# Sabre vs Neutral Density Calculator

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.

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.

## The numbers

| Metric | Sabre | Neutral Density Calculator |
| --- | --- | --- |
| Price | $9.99 | **$1.99** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/sabre-cognisys/id1055388139/reviews)** | [3.4 (5 ratings)](https://appshunter.io/ios/app/neutral-density-calculator/id1343590260/reviews) |
| Number of ratings | 2 | **5** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 48 months |
| Monetization | Paid | Paid |
| Size | 2 MB | 1 MB |
| Requires iOS | 15.6 | **13** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cognisys, Inc.](https://appshunter.io/developer/1055388138) | [Nitrio](https://appshunter.io/developer/321121189) |

## What reviewers say

### Sabre

[App page](https://appshunter.io/ios/app/sabre-cognisys/id1055388139)

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.

**Highlights:** Remote sensor control, Adjust trigger modes, Set number of shots, Cross-beam functionality, Bulb mode settings, Lidar distance measurement

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Neutral Density Calculator

[App page](https://appshunter.io/ios/app/neutral-density-calculator/id1343590260)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Sabre free?

Sabre costs $9.99, with no in-app purchases.

### Is Neutral Density Calculator free?

Neutral Density Calculator costs $1.99, with no in-app purchases.

### Which has better reviews, Sabre or Neutral Density Calculator?

Sabre is rated higher. Sabre averages 5.0 out of 5 from 2 ratings, while Neutral Density Calculator averages 3.4 from 5 ratings.

### Do Sabre or Neutral Density Calculator have ads?

Neither Sabre nor Neutral Density Calculator shows ads.

### Which is updated more often, Sabre or Neutral Density Calculator?

Sabre ships an update every 4 months, and Neutral Density Calculator every 48 months. Most recently, Sabre was updated on November 6, 2026 and Neutral Density Calculator on November 2, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*