Sabre vs Neutral Density Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sabre
Control a Wi-Fi enabled motion sensor and camera trigger remotely. Adjust settings like range, trigger mode, and number of shots. Also features Lidar functionality for distance measurement.
- Remote sensor control
- Adjust trigger modes
- Set number of shots
- Cross-beam functionality
- Bulb mode settings
- Lidar distance measurement
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What is Sabre? Sabre is a Wi-Fi enabled, weatherproof, multi-functional motion sensor and camera trigger. Please note: This is for the original BLUE Sabre. This app will not work with the new Sabre II. This app allows you to adjust all the settings for your Cognisys Sabre photography sensor, including: Range, trigger mode, sample rate, cross-beam functionality, bulb mode, number of shots, and much more. You've just finished setting up your Sabre high in a tree to capture your subject and realize you need to adjust the settings -- no worries! Connect to Sabre with your phone using this app and make any changes you need. No need to get back to the sensor for adjustments. It can all be done right on your phone (or tablet). You can also use this app (in conjunction with the Sabre hardware) to measure distance using its advanced Lidar functionality. This app requires the Cognisys Sabre hardware.
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: Sabre at 5.0 against Neutral Density Calculator's 3.4. Sabre also leads on update cadence (every 4 months vs every 48 months). Neutral Density Calculator's advantage is price ($1.99 vs $9.99) and iOS requirement (13 vs 15.6). On ratings volume, ads, in-app purchases and monetization model 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
Sabre costs $9.99 and Neutral Density Calculator $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Sabre holds the better App Store score, 5.0 against 3.4. Both are backed by a comparable volume of ratings — 2 and 5 respectively.
Sabre ships an update every 4 months, Neutral Density Calculator every 48 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.
| Parameter | Sabre | Neutral Density Calculator |
|---|---|---|
| Price | $9.99 | $1.99 — better |
| Rating | 5.0 (2 ratings) — better | 3.4 (5 ratings) |
| Positive reviews | — | 50.0% of reviews |
| Number of ratings | 2 | 5 — better |
| Update frequency | Every 4 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 | 15.6 | 13 — better |
| Further details — not scored | ||
| Size | 2 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Cognisys, Inc. | Nitrio |
Customer experience
Sabre
Neutral Density Calculator
In-app purchases
Sabre
No in-app purchases
Neutral Density Calculator
No in-app purchases
Questions
Is Sabre free?
Is Neutral Density Calculator free?
Which has better reviews, Sabre or Neutral Density Calculator?
Do Sabre or Neutral Density Calculator have ads?
Which is updated more often, Sabre or Neutral Density Calculator?
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