# Zone System vs EV+

The clearest difference is price: EV+ at Free against Zone System's $1.99. EV+ also leads on iOS requirement (13.0 vs 17). Zone System's advantage is device support (4 vs 2) and ratings volume (3 vs 1). On rating, ads and in-app purchases there is nothing between them.

EV+ is free to download; Zone System costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Zone System against 5.0 for EV+. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

## The numbers

| Metric | Zone System | EV+ |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/zone-system/id6741873549/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/ev-plus/id6757970429/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 days | — |
| Monetization | Paid | **Free** |
| Size | 12 MB | 16 MB |
| Requires iOS | 17 | **13.0** |
| Devices | **iPhone, iPad, Apple Watch, Vision Pro** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Davin Nguyen](https://appshunter.io/developer/1680398335) | [Ben Nguyen](https://appshunter.io/developer/1778990954) |

## What reviewers say

### Zone System

[App page](https://appshunter.io/ios/app/zone-system/id6741873549)

This tool simplifies Ansel Adams' exposure and development method for photographers. It helps measure shadows and highlights, calculate aperture and development times, and preview results with film stock presets.

**Highlights:** Measure shadows and highlights, Aperture and development calculations, Preview results with film presets, ISO and EV calculations, Simplified Zone System application

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


### EV+

[App page](https://appshunter.io/ios/app/ev-plus/id6757970429)

A simple light meter for photographers to measure EV and calculate necessary camera settings like ISO, shutter speed, and aperture. It provides essential exposure information for better photography.

**Highlights:** Measure EV, Calculate ISO, Calculate Shutter Speed, Calculate Aperture, Minimalist interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Zone System free?

Zone System costs $1.99, with no in-app purchases.

### Is EV+ free?

EV+ is free to download, with no in-app purchases.

### Which has better reviews, Zone System or EV+?

Zone System and EV+ are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.

### Do Zone System or EV+ have ads?

Neither Zone System nor EV+ 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.*