# Voltrelli vs ZKeys

The clearest difference is iOS requirement: Voltrelli at 15.1 against ZKeys's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Voltrelli ships an update every 10 days, ZKeys weekly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Voltrelli | ZKeys |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/zkeys/id6817199335/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 days | **Weekly** |
| Monetization | — | Free |
| Size | 87 MB | 15 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Smart Business & Technologies Solutions SRL](https://appshunter.io/developer/1650374230) | [Zoltan Homorodi](https://appshunter.io/developer/1583313543) |

## What reviewers say

### Voltrelli

[App page](https://appshunter.io/ios/app/voltrelli/id6443899578)

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

**In-app purchases:** none


### ZKeys

[App page](https://appshunter.io/ios/app/zkeys/id6817199335)

This keyboard app offers advanced autocorrect that understands finger placement and surrounding words to fix typos accurately. It supports multiple languages with dedicated word lists and allows for personalized typing experiences through swipe typing, custom shortcuts, and a learnable prediction engine.

**Highlights:** Advanced autocorrect based on finger placement, Support for four languages with dedicated word lists, Swipe typing and next-word predictions, Customizable shortcuts and symbol hints, Full-size iPad layout with dedicated keys, Voice dictation and voice memo transcription, Nine customizable themes and keyboard styles

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Voltrelli free?

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

### Is ZKeys free?

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

### Do Voltrelli or ZKeys have ads?

Neither Voltrelli nor ZKeys shows ads.

### Which is updated more often, Voltrelli or ZKeys?

Voltrelli ships an update every 10 days, and ZKeys weekly. Most recently, Voltrelli was updated on November 3, 2026 and ZKeys on October 31, 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.*