Total Solar Eclipse 2026
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About this app
On August 12, 2026, a total solar eclipse crosses Iceland and Spain for the first time in a generation. For Reykjavík, it is the first totality since 1433. For Spain, it has not happened since 1905. The Moon's shadow sweeps from the Westfjords to the Balearic Islands in under two hours — and for observers in the path, totality lasts between 29 seconds and just over two minutes, depending on exactly where you stand. August 2, 2027: the century's longest total solar eclipse. Six breathtaking minutes of darkness sweeping southern Spain and North Africa also included via update.
Eclipse Viewer gives you everything you need to find the right location, know the precise moment, and not miss a second.
FREE FOR ALL OBSERVERS
Eclipse Viewer is free, with no advertisements. Core features available to everyone:
▸ Interactive path of totality map covering Iceland and Spain, with per-location totality duration, contact times, and sun elevation data derived from NASA astronomical calculations
▸ GPS-based eclipse assessment — open the app and instantly see your totality duration, or your partial eclipse obscuration percentage if you are outside the path
▸ Precise countdown to C1, C2 (totality begins), C3, and C4 for your location
▸ Animated phase visualiser showing the eclipse from your exact position
▸ Military-style direction compass showing exactly where the eclipsed sun will sit in your sky
▸ Safety guide with ISO 12312-2 / CE filter certification explained and a direct link to certified eclipse glasses
▸ Glasses safety verifier — hold your filter to the camera and the app checks whether it is blocking sufficient light
ECLIPSE VIEWER PRO — €4.99, ONE-TIME PURCHASE
A single payment, no subscription, no recurring charges.
HORIZON SCANNER — THE CRITICAL TOOL FOR THIS ECLIPSE
The 2026 eclipse happens very close to sunset, with the Sun between 2° and 24.5° above the horizon depending on location. In the Balearic Islands, a single building in the wrong direction blocks the event entirely. Horizon Scanner uses terrain elevation data and your GPS coordinates to calculate your actual western skyline and overlays the eclipse position at the correct altitude. It gives a clear verdict — CLEAR, BORDERLINE, or OBSTRUCTED.
ECLIPSE-DAY ALERTS
Cell networks across the eclipse path will be overwhelmed on August 12. All contact time calculations and GPS positioning work without any network connection. Audio alerts at 60, 30, 10, 5 and 2 minutes before totality, at the precise moment of C2 ("look up"), and at C3 ("glasses back on") — designed to fire even if the phone is locked.
ELEVATION-ADAPTIVE PHOTOGRAPHY ASSISTANT
Iceland sees totality at 24.5° elevation. Formentera sees it at 2°. These are fundamentally different photographic conditions. The Photography Assistant calculates exposure starting points for every phase at your exact location, plus a precise filter removal countdown calibrated to your totality duration.
PERSEID DUAL-EVENT PLANNER
The Perseid meteor shower peaks August 11–13 — the same nights as the eclipse, under a new moon. The dual-event planner helps you find a single location that serves the eclipse (clear western horizon) and Perseid viewing (dark open sky) in the same evening.
PERSONALISED ECLIPSE RECORD
After totality, the app generates a shareable keepsake card: your GPS coordinates, your exact totality duration to the second, and a simulation of the eclipse as seen from your position.
DATA ACCURACY
Every time, duration, and elevation figure in Eclipse Viewer is computed from NASA/GSFC Besselian element data for the August 12, 2026 eclipse — the same source used by professional astronomers. This is not a general-purpose astronomy app repurposed for the eclipse. It is built specifically for August 12, 2026, Iceland and Spain.
Available in English, Spanish, and Icelandic.
The 2026 eclipse will not return to Iceland until 2196. Do not miss it.
Eclipse Viewer gives you everything you need to find the right location, know the precise moment, and not miss a second.
FREE FOR ALL OBSERVERS
Eclipse Viewer is free, with no advertisements. Core features available to everyone:
▸ Interactive path of totality map covering Iceland and Spain, with per-location totality duration, contact times, and sun elevation data derived from NASA astronomical calculations
▸ GPS-based eclipse assessment — open the app and instantly see your totality duration, or your partial eclipse obscuration percentage if you are outside the path
▸ Precise countdown to C1, C2 (totality begins), C3, and C4 for your location
▸ Animated phase visualiser showing the eclipse from your exact position
▸ Military-style direction compass showing exactly where the eclipsed sun will sit in your sky
▸ Safety guide with ISO 12312-2 / CE filter certification explained and a direct link to certified eclipse glasses
▸ Glasses safety verifier — hold your filter to the camera and the app checks whether it is blocking sufficient light
ECLIPSE VIEWER PRO — €4.99, ONE-TIME PURCHASE
A single payment, no subscription, no recurring charges.
HORIZON SCANNER — THE CRITICAL TOOL FOR THIS ECLIPSE
The 2026 eclipse happens very close to sunset, with the Sun between 2° and 24.5° above the horizon depending on location. In the Balearic Islands, a single building in the wrong direction blocks the event entirely. Horizon Scanner uses terrain elevation data and your GPS coordinates to calculate your actual western skyline and overlays the eclipse position at the correct altitude. It gives a clear verdict — CLEAR, BORDERLINE, or OBSTRUCTED.
ECLIPSE-DAY ALERTS
Cell networks across the eclipse path will be overwhelmed on August 12. All contact time calculations and GPS positioning work without any network connection. Audio alerts at 60, 30, 10, 5 and 2 minutes before totality, at the precise moment of C2 ("look up"), and at C3 ("glasses back on") — designed to fire even if the phone is locked.
ELEVATION-ADAPTIVE PHOTOGRAPHY ASSISTANT
Iceland sees totality at 24.5° elevation. Formentera sees it at 2°. These are fundamentally different photographic conditions. The Photography Assistant calculates exposure starting points for every phase at your exact location, plus a precise filter removal countdown calibrated to your totality duration.
PERSEID DUAL-EVENT PLANNER
The Perseid meteor shower peaks August 11–13 — the same nights as the eclipse, under a new moon. The dual-event planner helps you find a single location that serves the eclipse (clear western horizon) and Perseid viewing (dark open sky) in the same evening.
PERSONALISED ECLIPSE RECORD
After totality, the app generates a shareable keepsake card: your GPS coordinates, your exact totality duration to the second, and a simulation of the eclipse as seen from your position.
DATA ACCURACY
Every time, duration, and elevation figure in Eclipse Viewer is computed from NASA/GSFC Besselian element data for the August 12, 2026 eclipse — the same source used by professional astronomers. This is not a general-purpose astronomy app repurposed for the eclipse. It is built specifically for August 12, 2026, Iceland and Spain.
Available in English, Spanish, and Icelandic.
The 2026 eclipse will not return to Iceland until 2196. Do not miss it.
Updated on
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No data shared with third parties
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What’s new
• Horizon Scanner: scan any date & time (e.g. scout tomorrow's sunset)
• Manual observer elevation + GPS altitude for accurate horizon checks
• Sharper terrain: 25 m EU-DEM data with automatic fallback, scans out to 60 km
• 20 more curated viewing locations (Balearics & central Spain)
• Times shown in your device's local timezone
• New app icon, bug fixes and layout improvements
• Manual observer elevation + GPS altitude for accurate horizon checks
• Sharper terrain: 25 m EU-DEM data with automatic fallback, scans out to 60 km
• 20 more curated viewing locations (Balearics & central Spain)
• Times shown in your device's local timezone
• New app icon, bug fixes and layout improvements
App support
phone
Phone number
+37253687240
About the developer
Syntherma OU
support@syntherma.com
Narva mnt 5
10117 Tallinn
Estonia
+372 5368 7240
