# Boat 3D vs Sign Documents

The clearest difference is in-app purchases: Boat 3D at none against Sign Documents's 4. Boat 3D also leads on iOS requirement (10 vs 13.0). Sign Documents's advantage is update cadence (every 2 weeks vs every 6 months). On price, ads and device support there is nothing between them.

Both are free to download. Sign Documents sells 4 in-app purchases, starting at $2.99 per 7 days. Boat 3D asks for nothing beyond the download.

Boat 3D ships an update every 6 months, Sign Documents every 2 weeks. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Boat 3D | Sign Documents |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 weeks** |
| Size | 165 MB | 79 MB |
| Requires iOS | **10** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Promotive](https://appshunter.io/developer/763695682) | [Mahesh Bansode](https://appshunter.io/developer/1804566389) |

## What reviewers say

### Boat 3D

[App page](https://appshunter.io/ios/app/boat-3d/id1436628880)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sign Documents

[App page](https://appshunter.io/ios/app/sign-documents-pdf-signer/id6748363897)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $2.99 | per 7 days |
| Weekly Plan | $4.99 | per 7 days |
| Monthly Plan | $9.99 | per month |
| Yearly Plan | $9.99 | per year |


## Frequently asked questions

### Is Boat 3D free?

Boat 3D is free to download, with no in-app purchases.

### Is Sign Documents free?

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

### Do Boat 3D or Sign Documents have ads?

Neither Boat 3D nor Sign Documents shows ads.

### Which is updated more often, Boat 3D or Sign Documents?

Boat 3D ships an update every 6 months, and Sign Documents every 2 weeks. Most recently, Boat 3D was updated on October 26, 2026 and Sign Documents on October 25, 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.*