# SlowLightMeter vs Orriva

The clearest difference is in-app purchases: SlowLightMeter at none against Orriva's 1. SlowLightMeter also leads on update cadence (every 5 days vs monthly) and ratings volume (6 vs 2). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Orriva sells 1 one-off in-app purchase. SlowLightMeter asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for SlowLightMeter against 5.0 for Orriva. Both are backed by a comparable volume of ratings — 6 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

SlowLightMeter ships an update every 5 days, Orriva monthly. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | SlowLightMeter | Orriva |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (6 ratings)](https://appshunter.io/ios/app/slowlightmeter/id6751812869/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/orriva/id6785217144/reviews) |
| Number of ratings | **6** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Monthly |
| Monetization | **Free** | Freemium |
| Size | 2 MB | 20 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ari Jaaksi](https://appshunter.io/developer/1770069317) | [Jiri Kluciar](https://appshunter.io/developer/1896177262) |

## What reviewers say

### SlowLightMeter

[App page](https://appshunter.io/ios/app/slowlightmeter/id6751812869)

This app provides a simple and accurate light meter for film photographers. It continuously measures light with minimal interaction and includes an ISO lock to prevent accidental changes. EV values are a core feature for ease of use.

**Highlights:** Reflective and incident light metering, Continuous light measurement, ISO lock, EV value display, Simple interface

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

**In-app purchases:** none


### Orriva

[App page](https://appshunter.io/ios/app/orriva/id6785217144)

This app helps photographers manage their photos by identifying the best shots from bursts, planning lighting conditions, and editing RAW files. It offers a suite of tools for image enhancement and organization, all while operating completely offline.

**Highlights:** Keeper finder for burst photos, Light planning with sunrise/sunset times, Exposure and distance calculators, RAW photo developing, Manual camera controls, Batch resizing and watermarking, Offline operation

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Orriva Pro | $1.99 | one-time |


## Frequently asked questions

### Is SlowLightMeter free?

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

### Is Orriva free?

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

### Which has better reviews, SlowLightMeter or Orriva?

SlowLightMeter and Orriva are both rated 5.0 out of 5 on the App Store, from 6 and 2 ratings respectively.

### Do SlowLightMeter or Orriva have ads?

Neither SlowLightMeter nor Orriva shows ads.

### Which is updated more often, SlowLightMeter or Orriva?

SlowLightMeter ships an update every 5 days, and Orriva monthly. Most recently, SlowLightMeter was updated on November 2, 2026 and Orriva on October 31, 2026.

---

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