Blackout Math.Power Calculator vs Earwake
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
Earwake
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Save reusable wake setups and challenge the actual name-and-phrase matcher against calls and near misses before choosing a profile. HOW IT WORKS 1. Open Profiles and capture your current Set Up or load the clearly labeled phrase example. 2. Add recognized-text trials with your expected trigger result. Run text rehearsal and compare results across sensitivity levels. 3. Save the rehearsed profile, export its report, or restore its complete setup. Restoring always leaves Earwake disarmed; review Set Up and arm it yourself. Name and phrase listening, sound triggers, wake styles, dismiss challenges and event history remain available. Profiles preserve their settings and add controlled disarmed restoration. WHAT TO KNOW Text rehearsal tests the matcher only. It does not test microphone input, speech recognition, ambient sound detection, volume, alarm delivery or waking reliability. Earwake needs to stay in the foreground to listen. Use a separate reliable alarm for critical wake times. Profiles do not schedule background operation. iPhone and iPad.
Screenshots
Verdict
The clearest difference is price: Blackout Math.Power Calculator at Free against Earwake's $0.99. Earwake's advantage is in-app purchases (none vs 1). On update cadence, ads, device support and iOS requirement 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
Blackout Math.Power Calculator is free to download; Earwake costs $0.99 up front. Blackout Math.Power Calculator sells 1 one-off in-app purchase. Earwake asks for nothing beyond the download.
Blackout Math.Power Calculator ships an update weekly, Earwake every 4 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.
| Parameter | Blackout Math.Power Calculator | Earwake |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 3.0 (5 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Weekly | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18 | 17.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Yevheniia Borunova | Robert Corbin |
In-app purchases
Blackout Math.Power Calculator
- Full Access$7.99
Earwake
No in-app purchases
Questions
Is Blackout Math.Power Calculator free?
Is Earwake free?
Do Blackout Math.Power Calculator or Earwake have ads?
Which is updated more often, Blackout Math.Power Calculator or Earwake?
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