# Viskey vs SN AquaSmart

The clearest difference is in-app purchases: SN AquaSmart at none against Viskey's 1. SN AquaSmart also leads on iOS requirement (13.0 vs 26.0). Viskey's advantage is update cadence (every 3 weeks vs every 8 months). On price, ads and device support there is nothing between them.

Both are free to download. Viskey sells 1 one-off in-app purchase. SN AquaSmart asks for nothing beyond the download.

Viskey ships an update every 3 weeks, SN AquaSmart every 8 months. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Viskey | SN AquaSmart |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 8 months |
| Monetization | Free with in-app purchases | — |
| Size | 326 MB | 202 MB |
| Requires iOS | 26.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [MPaja](https://appshunter.io/developer/437207891) | [ZHEJIANG SHENNENG TECHNOLOGY CO., LTD.](https://appshunter.io/developer/1765474023) |

## What reviewers say

### Viskey

[App page](https://appshunter.io/ios/app/viskey/id998451252)

This keyboard app offers a large text preview and adjustable font sizes, making it easier to read and type without reading glasses. It includes features like spell check, auto-correction, and cursor keys for precise text editing.

**Highlights:** Large text preview, Adjustable font sizes, Cursor keys for text editing, Spell check and auto-correction, System shortcuts, Multiple language layouts, Optional audio feedback

**Features:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Viskey One Year Subscription | $2.99 | one-time |


### SN AquaSmart

[App page](https://appshunter.io/ios/app/sn-aquasmart/id6670241015)

**In-app purchases:** none


## Frequently asked questions

### Is Viskey free?

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

### Is SN AquaSmart free?

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

### Do Viskey or SN AquaSmart have ads?

Neither Viskey nor SN AquaSmart shows ads.

### Which is updated more often, Viskey or SN AquaSmart?

Viskey ships an update every 3 weeks, and SN AquaSmart every 8 months. Most recently, Viskey was updated on October 24, 2026 and SN AquaSmart on October 16, 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.*