# iokey vs Smart Printer App

The clearest difference is in-app purchases: iokey at none against Smart Printer App's 4. Smart Printer App's advantage is update cadence (every 6 weeks vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Smart Printer App sells 4 in-app purchases, starting at $5.99 per 7 days. iokey asks for nothing beyond the download.

iokey ships an update every 4 months, Smart Printer App every 6 weeks. The most recent releases landed on September 24, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | iokey | Smart Printer App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Size | 14 MB | 12 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Dambee Technology Co., Ltd.](https://appshunter.io/developer/1470217773) | [ELGO LEARNING LIMITED](https://appshunter.io/developer/1806041101) |

## What reviewers say

### iokey

[App page](https://appshunter.io/ios/app/iokey/id1502213625)

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

**In-app purchases:** none


### Smart Printer App

[App page](https://appshunter.io/ios/app/smart-printer-app-pdf-scan/id6756779500)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Smart Printer & Scanner App | $5.99 | per 7 days |
| Smart Printer & Scanner App | $12.99 | per month |
| Smart Printer & Scanner App | $39.99 | per year |
| Smart Printer & Scanner App | $49.99 | one-time |


## Frequently asked questions

### Is iokey free?

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

### Is Smart Printer App free?

Smart Printer App is free to download, with in-app purchases available.

### Do iokey or Smart Printer App have ads?

Neither iokey nor Smart Printer App shows ads.

### Which is updated more often, iokey or Smart Printer App?

iokey ships an update every 4 months, and Smart Printer App every 6 weeks. Most recently, iokey was updated on September 24, 2026 and Smart Printer App on September 18, 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.*