# PST Reader vs HDF5 Viewer · File Reader

The clearest difference is update cadence: HDF5 Viewer · File Reader at weekly against PST Reader's monthly. HDF5 Viewer · File Reader also leads on device support (4 vs 2) and iOS requirement (15.0 vs 17.6). On price, ads and in-app purchases there is nothing between them.

Both are free to download. PST Reader sells 3 in-app purchases, starting at $1.99 per month and HDF5 Viewer · File Reader sells 2 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

PST Reader ships an update monthly, HDF5 Viewer · File Reader weekly. The most recent releases landed on September 15, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | PST Reader | HDF5 Viewer · File Reader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Size | 6 MB | 30 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Yevgenii Kryzhanivskyi](https://appshunter.io/developer/1778319692) | [Rush Tools LLC](https://appshunter.io/developer/1896773547) |

## What reviewers say

### PST Reader

[App page](https://appshunter.io/ios/app/pst-reader/id6762496586)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $1.99 | per month |
| Premium Yearly | $14.99 | per year |
| Lifetime Premium | $29.99 | one-time |


### 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 | $6.99 | per 7 days |
| Pro Annual | $69.99 | per year |


## Frequently asked questions

### Is PST Reader free?

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

### Is HDF5 Viewer · File Reader free?

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

### Do PST Reader or HDF5 Viewer · File Reader have ads?

Neither PST Reader nor HDF5 Viewer · File Reader shows ads.

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

PST Reader ships an update monthly, and HDF5 Viewer · File Reader weekly. Most recently, PST Reader was updated on September 15, 2026 and HDF5 Viewer · File Reader on September 22, 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.*