Saved me during a storm
We lost power last week and using this app helped us budget our fuel perfectly. I knew down to the minute when I needed to go back out and refill the tank. Incredibly easy to use even if you aren't a tech expert.
Free
In-App Purchases
About
This app provides real-time fuel tracking, load monitoring, and time-sensitive alerts for generators. It calculates remaining runtime based on fuel level, electrical load, and environmental factors, offering a precise countdown for refueling or recharging.
✓Real-time fuel countdown
✓Extensive generator library
✓Smart home integration
✓Appliance load budgeting
✓Environmental physics corrections
✓Live Activities & Dynamic Island support
✓Maintenance logging
Show original description
What's New in GenDash
2.4.1
August 24, 2026
- Fractional Hour Tracking: Enter generator hours with one decimal place for more accurate maintenance scheduling. - Runtime & Cost Estimates: Estimate remaining runtime and hourly operating cost using current fuel level, load, and customizable fuel pricing.
More1
In-App Purchases
$4.99
GenDash Lifetime Unlock
Unlocks all telemetry and automation forever.
User reviews
FAQ
What is GenDash?
GenDash is a smart generator monitor that provides real-time fuel tracking, load monitoring, and time-sensitive alerts. It helps you answer how much time you have left before needing to refuel or recharge your generator.
How accurate is GenDash's fuel countdown?
GenDash dynamically calculates your exact burn rate by combining fuel level, real-time electrical load, and environmental physics. It continuously updates the Time-to-Empty countdown for high accuracy.
Does GenDash support different types of generators?
Yes, GenDash features a massive generator library with over 100 pre-configured profiles for standby units, portable inverters, and battery power stations. You can also enter custom specifications for unique units.
Can GenDash integrate with smart home systems?
GenDash connects natively to Home Assistant, reading live electrical load from panel monitors and smart plugs. This allows it to automatically adjust your fuel countdown as your power usage changes.
What kind of alerts does GenDash offer?
GenDash provides time-sensitive alerts for refueling, such as 30 or 60 minutes before running dry. It can also detect unexpected engine stalls and alert you instantly, ensuring urgent updates bypass focus modes.
Is GenDash available on multiple devices?
GenDash is designed for iPhone and iPad users. Its features, including the Time-to-Empty countdown and gauges, are accessible on your iPhone's Lock Screen and in the Dynamic Island.
How often is GenDash updated?
The latest version of GenDash is 2.1.2, which was last updated on June 23, 2026. Updates typically include new features, bug fixes, and performance improvements.
What is the age rating for GenDash?
GenDash has an age rating of 4+, making it suitable for a wide range of users. The app is designed to be private and offline-first, requiring no account for use.