Comparison

Falconkey (developer keyboard) vs Blackout Math.Power Calculator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Falconkey (developer keyboard)

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
Read full description

Falcon Keyboard for iPhone, iPad and iPod touch is a integrated keyboard for you, replacing your device’s built-in keyboard with one that can easy typing capital,symbols in one screen with just touch or drag the letters. Falcon Keyboard is specially designed for program developers and do not needs to open “Allow Full Access” options that ensuring your information security. Support Email Address : falconkeyboard@hotmail.com

About

Blackout Math.Power Calculator

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
Read full description

Blackout Math Power Calculator for Real Blackouts When power is unstable, guessing becomes expensive. Wrong battery choices, unrealistic expectations, and incorrect calculations lead to wasted money and failed setups. Blackout Math is not a generic calculator. It is a practical decision-making tool designed for real power outages — helping you understand how long your power will actually last and which battery truly fits your needs. No ideal numbers. No marketing promises. Only realistic calculations for real conditions. Know how long your power will last Configure your battery type, capacity, and voltage — and Blackout Math will: • calculate usable energy in Wh and kWh • account for safe depth of discharge for each battery chemistry • factor in inverter efficiency and real losses • show realistic operating limits No overestimation. No dangerous assumptions. See the real impact of your devices Add any household appliances — lights, routers, laptops, refrigerators, boilers, heaters. Specify power, quantity, and usage time, and the app will instantly: • calculate real energy consumption • show each device’s impact on total load • determine actual runtime — not theoretical values You’ll know exactly when power runs out. Real charging time — not guesses Blackout Math considers battery chemistry and charging limits to provide: • accurate charging time estimates • warnings about unsafe charging currents • charging power based on voltage × amperage • state-of-charge calculations from any starting level No unrealistic “0 to 100%” promises. Complex energy concepts, explained clearly Blackout Math helps you understand: • why usable energy is always lower than nominal • what depth of discharge really means • how inverter efficiency affects runtime • how to choose batteries for real-world usage No engineering background required. Built for clarity and speed Clean inputs, instant calculations, intuitive sliders, and light & dark themes — designed for fast, stress-free decisions when time matters. Perfect for: • planning during blackouts • choosing portable power stations (EcoFlow, Bluetti, Anker) • estimating backup time for apartments and houses • selecting batteries for solar and backup systems • analyzing and optimizing home energy usage Blackout Math is built for real conditions. It helps you avoid costly mistakes and make confident decisions — even under pressure. Less guessing. More certainty. Better energy decisions.

Screenshots

Falconkey (developer keyboard)2 screens
Blackout Math.Power Calculator4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard7 real differences · 3 level
Falconkey (developer keyboard) versus Blackout Math.Power Calculator: the parameters behind the verdict, then further details
ParameterFalconkey (developer keyboard)Blackout Math.Power Calculator
Price$0.99Free — better
Rating2.4 (5 ratings)3.0 (5 ratings) — better
Positive reviews37.5% of reviews — better0.0% of reviews
Number of ratings55
Update frequencyEvery 48 monthsEvery 6 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better18
Further details — not scored
Size20 MB10 MB
Age rating4+4+
Developer葆霖 李Yevheniia Borunova

Customer experience

Falconkey (developer keyboard)

All ratings5 ratings
Positive40.0%
Neutral0.0%
Negative60.0%
Written reviews8 reviews
Positive37.5%
Neutral0.0%
Negative62.5%

Blackout Math.Power Calculator

All ratings3 ratings
Positive66.7%
Neutral33.3%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Falconkey (developer keyboard)

No in-app purchases

1 purchases

Blackout Math.Power Calculator

One-time1
  • Full Access$2.99

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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