# SeniorApp.me vs PDB Viewer

The clearest difference is update cadence: SeniorApp.me at every 4 days against PDB Viewer's monthly. SeniorApp.me also leads on iOS requirement (13.4 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. SeniorApp.me sells 1 one-off in-app purchase and PDB Viewer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

SeniorApp.me ships an update every 4 days, PDB Viewer monthly. The most recent releases landed on October 3, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | SeniorApp.me | PDB Viewer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Monthly |
| Size | 55 MB | 2 MB |
| Requires iOS | **13.4** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kimberly Davis](https://appshunter.io/developer/1732253737) | [Qvyshift LLC](https://appshunter.io/developer/1536442361) |

## What reviewers say

### SeniorApp.me

[App page](https://appshunter.io/ios/app/seniorappme/id6504781426)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| My SeniorApp | $19.99 | one-time |


### PDB Viewer

[App page](https://appshunter.io/ios/app/pdb-viewer-3d-molecules/id6777468488)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDB Viewer Pro | $9.99 | one-time |


## Frequently asked questions

### Is SeniorApp.me free?

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

### Is PDB Viewer free?

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

### Do SeniorApp.me or PDB Viewer have ads?

Neither SeniorApp.me nor PDB Viewer shows ads.

### Which is updated more often, SeniorApp.me or PDB Viewer?

SeniorApp.me ships an update every 4 days, and PDB Viewer monthly. Most recently, SeniorApp.me was updated on October 3, 2026 and PDB Viewer 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.*