# Stops+ vs Exposure Pro Calc

The clearest difference is iOS requirement: Exposure Pro Calc at 15.6 against Stops+'s 18.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Stops+ sells 5 in-app purchases, starting at $1.99 per month and Exposure Pro Calc sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Stops+ | Exposure Pro Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/stops-plus/id6538719303/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Monetization | Freemium | — |
| Size | 30 MB | 12 MB |
| Requires iOS | 18.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [Purpl Pro](https://appshunter.io/developer/1662309039) | [思名 周](https://appshunter.io/developer/1880077774) |

## What reviewers say

### Stops+

[App page](https://appshunter.io/ios/app/stops-plus/id6538719303)

This app precisely calculates exposure compensation for aperture, FPS, shutter speed, and ISO with fine increments. It helps artists and technologists avoid guesswork on set or in labs, offering features like DIFF Mode for instant attribute differences and filter compensation.

**Highlights:** Precise exposure compensation calculation, Adjustments in 1/32 stop increments, DIFF Mode for instant attribute differences, Lens filter compensation (up to 2 filters), Customizable parameter settings, ETTR/ETTL ISO calculation

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus | $1.99 | per month |
| Plus | $5.99 | per year |
| Lab Super Precision | $4.99 | one-time |
| Exposure Compensate | $4.99 | one-time |
| Plus Lifetime | $24.99 | one-time |


### Exposure Pro Calc

[App page](https://appshunter.io/ios/app/exposure-pro-calc/id6761047464)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Exposure Pro Premium | $6.99 | one-time |


## Frequently asked questions

### Is Stops+ free?

Stops+ is free to download, with in-app purchases available.

### Is Exposure Pro Calc free?

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

### Do Stops+ or Exposure Pro Calc have ads?

Neither Stops+ nor Exposure Pro 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.*