# Totality by Big Kid Science — user reviews > 46 indexed App Store user reviews of Totality by Big Kid Science by Germinate LLC, rated 4.50/5 from 70 ratings. - Source: https://appshunter.io/ios/app/totality-by-big-kid-science/id1199242023/reviews - App overview in markdown: https://appshunter.io/ios/app/totality-by-big-kid-science/id1199242023.md - Rating breakdown: 5★ 60 · 4★ 1 · 3★ 2 · 2★ 0 · 1★ 7 ## Newest reviews (12 of 46) ### 5/5 — Excellent Solar Eclipse App! *2024-03-12* Having many un-fond memories of plotting the centerline and north & south limits of the July 11, 1991 & other total solar eclipses on photocopied paper maps, I was delighted when I discovered the Totality app a couple of months ago! The interactive eclipse track map in Totality is truly welcome. Plus, the map displays your current location, thus leaving no doubt as to your position relative to the centerline. Kudos to the highly responsive developer who has today released version 4.0.1 which fixed an intermittent crashing-on-launch issue that the 4.0.0 version released 3 days ago had, so the app is solid & stable once again. I highly recommend this easy to use (and free) app which is suitable for eclipse chasers of any level of experience. ### 5/5 — Excellent App! *2024-03-06* Very impressed with the app overall; very easy to use and it is essential especially if you have to travel somewhere in the event of bad weather. Hopefully it will be updated for the next eclipse! ### 5/5 — Wonderful App-Powerful Information *2024-02-08* Great app with lots of information. Your map information is amazing. I have sent the app link to all my friends. ### 5/5 — A great resource! *2024-01-17* This is a wonderful and easy to use tool for people making plans for the April 8 eclipse. ### 5/5 — Great app that takes a couple minutes to warm up *2023-10-12* Sometimes, the first time I use this app, there are no results when I pick my location. But after a couple minutes, it starts to work perfectly. I'm guessing that whatever server is doing the calculations goes to sleep and gets woken up. Amazing app. I love using it. I'm very excited for this Saturday and April 2024! ### 5/5 — Best eclipse app *2023-10-07, version 3.3.0* Big Kid Science, founded by astronomer Jeff Bennett, has produced lots of good astronomy education resources over the years. Their eclipse app, Totality, recently released in an updated version for the two eclipses crossing the US in the next six months, is one that should be in every eclipse chaser's toolkit. Totality's main feature is its ease of use. Dedicated eclipse chasers may want all the technical details in scientific jargon but the average family wanting to see nature's greatest spectacle just wants to know where to go, how to get there, and what to expect. Not that there isn't something in Totality for everyone. I found the unique feature that shows the closest point to the center line of annularity or totality to be fascinating. And it's handy for anyone wanting to get into the Moon's shadow by the quickest route. Once you choose the area, scouting potential viewing locations is as easy as it gets. Totality's interactive eclipse maps are based on code from Xavier Jubier's popular interactive Google Maps. The app provides directions to chosen locations by going straight to Google Maps. The details of the eclipse at the location, including timings and depth of the eclipse, along with simulations of what you'll see, are enough for anyone who doesn't require arcane details. And if you don't know C1 from C4, Totality can get you up to speed with explanations in simple, everyday language. To make a good thing even better, Totality is free to download and use, and free of ads. Big Kid Science has recently donated Totality to the American Astronomical Society to share it with a greater audience. ### 5/5 — Great app for eclipses *2023-09-28* It’s a simple app that does what it says. There’s a nice interactive map that shows the duration of totality, and an image of what the eclipse will look like at totality for that site. ### 5/5 — AMAZING APP!!! *2017-08-21* Loved this app, it is perfect!! Such an amazing app, wish there was a reason to keep it. It took the guess work out of the eclipse, I had studied maps before and this made it easy!!! Thank you for creating it!!!! ### 5/5 — Get this one *2017-08-21* I downloaded 5 "eclipse" apps and this was the only one that actually gave me the information I needed to know when I can see the eclipse at my location. The others are just full of generic information and provide no free customization. This is the one to get. ### 5/5 — Big Stars for Big Kid Science *2017-08-21* I love the interactive map feature. The details of the map surpass other apps that I have looked at in preparation of the eclipse. I've even been able to use it to pinpoint the best spot on the lake to watch! I'm an elementary science lab teacher in KY where we have a path of totality nearby so I especially appreciate the tabs available to educate people about eclipses and the section on classroom activities. Ironically, I already had some of the exact activities in my lesson plans for the next couple of weeks. The free app is definitely worth taking the time to download in time for the eclipse even if you've waited until the last minute! ### 5/5 — This App is just FANTASTIC! *2017-08-21* Congratulations for a job WELL DONE! Great interactivity, precise map and location services, and superb concept and development. Far more than what I expected. Kudos! 👏🏻👏🏻 ### 5/5 — Amazing App *2017-08-21, version 1.2* It's awesome! ## Most critical reviews (10 lowest-rated) ### 1/5 — What happened to the app *2024-05-31, version 4.1.1* Can you fix the bugs bc I can’t see the percent of the eclipse and the time ### 1/5 — Ok in the beginning *2024-03-26* When I first downloaded it for last year, it was absolutely amazing. I have done every update that they have put out but ever since the first update it’s glitchy it will not show your location even if you manually put it in it says it is not available this app was worth it in the beginning, but I would highly not recommend it ### 1/5 — Latest update *2024-03-12, version 4.0.0* The new update causes the app to crash. ### 1/5 — Version 4.0.0 Crashes *2024-03-11* This new 2026 Eclipse version crashes on launch. IPhone 13 Pro IOS 17.4. Please fix. Focus on the 2024 Eclipse. You could have waited until April 9th to release this version but no lets screw up the 2024 version a month before the eclipse. Unbelievable. **Developer response:** Apologies for the glitch that occurred when we rolled out Release 4 -- but we posted a fix within 24 hours (version 4.0.1), so it should be working fine for you now. Fyi, the reason we didn't want to wait until April 9 was because we want people who are using it for the 2024 eclipse to be more clearly aware that there are other non-US opportunities coming up. Hope you like the now-working app, and will consider revising your review. Thank you. Jeff (BigKidScience.com) ### 1/5 — Totally Off *2023-10-14, version 3.3.0* OFF BY HOURS AND HOURS. TOTALLY MISSED THE ECLIPSE… ### 1/5 — stopped working *2019-07-01, version 1.4.1* used to be awesome, now it no longer shows times when you tap, then crashes. ### 1/5 — It's Useless Now *2017-08-24* Thanks ### 3/5 — Very nice app. Timing accuracy? *2024-04-09* Very useful app. A detail - the timing prediction of the start/end of totality was different by a few minutes from what I understood to be “correct”. Is it possible that your delta T needs to updated? ### 5/5 — Very cool! *2026-07-27* This app is amazing! I’m able to track the upcoming solar eclipses and see where the best location to view is. Very interactive and easy to navigate. ### 5/5 — Amazing App *2025-10-01, version 5.0.2* I’ve used it for two total solar eclipses now. It’s been an amazing tool. ## Most praised reviews (8 highest-rated) ### 5/5 — Excellent App and worked great on April 8! *2024-04-09* This app is essential when you are traveling for a solar eclipse. I recommended it to friends and coworkers to use and everyone really thought it was effective. Hopefully there can be an app developed for lunar eclipses too! Nicely done! ### 5/5 — Very happy with this app! *2024-04-09* It was a little difficult finding my location on the map but probably in a bad location. But we found it finally, the clouds parted the timing was spot in and we saw an awesome sight! Thanks! ### 5/5 — Perfect for 4/8/2024 *2024-04-08, version 4.0.1* Easy to use app with no ads or data collected (read their privacy policy) that provides a better service than what the NSO website provides with real time location relative to the eclipse path. Why can't all apps be like this? ### 5/5 — Super easy to use *2024-04-05, version 4.0.1* Overlay of eclipse timing to google maps. Exactly what I was looking for. Free! Thank you. ### 5/5 — This is the best app *2024-03-22* It’s so good no adds so fun perfect for the eclipse it show where to go and where it is and the best thing is that when you don’t know where your house is you can just search it up on there and other places so yea everyone should get this app for sure ### 5/5 — Version 4.0.0 Crashes *2024-03-20, version 4.0.1* This new 2026 Eclipse version crashes on launch. IPhone 13 Pro IOS 17.4. Please fix. Focus on the 2024 Eclipse. You could have waited until April 9th to release this version but no lets screw up the 2024 version a month before the eclipse. Unbelievable. Update 3/20/24 The app now appears to be working as before. Credit to the developer for the response and timely fix. ### 5/5 — Amazing App! *2024-03-16* I’ve been using this app for years now! It’s incredibly intuitive, user friendly, and informative. I strongly recommend this as your app for all things eclipse related. ### 5/5 — Updated Review *2024-03-14* With the recent update that fixes the 'crash-on-launch' problem of the previous update, I am able to restore a 5 star review to this app. --- *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 2026-08-12.*