# SunSpan — Sunrise, sunset & twilight > Visualizes a full year of daylight, sunrise, sunset, and twilight on one chart. (iPhone/iPad app by Mykhailo Chelnokov.) - Source: https://appshunter.io/ios/app/sunspan/id6761731642 (this page in markdown: same URL + `.md`) - Developer: [Mykhailo Chelnokov](https://appshunter.io/developer/1891136089) - Category: Weather, Utilities - Price: Free - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 16.0 · 6 MB - Languages: Arabic, Czech, Danish, English, Finnish, French, German, Hebrew, Icelandic, Italian and 10 more - Released: 2026-04-08 - Data updated: 2026-07-06 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/sunspan/id6761731642/reviews.md ## What is SunSpan? SunSpan — A Year of Daylight on One Screen SunSpan renders an entire year of sunrise, sunset, and twilight as a single chart. Each day is a vertical band shaded from astronomical night through nautical and civil twilight into full daylight, so the seasonal curve, the solstices, the equinoxes, and effects like white nights and polar day are visible at a glance. Tap or drag across the chart to select any day and see its sunrise, sunset, daylight length, and twilight phase times in a detail bubble. Features - Full-year daylight chart for any location, any year from 1900 to 2100 - Eight-stop twilight gradient: night, astronomical, nautical, civil, day - Tap or drag any day to inspect sunrise, sunset, daylight length, and twilight phase times - DST transitions marked on the chart - Location picker via satellite map, or automatic from device GPS - Time zone resolved automatically from the selected coordinates - Localized in English, Spanish, German, and Ukrainian Privacy No accounts, no analytics, no ads. Location is used only on-device to compute solar geometry and never leaves the device. ## Key features - Full-year daylight chart - Eight-stop twilight gradient - Inspect daily solar times - DST transitions marked - Location picker via map/GPS - Automatic time zone resolution ## Frequently asked questions about SunSpan ### What is SunSpan? SunSpan renders an entire year of sunrise, sunset, and twilight as a single chart. Each day is a vertical band shaded from astronomical night through nautical and civil twilight into full daylight, making seasonal curves and solstices visible at a glance. ### How does SunSpan display daylight information? SunSpan uses an eight-stop twilight gradient, ranging from night to day, to visually represent different phases. The chart allows users to tap or drag across any day to see its specific sunrise, sunset, daylight length, and twilight phase times. ### Can I see historical and future daylight data with SunSpan? Yes, SunSpan provides a full-year daylight chart for any location and any year from 1900 to 2100, allowing for both historical and future data inspection. ### Does SunSpan use my location? SunSpan uses your location only on-device to compute solar geometry. This location data never leaves your device, ensuring your privacy. You can also pick locations manually via a satellite map. ### What devices does SunSpan support? SunSpan is available for iPhone and iPad devices. ### Is SunSpan free to use? Yes, SunSpan is available for free and does not contain any advertisements or in-app purchases. ### How often is SunSpan updated? The latest version, 1.0.5, was released on May 5, 2026, indicating regular updates to improve functionality and reliability. ### What languages does SunSpan support? SunSpan is localized in English, Spanish, German, and Ukrainian, making it accessible to a wider range of users. ## Version history (last 5 releases) ### 1.0.5 — 2026-05-05 - Moon phase next to each day's sunrise/sunset details, drawn for the date you select. - Phase orientation flips for southern-hemisphere locations so it matches what you actually see in the sky. ### 1.0.4 — 2026-04-13 ⏺ "You are here" dot — a white dot marks your current moment on the chart, with a live info bubble showing time until sunset or since sunrise. At polar latitudes it shows polar day/night status with countdown to the next sunrise or sunset. ⏺ Redesigned year stats page with a cleaner two-column table layout and selectable text. ⏺ Added Arabic and Hebrew translations (20 languages total). ### 1.0.3 — 2026-04-12 • New stats page summarizing the whole year: totals, longest and shortest day, earliest and latest sunrise and sunset, average day length, and equinoxes — with polar-aware metrics for midnight-sun locations • Inline year stepper that keeps your selected day as you move between years • Redesigned day info bubble for better readability and stable layout • Selected day now persists while you pan across the chart • Fixed a rendering glitch where a polar-night boundary day could show as full daylight ### 1.0.2 — 2026-04-10 - Daylight Saving Time toggle — view the chart in standard time - Coordinates displayed on the chart - All settings now persist between launches - "My Location" button on the map - Hybrid map with place names - Landscape layout improvements for Settings - Fixed polar night detection on boundary days - Now supports iOS and iPadOS 16+ ### 1.0.1 — 2026-04-08 - Fixed landscape chart rendering on Pro Max devices - Fixed first-launch location permission handling - Improved daylight visualization for polar regions - Added 14 new languages --- *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 2026-07-06.*