# Falconkey (developer keyboard) vs Blackout Math.Power Calculator

The clearest difference is price: Blackout Math.Power Calculator at Free against Falconkey (developer keyboard)'s $0.99. Blackout Math.Power Calculator also leads on rating (3.0 vs 2.4) and update cadence (every 6 days vs every 48 months). Falconkey (developer keyboard)'s advantage is review sentiment (38% vs 0%) and in-app purchases (none vs 1). On ratings volume, ads and device support there is nothing between them.

Blackout Math.Power Calculator is free to download; Falconkey (developer keyboard) costs $0.99 up front. Blackout Math.Power Calculator sells 1 one-off in-app purchase. Falconkey (developer keyboard) asks for nothing beyond the download.

Blackout Math.Power Calculator holds the better App Store score, 3.0 against 2.4. Both are backed by a comparable volume of ratings — 5 and 5 respectively. Written reviews complicate that: 38% of Falconkey (developer keyboard)'s written reviews are positive against 0% of Blackout Math.Power Calculator's, so the app with the better star average is not the one people write more warmly about.

Falconkey (developer keyboard) ships an update every 48 months, Blackout Math.Power Calculator every 6 days. The most recent releases landed on September 20, 2026 and June 7, 2026 respectively.

## The numbers

| Metric | Falconkey (developer keyboard) | Blackout Math.Power Calculator |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [2.4 (5 ratings)](https://appshunter.io/ios/app/falconkey-developer-keyboard/id1330503310/reviews) | **[3.0 (5 ratings)](https://appshunter.io/ios/app/blackout-mathpower-calculator/id6755345214/reviews)** |
| Number of ratings | 5 | 5 |
| Positive reviews | **37.5% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 48 months | **Every 6 days** |
| Monetization | Paid | **Free** |
| Size | 20 MB | 10 MB |
| Requires iOS | **13.0** | 18 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [葆霖 李](https://appshunter.io/developer/1896617402) | [Yevheniia Borunova](https://appshunter.io/developer/1684316852) |

## What reviewers say

### Falconkey (developer keyboard)

[App page](https://appshunter.io/ios/app/falconkey-developer-keyboard/id1330503310)

This keyboard app offers enhanced typing capabilities for developers, allowing for quick access to capital letters and symbols on a single screen. It prioritizes user information security by not requiring full access permissions.

**Highlights:** Integrated keyboard replacement, Easy capital and symbol typing, Single screen access, Touch and drag input, No 'Allow Full Access' required, Enhanced information security

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

**In-app purchases:** none


### Blackout Math.Power Calculator

[App page](https://appshunter.io/ios/app/blackout-mathpower-calculator/id6755345214)

This app helps you accurately calculate power outage durations and battery performance. It factors in real-world conditions like battery discharge, inverter efficiency, and device consumption to provide realistic estimates for runtime and charging.

**Highlights:** Calculate usable battery energy (Wh/kWh), Factor in safe depth of discharge, Account for inverter efficiency and losses, Calculate real device energy consumption, Estimate actual device runtime, Provide accurate battery charging time estimates, Explain complex energy concepts clearly

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access | $2.99 | one-time |


## Frequently asked questions

### Is Falconkey (developer keyboard) free?

Falconkey (developer keyboard) costs $0.99, with no in-app purchases.

### Is Blackout Math.Power Calculator free?

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

### Which has better reviews, Falconkey (developer keyboard) or Blackout Math.Power Calculator?

Blackout Math.Power Calculator is rated higher. Falconkey (developer keyboard) averages 2.4 out of 5 from 5 ratings, while Blackout Math.Power Calculator averages 3.0 from 5 ratings.

### Do Falconkey (developer keyboard) or Blackout Math.Power Calculator have ads?

Neither Falconkey (developer keyboard) nor Blackout Math.Power Calculator shows ads.

### Which is updated more often, Falconkey (developer keyboard) or Blackout Math.Power Calculator?

Falconkey (developer keyboard) ships an update every 48 months, and Blackout Math.Power Calculator every 6 days. Most recently, Falconkey (developer keyboard) was updated on September 20, 2026 and Blackout Math.Power Calculator on June 7, 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.*