# VoidX vs Smart Keys

The clearest difference is in-app purchases: VoidX at none against Smart Keys's 10. VoidX also leads on ads (none vs shown) and rating (5.0 vs 4.6). Smart Keys's advantage is ratings volume (536 vs 2). On price, update cadence and device support there is nothing between them.

Both are free to download. Smart Keys sells 10 in-app purchases, starting at $4.99 per 7 days. VoidX asks for nothing beyond the download.

VoidX holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Smart Keys has 536 ratings behind it against 2, so its average is the more settled of the two.

VoidX ships an update monthly, Smart Keys every 2 weeks. The most recent releases landed on October 3, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | VoidX | Smart Keys |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/voidx-control/id6478050949/reviews)** | [4.6 (536 ratings)](https://appshunter.io/ios/app/smart-keys-writing-tools/id6602882160/reviews) |
| Number of ratings | 2 | **536** |
| Positive reviews | — | 43.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 34 MB | 39 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, Mac |
| Age rating | 4+ | 9+ |
| Developer | [VoidX-DevTeam](https://appshunter.io/developer/1731534641) | [Fireflow Creative Collective LLC](https://appshunter.io/developer/1755305724) |

## What reviewers say

### VoidX

[App page](https://appshunter.io/ios/app/voidx-control/id6478050949)

Easily manage and connect to your VoidX devices. Mark frequently used devices as favorites for quick access. This app offers an intuitive interface for effortless control, ideal for both users and product designers.

**Highlights:** Discover nearby VoidX devices, Connect via Bluetooth, Wi-Fi, or USB, Mark devices as Favorites, Intuitive user interface, Customizable interface for brands, Seamless integration for connected products

**Features:** Vision Pro support

**In-app purchases:** none


### Smart Keys

[App page](https://appshunter.io/ios/app/smart-keys-writing-tools/id6602882160)

This AI-powered keyboard enhances your writing by offering instant translation, grammar correction, and smart reply suggestions. It also features text generation from images, custom AI key creation, and text-to-speech capabilities, making communication effortless across languages and platforms.

**Highlights:** On-the-fly translation, Smart reply suggestions, Image-based text generation, Custom generative AI keys, Real-time proofreading, Tone customization, Text-to-speech

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Smart Keys Pro | $4.99 | per 7 days |
| Smart Keys Pro Desktop | $4.99 | per 7 days |
| Smart Keys Voice | $4.99 | per 7 days |
| Smart Keys Pro | $12.49 | per month |
| Smart Keys Pro Desktop | $12.99 | per month |
| Smart Keys Pro | $49.90 | per year |
| Smart Keys Pro | $69.99 | per year |
| Smart Keys Pro Desktop | $99.99 | per year |
| Lifetime | $39.99 | one-time |
| Smart Keys Pro | $123.99 | one-time |

**What reviewers like**

- 🚀 Fast and efficient grammar correction
- ✍️ Excellent proofreading capabilities
- 🎯 Intelligent shortcuts save time
- 🌍 Multi-language translation support
- 👍 User-friendly and simple interface

**What reviewers complain about**

- 💰 Expensive pricing model
- 🔐 Requests excessive permissions (credit card, address data)
- ⏳ Severe daily usage limits on free version
- 🚫 Paywall-heavy monetization strategy
- 🐌 Keyboard occasionally laggy

**Reported bugs**

- Connection issues despite active internet connection
- Keyboard lags during use
- Autocorrect performs poorly compared to Apple's native option
- App requests excessive permissions unrelated to keyboard functionality
- Translation accuracy issues reported

**Requested features**

- Add Arabic language support
- Translate incoming messages from other users
- Reduce daily usage limits or offer ad-supported free version
- Lower lifetime pricing (previously $35, now $124)
- Improve keyboard responsiveness


## Frequently asked questions

### Is VoidX free?

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

### Is Smart Keys free?

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

### Which has better reviews, VoidX or Smart Keys?

VoidX is rated higher. VoidX averages 5.0 out of 5 from 2 ratings, while Smart Keys averages 4.6 from 536 ratings.

### Do VoidX or Smart Keys have ads?

Smart Keys shows ads; VoidX does not.

### Which is updated more often, VoidX or Smart Keys?

VoidX ships an update monthly, and Smart Keys every 2 weeks. Most recently, VoidX was updated on October 3, 2026 and Smart Keys on October 17, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*