Astro Tools vs TRITON GOTO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Astro Tools
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Every astronomy tool, in a single app. Astro Tools brings together the astronomy tools from Polar Scope Align Pro and Xasteria, while adding new tools including an Augmented Reality Sky Planner, Astro Camera, Plate Solver and a Digital Finderscope. It is a complete toolkit for amateur astronomers: plan the night, find targets, aim a telescope, check the weather, follow satellites, calculate an imaging setup and explore the sky - all from one app. PLAN THE NIGHT SKY Use any date, time and location to plan ahead. Browse Moon phases by month, with Moon and Sun rise, set and altitude graphs plus twilight times. Compare astronomy-focused forecasts for cloud layers, seeing, transparency, wind and precipitation, or use the Multi forecast to combine 7Timer’s astronomy data with MET Norway or Apple Weather forecasts. Check aurora forecasts, light pollution, animated satellite cloud maps, and the visibility of the ISS and other bright satellites. WIDGETS Keep essential observing information on your Home Screen. Widgets provide astronomy weather forecasts, aurora conditions and upcoming satellite passes. FIND AND OBSERVE Explore more than 22,000 deep-sky objects, stars and Solar System targets. Search, filter and create observing lists, then see object details and altitude charts. Turn a manual telescope into a Push-To system: attach your phone, select a target and follow live arrows. Sync on a known star or use star-hopping for improved accuracy. Digital Finderscope provides a live, zoomable sky map that follows your phone and guides you to a selected target. SEE THE SKY IN AUGMENTED REALITY AR Sky Planner overlays a star chart on your live camera view. Move through time to see where targets will be above the horizon or behind landmarks, whether you are planning an observing session or a nightscape photograph. CAPTURE, EDIT AND PLATE-SOLVE ASTROPHOTOS Astro Camera offers manual controls for photos and time-lapses, Star Trail mode with optional fading, and Deep Stack / Long Exposure mode to align and stack images taken with a tripod or tracker. Star Assist measures a selected star live to help you focus, while an optional sky overlay helps frame your shot. Photo Editor opens JPEG, TIFF, RAW and FITS images, or an Astro Camera stack. Develop RAW photos, adjust exposure, curves, colour and detail, crop and export. Plate Solver identifies stars in a photo to find its sky coordinates, field of view and orientation. Overlay constellation lines and object labels on the image. ALIGN, MEASURE AND CONTROL Polar-align a star tracker or equatorial mount without a polar scope, even in daylight. Start with the compass or calibrate using the camera on the Sun, Moon or stars. Use Laser / Hop Align when the pole star is obstructed, measure level and tilt, inspect GPS and sensor data, or control compatible WiFi mounts (iOptron, Pegasus Nyx and more). FOR OBSERVERS AND IMAGERS More than 30 calculators cover observing and astrophotography, with shared inputs and remembered values for quick comparisons. Find and simulate solar eclipses for your exact location, and use tools for field of view, magnification, exposure, focal length, image scale and more. Whether you observe with binoculars, a manual telescope, a GoTo mount or an imaging rig, Astro Tools keeps the information and practical tools you need close at hand. Many tools are completely free, for the rest there is a single Pro subscription with a free trial. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
TRITON GOTO
This app simplifies controlling your OnStep telescope. It integrates telescope operation, an interactive sky chart, alignment tools, and 3D visualization for observing and astrophotography. Ideal for both beginners and advanced users of DIY equatorial mounts.
- Interactive sky chart with one-tap GOTO
- Visual three-star and polar alignment assistance
- Real-time 3D telescope orientation model
- Comprehensive telescope controls (slewing, manual movement, tracking)
- Meridian flip and limit monitoring
- Coordinate synchronization and position calibration
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TRITON GOTO makes controlling an OnStep telescope easier. One app brings together the control features you use most in everyday operation. Designed specifically for OnStep and OnStepX systems, TRITON GOTO is a comprehensive telescope control app that combines telescope operation, an interactive sky chart, alignment tools, and real-time 3D visualization to support your observing and astrophotography workflows. Whether you are an astronomy enthusiast beginning to explore the night sky or an advanced user building a DIY equatorial mount, TRITON GOTO helps you set up and operate your telescope more easily and efficiently. Interactive Sky Chart and GOTO: Explore the night sky with the built-in sky chart engine. • Select celestial objects directly from the sky chart • Send your telescope to a target with one-tap GOTO control • Plan visual observations and astrophotography compositions Visual Alignment Tools: Make telescope setup simpler and more intuitive. • Visual three-star alignment • Visual polar alignment assistance • Coordinate synchronization and position calibration • Ideal for DIY equatorial mounts and custom GOTO systems 3D Telescope Model: See your telescope's current orientation in real time. • Synchronize the 3D model with the telescope's status in real time • View the telescope's pointing direction at a glance • Monitor right ascension, declination, and changes in mechanical orientation • Confirm system status while troubleshooting or observing Complete Telescope Controls: TRITON GOTO provides comprehensive control of your OnStep system. • Automatic GOTO slewing • Manual movement and directional controls • Tracking rate settings for sidereal, solar, and lunar motion • Guiding rate adjustment • Park and Home controls • Meridian flip settings • Limit and safety status monitoring From completing your first telescope alignment to carrying out advanced astrophotography sessions, TRITON GOTO reduces time spent on complex equipment setup so you can spend more time exploring the universe.
Screenshots
Verdict
The clearest difference is in-app purchases: TRITON GOTO at none against Astro Tools's 3. TRITON GOTO also leads on ratings volume (4 vs 1). Astro Tools's advantage is update cadence (every 2 weeks vs every 5 weeks). On price, rating, 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. Astro Tools sells 3 in-app purchases, starting at $0.99 per month. TRITON GOTO asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Astro Tools against 5.0 for TRITON GOTO. Both are backed by a comparable volume of ratings — 1 and 4 respectively.
Astro Tools ships an update every 2 weeks, TRITON GOTO every 5 weeks. The most recent releases landed on November 1, 2026 and October 28, 2026 respectively.
| Parameter | Astro Tools | TRITON GOTO |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (4 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 4 — better |
| Update frequency | Every 2 weeks — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15 | 15.0 |
| Further details — not scored | ||
| Size | 35 MB | 64 MB |
| Age rating | 4+ | 4+ |
| Developer | Dimitrios Kechagias | 鹤峰 林 |
In-app purchases
Astro Tools
- Astro Tools Pro Monthly3 Days trial$0.991 Month
- Astro Tools Pro 6 Months3 Days trial$2.996 Months
- Astro Tools Pro Annual3 Days trial$4.991 Year
TRITON GOTO
No in-app purchases







