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Screenshots

  • FocalGap screenshot 1
  • FocalGap screenshot 2
  • FocalGap screenshot 3
  • FocalGap screenshot 4

About FocalGap

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.

What’s new

Version 1.0.2 · Updated September 16, 2026

Fixed bugs and optimized the user experience.

App privacy

The developer, 幸 梁, reported these privacy practices to Apple.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Usage Data: Product Interaction

Data Linked to You

The following data, which may be collected and linked to your identity, may be used for the following purposes:

  • Usage Data: Product Interaction

Used for: Analytics

Data Not Linked to You

The following data, which may be collected but is not linked to your identity, may be used for the following purposes:

  • Diagnostics: Crash Data, Performance Data

Used for: Analytics

Alternatives to FocalGap

Looking for apps like FocalGap? Here are 6 similar apps on the App Store. The highest rated is Golden Surveys - Earn Cash (4.7/5), and all 6 are free to download.

FocalGap vs. alternatives
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Golden Surveys - Earn Cash 4.7 / 5 (8,315) Free Oct 5, 2026 Compare
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