# Predilux vs iPresta

The clearest difference is in-app purchases: iPresta at none against Predilux's 1. iPresta also leads on update cadence (monthly vs every 4 months). Predilux's advantage is iOS requirement (12.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Predilux sells 1 in-app purchase, starting at $14.99 per year. iPresta asks for nothing beyond the download.

Predilux ships an update every 4 months, iPresta monthly. The most recent releases landed on September 9, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Predilux | iPresta |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (2 ratings)](https://appshunter.io/ios/app/predilux/id1168322032/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | Subscription | — |
| Size | 69 MB | 31 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [WID LLC](https://appshunter.io/developer/522765968) | [Laurent Gleizes](https://appshunter.io/developer/598643605) |

## What reviewers say

### Predilux

[App page](https://appshunter.io/ios/app/predilux/id1168322032)

This app helps photographers and videographers predict light exposure based on light source and distance. It also allows inverse measurement of distance by specifying exposure, considering various camera and light source settings, and gels.

**Highlights:** Predict light exposure, Measure distance to light source, Adjust camera settings (FPS, ISO, Shutter), Configure light source settings, Apply gel effects (Diffusion, CTO/CTB, +- Green), Experimentally verified results

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Predilux | $14.99 | per year |


### iPresta

[App page](https://appshunter.io/ios/app/ipresta/id6745141675)

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

**In-app purchases:** none


## Frequently asked questions

### Is Predilux free?

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

### Is iPresta free?

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

### Do Predilux or iPresta have ads?

Neither Predilux nor iPresta shows ads.

### Which is updated more often, Predilux or iPresta?

Predilux ships an update every 4 months, and iPresta monthly. Most recently, Predilux was updated on September 9, 2026 and iPresta on September 13, 2026.

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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.*