Depth of Field Calc

Depth of Field Calc

By 彤 刘

Depth of Field Calc is a technical photography utility for iOS that calculates depth-of-field and hyperfocal distances using a visual lens-barrel interface.

The App DNA

What makes this app unique?

Photographers use the app to replace mental math and generic calculators with a precise, visual reference that maps directly to manual lens operation.

For Photographers and photography students requiring precise technical calculations for depth of field, hyperfocal distance, and focus stacking.

What does it look like?

Key features

Live Clarity Bandedge

Visualizes depth-of-field scale in real time as a green zone on a simulated lens barrel.

Focus-stacking Planneredge

Calculates frame count and per-frame focus distance for macro photography with 20% overlap.

Diffraction Warningedge

Traffic light indicator based on the selected camera body's pixel pitch.

How much does it cost?

freemiumFree tier: Core calculator and basic sensor dataPro tier: $3.99 one-time unlock for advanced planning tools and unlimited presets

The freemium model uses a one-time purchase to gate advanced technical planning tools while keeping core utility free to maximize the user base.

Velocity

Maintenance developmentopaqueShow more...

Depth of Field Calc has seen no development activity since its initial release 105 days ago. The app currently sits in a maintenance state, as the single version provided lacks any subsequent updates or feature iterations. There is no evidence of ongoing support or live operations, suggesting the project is currently inactive.

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Who built it?

彤 刘

1 app tracked · Utilities

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User Sentiment

What do users think recently?

How are ratings & reviews evolving?

App Store
0.00 · 0

Not enough recent reviews to extract reliable themes yet.

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Competition

Competitive landscape for Depth of Field Calc

How's the Utilities market?

Depth of Field Calc operates as a specialized technical utility, positioning itself through professional-grade visual feedback rather than broad-market reach. The lack of recent updates (106 days since last release) suggests a stable, maintenance-focused posture rather than an aggressive growth strategy.

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The rivals identified

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The Analyst's Read

Key takeaways for Depth of Field Calc

Where is it heading?

The technical utility market is consolidating around tools that offer both precision and frequent live-ops updates. Depth of Field Calc remains advantaged by its visual interface, but the lack of recent development activity leaves the app exposed to rivals that maintain a more active release schedule.

  • The 106-day gap since the last update signals a transition to maintenance mode, which reduces the app's visibility in competitive search results.
  • The high-utility free tier provides a strong foundation for organic discovery, which could support future growth if the development cadence resumes.

The SWOT

Core Strengths
  • Live clarity band visualization creates a defensible differentiation against standard text-based calculators
  • Strict millimeter unit discipline ensures professional-grade accuracy for technical photography
Critical Frictions 2 weaknesses inside
Growth Levers
  • Educational partnerships with photography schools could leverage the app's built-in plain-language explainers
Market Threats 1 threat identified

Next best moves

1 Invest

Ship a minor feature update because the app has been in maintenance mode for over three months → defend against active rivals

The counter-intuitive read

The app's maintenance-mode status is a feature, not a bug…

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Bottom line

Depth of Field Calc secures a niche by prioritizing visual feedback over raw data, but the current maintenance-mode cadence risks stagnation. A minor feature update would defend the tool's relevance against more active technical utilities.

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FAQ

Is Depth of Field Calc suitable for beginners?
Yes, the app includes built-in plain-language explainers for concepts like circle of confusion and diffraction, making it useful for students as well as professionals.
Does Depth of Field Calc require a subscription?
No, the app uses a one-time purchase model. The core calculator is free, while advanced tools like the focus-stacking planner require a single $3.99 unlock.
What makes Depth of Field Calc different from other calculators?
Unlike calculators that only display numbers, Depth of Field Calc features a live clarity band that visualizes depth-of-field scales in real time, similar to a physical lens barrel.

Sources

  1. [1] App Store, source

Report last updated

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Depth of Field Calc, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “Depth of Field Calc Intelligence Report.” Updated Sep 25, 2026. https://marlvel.ai/apps/depth-of-field-calc

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