# Smart Printer－PDF Scanner vs AquaSun

The clearest difference is in-app purchases: AquaSun at none against Smart Printer－PDF Scanner's 2. Smart Printer－PDF Scanner's advantage is update cadence (every 2 weeks vs every 2 months) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Smart Printer－PDF Scanner sells 2 in-app purchases, starting at $4.99 per month. AquaSun asks for nothing beyond the download.

Smart Printer－PDF Scanner ships an update every 2 weeks, AquaSun every 2 months. The most recent releases landed on October 6, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Smart Printer－PDF Scanner | AquaSun |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/aquasun/id6758555201/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | — | Free |
| Size | 9 MB | 13 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ravi chandran M](https://appshunter.io/developer/1756258598) | [EBRAHIM AHMADPOUR](https://appshunter.io/developer/1873603034) |

## What reviewers say

### Smart Printer－PDF Scanner

[App page](https://appshunter.io/ios/app/smart-printerpdf-scanner/id6736524560)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly plan | $4.99 | per month |
| Annual Plan | $14.99 | per year |


### 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 Smart Printer－PDF Scanner free?

Smart Printer－PDF Scanner is free to download, with in-app purchases available.

### Is AquaSun free?

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

### Do Smart Printer－PDF Scanner or AquaSun have ads?

Neither Smart Printer－PDF Scanner nor AquaSun shows ads.

### Which is updated more often, Smart Printer－PDF Scanner or AquaSun?

Smart Printer－PDF Scanner ships an update every 2 weeks, and AquaSun every 2 months. Most recently, Smart Printer－PDF Scanner was updated on October 6, 2026 and AquaSun on October 5, 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.*