# Focal Length Finder vs Zone Meter

The clearest difference is price: Zone Meter at Free against Focal Length Finder's $0.99. Zone Meter also leads on iOS requirement (16.0 vs 18.5). Focal Length Finder's advantage is update cadence (weekly vs every 2 months). On ads, in-app purchases and device support there is nothing between them.

Zone Meter is free to download; Focal Length Finder costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Focal Length Finder ships an update weekly, Zone Meter every 2 months. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Focal Length Finder | Zone Meter |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Size | 1 MB | 2 MB |
| Requires iOS | 18.5 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Raymond Pang](https://appshunter.io/developer/683597766) | [Greg Anderson](https://appshunter.io/developer/345127565) |

## What reviewers say

### Focal Length Finder

[App page](https://appshunter.io/ios/app/focal-length-finder/id6748239678)

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

**In-app purchases:** none


### Zone Meter

[App page](https://appshunter.io/ios/app/zone-meter/id6762099263)

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

**In-app purchases:** none


## Frequently asked questions

### Is Focal Length Finder free?

Focal Length Finder costs $0.99, with no in-app purchases.

### Is Zone Meter free?

Zone Meter is free to download, with no in-app purchases.

### Do Focal Length Finder or Zone Meter have ads?

Neither Focal Length Finder nor Zone Meter shows ads.

### Which is updated more often, Focal Length Finder or Zone Meter?

Focal Length Finder ships an update weekly, and Zone Meter every 2 months. Most recently, Focal Length Finder was updated on October 30, 2026 and Zone Meter on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*