# Motorkeep vs Sign PDF

The clearest difference is in-app purchases: Sign PDF at none against Motorkeep's 5. Sign PDF also leads on update cadence (every 5 weeks vs every 9 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Motorkeep sells 5 one-off in-app purchases. Sign PDF asks for nothing beyond the download.

Motorkeep ships an update every 9 months, Sign PDF every 5 weeks. The most recent releases landed on November 12, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Motorkeep | Sign PDF |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 5 weeks** |
| Size | 26 MB | 13 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Alvaro Lopez](https://appshunter.io/developer/1750483063) | [Antonio Gonzalez de la aleja german](https://appshunter.io/developer/1839645711) |

## What reviewers say

### Motorkeep

[App page](https://appshunter.io/ios/app/motorkeep/id6692575047)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Create up to 2 vehicles | $2.99 | one-time |
| Create up to 3 vehicles | $3.99 | one-time |
| Create up to 5 vehicles | $5.99 | one-time |
| Create up to 10 vehicles | $12.99 | one-time |
| Create unlimited vehicles | $22.99 | one-time |


### Sign PDF

[App page](https://appshunter.io/ios/app/sign-pdf-fill-forms-and-scan/id6803930702)

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

**In-app purchases:** none


## Frequently asked questions

### Is Motorkeep free?

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

### Is Sign PDF free?

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

### Do Motorkeep or Sign PDF have ads?

Neither Motorkeep nor Sign PDF shows ads.

### Which is updated more often, Motorkeep or Sign PDF?

Motorkeep ships an update every 9 months, and Sign PDF every 5 weeks. Most recently, Motorkeep was updated on November 12, 2026 and Sign PDF on November 6, 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.*