# SparkPDF vs AlignScan

The clearest difference is review sentiment: SparkPDF at 50% against AlignScan's 0%. SparkPDF also leads on rating (5.0 vs 3.3) and monetization model (free with in-app purchases vs paid). AlignScan's advantage is ads (none vs shown). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Both are free to download. SparkPDF sells 4 one-off in-app purchases and AlignScan sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

SparkPDF holds the better App Store score, 5.0 against 3.3. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews point the same way: 50% of SparkPDF's written reviews are positive against 0% of AlignScan's.

SparkPDF ships an update every 10 days, AlignScan fortnightly. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | SparkPDF | AlignScan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/sparkpdf-scan-sign-and-fill/id6760437092/reviews)** | [3.3 (4 ratings)](https://appshunter.io/ios/app/alignscan-document-scanner/id6762578207/reviews) |
| Number of ratings | 2 | **4** |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 10 days** | Fortnightly |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 108 MB | 7 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Moetez Theiri](https://appshunter.io/developer/1832095709) | [智慧 吴](https://appshunter.io/developer/1894708009) |

## What reviewers say

### SparkPDF

[App page](https://appshunter.io/ios/app/sparkpdf-scan-sign-and-fill/id6760437092)

Transform your phone into a powerful PDF scanner, filler, and signing tool. Easily convert paper documents to digital PDFs, add text and signatures, and manage your files on the go. Core features are free, with optional ads or a one-time purchase to remove them.

**Highlights:** Scan documents to PDF, Fill and sign PDFs, Add text, dates, and stamps, Merge and split PDFs, Convert images to PDF, Organize files into folders, Search text within PDFs

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee Support | $2.99 | one-time |
| Extra Support | $4.99 | one-time |
| Big Support | $9.99 | one-time |
| Remove Ads Forever | $9.99 | one-time |


### AlignScan

[App page](https://appshunter.io/ios/app/alignscan-document-scanner/id6762578207)

Easily transform document photos into clear, professional files. Features auto-detection, perspective correction, and image enhancement for polished JPG or PDF exports. Ideal for students, professionals, and everyday users needing quick document scanning.

**Highlights:** Auto document detection and crop, Perspective correction, Image enhancement, A4-style page layout, JPG and PDF export, Privacy-friendly local processing

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AlignScan Pro Monthly | $0.99 | per month |
| AlignScan Pro Yearly | $5.99 | per year |
| AlignScan Pro Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is SparkPDF free?

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

### Is AlignScan free?

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

### Which has better reviews, SparkPDF or AlignScan?

SparkPDF is rated higher. SparkPDF averages 5.0 out of 5 from 2 ratings, while AlignScan averages 3.3 from 4 ratings.

### Do SparkPDF or AlignScan have ads?

SparkPDF shows ads; AlignScan does not.

### Which is updated more often, SparkPDF or AlignScan?

SparkPDF ships an update every 10 days, and AlignScan fortnightly. Most recently, SparkPDF was updated on October 31, 2026 and AlignScan on October 25, 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.*