# Encode Keyboard vs AI Car Doctor

The clearest difference is in-app purchases: Encode Keyboard at none against AI Car Doctor's 4. AI Car Doctor's advantage is update cadence (every 2 days vs every 3 weeks) and iOS requirement (15.1 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. AI Car Doctor sells 4 in-app purchases, starting at $8.99 per month. Encode Keyboard asks for nothing beyond the download.

Encode Keyboard ships an update every 3 weeks, AI Car Doctor every 2 days. The most recent releases landed on November 3, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Encode Keyboard | AI Car Doctor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Size | 10 MB | 41 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dat Thanh Nguyen](https://appshunter.io/developer/1481241176) | [Stefan Routs](https://appshunter.io/developer/1882323617) |

## What reviewers say

### Encode Keyboard

[App page](https://appshunter.io/ios/app/encode-keyboard/id6762639179)

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

**In-app purchases:** none


### AI Car Doctor

[App page](https://appshunter.io/ios/app/ai-car-doctor-obd-diagnostics/id6766066725)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro subscription | $8.99 | per month |
| Monthly Pro+ subscription | $12.99 | per month |
| Yearly Pro subscription | $79.99 | per year |
| Yearly Pro+ subscription | $99.99 | per year |


## Frequently asked questions

### Is Encode Keyboard free?

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

### Is AI Car Doctor free?

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

### Do Encode Keyboard or AI Car Doctor have ads?

Neither Encode Keyboard nor AI Car Doctor shows ads.

### Which is updated more often, Encode Keyboard or AI Car Doctor?

Encode Keyboard ships an update every 3 weeks, and AI Car Doctor every 2 days. Most recently, Encode Keyboard was updated on November 3, 2026 and AI Car Doctor 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.*