# NanoPDF vs SynoDocker

The clearest difference is in-app purchases: NanoPDF at none against SynoDocker's 3. NanoPDF also leads on device support (3 vs 1). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. SynoDocker sells 3 in-app purchases, starting at $0.99 per month. NanoPDF asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for NanoPDF against 5.0 for SynoDocker. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Both ship on a similar rhythm, roughly every 6 weeks. The most recent releases landed on October 27, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | NanoPDF | SynoDocker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/nanopdf/id6467386184/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/synodocker/id6802322293/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | Every 6 weeks |
| Monetization | **Free** | Freemium |
| Size | 6 MB | 2 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Giovanni Outerleys](https://appshunter.io/developer/1557846953) | [钊辰 王](https://appshunter.io/developer/1791406641) |

## What reviewers say

### NanoPDF

[App page](https://appshunter.io/ios/app/nanopdf/id6467386184)

Access and view your PDF documents directly from your Apple Watch. Seamlessly sync files from your iPhone, zoom with a tap, and navigate pages intuitively using the Digital Crown. Manage your portable PDF library effortlessly.

**Highlights:** Quick PDF access on Apple Watch, Seamless iPhone to Watch sync, Easy tap-to-zoom functionality, Intuitive Digital Crown navigation, Simple PDF deletion from watch, Integrated user tutorial

**In-app purchases:** none


### SynoDocker

[App page](https://appshunter.io/ios/app/synodocker/id6802322293)

Manage your Synology NAS containers remotely from your mobile device. View container status, resource usage, and logs. Start, stop, and restart containers with ease, even when away from your computer.

**Highlights:** Remote container management, View container status and resource usage, Start, stop, and restart containers, Access container logs, Supports various sign-in methods, Demo mode for exploration

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Yearly | $3.99 | per year |
| Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is NanoPDF free?

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

### Is SynoDocker free?

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

### Which has better reviews, NanoPDF or SynoDocker?

NanoPDF and SynoDocker are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do NanoPDF or SynoDocker have ads?

Neither NanoPDF nor SynoDocker shows ads.

### Which is updated more often, NanoPDF or SynoDocker?

NanoPDF ships an update every 6 weeks, and SynoDocker every 6 weeks. Most recently, NanoPDF was updated on October 27, 2026 and SynoDocker on October 16, 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.*