FocalGap
Lifestyle
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
FocalGap helps telescope users understand how an optical setup distributes magnification across available eyepieces. Add a telescope, eyepieces, and an optional Barlow lens to examine the spacing between viewing powers and the effect of different combinations. The app presents a clear visual map of coverage, highlights larger gaps, and supports thoughtful equipment planning before an observing session, whether you are reviewing a familiar setup or considering a new eyepiece.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Fixed bugs and optimized the user experience.
The developer, 幸 梁, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 幸 梁
- Size
- 10 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- Copyright © 2026 FocalGap. All rights reserved.