# PDFSignerScanner vs ThinkMap

The clearest difference is update cadence: PDFSignerScanner at every 11 days against ThinkMap's every 3 weeks. On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. PDFSignerScanner sells 1 one-off in-app purchase and ThinkMap sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

PDFSignerScanner ships an update every 11 days, ThinkMap every 3 weeks. The most recent releases landed on October 6, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | PDFSignerScanner | ThinkMap |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/thinkmap-ai-problem-solver/id6754587551/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 13 MB | 60 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [MANJUR KOLHAR](https://appshunter.io/developer/1845533906) | [Rinith Binny](https://appshunter.io/developer/1565917805) |

## What reviewers say

### PDFSignerScanner

[App page](https://appshunter.io/ios/app/pdfsignerscanner/id6754396681)

Easily add your signature to PDF documents. Create a signature by drawing, taking a photo, or importing an image. The app allows you to customize placement, size, and ink color before exporting a final, shareable PDF.

**Highlights:** Signature creation (draw, photo, import), Signature background cleaning, Signature cropping, Customizable signature placement, Multiple ink colors, Export signed PDFs

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Unlock | $4.99 | one-time |


### ThinkMap

[App page](https://appshunter.io/ios/app/thinkmap-ai-problem-solver/id6754587551)

This AI-powered app helps you solve problems and understand complex ideas through visual thinking. It generates decision trees and mind maps to break down dilemmas, analyze topics, and plan projects. Turn confusion into clarity with structured AI logic and interactive visual tools.

**Highlights:** AI-powered problem-solving, Decision tree generator, Mind map creator, Visual thinking tools, Interactive maps, Offline access

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Pass | $1.99 | per month |


## Frequently asked questions

### Is PDFSignerScanner free?

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

### Is ThinkMap free?

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

### Do PDFSignerScanner or ThinkMap have ads?

Neither PDFSignerScanner nor ThinkMap shows ads.

### Which is updated more often, PDFSignerScanner or ThinkMap?

PDFSignerScanner ships an update every 11 days, and ThinkMap every 3 weeks. Most recently, PDFSignerScanner was updated on October 6, 2026 and ThinkMap on September 23, 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.*