with file tabs, Reset, Live Activities, and more. - Expanded localization and updated Help content.

We recommend this update for all users. Version 7.0.0 is our biggest mobile upgrade yet. - New Science Assistant with Apple Intelligence and supported cloud AI providers. - New Matrix workspace with full-grid browsing, editing, ROI selection, plotting, Heatmap, Surface, and Contour views. - Redesigned BINTABLE workspace with improved column browsing, plotting, and vector-to-Matrix workflows. - New FFT, peak analysis, curve fitting, and scientific tools. - Added MAT-to-FITS and XLSX-to-FITS converters. - Redesigned interfaces for iPhone and iPad. - Added Live Activities, Dynamic Island, and Lock Screen progress updates. - Expanded localization across 11 languages. - Improved performance, stability, gestures, exports, and large FITS handling. FITS files remain on your device unless you explicitly authorize compact scientific context to be sent to a selected cloud AI provider.

This update brings several fixes and improvements. • Added a reset button to the Range tool • Fixed an extra spacing issue below the app name in Settings • Fixed an issue where fast scrolling during file import could make the import button unresponsive • Improved tab animations for smoother performance

We recommend all users update to this version. This update improves file import logic across different file types and enhances overall stability. • Fixed an issue where tapping tabs would switch to 2D mode when opening 2D files in BINTABLE mode • Fixed inconsistent file reading behavior • Fixed an issue where invalid file tabs were incorrectly read as 2D • Added a quick 2D FITS access shortcut to the iPhone top navigation bar • Top navigation buttons on iPhone now highlight (blue/green) based on available actions for the current file type • Navigation buttons in iPad workspace mode now highlight (green) based on available actions • Improved overall stability

This update focuses on refining the interface and interaction design. 1. Updated the light launch screen on iPhone 2. Added a dark launch screen on iPad 3. Unified external button design across iPhone and iPad for improved consistency and feel 4. Refined the top navigation bar on both iPhone and iPad 5. Fixed an issue in Workspace mode on iPad where the Histogram and Display panels at the bottom would not collapse 6. Fixed a bug where 2D FITS files could be opened in the BINTABLE panel 7. Added forward/back transition animations for tabs 8.The previous-generation app logo is back

This is a minor update. 1.Added hover effects to card entry points 2.Fixed an issue where the “Check for Updates” button text could be truncated on smaller screens

This update introduces a redesigned home experience for iPhone and iPad, featuring a clearer layout, a new starfield background, and refreshed app and Dynamic Island icons for a more engaging visual experience. BINTABLE support has been improved. FITS files containing BINTABLE data can now be opened directly, without needing to open a 2D image first. Dark Mode has been enhanced with better card contrast, improved readability, and fixes for transparency issues.

We recommend all users update.We sincerely apologize. This update fixes an issue where file import was unavailable in iPad Workspace mode, and resolves a problem where tab titles were too long.

This is a quick hotfix release. 1.Fixed an issue on iPad where some button labels in the Advanced panel were too long in Italian, Dutch, German, Spanish, and Arabic, causing unintended line wrapping. 2.Updated related Help documentation.

This version introduces spectral distortion correction, designed for LAMOST and FASOT fiber spectroscopy. Special thanks to Prof. Sun for the support. 1. Keystone and Smile distortion correction now expanded from Mac to iPhone and iPad 2. Updated app icon 3. Updated Dynamic Island icon 4. Updated onboarding visuals 5. Help documentation now includes Keystone and Smile correction 6. Bug fixes and overall performance improvements

This version is the final update of the 5.x series. This update focuses on improving the UI experience of the "Help" and "Selection" features. Thank you for your support. 1.Unified the inconsistent "Selection" interface between iPad and iPhone since version 1.3.0 2.The "Selection" window now supports minimization 3.Fixed an issue since version 2.1.2 where the "Help" view on iPad was too small and not scrolling smoothly 4.The "Help" window now supports minimization 5.Added Korean localization 6.Added Portuguese localization 7.Added Arabic localization 8.App updates now support redirecting to the App Store