# Smoke Alarm vs Docs Scanner & Sign Documents

The clearest difference is in-app purchases: Smoke Alarm at none against Docs Scanner & Sign Documents's 4. Smoke Alarm also leads on ads (none vs shown) and iOS requirement (7.0 vs 15.0). On price, rating, ratings volume and device support there is nothing between them.

Both are free to download. Docs Scanner & Sign Documents sells 4 in-app purchases, starting at $3.99 per 7 days. Smoke Alarm asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Smoke Alarm against 5.0 for Docs Scanner & Sign Documents. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

## The numbers

| Metric | Smoke Alarm | Docs Scanner & Sign Documents |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/smoke-alarm/id1009087896/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/docs-scanner-and-sign-documents/id6467385871/reviews) |
| Number of ratings | **2** | 1 |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 2 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 3 MB | 81 MB |
| Requires iOS | **7.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Xiamen Yipai Electronic Technology Co., Ltd.](https://appshunter.io/developer/901944145) | [GT TRADE SIA](https://appshunter.io/developer/1709071084) |

## What reviewers say

### Smoke Alarm

[App page](https://appshunter.io/ios/app/smoke-alarm/id1009087896)

This utility app allows users to remotely monitor the status of their smoke alarm devices. It provides real-time information on device power, alarm status, and low voltage alerts, ensuring peace of mind.

**Highlights:** Monitor device status remotely, Check device battery level, View alarm status, Receive low voltage alerts

**Features:** macOS Compatibility

**In-app purchases:** none


### Docs Scanner & Sign Documents

[App page](https://appshunter.io/ios/app/docs-scanner-and-sign-documents/id6467385871)

Create custom digital signatures with an intuitive drawing tool, adjusting size, style, and color. Effortlessly scan, add, and organize documents like PDFs and scans. Embrace digital document management and secure collaboration.

**Highlights:** Custom digital signature creation, Document scanning, PDF and scan organization, Intuitive drawing tool, Secure collaboration

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Get Week Full Access | $3.99 | per 7 days |
| Get Pro Access | $4.99 | per 7 days |
| Get Pro Access | $9.99 | per month |
| Get Pro Access | $29.99 | per year |


## Frequently asked questions

### Is Smoke Alarm free?

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

### Is Docs Scanner & Sign Documents free?

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

### Which has better reviews, Smoke Alarm or Docs Scanner & Sign Documents?

Smoke Alarm and Docs Scanner & Sign Documents are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do Smoke Alarm or Docs Scanner & Sign Documents have ads?

Docs Scanner & Sign Documents shows ads; Smoke Alarm does not.

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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.*