Cedar Aim vs StoneBusters
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cedar Aim
This app connects to a specialized finder device to help you precisely locate celestial objects with your telescope. It uses star pattern recognition for real-time position detection and provides intuitive guidance for fast object finding. Enjoy seamless operation without an internet connection.
- Real-time telescope position detection
- Fast star pattern recognition
- Intuitive directional guidance
- Comprehensive celestial object database
- Works with any telescope mount
- Completely local operation
- Seamless wireless connection
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Cedar Aim™ is the companion mobile app for the Hopper™ electronic finder from Clear Skies Astro. Cedar Aim helps you point your telescope precisely towards any celestial object with ease. How It Works Cedar Aim connects to your Hopper device, which captures real-time images of the sky where your telescope is pointed. By matching star patterns, Cedar Aim instantly determines your telescope's exact position in the sky. Choose your target object and follow the guidance on your mobile device to move your telescope precisely to your selection. Key Features • Real-time telescope position detection through fast star pattern recognition • Intuitive directional guidance system for fast object location • Access to comprehensive celestial object database including Messier, NGC, IC, and planetary targets • Works with any telescope mount - no motorization required • Completely local operation - no internet connection needed during use • Seamless wireless connection to your Hopper device Perfect For • Amateur astronomers seeking efficient object location • Stargazing sessions with family and friends • Astronomy educators and club outreach events • Anyone who wants to spend more time observing and less time searching Requirements • Hopper™ electronic finder device (sold separately by Clear Skies Astro) • Telescope (any mount type - no motorization required) • iOS device with GPS and WiFi capability • Clear view of the night sky Cedar Aim eliminates the frustration of traditional star-hopping by providing precise, automated guidance to thousands of celestial objects. Whether you're hunting down faint galaxies or showing Saturn to curious children, Cedar Aim ensures you'll find your targets quickly and confidently. Experience the future of visual astronomy with Cedar Aim and Hopper— where technology meets the timeless wonder of stargazing.
StoneBusters
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On the mobile screen, users can access data from the Minor Planet Center, such as the NEO Confirmation Page (NEOCP) and the Possible Comet Confirmation Page (PCCP). A list of recently observed NEOs, organized by classification: unnumbered single-opposition, multiple-opposition, and numbered objects. Object from NEOfixer (University of Arizona) may be visualized, filtered and sorted. A personalized “starred” list let the user to have a list of preferred objects available for quick view and a custom list of selected objects, based on various physical and observational parameters may also be listed. Additionally, a list of objects that were removed from the NEOCP is available, with each object graphically categorized by its final classification (e.g., NEO, comet, artificial object, missing object, etc.). Once an object is selected, the app provides detailed information, including: an observation summary (observatory codes and details), Ephemeris calculation, Orbital elements and uncertainty orbit graphic representation for NEO. Users can also "identify" an object displaying physical and orbital data retrieved from NASA JPL's Solar System Dynamics (SSD) database. This includes secondary designations, discovery circumstances, and citation text (if available). There is also the possibility to “WAMO” an object with personal MPC observatory code to obtain the status of observation, and also have Summary WAMO data visualized as bar histograms and tables. As a curiosity—and to assist users without an observatory code—if location permissions are enabled, the app can list the 30 nearest observatory codes based on distance from the user's device. (For security reasons, the exact coordinates or map positions of the observatories are not displayed, and never will be.) The app relies on APIs provided by: - The International Astronomical Union's Minor Planet Center - NASA Jet Propulsion Laboratory's SSD and CNEOS (Center for Near-Earth Object Studies) - NEOfixer (University of Arizona) Some calculations, such as topocentric ephemerides, are performed directly on the device. While the app provides convenient, on-the-fly previews of information, users are strongly encouraged to refer to the official sources mentioned above for authoritative and professionally calculated data.
Screenshots
Verdict
Cedar Aim and StoneBusters are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on September 23, 2026 and August 17, 2026 respectively.
| Parameter | Cedar Aim | StoneBusters |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 51 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | Clear Skies Astro LLC | FABRIZIO TOZZI |
In-app purchases
Cedar Aim
No in-app purchases
StoneBusters
No in-app purchases








