# 4 buttons camera vs Smart Keys

The clearest difference is in-app purchases: 4 buttons camera at none against Smart Keys's 10. 4 buttons camera also leads on iOS requirement (15.8.3 vs 17.0). On price, update cadence, ads 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. 4 buttons camera asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 4 buttons camera | Smart Keys |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (535 ratings)](https://appshunter.io/ios/app/smart-keys-writing-tools/id6602882160/reviews)** |
| Number of ratings | — | **535** |
| Positive reviews | — | 43.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 37 MB | 39 MB |
| Requires iOS | **15.8.3** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 9+ |
| Developer | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) | [Fireflow Creative Collective LLC](https://appshunter.io/developer/1755305724) |

## What reviewers say

### 4 buttons camera

[App page](https://appshunter.io/ios/app/4-buttons-camera/id6502266902)

**Features:** macOS Compatibility

**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 4 buttons camera free?

4 buttons camera is free to download, with no in-app purchases.

### Is Smart Keys free?

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

### Do 4 buttons camera or Smart Keys have ads?

Both 4 buttons camera and Smart Keys show ads.

### Which is updated more often, 4 buttons camera or Smart Keys?

4 buttons camera ships an update every 2 weeks, and Smart Keys every 2 weeks. Most recently, 4 buttons camera was updated on October 21, 2026 and Smart Keys on October 24, 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.*