Comparison

Astro Tools vs OpenAirBook

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

Astro Tools

Features
Read full description

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/

About

OpenAirBook

Features
Read full description

OpenAirBook is the flight management app for drone pilots and operators in Spain. It brings together planning, execution, documentation and traceability for every UAS operation in one place. SMART PLANNING Plan flights by current location or search, drawing the area or point on the map. Check official ENAIRE restrictions (seven layers: geographical zones, NOTAMs, aerodromes and more) before flying. Direct link to the NOTAM ICARO portal. Real-time weather, a five-day forecast and the Kp geomagnetic activity index. Planning, pre-flight and post-flight checklists tailored to each operation, with official EASA and NON EASA content (open category, operational authorisation and STS). COMPLETE FLEET MANAGEMENT Register your drones with a guiding assessment of regulatory requirements. Maintenance and UAS actions with reminders. Pilot licences and certifications with PDF or image attachments. ADMINISTRATIVE PROCEDURES Request the urban-environment flight permit from the Ministry of the Interior directly from the app: we guide you step by step, pre-fill your details on the official electronic office form, and help you complete the signature from your computer. REPORTS AND TRACEABILITY Generate PDF reports for each flight, your full logbook, and pilot or team history. Report incidents with type, severity and linked flight, with history and export via email or WhatsApp. TEAM WORK (BUSINESS) Manage pilots, flights, tasks and approvals for your whole team from a centralised panel. Invite pilots and track each one's activity. AI ASSISTANT Get help with planning, risk, regulations and flight zones from AI built into the app. Available in Spanish and English. Regulatory and weather information is for guidance only: always check official sources (AESA, ENAIRE) before flying. Plans available: Free, Pro and Business, with expanded features to suit your needs.

Screenshots

Astro Tools4 screens
OpenAirBook4 screens

Verdict

The call

The clearest difference is update cadence: OpenAirBook at every 5 days against Astro Tools's every 2 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Astro Tools sells 3 in-app purchases, starting at $0.99 per month and OpenAirBook sells 7 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Astro Tools ships an update every 2 weeks, OpenAirBook every 5 days. The most recent releases landed on October 29, 2026 and October 8, 2026 respectively.

Scorecard1 real difference Β· 5 level
Astro Tools versus OpenAirBook: the parameters behind the verdict, then further details
ParameterAstro ToolsOpenAirBook
PriceFreeFree
Update frequencyEvery 2 weeksEvery 5 days β€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15 β€” better15.1
Further details β€” not scored
Size35 MB52 MB
Age rating4+4+
DeveloperDimitrios Kechagiasalberto imbernol

In-app purchases

3 purchases

Astro Tools

Subscriptions3
  • 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
7 purchases

OpenAirBook

Subscriptions7
  • Add-on IA BΓ‘sico$1.991 Month
  • addon_ia_medio$2.991 Month
  • Plan Pro Mensual$3.991 Month
Show 4 more
  • Add-on IA Pro$8.991 Month
  • Plan Business Mensual$24.991 Month
  • Plan Pro Anual$44.991 Year
  • Plan Business Anual$249.991 Year

Questions

Is Astro Tools free?
Astro Tools is free to download, with in-app purchases available.
Is OpenAirBook free?
OpenAirBook is free to download, with in-app purchases available.
Do Astro Tools or OpenAirBook have ads?
Neither Astro Tools nor OpenAirBook shows ads.
Which is updated more often, Astro Tools or OpenAirBook?
Astro Tools ships an update every 2 weeks, and OpenAirBook every 5 days. Most recently, Astro Tools was updated on October 29, 2026 and OpenAirBook on October 8, 2026.

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