SunSketcher vs Equus AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SunSketcher
Capture crucial data during the Great North American Eclipse. This app automatically takes photos of the sun, helping scientists create a precise model of its shape and study solar interior flows. Participate in citizen science from your smartphone.
- Automatic eclipse photography
- Location-based timing for totality
- Data upload for scientific analysis
- Citizen science participation
- Contributes to heliophysics research
- No special equipment needed
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SunSketcher is a citizen science initiative anyone can use to photograph the April 8th, 2024 Great North American Eclipse. Mass participation will generate an incredible database of images that, when analyzed together, could allow scientists to more accurately model the Sun. "We don't know the shape of the Sun?" you ask. Nope. Well, not exactly. Scientists have a pretty good idea, but it's not nearly as precise as it could be. Our hope is to change that—to measure the Sun's oblateness to an accuracy of a few parts in a million! This app uses your location to determine the time that totality will start and end there. This allows it to automatically take photos chock-full of data of the eclipse while you don't have to worry about the precise details! After totality, you can choose to upload the photos that were taken, along with a few other details about your location at the time of the eclipse and what settings your phone's camera was using, to our data servers for scientific analysis. What is citizen science? Citizen science is a collaborative style of research involving volunteers from the general public. The contributions of these “citizen scientists” help researchers collect and analyze large datasets. Citizenship is NOT a requirement. How will this project contribute to heliophysics research? We are aiming to create the first large-scale database of Baily's Bead images, which will allow the Sun’s shape to be precisely determined to within a few parts per million. Just as the precise shape of the Earth’s ocean surface allows us to determine flows inside the Earth, the SunSketcher database will allow us to study flows in the solar interior. In addition, knowing the precise shape of the Sun will allow physicists to test against and possibly disprove different theories of gravity, including General Relativity! Are there requirements or qualifications needed to participate? Can I participate if I’m not a scientist? You do not need to be a scientist to participate. Our aim is to involve as large and diverse a group of SunSketchers as possible. Why should I participate in SunSketcher? The unique aspect of SunSketcher is that everyone with a phone can make a valuable contribution to a state-of-the-art science project. No special equipment is required, just a smartphone. And, if you register as a SunSketcher on our site, we will add your name to the list of contributors. You might even get mentioned as a Guinness World Record Holder! Where do I have to be on the eclipse day? Anywhere inside the path of totality. Will I be able to watch the eclipse at the same time that I'm using SunSketcher? YES!! In fact, we encourage you to view the eclipse on your own (with appropriate safety precautions at appropriate times) while SunSketcher is running on your phone. The scientific quality of the images obtained will be best if the phone is left untouched throughout the few minutes between the start and end of totality. The app will be finished with the nitty-gritty science stuff just a minute or two after totality ends, at which point you can pick up and begin using your phone again.
Equus AI
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Equus AI — Horse Health. Reinvented. Your horse can’t text you when something’s wrong. Equus AI watches for you — every minute, 24/7. Equus AI uses advanced computer vision and artificial intelligence to automatically detect abnormal behaviors, spot early signs of colic, track eating & drinking habits, monitor rest, and alert you instantly when something looks off — even when you’re not at the stable. Built by horse people, for horse people — with veterinary guidance. Key Features • 24/7 stall monitoring Live HD video you can access from anywhere. • AI behavior detection Automatic detection of eating, drinking, laying down, pacing, distress, human intrusion, and more. • Instant smart alerts Push notifications right to your phone when Equus AI detects behavior outside normal patterns. • Behavior history & trends See your horse’s habits over time: eating frequency, time spent resting, activity variation. • Multi-horse support Monitor multiple horses and stalls in one app — perfect for boarding barns & trainers. • Requires no wearable Just a camera. No halters, no trackers, no tags. Why Equus AI Early colic detection saves lives. Behavior is data — Equus AI turns that data into peace of mind. Whether you’re at work, traveling, or resting at night — your horse is never unobserved. Equus AI is the future of equine care.
Screenshots
Verdict
The clearest difference is update cadence: Equus AI at weekly against SunSketcher's fortnightly. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
SunSketcher ships an update fortnightly, Equus AI weekly. The most recent releases landed on October 3, 2026 and October 25, 2026 respectively.
| Parameter | SunSketcher | Equus AI |
|---|---|---|
| Price | Free | Free |
| Rating | 2.6 (23 ratings) — better | — |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 23 — better | — |
| Update frequency | Fortnightly | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 26 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | Western Kentucky University | Equus Ai LLC |
In-app purchases
SunSketcher
No in-app purchases
Equus AI
No in-app purchases









