Hyperfocal DOF vs Neutral Density Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Hyperfocal DOF
Easily calculate hyperfocal distance for photography. Select your camera model, focal length, and aperture to determine the optimal focus point for sharp images from near to infinity.
- Hyperfocal distance calculation
- Supports over 4000 camera models
- User-friendly interface
- Focal length and aperture input
- Infinity focus sharpness
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Get your hyperfocal distance in an easy way! More than 4000 camera models! The hyperfocal distance is the closest distance at which a lens can be focused while keeping objects at infinity acceptably sharp. When the lens is focused at this distance, all objects at distances from half of the hyperfocal distance out to infinity will be acceptably sharp. With this app, you can calculate hyperfocal distance in an easy way. Just pick your camera model from the list, set your focal length and aperture used, and click on "Calculate Hyperfocal". That's all!
Neutral Density Calculator
This utility app assists photographers in determining the correct shutter speed when using neutral density filters. Input your filter's stops and base shutter speed to instantly get the adjusted exposure time, with an optional countdown timer for long exposures.
- ND filter stop input
- Base shutter speed input
- Calculated shutter speed output
- Countdown timer for long exposures
- Screen dimming during timer
- Sound notification for timer completion
- Supports up to 20-stop ND filters
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Neutral Density Calculator for photographers to calculate the shutter speed when adding neutral density filters to your lens. Set the filter you are using and the shutter speed without the filter and the app calculates the new shutter speed with your filter fitted. This is a utility app that helps you determine the correct exposure time/shutter speed when using Neutral Density Filters. Instantly it tells you exactly how long to leave your shutter open, and it even has a built-in timer countdown clock. Features: - User friendly UI - Includes a countdown timer if exposure time is more than 60 seconds (bulb) - Option to dim the screen while countdown - Option to enable disable sound once timer reach - Neutral density or Optical density unit selection - Supports up to 20-stops of ND filter - Base Shutter speed from 1/8000 - 60 sec - Show Fractional transmittance data with selected ND filter Steps: 1 - How many stops your ND filter is (like a 3-stop, 4-stop, 10-stop, etc.) 2 - Base shutter speed - What your current shutter speed is (before you put your ND filter on your lens) 3 - Final time are calculate base on your input, you can press the start button sync with DSLR/DSLM camera shutter at the same time. And the timer will remind you once timer reach to release your DSLR/DSLM camera shutter. Thanks for your support and do visit nitrio.com for more apps for your iOS devices.
Screenshots
Verdict
The clearest difference is rating: Neutral Density Calculator at 3.4 against Hyperfocal DOF's 1.0. Neutral Density Calculator also leads on review sentiment (50% vs 19%) and ratings volume (5 vs 1). Hyperfocal DOF's advantage is update cadence (every 6 months vs every 48 months) and price ($0.99 vs $1.99). On ads, in-app purchases, monetization model and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Hyperfocal DOF costs $0.99 and Neutral Density Calculator $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Neutral Density Calculator holds the better App Store score, 3.4 against 1.0. That said, the two scores are not equally well evidenced: Neutral Density Calculator has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 19% of Hyperfocal DOF's written reviews are positive against 50% of Neutral Density Calculator's.
Hyperfocal DOF ships an update every 6 months, Neutral Density Calculator every 48 months. The most recent releases landed on October 16, 2026 and October 24, 2026 respectively.
| Parameter | Hyperfocal DOF | Neutral Density Calculator |
|---|---|---|
| Price | $0.99 — better | $1.99 |
| Rating | 1.0 (1 ratings) | 3.4 (5 ratings) — better |
| Positive reviews | 19.0% of reviews | 50.0% of reviews — better |
| Number of ratings | 1 | 5 — better |
| Update frequency | Every 6 months — better | Every 48 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 13 |
| Further details — not scored | ||
| Size | 18 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Javier Cancio Del Busto | Nitrio |
Customer experience
Hyperfocal DOF
Neutral Density Calculator
In-app purchases
Hyperfocal DOF
No in-app purchases
Neutral Density Calculator
No in-app purchases
Questions
Is Hyperfocal DOF free?
Is Neutral Density Calculator free?
Which has better reviews, Hyperfocal DOF or Neutral Density Calculator?
Do Hyperfocal DOF or Neutral Density Calculator have ads?
Which is updated more often, Hyperfocal DOF or Neutral Density Calculator?
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