# Sentinel-2 Clear Days — Clear satellite timelines

> Clear satellite timelines (iPhone/iPad app by MARSHALL TYLER FRITH.)

- Source: https://appshunter.io/ios/app/sentinel-2-clear-days/id6819667305 (this page in markdown: same URL + `.md`)
- Developer: [MARSHALL TYLER FRITH](https://appshunter.io/developer/6805136752)
- Category: Photo & Video, Utilities
- Price: $1.99
- Age rating: 4+
- Requires: iOS 18.0 · 2 MB
- Languages: American English
- Released: 2026-10-07
- Data updated: 2026-10-09

## What is Sentinel?

Sentinel-2 Clear Days helps you find low-cloud Sentinel-2 days over a place you care about, build a scrubbable timeline, and export a short film.

Draw or drop an area on the map (or use presets such as Starbase, Colossus, and Cape Canaveral). Scan public Sentinel-2 L2A imagery for clear dates, review cloud/shadow/granule stats, build a timeline, play it at 1–12 frames per second, and export a film that matches that preview speed. Optional inlay box or circle and MGRS or lat/long burn-in on composed frames.

Features
• Area and inlay tools (box or circle) on Apple Maps
• Place search and km-sized drop presets
• Clear-day scan across the Sentinel-2 era (or shorter windows)
• Timeline scrub, play speed, and film export
• On-device stacks—no Marshall Frith account or backend

Network: the app queries the public Element84 Earth Search STAC API (sentinel-2-l2a) and downloads Cloud-Optimized GeoTIFF windows from the asset URLs returned; place search may use OpenStreetMap Nominatim; the basemap uses Apple MapKit.

## Chart rankings

- #186 in Top Paid · Photo & Video (US App Store)


## Version history (last 1 release)

### 1.0 — 2026-10-07

No release notes.

## More apps by MARSHALL TYLER FRITH

- [Kompressed](https://appshunter.io/ios/app/kompressed/id6805136750)
- [Deer Awareness](https://appshunter.io/ios/app/deer-awareness/id6818067168)

All apps by MARSHALL TYLER FRITH: https://appshunter.io/developer/6805136752

## Related topics

[copernicus sentinel](https://appshunter.io/ios/topics/copernicus-sentinel) · [ongeo intelligence](https://appshunter.io/ios/topics/ongeo-intelligence)

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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 2026-10-09.*