# Manual Exposure vs ND Filter Calc

The clearest difference is review sentiment: ND Filter Calc at 100% against Manual Exposure's 42%. ND Filter Calc also leads on in-app purchases (none vs 3) and update cadence (every 6 days vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Manual Exposure sells 3 in-app purchases, starting at $0.99 per month. ND Filter Calc asks for nothing beyond the download.

Manual Exposure ships an update every 2 months, ND Filter Calc every 6 days. The most recent releases landed on October 26, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Manual Exposure | ND Filter Calc |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 42.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 54 MB | 47 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [George Koultouridis](https://appshunter.io/developer/1258081441) | [Jerry Watson](https://appshunter.io/developer/1647846813) |

## What reviewers say

### Manual Exposure

[App page](https://appshunter.io/ios/app/manual-exposure/id697932594)

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:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| monthly | $0.99 | per month |
| yearly | $8.99 | per year |
| Full version | $5.99 | one-time |


### 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 Manual Exposure free?

Manual Exposure is free to download, with in-app purchases available.

### Is ND Filter Calc free?

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

### Do Manual Exposure or ND Filter Calc have ads?

Neither Manual Exposure nor ND Filter Calc shows ads.

### Which is updated more often, Manual Exposure or ND Filter Calc?

Manual Exposure ships an update every 2 months, and ND Filter Calc every 6 days. Most recently, Manual Exposure was updated on October 26, 2026 and ND Filter Calc on September 30, 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.*