# Shutter Sky vs ND Exposure Calculator

The clearest difference is price: Shutter Sky at Free against ND Exposure Calculator's $2.49. Shutter Sky also leads on update cadence (every 4 days vs every 3 weeks). ND Exposure Calculator's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.

Shutter Sky is free to download; ND Exposure Calculator costs $2.49 up front. Shutter Sky sells 2 in-app purchases, starting at $0.99 per month. ND Exposure Calculator asks for nothing beyond the download.

Shutter Sky ships an update every 4 days, ND Exposure Calculator every 3 weeks. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Shutter Sky | ND Exposure Calculator |
| --- | --- | --- |
| Price | **Free** | $2.49 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Size | 1 MB | 3 MB |
| Requires iOS | 18.2 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Chase Higgins](https://appshunter.io/developer/1788526218) | [Paran](https://appshunter.io/developer/1698510581) |

## What reviewers say

### Shutter Sky

[App page](https://appshunter.io/ios/app/shutter-sky/id6742646107)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Shutter Sky Monthly | $0.99 | per month |
| Shutter Sky Yearly | $9.99 | per year |


### ND Exposure Calculator

[App page](https://appshunter.io/ios/app/nd-exposure-calculator/id6784561741)

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

**In-app purchases:** none


## Frequently asked questions

### Is Shutter Sky free?

Shutter Sky is free to download, with in-app purchases available.

### Is ND Exposure Calculator free?

ND Exposure Calculator costs $2.49, with no in-app purchases.

### Do Shutter Sky or ND Exposure Calculator have ads?

Neither Shutter Sky nor ND Exposure Calculator shows ads.

### Which is updated more often, Shutter Sky or ND Exposure Calculator?

Shutter Sky ships an update every 4 days, and ND Exposure Calculator every 3 weeks. Most recently, Shutter Sky was updated on October 30, 2026 and ND Exposure Calculator on October 28, 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.*