# PRI Dimmer vs Blue Light Filter

The clearest difference is rating: Blue Light Filter at 3.3 against PRI Dimmer's 2.3. Blue Light Filter also leads on ratings volume (137 vs 3). PRI Dimmer's advantage is in-app purchases (none vs 5) and iOS requirement (8.0 vs 17.0). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. Blue Light Filter sells 5 in-app purchases, starting at $4.99 per 7 days. PRI Dimmer asks for nothing beyond the download.

Blue Light Filter holds the better App Store score, 3.3 against 2.3. That said, the two scores are not equally well evidenced: Blue Light Filter has 137 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 0% of PRI Dimmer's written reviews are positive against 3% of Blue Light Filter's.

## The numbers

| Metric | PRI Dimmer | Blue Light Filter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (3 ratings)](https://appshunter.io/ios/app/pri-dimmer/id1130568547/reviews) | **[3.3 (137 ratings)](https://appshunter.io/ios/app/blue-light-filter/id6463748819/reviews)** |
| Number of ratings | 3 | **137** |
| Positive reviews | 0.0% of reviews | **2.6% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Weekly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 13 MB | 19 MB |
| Requires iOS | **8.0** | 17.0 |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, Mac |
| Age rating | 4+ | 17+ |
| Developer | [PRI](https://appshunter.io/developer/451673456) | [Rivia Corp s.r.o.](https://appshunter.io/developer/1698333588) |

## What reviewers say

### PRI Dimmer

[App page](https://appshunter.io/ios/app/pri-dimmer/id1130568547)

Control PRI-brand lighting dimmers from your iPhone and Apple Watch. Adjust on/off states and continuously variable brightness for compatible devices within range.

**Highlights:** Control PRI lighting dimmers, Adjust on/off state, Continuously adjustable brightness, iPhone compatibility, Apple Watch compatibility

**Features:** macOS Compatibility

**In-app purchases:** none


### Blue Light Filter

[App page](https://appshunter.io/ios/app/blue-light-filter/id6463748819)

Reduce eye strain and improve sleep with an adjustable blue light filter. Organize your files, photos, and videos with an integrated file manager. Enjoy a seamless web browsing experience with built-in filtering and bookmarking.

**Highlights:** Adjustable blue light filter, Eye strain relief, Improved sleep quality, Intuitive file manager, Zip/unzip support, Integrated web browser

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| 1 month | $6.99 | per month |
| Blue Light Filter - Monthly | $7.99 | per month |
| 1 year | $24.99 | per year |
| Annually | $29.99 | per year |

**What reviewers complain about**

- 💸 Expensive subscription model
- 🚫 Blue light filter limited to app
- ⚠️ Difficult subscription cancellation
- 😠 App not free as expected
- ❌ Poor user interface

**Reported bugs**

- App doesn't open
- App keeps crashing
- App doesn't work on Mac
- Blank 'Trial Page' window
- Free cancellation not working

**Requested features**

- Automatically turn on at login
- Toggle on/off with shortcut key
- Apply blue light filter to entire phone
- More customization options


## Frequently asked questions

### Is PRI Dimmer free?

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

### Is Blue Light Filter free?

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

### Which has better reviews, PRI Dimmer or Blue Light Filter?

Blue Light Filter is rated higher. PRI Dimmer averages 2.3 out of 5 from 3 ratings, while Blue Light Filter averages 3.3 from 137 ratings.

### Do PRI Dimmer or Blue Light Filter have ads?

Neither PRI Dimmer nor Blue Light Filter shows ads.

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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.*