# Light Meter vs Optaxis

Light Meter and Optaxis are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Light Meter sells 2 in-app purchases, starting at $7.99 per year and Optaxis sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

Light Meter ships an update weekly, Optaxis every 4 days. The most recent releases landed on September 23, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Light Meter | Optaxis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (5 ratings)](https://appshunter.io/ios/app/light-meter-filmbox/id6757200856/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 85.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 4 days** |
| Monetization | Freemium | — |
| Size | 33 MB | 123 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [卓 朱](https://appshunter.io/developer/1864726195) | [XIAO MIN NI](https://appshunter.io/developer/1887064548) |

## What reviewers say

### Light Meter

[App page](https://appshunter.io/ios/app/light-meter-filmbox/id6757200856)

This app helps film photographers precisely measure light, distance, and depth of field before taking a shot. It offers tools for exposure evaluation, flash calculation, and reciprocity failure compensation, with advanced features available via a one-time purchase.

**Highlights:** Light metering, Zone metering, Flash calculator, Reciprocity failure compensation, Distance meter (LiDAR), Depth of field calculator, Gear library

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FilmBox Toolkit Pro Subscription | $7.99 | per year |
| FilmBox Toolkit Pro | $17.99 | one-time |


### Optaxis

[App page](https://appshunter.io/ios/app/optaxis/id6760964267)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $5.99 | per month |
| Yearly | $49.99 | per year |


## Frequently asked questions

### Is Light Meter free?

Light Meter is free to download, with in-app purchases available.

### Is Optaxis free?

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

### Do Light Meter or Optaxis have ads?

Neither Light Meter nor Optaxis shows ads.

### Which is updated more often, Light Meter or Optaxis?

Light Meter ships an update weekly, and Optaxis every 4 days. Most recently, Light Meter was updated on September 23, 2026 and Optaxis on September 16, 2026.

---

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