# Flashpoint R2 vs ND Filter Calc

The clearest difference is review sentiment: ND Filter Calc at 100% against Flashpoint R2's 17%. Flashpoint R2's advantage is iOS requirement (9.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Flashpoint R2 | ND Filter Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.4 (35 ratings)](https://appshunter.io/ios/app/flashpoint-r2/id1434289573/reviews)** | — |
| Number of ratings | **35** | — |
| Positive reviews | 16.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 6 days |
| Monetization | Free | Free |
| Size | 3 MB | 47 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Adorama inc.](https://appshunter.io/developer/510956701) | [Jerry Watson](https://appshunter.io/developer/1647846813) |

## What reviewers say

### Flashpoint R2

[App page](https://appshunter.io/ios/app/flashpoint-r2/id1434289573)

Control professional lighting systems wirelessly from your smartphone. Adjust exposure, modes, and settings for a wide range of compatible flash and LED products. This app enhances your camera's capabilities for advanced photographic control.

**Highlights:** Wireless TTL system control, Remote flash and LED management, Exposure and mode adjustment, Channel and group designation, Save and recall settings, Real-time parameter control

**Features:** macOS Compatibility

**In-app purchases:** none


### ND Filter Calc

[App page](https://appshunter.io/ios/app/nd-filter-calc/id6449380764)

This tool helps photographers calculate neutral density filter effects on their camera's exposure. It includes a countdown timer for long exposures, simplifying the process of achieving desired results.

**Highlights:** Neutral density filter calculation, Exposure compensation, Long exposure timer, Countdown for shutter speeds > 3 seconds, Simple interface

**In-app purchases:** none


## Frequently asked questions

### Is Flashpoint R2 free?

Flashpoint R2 is free to download, with no in-app purchases.

### Is ND Filter Calc free?

ND Filter Calc is free to download, with no in-app purchases.

### Do Flashpoint R2 or ND Filter Calc have ads?

Neither Flashpoint R2 nor ND Filter Calc shows ads.

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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.*