# Comtrade Viewer vs CSIndex

The clearest difference is in-app purchases: Comtrade Viewer at none against CSIndex's 4. Comtrade Viewer also leads on update cadence (fortnightly vs every 6 months) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. CSIndex sells 4 one-off in-app purchases. Comtrade Viewer asks for nothing beyond the download.

Comtrade Viewer ships an update fortnightly, CSIndex every 6 months. The most recent releases landed on September 17, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Comtrade Viewer | CSIndex |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 6 months |
| Size | 4 MB | 8 MB |
| Requires iOS | **15.0** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Russell Patterson](https://appshunter.io/developer/1723606459) | [Matas Paulius Dregva](https://appshunter.io/developer/1722618505) |

## What reviewers say

### Comtrade Viewer

[App page](https://appshunter.io/ios/app/comtrade-viewer/id1469713323)

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

**In-app purchases:** none


### CSIndex

[App page](https://appshunter.io/ios/app/csindex/id6755841809)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Coffee | $0.99 | one-time |
| Large Coffee | $1.99 | one-time |
| Beer | $4.99 | one-time |
| Pizza Slice | $9.99 | one-time |


## Frequently asked questions

### Is Comtrade Viewer free?

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

### Is CSIndex free?

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

### Do Comtrade Viewer or CSIndex have ads?

Neither Comtrade Viewer nor CSIndex shows ads.

### Which is updated more often, Comtrade Viewer or CSIndex?

Comtrade Viewer ships an update fortnightly, and CSIndex every 6 months. Most recently, Comtrade Viewer was updated on September 17, 2026 and CSIndex on September 23, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*