Comparison

Manual Exposure vs Neutral Density Calculator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Manual Exposure

This app provides essential calculators for landscape photographers to determine exposure settings. It includes tools for ND filters, handheld shots, multiple exposures, star photography, and nightscapes, with features like a built-in timer and equipment organization.

Highlights
  • 8 landscape photography calculators
  • Built-in timer and notifications
  • Home screen widget and Apple Watch app
  • Equipment and item info organization
  • Teleconverter support
  • Advanced filter and stabilization settings
  • Dark theme support
Features
Read full description

Manual Exposure does the math for long exposures and night photography. Choose your equipment and settings, and the app gives you the exposure time. No tables or cheat sheets. Calculators • ND filters: exposure time with one or more ND filters. • Handheld shutter speed: the slowest shutter speed you can use without blur. • Multiple exposures: exposure compensation for multiple-exposure shots. • Still stars: the longest exposure before stars start to trail. • Star trails: exposure and number of frames for the trail length you want. • Nightscapes: exposure for landscapes in moonlight. • Moon: exposure for photographing the Moon itself. Features • Built-in timer. Start the countdown and close the app: you'll get a notification when time is up. Run several timers at once. • Home Screen widget and Apple Watch app show the running timer. • Equipment sets. Add cameras, lenses, filters and teleconverters from the catalog, and switch sets in any calculator. • Specs for every item in your sets. • Save your favorite calculators and reopen them with one tap. • ND filter compensation and lens stabilization settings. • Light and dark mode, support for larger text sizes. Full version The ND filters calculator is free. One payment unlocks all calculators, the equipment catalog, the widget and the Apple Watch app. No subscription. Privacy No account, no ads, no tracking. Your equipment and saved calculators stay on your device. We collect usage statistics to improve the app; they are not linked to you, and we don't build profiles. Support Found a bug, have a suggestion, or can't find your gear? Contact us from Support in the app. Terms of Use: https://handsmade.info/manualexposure/terms.html

About

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.

Highlights
  • 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
Features
Read full description

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

Manual Exposure4 screens
Neutral Density Calculator4 screens

Verdict

The call

The clearest difference is price: Manual Exposure at Free against Neutral Density Calculator's $1.99. Manual Exposure also leads on update cadence (every 2 months vs every 48 months). Neutral Density Calculator's advantage is in-app purchases (none vs 3) and iOS requirement (13 vs 26.0). On review sentiment, ads 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

CostPrice · In-app purchases · Ads · Monetization

Manual Exposure is free to download; Neutral Density Calculator costs $1.99 up front. Manual Exposure sells 3 in-app purchases, starting at $0.99 per month. Neutral Density Calculator asks for nothing beyond the download.

UpkeepUpdate frequency

Manual Exposure ships an update every 2 months, Neutral Density Calculator every 48 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
Manual Exposure versus Neutral Density Calculator: the parameters behind the verdict, then further details
ParameterManual ExposureNeutral Density Calculator
PriceFree — better$1.99
Rating—3.4 (5 ratings) — better
Positive reviews42.3% of reviews50.0% of reviews — better
Number of ratings—5 — better
Update frequencyEvery 2 months — betterEvery 48 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, Apple WatchiPhone, iPad, iPod — better
Requires iOS26.013 — better
Further details — not scored
Size54 MB1 MB
Age rating4+4+
DeveloperGeorge KoultouridisNitrio

Customer experience

Manual Exposure

Written reviews26 reviews
Positive42.3%
Neutral15.4%
Negative42.3%

Neutral Density Calculator

All ratings5 ratings
Positive40.0%
Neutral40.0%
Negative20.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

3 purchases

Manual Exposure

Subscriptions2
  • monthly14 Days trial$0.991 Month
  • yearly1 Month trial$8.991 Year
One-time1
  • Full version$5.99
None

Neutral Density Calculator

No in-app purchases

Questions

Is Manual Exposure free?
Manual Exposure is free to download, with in-app purchases available.
Is Neutral Density Calculator free?
Neutral Density Calculator costs $1.99, with no in-app purchases.
Do Manual Exposure or Neutral Density Calculator have ads?
Neither Manual Exposure nor Neutral Density Calculator shows ads.
Which is updated more often, Manual Exposure or Neutral Density Calculator?
Manual Exposure ships an update every 2 months, and Neutral Density Calculator every 48 months. Most recently, Manual Exposure was updated on October 26, 2026 and Neutral Density Calculator on October 24, 2026.

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