# Sign documents Fast & Secure vs Battery Analyzer Pro

The clearest difference is update cadence: Battery Analyzer Pro at every 3 days against Sign documents Fast & Secure's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Sign documents Fast & Secure sells 2 in-app purchases, starting at $5.99 per 7 days and Battery Analyzer Pro sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Sign documents Fast & Secure ships an update every 2 months, Battery Analyzer Pro every 3 days. The most recent releases landed on November 9, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Sign documents Fast & Secure | Battery Analyzer Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/sign-documents-fast-and-secure/id6768265137/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 29 MB | 7 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [UPPER UNIT Korlatolt Felelossegu Tarsasag](https://appshunter.io/developer/1896555201) | [剑龙 刘](https://appshunter.io/developer/6817254113) |

## What reviewers say

### 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 |


### Battery Analyzer Pro

[App page](https://appshunter.io/ios/app/battery-analyzer-pro/id6818005687)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Unlock | $3.99 | one-time |


## Frequently asked questions

### Is Sign documents Fast & Secure free?

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

### Is Battery Analyzer Pro free?

Battery Analyzer Pro is free to download, with in-app purchases available.

### Do Sign documents Fast & Secure or Battery Analyzer Pro have ads?

Neither Sign documents Fast & Secure nor Battery Analyzer Pro shows ads.

### Which is updated more often, Sign documents Fast & Secure or Battery Analyzer Pro?

Sign documents Fast & Secure ships an update every 2 months, and Battery Analyzer Pro every 3 days. Most recently, Sign documents Fast & Secure was updated on November 9, 2026 and Battery Analyzer Pro 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.*