# Brownout vs Ladder Angle Calculator

The clearest difference is in-app purchases: Brownout at none against Ladder Angle Calculator's 3. Ladder Angle Calculator's advantage is iOS requirement (17.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Ladder Angle Calculator sells 3 in-app purchases, starting at $4.99 per 7 days. Brownout asks for nothing beyond the download.

Brownout ships an update every 3 weeks, Ladder Angle Calculator every 4 weeks. The most recent releases landed on October 23, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Brownout | Ladder Angle Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 weeks |
| Monetization | Free | — |
| Size | 1 MB | 11 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Bitz](https://appshunter.io/developer/434213281) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## What reviewers say

### Brownout

[App page](https://appshunter.io/ios/app/brownout/id443661505)

Easily check Japan's electricity demand forecast across 10 regions. View actual demand, forecasts, and supply capacity with clear daily line charts. Stay informed about the power situation from Hokkaido to Okinawa.

**Highlights:** Electricity demand forecasts for 10 Japanese regions, Actual demand, forecast, and supply capacity charts, Real-time usage rate display, Easy region switching, Data from regional power companies

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

**In-app purchases:** none


### Ladder Angle Calculator

[App page](https://appshunter.io/ios/app/ladder-angle-calculator/id6772270431)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Yearly | $24.99 | per year |
| Lifetime Pro | $49.99 | one-time |


## Frequently asked questions

### Is Brownout free?

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

### Is Ladder Angle Calculator free?

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

### Do Brownout or Ladder Angle Calculator have ads?

Neither Brownout nor Ladder Angle Calculator shows ads.

### Which is updated more often, Brownout or Ladder Angle Calculator?

Brownout ships an update every 3 weeks, and Ladder Angle Calculator every 4 weeks. Most recently, Brownout was updated on October 23, 2026 and Ladder Angle Calculator on October 8, 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.*