Solar Eclipse Timer vs DWARFLAB
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Offline eclipse timing
- Precise contact time calculation
- Photographer mode
- Automatic partial-phase image timing
- Geolocation and manual coordinate entry
- Audio and notification tests
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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!
DWARFLAB
This app connects wirelessly to a smart telescope, offering intuitive control for capturing stunning images of the night sky and dynamic terrestrial scenes. It features automatic tracking, in-app image processing, and panorama creation for both astrophotography and everyday use.
- Wireless telescope connection
- In-built star atlas for astrophotography
- Automatic celestial and motion tracking
- In-app image stacking and post-processing
- Gigapixel panorama creation
- Time-lapse photography
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DWARFLAB smart telescope, empowered by advanced technology, opens up a world of diverse perspectives for users, capturing the wonders of life. No guidance or experience needed, it's ready to use out of the box. Wireless Connection Use the App to connect wirelessly with DWARFLAB smart telescope, enabling not only precise control but also making the shooting process more flexible and efficient. Astrophotography The App features an in-built star atlas, allowing you to simply tap on the celestial you desire to proceed with automatic star tracking and enjoy real-time image stacking. You can also adjust the astro curves and personalize the color grading to create your own 4K astronomical images. In-App Post Processing Capture, select, stack, and enhance — all in one seamless workflow for astrophotography. Supports both onboard stacking and cloud-based processing, with multi-format export options to make every astro image crisp and brilliant. Motion Tracking You can freely select the target to track on the shooting interface, enjoying the flexibility of manual selection; or you can use the telescope's automatic recognition function, which intelligently identifies tracks, and starts recordings, easily capturing dynamic scenes such as bird predation, flights, and sports close-ups. Gigapixel Panorama Simply set the shooting range and tap to start — with one-click stitching, you can create extremely detailed and vast panoramic images, supporting deep zoom and experiencing an unprecedented level of detail richness. Time-Lapse Photography Capture the flow and changes of time, recording the hustle and bustle of traffic, the blooming and wilting of flowers. Combined with astronomical tracking functions, it can also record the trajectory of the sun, solar/lunar eclipses, and the star trails.
Screenshots
Verdict
The clearest difference is in-app purchases: DWARFLAB at none against Solar Eclipse Timer's 6. Solar Eclipse Timer's advantage is review sentiment (68% vs 36%) and rating (3.8 vs 3.5). On price, update cadence, ads and device support 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
Both are free to download. Solar Eclipse Timer sells 6 one-off in-app purchases. DWARFLAB asks for nothing beyond the download.
Solar Eclipse Timer holds the better App Store score, 3.8 against 3.5. Both are backed by a comparable volume of ratings — 561 and 145 respectively. Written reviews point the same way: 68% of Solar Eclipse Timer's written reviews are positive against 36% of DWARFLAB's.
Solar Eclipse Timer ships an update monthly, DWARFLAB every 5 weeks. The most recent releases landed on October 22, 2026 and October 30, 2026 respectively.
| Parameter | Solar Eclipse Timer | DWARFLAB |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (561 ratings) — better | 3.5 (145 ratings) |
| Positive reviews | 68.4% of reviews — better | 36.0% of reviews |
| Number of ratings | 561 — better | 145 |
| Update frequency | Monthly — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15 |
| Further details — not scored | ||
| Size | 231 MB | 219 MB |
| Age rating | 17+ | 4+ |
| Developer | Foxwood Astronomy, LLC. | Tinyphoton (Wuhan) Technology. Co., Ltd. |
Customer experience
Solar Eclipse Timer
DWARFLAB
User reviews
Solar Eclipse Timer
From 561 App Store ratingsWhat 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
DWARFLAB
From 145 App Store ratingsWhat we love
- 📸 High-quality astrophotography results
- 💰 Excellent value for price
- 🎯 Intuitive sky atlas and target selection
- 🔄 Frequent app updates and improvements
- ⚡ Responsive developer team
Room to improve
- 🔌 Persistent WiFi connectivity issues
- ⏱️ Slow connection establishment (15-30 minutes)
- 🐛 Frequent app crashes and freezes
- 📉 Tracking frame drops (25% loss reported)
- 🔄 Connection drops after minutes
Bugs and requests
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
DWARFLAB
Reported bugs
21 issues- WiFi connection fails repeatedly or drops within seconds
- App crashes on iOS 18 and older iOS versions
- Account creation security verification fails
- Full-screen mode freezes with no escape option
- Autofocus produces inconsistent or blurry results
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- Manual focus unresponsive
- Tracking takes excessive time to initiate
- Dark frame calibration lines appear and ruin images
- Temperature-related calibration failures
- Settings reset to defaults after stacking
- IR Cut/Pass filter constantly resets to Pass mode
- Photo saving to album is inconsistent (hit or miss)
- App freezes when changing camera systems
- Inverted controls and flipped image display
- Battery icon obscures capacity readout on iPhone
- STA mode connectivity broken
- Firmware update errors prevent connection
- Image preview not displaying in app
- Joystick controls unresponsive intermittently
- Wide and telephoto lens menu settings reversed
- App incompatible with iOS versions below 15
Requested features
13 requests- One-tap return to home and power off function
- Panorama/mosaic image merging capability
- Comet-aligned tracking mode
- Dew control for iOS (available on Android)
- iPad-optimized app version
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- Histogram display in app
- Burst mode functionality
- External Barlow lens support
- Mac M-series silicon compatibility
- Ability to skip firmware updates until convenient time
- Milky Way capture documentation for Dwarf Mini
- Photo album integration improvements
- STA mode WiFi connectivity fix
In-app purchases
Solar Eclipse Timer
- Total - 7/2/19; Chile, Argenti$1.99
- Total - 12/14/20; Chile, Argen$1.99
- Total – 12/4/21; Antarctica$1.99
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- Hybrid – 4/20/23; Australia$1.99
- Total – 4/8/24; USA, Mexico$1.99
- Solar Eclipse Timer$1.99
DWARFLAB
No in-app purchases








