# Spark vs Document Scanner

The clearest difference is ratings volume: Spark at 7.5K against Document Scanner's 108. Spark also leads on rating (4.8 vs 4.5) and device support (3 vs 1). Document Scanner's advantage is update cadence (every 10 days vs every 5 weeks) and review sentiment (86% vs 75%). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Spark sells 2 one-off in-app purchases and Document Scanner sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Spark holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Spark has 7.5K ratings behind it against 108, so its average is the more settled of the two. Written reviews complicate that: 75% of Spark's written reviews are positive against 86% of Document Scanner's, so the app with the better star average is not the one people write more warmly about.

Spark ships an update every 5 weeks, Document Scanner every 10 days. The most recent releases landed on October 14, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Spark | Document Scanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (7.5K ratings)](https://appshunter.io/ios/app/spark-shift-calendar/id390915382/reviews)** | [4.5 (108 ratings)](https://appshunter.io/ios/app/document-scanner-scan-to-pdf/id1521638402/reviews) |
| Number of ratings | **7.5K** | 108 |
| Positive reviews | 74.8% of reviews | **85.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 10 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 10 MB | 14 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [E.L.K. Equities LLC](https://appshunter.io/developer/1775442602) | [Sujal Adhia](https://appshunter.io/developer/1475334795) |

## What reviewers say

### Spark

[App page](https://appshunter.io/ios/app/spark-shift-calendar/id390915382)

This app simplifies shift work for professionals like first responders and healthcare workers. It offers full customization, secure cloud syncing, and streamlined shift trading. Plan your life and stay organized with instant visual cues and reliable support.

**Highlights:** Full shift customization, Secure cloud sync, Streamlined shift trades, Instant visual cues, Comprehensive shift coverage, User-friendly interface

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Subscription Renewal | $0.99 | one-time |
| Initial Annual Subscription | $5.99 | one-time |

**What reviewers like**

- 🚀 Excellent calendar app
- 👍 Easy to use and set up
- 🔒 Secure and reliable
- 💡 Customizable and feature-rich
- 👍 Great for shift work and emergency services

**What reviewers complain about**

- 🐛 Occasional crashes and bugs
- 💰 Subscription model and pricing issues
- 🔧 Needs more frequent updates
- 🔧 Compatibility issues with newer devices
- 🔧 Lack of certain features (e.g., widgets, dark mode)

**Reported bugs**

- Login and authentication problems
- Data loss and sync issues after updates
- Unreliable performance on some devices

**Requested features**

- Ability to sync with more calendar services
- More customization options
- Improved user interface and design
- Ability to view past schedules and events


### Document Scanner

[App page](https://appshunter.io/ios/app/document-scanner-scan-to-pdf/id1521638402)

Easily capture, edit, and organize high-quality scans of documents, receipts, and more directly from your mobile device. Advanced image processing ensures clear, sharp results with smart cropping and auto-enhancement. Organize scans into folders and share them as PDFs or print directly.

**Highlights:** High-quality document scanning, Advanced image processing, Smart cropping and auto-enhancement, Folder organization, PDF sharing and direct printing, Import images from gallery, Offline scanning

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ads free version | $1.99 | one-time |


## Frequently asked questions

### Is Spark free?

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

### Is Document Scanner free?

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

### Which has better reviews, Spark or Document Scanner?

Spark is rated higher. Spark averages 4.8 out of 5 from 7.5K ratings, while Document Scanner averages 4.5 from 108 ratings.

### Do Spark or Document Scanner have ads?

Neither Spark nor Document Scanner shows ads.

### Which is updated more often, Spark or Document Scanner?

Spark ships an update every 5 weeks, and Document Scanner every 10 days. Most recently, Spark was updated on October 14, 2026 and Document Scanner on October 15, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*