# PDB Viewer vs compaso

The clearest difference is in-app purchases: compaso at none against PDB Viewer's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. PDB Viewer sells 1 one-off in-app purchase. compaso asks for nothing beyond the download.

PDB Viewer ships an update monthly, compaso every 2 weeks. Both last shipped on October 31, 2026.

## The numbers

| Metric | PDB Viewer | compaso |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/compaso/id6785981097/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 2 MB | 56 MB |
| Requires iOS | **16.0** | 16.4 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Qvyshift LLC](https://appshunter.io/developer/1536442361) | [Yolber Antonio Rojas Ojeda](https://appshunter.io/developer/6785981099) |

## What reviewers say

### 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 |


### compaso

[App page](https://appshunter.io/ios/app/compaso/id6785981097)

Learn about and practice investing in the Venezuelan stock market. Access real-time data, educational courses, and a simulated portfolio to build your financial knowledge risk-free.

**Highlights:** Simulated investment portfolio, Real-time market data, Professional stock charts, Financial education courses, Watchlist for favorite stocks, Community for investors

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

**In-app purchases:** none


## Frequently asked questions

### Is PDB Viewer free?

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

### Is compaso free?

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

### Do PDB Viewer or compaso have ads?

Neither PDB Viewer nor compaso shows ads.

### Which is updated more often, PDB Viewer or compaso?

PDB Viewer ships an update monthly, and compaso every 2 weeks. Most recently, PDB Viewer was updated on October 31, 2026 and compaso on October 31, 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.*