Birdock vs SunSketcher
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Birdock
Instantly identify visiting bird species by taking a photo or recording a video. Advanced sensing technology quickly detects birds, enabling real-time observation of their activities.
- Automatic bird species detection
- Photo and video analysis
- Real-time observation
- High-speed processing
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We can accurately detect visiting bird species through the automatic sensing function. A high-speed superchip can determine the presence of bird visitors within seconds, allowing you to observe their real-time activities promptly!
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.
Screenshots
Verdict
The clearest difference is rating: SunSketcher at 2.6 against Birdock's 1.5. SunSketcher also leads on review sentiment (33% vs 4%). Birdock's advantage is device support (3 vs 1) and ratings volume (74 vs 23). On price, update cadence, ads and in-app purchases 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 holds the better App Store score, 2.6 against 1.5. Both are backed by a comparable volume of ratings — 74 and 23 respectively. Written reviews point the same way: 4% of Birdock's written reviews are positive against 33% of SunSketcher's.
Birdock ships an update every 3 weeks, SunSketcher fortnightly. The most recent releases landed on October 22, 2026 and October 3, 2026 respectively.
| Parameter | Birdock | SunSketcher |
|---|---|---|
| Price | Free | Free |
| Rating | 1.5 (74 ratings) | 2.6 (23 ratings) — better |
| Positive reviews | 4.4% of reviews | 33.3% of reviews — better |
| Number of ratings | 74 — better | 23 |
| Update frequency | Every 3 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 31 MB | 26 MB |
| Age rating | 17+ | 4+ |
| Developer | Shenzhen Pengchuangda Industry Co., Ltd | Western Kentucky University |
Customer experience
Birdock
SunSketcher
In-app purchases
Birdock
No in-app purchases
SunSketcher
No in-app purchases









