| What it does | Free browser-based financial calculators for planning, savings, loans and investing
| Free power station runtime calculator for portable battery systems
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Free
| Free
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| Pricing | Not given
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| Key features | - 30 financial calculators covering interest, savings, loans, debt and investing
- Runs entirely in browser with no data sent to servers
- No sign-up or tracking required
- Shows formulas and assumptions for every calculation
- Custom interest rates, returns, and inflation rates
- Multiple currency formats supported
- Real-time result updates as values change
| - Runtime calculator for 52 power station models across 6 brands
- Device power consumption presets with 20+ common appliances
- Transparent assumptions with every specification linked to source
- Cautious, typical and optimistic runtime range estimates
- Output compatibility checking against power station ratings
- Solar recharge duration calculator
- Power station comparison tool
- Capacity calculator for determining required battery size
- Scenario planners for CPAP overnight and home outage situations
- Free embeddable widgets for blogs and review sites
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| What makes it different | - Private by design - all calculations stay on your device
- No sign-up required to use any calculator
- Instant calculations as you adjust your inputs
| - Every specification sourced directly from manufacturer pages and manuals, not retailer listings or forums
- All formulas and assumptions transparently shown with labeled defaults and sources
- Independent verification requiring specs confirmed from manuals rather than marketing copy
- Continuously updated specs checked between 180-day intervals with automated verification scripts
- No guesswork; empty fields stay empty when manufacturers do not publish data
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 34 ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 11 | 5 |
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| Citation Flow (Majestic) | 24 | 17 |
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| Referring domains (Majestic) | 123 | 4 |
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