# Spark vs PDF nano

The clearest difference is rating: PDF nano at 5.0 against Spark's 4.5. Spark's advantage is in-app purchases (none vs 1) and ratings volume (52 vs 1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. PDF nano sells 1 one-off in-app purchase. Spark asks for nothing beyond the download.

PDF nano holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Spark has 52 ratings behind it against 1, so its average is the more settled of the two.

Spark ships an update weekly, PDF nano every 4 days. The most recent releases landed on October 26, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Spark | PDF nano |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (52 ratings)](https://appshunter.io/ios/app/spark-idea-journal/id1470818210/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pdf-nano-pdf-editor-and-reader/id6783288588/reviews)** |
| Number of ratings | **52** | 1 |
| Positive reviews | 76.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 4 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 20 MB | 25 MB |
| Requires iOS | **11.3** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Cameron Nazemi](https://appshunter.io/developer/1470818209) | [Thamer Mohammed](https://appshunter.io/developer/1869675424) |

## What reviewers say

### Spark

[App page](https://appshunter.io/ios/app/spark-idea-journal/id1470818210)

Capture and organize your innovative thoughts in one place. Quickly add, edit, search, and share your ideas with intuitive tools. Personalize your experience with sorting filters and dark mode.

**Highlights:** Quick idea addition, Edit and update ideas, Search by title and description, Filter and sort ideas, Share ideas easily, Dark mode support, Export all ideas

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

**In-app purchases:** none


### PDF nano

[App page](https://appshunter.io/ios/app/pdf-nano-pdf-editor-and-reader/id6783288588)

Edit, translate, and manage PDF documents with a focus on on-device privacy. This app offers tools for scanning, converting, annotating, and organizing your files locally.

**Highlights:** Read, organize, and manage PDFs, Offline PDF translation with layout preservation, Scan documents and create PDFs, Convert PDFs to Word, Excel, or images, OCR for Arabic and English text, Add signatures and annotations, Remove hidden metadata for privacy

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDFnano Pro Lifetime | $4.99 | one-time |


## Frequently asked questions

### Is Spark free?

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

### Is PDF nano free?

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

### Which has better reviews, Spark or PDF nano?

PDF nano is rated higher. Spark averages 4.5 out of 5 from 52 ratings, while PDF nano averages 5.0 from 1 ratings.

### Do Spark or PDF nano have ads?

Neither Spark nor PDF nano shows ads.

### Which is updated more often, Spark or PDF nano?

Spark ships an update weekly, and PDF nano every 4 days. Most recently, Spark was updated on October 26, 2026 and PDF nano 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.*