# Keyboard AI vs PDF Mutation

Keyboard AI and PDF Mutation are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Keyboard AI sells 2 in-app purchases, starting at $7.99 per month and PDF Mutation sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Keyboard AI | PDF Mutation |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (346 ratings)](https://appshunter.io/ios/app/keyboard-ai/id6447576804/reviews)** | — |
| Number of ratings | **346** | — |
| Positive reviews | 38.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | — |
| Monetization | Free with in-app purchases | — |
| Size | 25 MB | 4 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Irina Scelcunova](https://appshunter.io/developer/1737748446) | [Cesar Arturo Chavez Gomez](https://appshunter.io/developer/1891554356) |

## What reviewers say

### Keyboard AI

[App page](https://appshunter.io/ios/app/keyboard-ai/id6447576804)

Enhance your texting and writing with an AI assistant that checks grammar, paraphrases text, writes creative content like poems, suggests replies, and translates languages. Make every message clear, engaging, and efficient.

**Highlights:** Grammar checking, Text paraphrasing, Poem generation, Reply suggestions, Language translation

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium for one month | $7.99 | per month |
| Premium for one year | $49.99 | per year |

**What reviewers like**

- 👍 Good
- 👍 Nice
- 👍 Ligero
- 👍 Buena
- 👍 Todo bien

**What reviewers complain about**

- 💸 Scam, takes money
- 🐛 Doesn't work
- 🐛 Keyboard not available
- 🐛 Removed writing
- 🐛 Can't connect to internet

**Reported bugs**

- Keyboard not available
- Removed half of essay
- Couldn't connect to the internet
- Encountered monthly usage limit
- Not granted access after payment

**Requested features**

- Make it free
- Provide email for complaints


### PDF Mutation

[App page](https://appshunter.io/ios/app/pdf-mutation/id6763960546)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF Mutation Pro | $2.99 | one-time |


## Frequently asked questions

### Is Keyboard AI free?

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

### Is PDF Mutation free?

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

### Do Keyboard AI or PDF Mutation have ads?

Neither Keyboard AI nor PDF Mutation shows ads.

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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.*