Predilux vs Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Predilux
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.
- 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
Read full descriptionHide full description
Predilux lets you predict the exposure (key light) measured by a light meter, by choosing a light source and a distance. Or inversely measure the distance to the light source by specifying the exposure. Predilux takes into account camera settings (FPS, ISO, Shutter), source settings (Focalization, Lens, Grid, etc.) and gels (Diffusion, CTO/CTB, CTS, +- Green, and dozen of effects). All results have been experimentally verified with a light meter in rental shops. Predilux does not rely on constructor’s data. IMPORTANT NOTICE: Predilux is switching its pricing model to a monthly subscription. Starting Sept 1st 2023, Predilux will cost $14.99/year or $1.49/mo (cancel anytime). If you buy Predilux now, you will be eligible for 2 years free. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Pro
Read full descriptionHide full description
Display the battery level, voltage, and current through Bluetooth connection. Supports English, French, and German.
Screenshots
Verdict
The clearest difference is in-app purchases: Pro at none against Predilux's 1. Pro also leads on update cadence (fortnightly vs every 4 months). Predilux's advantage is iOS requirement (12.0 vs 14.6). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Predilux sells 1 in-app purchase, starting at $14.99 per year. Pro asks for nothing beyond the download.
Predilux ships an update every 4 months, Pro fortnightly. The most recent releases landed on September 9, 2026 and May 16, 2026 respectively.
| Parameter | Predilux | Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (2 ratings) — better | — |
| Positive reviews | 20.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 4 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 — better | 14.6 |
| Further details — not scored | ||
| Size | 69 MB | 1 MB |
| Age rating | 4+ | 17+ |
| Developer | WID LLC | Haidi Energy Technology Co.,Ltd. |
In-app purchases
Predilux
- Predilux$14.991 Year
Pro
No in-app purchases
