# Simple Invoice Pro creator vs VoltInvoice Electrician

The clearest difference is in-app purchases: Simple Invoice Pro creator at none against VoltInvoice Electrician's 2. Simple Invoice Pro creator also leads on update cadence (every 2 days vs every 3 months) and iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. VoltInvoice Electrician sells 2 in-app purchases, starting at $5.99 per month. Simple Invoice Pro creator asks for nothing beyond the download.

Simple Invoice Pro creator ships an update every 2 days, VoltInvoice Electrician every 3 months. The most recent releases landed on October 16, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Simple Invoice Pro creator | VoltInvoice Electrician |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/voltinvoice-electrician/id6760909567/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 months |
| Size | 34 MB | 108 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HAFIDA EL MAJDAOUI](https://appshunter.io/developer/1850159878) | [LibriApps](https://appshunter.io/developer/1879823356) |

## What reviewers say

### Simple Invoice Pro creator

[App page](https://appshunter.io/ios/app/simple-invoice-pro-creator/id6755318192)

**Features:** macOS Compatibility

**In-app purchases:** none


### VoltInvoice Electrician

[App page](https://appshunter.io/ios/app/voltinvoice-electrician/id6760909567)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly Subscription | $5.99 | per month |
| Pro Annual Subscription | $49.99 | per year |


## Frequently asked questions

### Is Simple Invoice Pro creator free?

Simple Invoice Pro creator is free to download, with no in-app purchases.

### Is VoltInvoice Electrician free?

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

### Do Simple Invoice Pro creator or VoltInvoice Electrician have ads?

Neither Simple Invoice Pro creator nor VoltInvoice Electrician shows ads.

### Which is updated more often, Simple Invoice Pro creator or VoltInvoice Electrician?

Simple Invoice Pro creator ships an update every 2 days, and VoltInvoice Electrician every 3 months. Most recently, Simple Invoice Pro creator was updated on October 16, 2026 and VoltInvoice Electrician on October 24, 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.*