# Electrical Engineering Toolkit vs Docio

The clearest difference is in-app purchases: Docio at none against Electrical Engineering Toolkit's 3. Docio also leads on update cadence (every 4 days vs every 9 months). Electrical Engineering Toolkit's advantage is ads (none vs shown) and iOS requirement (16.2 vs 18.0). On price and device support there is nothing between them.

Both are free to download. Electrical Engineering Toolkit sells 3 in-app purchases, starting at $0.99 per month. Docio asks for nothing beyond the download.

Electrical Engineering Toolkit ships an update every 9 months, Docio every 4 days. Both last shipped on October 12, 2026.

## The numbers

| Metric | Electrical Engineering Toolkit | Docio |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Every 4 days** |
| Size | 12 MB | 13 MB |
| Requires iOS | **16.2** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Vladislav Zhirnov](https://appshunter.io/developer/1476188065) | [SSoftTeam OU](https://appshunter.io/developer/1694935296) |

## What reviewers say

### Electrical Engineering Toolkit

[App page](https://appshunter.io/ios/app/electrical-engineering-toolkit/id6474202026)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version / monthly | $0.99 | per month |
| Full version / year | $3.99 | per year |
| Support project, remove ADS | $5.99 | one-time |


### Docio

[App page](https://appshunter.io/ios/app/docio-scan-edit-and-sign-pdf/id6805019792)

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

**In-app purchases:** none


## Frequently asked questions

### Is Electrical Engineering Toolkit free?

Electrical Engineering Toolkit is free to download, with in-app purchases available.

### Is Docio free?

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

### Do Electrical Engineering Toolkit or Docio have ads?

Docio shows ads; Electrical Engineering Toolkit does not.

### Which is updated more often, Electrical Engineering Toolkit or Docio?

Electrical Engineering Toolkit ships an update every 9 months, and Docio every 4 days. Most recently, Electrical Engineering Toolkit was updated on October 12, 2026 and Docio on October 12, 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.*