# HDF5 Viewer · File Reader vs OvpnSpider Connect

The clearest difference is price: HDF5 Viewer · File Reader at Free against OvpnSpider Connect's $2.99. HDF5 Viewer · File Reader also leads on device support (4 vs 2). OvpnSpider Connect's advantage is in-app purchases (none vs 2) and chart position (#193 vs unranked). On update cadence, ads and iOS requirement there is nothing between them.

HDF5 Viewer · File Reader is free to download; OvpnSpider Connect costs $2.99 up front. HDF5 Viewer · File Reader sells 2 in-app purchases, starting at $4.99 per 7 days. OvpnSpider Connect asks for nothing beyond the download.

HDF5 Viewer · File Reader ships an update weekly, OvpnSpider Connect every 9 days. Both last shipped on November 1, 2026.

## The numbers

| Metric | HDF5 Viewer · File Reader | OvpnSpider Connect |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 9 days |
| Best chart rank | — | **#193** |
| Size | 30 MB | 4 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Rush Tools LLC](https://appshunter.io/developer/1896773547) | [ARCNICE PTE. LTD.](https://appshunter.io/developer/1815049563) |

## What reviewers say

### HDF5 Viewer · File Reader

[App page](https://appshunter.io/ios/app/hdf5-viewer-file-reader/id6798266211)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $4.99 | per 7 days |
| Pro Annual | $69.99 | per year |


### OvpnSpider Connect

[App page](https://appshunter.io/ios/app/ovpnspider-connect/id6801364350)

**Currently charting:** #193 Top Paid · Utilities (US App Store)

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

**In-app purchases:** none


## Frequently asked questions

### Is HDF5 Viewer · File Reader free?

HDF5 Viewer · File Reader is free to download, with in-app purchases available.

### Is OvpnSpider Connect free?

OvpnSpider Connect costs $2.99, with no in-app purchases.

### Do HDF5 Viewer · File Reader or OvpnSpider Connect have ads?

Neither HDF5 Viewer · File Reader nor OvpnSpider Connect shows ads.

### Which is updated more often, HDF5 Viewer · File Reader or OvpnSpider Connect?

HDF5 Viewer · File Reader ships an update weekly, and OvpnSpider Connect every 9 days. Most recently, HDF5 Viewer · File Reader was updated on November 1, 2026 and OvpnSpider Connect on November 1, 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.*