# Sign Docs vs HSFP

The clearest difference is in-app purchases: HSFP at none against Sign Docs's 9. HSFP also leads on ads (none vs shown). Sign Docs's advantage is update cadence (every 11 days vs every 3 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Sign Docs sells 9 in-app purchases, starting at $7.99 per 7 days. HSFP asks for nothing beyond the download.

Sign Docs ships an update every 11 days, HSFP every 3 months. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Sign Docs | HSFP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (72 ratings)](https://appshunter.io/ios/app/sign-docs-ai-sign-and-scanner/id6503045218/reviews)** | — |
| Number of ratings | **72** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 11 days** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 153 MB | 45 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jayshri Pipaliya](https://appshunter.io/developer/1728178841) | [Narongdech Sukjan](https://appshunter.io/developer/1896030298) |

## What reviewers say

### Sign Docs

[App page](https://appshunter.io/ios/app/sign-docs-ai-sign-and-scanner/id6503045218)

Easily sign PDF documents, create e-signatures, and fill forms directly on your mobile device. This app eliminates the need for printers and scanners, allowing you to securely sign contracts, invoices, and other official documents in seconds.

**Highlights:** Sign PDFs instantly, Create reusable digital signatures, Fill and sign PDF forms, Scan documents to PDF, Convert images to PDF, Secure document encryption

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Signature PRO - Weekly Exp | $7.99 | per 7 days |
| Signature PRO - Weekly | $7.99 | per 7 days |
| Signature PRO - Monthly | $14.99 | per month |
| Signature PRO - Monthly Exp | $17.99 | per month |
| Signature PRO - Yearly Offer | $19.99 | per year |
| Signature PRO - Yearly | $44.99 | per year |
| Signature PRO - Yearly Exp | $54.99 | per year |
| Signature PRO - Lifetime | $19.99 | one-time |
| Signature PRO Exp - Lifetime | $19.99 | one-time |


### HSFP

[App page](https://appshunter.io/ios/app/hsfp/id6765685166)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sign Docs free?

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

### Is HSFP free?

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

### Do Sign Docs or HSFP have ads?

Sign Docs shows ads; HSFP does not.

### Which is updated more often, Sign Docs or HSFP?

Sign Docs ships an update every 11 days, and HSFP every 3 months. Most recently, Sign Docs was updated on October 24, 2026 and HSFP on October 22, 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.*