# Chat vs Sign documents Fast & Secure

The clearest difference is update cadence: Chat at every 4 days against Sign documents Fast & Secure's monthly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Chat sells 7 in-app purchases, starting at $4.99 per 7 days and Sign documents Fast & Secure sells 2 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Chat ships an update every 4 days, Sign documents Fast & Secure monthly. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Chat | Sign documents Fast & Secure |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/sign-documents-fast-and-secure/id6768265137/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Monthly |
| Monetization | — | Free with in-app purchases |
| Size | 17 MB | 28 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [海晨 王](https://appshunter.io/developer/1807389554) | [UPPER UNIT Korlatolt Felelossegu Tarsasag](https://appshunter.io/developer/1896555201) |

## What reviewers say

### Chat

[App page](https://appshunter.io/ios/app/chat-ai-chatbot/id6751721378)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Semanal | $4.99 | per 7 days |
| Mensual | $9.99 | per month |
| Anual | $32.99 | per year |
| 5,000 diamantes | $14.99 | one-time |
| 10,000 diamantes | $24.99 | one-time |
| 20,000 diamantes | $36.99 | one-time |
| Permanente | $39.99 | one-time |


### Sign documents Fast & Secure

[App page](https://appshunter.io/ios/app/sign-documents-fast-and-secure/id6768265137)

Easily create, sign, and store important documents directly on your device. Import files from various sources, customize your signature, and securely share your signed documents via multiple platforms. All your signed paperwork is kept private and accessible locally.

**Highlights:** Create and sign documents instantly, Import documents via camera, gallery, or file manager, Customizable signature styles, Local document storage and archive, Securely export and share signed documents, Privacy-focused, data stays on device

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock full access | $5.99 | per 7 days |
| Fast & Secure Sign Pro | $5.99 | per 7 days |


## Frequently asked questions

### Is Chat free?

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

### Is Sign documents Fast & Secure free?

Sign documents Fast & Secure is free to download, with in-app purchases available.

### Do Chat or Sign documents Fast & Secure have ads?

Neither Chat nor Sign documents Fast & Secure shows ads.

### Which is updated more often, Chat or Sign documents Fast & Secure?

Chat ships an update every 4 days, and Sign documents Fast & Secure monthly. Most recently, Chat was updated on October 24, 2026 and Sign documents Fast & Secure on October 28, 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.*