# Smart Printer－PDF Scanner vs Solar Service

The clearest difference is in-app purchases: Solar Service at none against Smart Printer－PDF Scanner's 2. Smart Printer－PDF Scanner's advantage is update cadence (every 2 weeks vs every 4 months). On price, ads, device support and iOS requirement 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. Solar Service asks for nothing beyond the download.

Smart Printer－PDF Scanner ships an update every 2 weeks, Solar Service every 4 months. The most recent releases landed on September 4, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Smart Printer－PDF Scanner | Solar Service |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 4 months |
| Size | 9 MB | 52 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Ravi chandran M](https://appshunter.io/developer/1756258598) | [AsianPowerDevicesInc](https://appshunter.io/developer/1214788661) |

## 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 |


### Solar Service

[App page](https://appshunter.io/ios/app/solar-service/id6755455503)

**Features:** macOS Compatibility, 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 Solar Service free?

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

### Do Smart Printer－PDF Scanner or Solar Service have ads?

Neither Smart Printer－PDF Scanner nor Solar Service shows ads.

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

Smart Printer－PDF Scanner ships an update every 2 weeks, and Solar Service every 4 months. Most recently, Smart Printer－PDF Scanner was updated on September 4, 2026 and Solar Service on September 15, 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.*