CollimateScope

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Everyone
50+
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Content rating
Everyone
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About this app

CollimateScope turns your smartphone into a precision collimation aid for Newtonian reflector telescopes. Mount your phone over your Cheshire eyepiece or collimation cap using a phone adapter, and use the on-screen reticle to align your secondary and primary mirrors quickly and accurately.

Watch the full collimation tutorial on YouTube before purchasing to see exactly how it works:
https://www.youtube.com/watch?v=kHTxLxtN4CU

— HOW IT WORKS —

Insert your phone into the focuser using a phone-to-eyepiece adapter. CollimateScope displays a live camera feed with a configurable reticle overlay. Use the circles and crosshair to align your secondary and primary mirrors visually — no dedicated hardware required.

— FEATURES —

- Configurable red outer circle for edge ring alignment
- Green inner circle for secondary mirror alignment
- Yellow crosshair for primary mirror center dot alignment
- Cyan and magenta circles for primary mirror reflection alignment
- Fine-tune arrows on every slider for precision adjustments
- Manual camera controls: ISO, shutter speed, focus, and zoom
- Save and load named presets for different telescopes
- Settings persist between sessions — pick up exactly where you left off
- Built-in step-by-step onboarding tutorial
- Screen stays on while collimating

— WHAT YOU NEED —

- A Newtonian reflector telescope
- A phone-to-eyepiece adapter
- A Cheshire eyepiece or collimation cap

— COMPATIBLE TELESCOPES —

Any Newtonian reflector telescope with a standard 1.25" or 2" focuser, including Dobsonians and Newtonian astrographs.

— NO ADS. NO SUBSCRIPTIONS. NO DATA COLLECTED —

CollimateScope is a one-time purchase. No internet connection required to use the app. No personal data is collected or transmitted. All settings are stored locally on your device.

Clear skies.
Turn your phone into a collimation tool for Newtonian reflector telescopes.
Updated on
Jun 30, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
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What’s new

- Now available to switch languages in Settings, Below are the Supported languages :

English
Español
Français
Deutsch
Italiano
Polski
Nederlands
简体中文
繁體中文
日本語
한국어
Bahasa Indonesia
Filipino

- Screenshot button

Thanks for using CollimateScope! Clear skies.
Content rating
Everyone
Learn more

App support

About the developer
Kevin Anatta Foong
kevinanatta@gmail.com
Jl.Papirus Blok B10 No.10, Cluster Serenade Lake, RT 003/ RW 021 Kabupaten Tangerang Banten 15811 Indonesia