# Electric PRO vs bookiboo

The clearest difference is in-app purchases: Electric PRO at none against bookiboo's 1. Electric PRO also leads on device support (4 vs 2) and iOS requirement (12.0 vs 17.0). On price, update cadence and ads there is nothing between them.

Both are free to download. bookiboo sells 1 one-off in-app purchase. Electric PRO asks for nothing beyond the download.

Electric PRO ships an update every 5 months, bookiboo every 4 months. The most recent releases landed on October 24, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Electric PRO | bookiboo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (5 ratings)](https://appshunter.io/ios/app/electric-pro/id1014995444/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 months** |
| Monetization | Paid | — |
| Size | 12 MB | 2 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nic Kolbe](https://appshunter.io/developer/512550641) | [Dominik Kolb](https://appshunter.io/developer/1527901253) |

## What reviewers say

### Electric PRO

[App page](https://appshunter.io/ios/app/electric-pro/id1014995444)

This utility app offers quick and accurate conversions for various electrical units. It provides insights into additional electrical calculations and allows for adjustable number formats for user convenience. Simplify complex electrical computations with this tool.

**Highlights:** Electrical unit conversion, Ampere, Volt, Watt, Ohm, Siemens, Joule, Second conversion, Additional electrical calculation insights, Adjustable number formats, Simplifies complex calculations

**Features:** Vision Pro support

**In-app purchases:** none


### bookiboo

[App page](https://appshunter.io/ios/app/bookiboo/id6738869531)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| bookiboo Pro | $3.99 | one-time |


## Frequently asked questions

### Is Electric PRO free?

Electric PRO is free to download, with no in-app purchases.

### Is bookiboo free?

bookiboo is free to download, with in-app purchases available.

### Do Electric PRO or bookiboo have ads?

Neither Electric PRO nor bookiboo shows ads.

### Which is updated more often, Electric PRO or bookiboo?

Electric PRO ships an update every 5 months, and bookiboo every 4 months. Most recently, Electric PRO was updated on October 24, 2026 and bookiboo on October 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*