Comparison

The Photographer's Ephemeris vs Solar Eclipse Timer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

The Photographer's Ephemeris

Plan outdoor photography shoots with this map-centric calculator for sun, moon, and Milky Way positions. Visualize light direction, plan celestial alignments, and scout locations with augmented reality. Features offline maps and detailed celestial event data.

Highlights
  • Sun, Moon, and Milky Way rise/set times and positions
  • 3D Milky Way and star visualization
  • Augmented reality for on-location scouting
  • Offline map support
  • Shadow length visualization
  • Celestial event tracking
Read full description

"Head and shoulders above the crowd is The Photographer’s Ephemeris. Odd name, great app." - National Geographic "One of the most useful apps for any nature photographer" - Outdoor Photographer Magazine "It worked perfectly. The program was dead on…" - National Geographic "One of the most powerful photography applications that I've seen, one that you'll be using for years and years." - AdoramaTV The Photographer's Ephemeris (TPE) helps plan outdoor photography shoots in natural light, particularly landscape and urban scenes. It's a map-centric Sun, Moon and Milky Way calculator: see how the light will fall on the land, day or night, for any location on earth. Whether you need at-a-glance information on today's sun, moon and Milky Way data for your current location, or need to plan a precise alignment of the full moon for a future shoot, TPE has the tools you need. The combination of augmented reality, line-of-sight analysis and visual search supports the most sophisticated photo planning needs. Night mode features a 3D representation of the Milky Way, pole stars and major constellations directly over the map, so you can easily visualize exactly how to align your shot. Research and save your own list of favorite photographic locations, using 7 different map types (including 2 offline maps) and save them in your locations list. Favorite locations are always displayed right on the map. Advanced features including visual sun and moon search, automatic time zone and elevation detection, correction for atmospheric refraction and height above the horizon, ensuring that you have the best possible information for planning your shoot. You can even determine when the sun or moon will rise from behind nearby hills and mountains. Key features: - Time/direction of sun, moon, and galactic center rise/set - View azimuth and altitude of sun/moon and the galactic center for any time of day/night - Milky Way, stars and asterisms visualization via 3D map overlay - Moon phase and % illumination - Civil, nautical and astronomical twilight - 2 topographic maps - 2 offline map types - Movable map pins: drag and drop the pin exactly where you need it - Map autorotation using the compass (on compatible devices) - Shadow lengths displayed to scale on map - Save any location you want: no fixed lists - Celestial events including moon phases, apogee, perigee, solstice, equinox - Solar eclipse details for August 12, 2026 and beyond: maps, simulator, times - Network connection not required for rise/set time, azimuths and sun/moon position Advanced features: - Augmented reality view for on location scouting - Saved location synchronization between devices and the free TPE web app - Automatic time zone detection - Elevation above sea level - Distance, bearing and elevation angle between any two points - Location import/export from KML - Magnetic north option - Configurable timeline display - Sun/moon transit times - 'Golden hour' time/duration - Light pollution overlay - Event countdown and notifications Geek features: - Line of sight analysis - Find when the sun/moon will appear from behind a hill or ridge - Advanced visual sun and moon search - Azimuth or altitude search priority - New crescent moon visibility - Distance to the visible horizon Available map types include: - Standard, Satellite/Hybrid, Terrain - OpenCycleMap Topographic - OpenStreetMap Sunrise/sunset color forecasts are available (covering lower 48, southern Canada and Europe) with an optional subscription to the Skyfire service, available via in-app purchase. Note: - Maps and elevation-based calculations require a data connection, except for offline map tiles previously downloaded and stored on your device - Topographic map data is available only between 60°N and 47°S - Availability of map types is subject to change, due to 3rd party map service availability, terms or conditions

About

Solar Eclipse Timer

This app provides precise countdowns and reminders for solar eclipse phenomena, aiding both casual observers and photographers. It works offline and offers features like automatic partial-phase image timing and a dedicated photographer mode.

Highlights
  • Offline eclipse timing
  • Precise contact time calculation
  • Photographer mode
  • Automatic partial-phase image timing
  • Geolocation and manual coordinate entry
  • Audio and notification tests
Features
Read full description

The Solar Eclipse Timer app is marking its 6th eclipse since 2017, which speaks volumes about its reliability and the trust it has built within the eclipse-chasing community. Helping tens of thousands of people enjoy the eclipse more by being reminded to observe all the fascinating eclipse phenomena. Photographers are aided by down-to-the-second precision and countdowns. Since the 2026 path covers some remote areas as well as high-traffic spots in Spain where cell service could be overwhelmed on eclipse day, the app works offline once unlocked. So, geolocation and contact time calculation are all done within the app. This makes it a true "field tool." The app is free to try, and for only a $1.99 in-app purchase to unlock the 2026 eclipse, it's an easy "yes" for anyone who has invested time and travel to be in the path of totality. In-App Video Tutorial: The first button on the Home Screen provides a comprehensive tutorial that explains all the app's functions and how to use them effectively. Audio and Notification Tests: The second button lets users run a "device sound check" to confirm that audio cues, spoken timings, and notifications are audible, which is critical since the app is designed to talk to you. Practice Session Video: The third button launches a 4-minute-45-second video of my actual eclipse-day observation site in 2024, synchronized with the app's real-time announcements. This allows both observers and photographers to practice their routines repeatedly, such as observing for shadow bands, adjusting shutter speeds, and knowing when to remove solar filters. Additionally, dialogue boxes appear as functions are selected, giving you more guidance. On eclipse day, after you get into the path, you can be timing the eclipse in 3 easy steps: 1. Tap to geolocate. 2. Tap to have the app calculate the precise contact times. 3. Tap to load the times into the timer. That's it! You are timing the eclipse. A major convenience feature of the app is the automatic calculation of the clock times needed to capture a perfect set of partial-phase images before and after totality. It is the only app in the world with this function. Collaborating with the late Fred Espenak (Mr. Eclipse) on Photographers Mode before the 2024 eclipse gives the app an incredible pedigree. For pros who need to stay "in the zone" and only care about timing and countdowns from C1 through C4, this mode is a game-changer. You can manually enter coordinates and save the site as a file. This helps compare multiple potential viewing locations. The app includes a hyperlink to the Solar Eclipse Timer website, which gives access to downloadable worksheets to record your partial-phase image times or the chores you want to do in Photographers mode, as well as my Master Stop Chart to count full and partial camera stops. I have observed and photographed six total solar eclipses and one annular eclipse. The concept of an eclipse “talking” timer was developed by me in 2002. I have been helping people time eclipses for almost 25 years. When you use the app, you will appreciate that it was designed by an eclipse chaser. There is also a link to learn more about my comprehensive eclipse observation and photography book, now in its second edition, titled “Eclipse Day.” The app also has a partial eclipse timing mode. This app is ad-free and does not track any user data. ALWAYS USE EYE PROTECTION DURING THE PARTIAL PHASES OF A SOLAR ECLIPSE! OR EVEN WHEN IT IS BRIGHT! NOT DOING SO CAN CAUSE EYE DAMAGE! We are NOT liable for misuse of the app, causing inaccurate timing, or the lack of eye safety precautions during the observation of a solar eclipse. The "glasses off" and "glasses on" statements are guides based on the calculated contact times. The timing can be affected by your phone's clock and the shape of the shadow due to the edge of the lunar limb. Use the Adjust buttons for Lunar Limb variation time adjustments. Glasses should be ON if it's bright!

Screenshots

The Photographer's Ephemeris4 screens
Solar Eclipse Timer4 screens

Verdict

The call

The clearest difference is price: Solar Eclipse Timer at Free against The Photographer's Ephemeris's $9.99. Solar Eclipse Timer also leads on update cadence (monthly vs every 2 months) and iOS requirement (12.0 vs 17.6). The Photographer's Ephemeris's advantage is rating (4.8 vs 3.8) and review sentiment (81% vs 69%). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Solar Eclipse Timer is free to download; The Photographer's Ephemeris costs $9.99 up front. The Photographer's Ephemeris sells 3 one-off in-app purchases and Solar Eclipse Timer sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

The Photographer's Ephemeris holds the better App Store score, 4.8 against 3.8. Both are backed by a comparable volume of ratings — 1.6K and 561 respectively. Written reviews point the same way: 81% of The Photographer's Ephemeris's written reviews are positive against 69% of Solar Eclipse Timer's.

UpkeepUpdate frequency

The Photographer's Ephemeris ships an update every 2 months, Solar Eclipse Timer monthly. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

Scorecard6 real differences · 5 level
The Photographer's Ephemeris versus Solar Eclipse Timer: the parameters behind the verdict, then further details
ParameterThe Photographer's EphemerisSolar Eclipse Timer
Price$9.99Free — better
Rating4.8 (1.6K ratings) — better3.8 (561 ratings)
Positive reviews81.0% of reviews — better68.6% of reviews
Number of ratings1.6K — better561
Update frequencyEvery 2 monthsMonthly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#43 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.612.0 — better
Further details — not scored
Size95 MB231 MB
Age rating4+17+
DeveloperCrookneck Consulting LLCFoxwood Astronomy, LLC.

Customer experience

The Photographer's Ephemeris

All ratings1,553 ratings
Positive94.9%
Neutral2.1%
Negative3.0%
Written reviews373 reviews
Positive81.0%
Neutral7.0%
Negative12.1%

Solar Eclipse Timer

All ratings560 ratings
Positive68.0%
Neutral4.3%
Negative27.7%
Written reviews159 reviews
Positive68.6%
Neutral7.5%
Negative23.9%

User reviews

The Photographer's Ephemeris

From 1.6K App Store ratings

What we love

  • 🚀 Excellent planning tool
  • 🌄 Accurate sun/moon tracking
  • 📍 Useful location-based features
  • 🔍 Detailed information for photographers
  • 🎨 Helps create better photos

Room to improve

  • 🤯 Steep learning curve
  • 🔍 Difficult to use interface
  • 🔌 Skyfire feature not reliable
  • 🗺️ Mapping issues in some areas
  • 🔒 Subscription model for some features

Solar Eclipse Timer

From 561 App Store ratings

What we love

  • 🚀 Accurate timing and announcements
  • 👍 Enhanced eclipse viewing experience
  • 🎉 Worked flawlessly for 2017 and 2024 eclipses
  • 💡 Helpful for photographers and non-photographers
  • 🔊 Useful audio cues and prompts

Room to improve

  • 🐛 Occasional crashes or glitches
  • 🔍 Confusing or cluttered user interface
  • 🔋 Audio prompts not working in some cases
  • 🗺️ Inaccurate location detection or totality information

Bugs and requests

The Photographer's Ephemeris

Reported bugs

3 issues
  • Crashes when loading TPE-3D
  • Logout issues with Skyfire subscription
  • Inaccurate elevation data in some locations

Requested features

5 requests
  • Add tide information
  • Improve location saving and syncing
  • Provide better tutorials and documentation
  • Integrate with other photography apps
  • Add support for more regions/countries

Solar Eclipse Timer

Reported bugs

3 issues
  • App crashing when loading timing data
  • Notifications not working when camera is in use
  • Incorrect contact times displayed for some locations

Requested features

5 requests
  • Customizable reminders or timers
  • Automatic time zone and location updates
  • Lunar eclipse support
  • Improved onboarding and tutorial
  • Countdown timer with graphical depiction

In-app purchases

3 purchases

The Photographer's Ephemeris

One-time3
  • Upgrade to Skyfire Plus (3-months)$4.99
  • Skyfire (3-months)$9.99
  • Skyfire Plus (3-months)$12.99
6 purchases

Solar Eclipse Timer

One-time6
  • Total - 7/2/19; Chile, Argenti$1.99
  • Total - 12/14/20; Chile, Argen$1.99
  • Total – 12/4/21; Antarctica$1.99
Show 3 more
  • Hybrid – 4/20/23; Australia$1.99
  • Total – 4/8/24; USA, Mexico$1.99
  • Solar Eclipse Timer$1.99

Questions

Is The Photographer's Ephemeris free?
The Photographer's Ephemeris costs $9.99, and also offers in-app purchases.
Is Solar Eclipse Timer free?
Solar Eclipse Timer is free to download, with in-app purchases available.
Which has better reviews, The Photographer's Ephemeris or Solar Eclipse Timer?
The Photographer's Ephemeris is rated higher. The Photographer's Ephemeris averages 4.8 out of 5 from 1.6K ratings, while Solar Eclipse Timer averages 3.8 from 561 ratings.
Do The Photographer's Ephemeris or Solar Eclipse Timer have ads?
Neither The Photographer's Ephemeris nor Solar Eclipse Timer shows ads.
Which is updated more often, The Photographer's Ephemeris or Solar Eclipse Timer?
The Photographer's Ephemeris ships an update every 2 months, and Solar Eclipse Timer monthly. Most recently, The Photographer's Ephemeris was updated on November 1, 2026 and Solar Eclipse Timer on November 2, 2026.

Other comparisons