# Blackout vs DumbLevel

The clearest difference is in-app purchases: DumbLevel at none against Blackout's 1. DumbLevel also leads on update cadence (every 4 days vs every 2 weeks). Blackout's advantage is device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

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

Blackout ships an update every 2 weeks, DumbLevel every 4 days. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Blackout | DumbLevel |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dumblevel/id6814969127/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | — | Paid |
| Size | 4 MB | 2 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mark Bullock](https://appshunter.io/developer/6784762149) | [kert shuster](https://appshunter.io/developer/6804107249) |

## What reviewers say

### Blackout

[App page](https://appshunter.io/ios/app/blackout-share-safely/id6810733572)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Blackout — Share Safely Pro | $19.99 | one-time |


### DumbLevel

[App page](https://appshunter.io/ios/app/dumblevel/id6814969127)

This utility app provides a precise bubble level for accurate picture and shelf hanging. It also includes a planner to help you lay out multiple items, calculate spacing, and mark positions on your wall.

**Highlights:** Precise bubble level with tenth-degree readings, Plumb and two-axis bubble modes, Audible level indicators, Hanging planner for pictures, shelves, and hooks, Calculates spacing and provides wall marks, Stores past projects for reference, User-calibratable sensors

**In-app purchases:** none


## Frequently asked questions

### Is Blackout free?

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

### Is DumbLevel free?

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

### Do Blackout or DumbLevel have ads?

Neither Blackout nor DumbLevel shows ads.

### Which is updated more often, Blackout or DumbLevel?

Blackout ships an update every 2 weeks, and DumbLevel every 4 days. Most recently, Blackout was updated on October 31, 2026 and DumbLevel on November 6, 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.*