# Btaro: Backup Power

> Btaro: Backup Power (iPhone/iPad app by Thomas Barton.)

- Source: https://appshunter.io/ios/app/btaro-backup-power/id6811079297 (this page in markdown: same URL + `.md`)
- Developer: [Thomas Barton](https://appshunter.io/developer/6806239955)
- Category: Utilities
- Price: Free
- Age rating: 17+
- Requires: iOS 16.0 · 12 MB
- Languages: American English
- Released: 2026-09-14
- Data updated: 2026-10-09
- User reviews in markdown: https://appshunter.io/ios/app/btaro-backup-power/id6811079297/reviews.md

## What is Btaro?

A convenient, 100% offline tool designed to help you estimate power consumption and select the right backup energy setup for any type of space—from compact apartments and private houses to offices and commercial properties.
This app helps you easily evaluate the total power drawn by your household appliances and electronics, determine your average daily usage, and account for maximum peak loads, including starting currents. Based on these estimates, you can quickly understand the approximate battery capacity and inverter power required for reliable off-grid living, as well as the panel output needed if you plan to integrate solar energy. It serves as an intuitive, practical guide that removes complex formulas and works completely offline, helping you plan a dependable backup power system for your home or business anytime, anywhere.


## Version history (last 3 releases)

### 1.2 — 2026-10-04

In this version we added and improved

• Critical loads only on the Day tab — one switch to simulate a blackout with just Critical appliances and see SoC / zero-hour under backup load.
• Bottleneck highlight on Objects and Match — a clear line when the weak spot is the inverter, battery, or solar (or when capacity looks balanced).
• Clearer Day guidance when nothing is marked Critical, so you know to flag Critical gear in Edit for a true blackout set.

### 1.1 — 2026-09-23

In this version

• Startup & outage planner on the Match tab — find the new card at the bottom of the screen.
• Safe switch-on order for your inverter class: what to power on first, when to wait, and what exceeds the peak rating.
• “Don’t start together” warnings when two appliances could overload the inverter if they surge at once.
• Outage presets — 4 hours, 12 hours, full day, and winter + heating — to set backup target hours and refresh battery sizing.

### 1.0 — 2026-09-14

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-09.*