# Top Scanner vs AquaSun

The clearest difference is in-app purchases: AquaSun at none against Top Scanner's 4. AquaSun also leads on ads (none vs shown). Top Scanner's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.6). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Top Scanner sells 4 in-app purchases, starting at $3.99 per month. AquaSun asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Top Scanner against 5.0 for AquaSun. Both are backed by a comparable volume of ratings — 8 and 6 respectively.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Top Scanner | AquaSun |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (8 ratings)](https://appshunter.io/ios/app/top-scanner-smart-pdf-scanner/id1605519446/reviews) | [5.0 (6 ratings)](https://appshunter.io/ios/app/aquasun/id6758555201/reviews) |
| Number of ratings | **8** | 6 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 154 MB | 13 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [TongSoft Information Co., Ltd.](https://appshunter.io/developer/1522822281) | [EBRAHIM AHMADPOUR](https://appshunter.io/developer/1873603034) |

## What reviewers say

### Top Scanner

[App page](https://appshunter.io/ios/app/top-scanner-smart-pdf-scanner/id1605519446)

This app allows you to scan documents, extract text, edit PDFs, and add electronic signatures. It offers features like auto border detection, image enhancement, and cloud backup for your scanned files.

**Highlights:** Document scanning, Image text extraction and recognition (OCR), PDF content editing, PDF splitting and merging, Electronic signatures, Auto border detection, Cloud backup

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 month subscription | $3.99 | per month |
| 1 year subscription | $29.99 | per year |
| OCR 200 Pages | $2.99 | one-time |
| OCR  1000 Pages | $9.99 | one-time |


### AquaSun

[App page](https://appshunter.io/ios/app/aquasun/id6758555201)

Control compatible aquarium lighting hardware via Bluetooth. Adjust RGBW colors, set light modes, and create custom sunrise/sunset transitions and weekly schedules for a consistent aquarium rhythm.

**Highlights:** Bluetooth control for AquaSun Sol hardware, RGBW color adjustment, Sunrise and sunset transitions, Weekly lighting schedules, Power on/off control, Lighting mode selection

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Top Scanner free?

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

### Is AquaSun free?

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

### Which has better reviews, Top Scanner or AquaSun?

Top Scanner and AquaSun are both rated 5.0 out of 5 on the App Store, from 8 and 6 ratings respectively.

### Do Top Scanner or AquaSun have ads?

Top Scanner shows ads; AquaSun does not.

### Which is updated more often, Top Scanner or AquaSun?

Top Scanner ships an update every 2 months, and AquaSun every 2 months. Most recently, Top Scanner was updated on November 3, 2026 and AquaSun on October 31, 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.*