# Blank Black Screen vs LDM Calculator

The clearest difference is iOS requirement: LDM Calculator at 13.0 against Blank Black Screen's 15.1. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Blank Black Screen sells 3 in-app purchases, starting at $0.99 per month and LDM Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Blank Black Screen | LDM Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (19 ratings)](https://appshunter.io/ios/app/blank-black-screen/id6736843475/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 2 MB | 63 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | +4 | 4+ |
| Developer | [Morten Punnerud](https://appshunter.io/developer/969844397) | [Fikri Yigit Bostanci](https://appshunter.io/developer/1858504498) |

## What reviewers say

### Blank Black Screen

[App page](https://appshunter.io/ios/app/blank-black-screen/id6736843475)

Enjoy videos without interruptions and save battery life. This app allows you to play videos and music with the screen locked, perfect for pocket use. Customize your viewing experience with a dimmable screen and adjustable clock.

**Highlights:** Distraction-free full-screen viewing, Power-saving screen dimming, Customizable clock display, Quick start and exit, Automatic settings memory, Picture-in-picture support

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Advanced features monthly | $0.99 | per month |
| Advanced features yearly | $2.99 | per year |
| One-time all advanced features | $5.99 | one-time |


### LDM Calculator

[App page](https://appshunter.io/ios/app/ldm-calculator/id6756099739)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Access | $3.99 | one-time |


## Frequently asked questions

### Is Blank Black Screen free?

Blank Black Screen is free to download, with in-app purchases available.

### Is LDM Calculator free?

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

### Do Blank Black Screen or LDM Calculator have ads?

Neither Blank Black Screen nor LDM Calculator 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.*