# SIGA vs Clatri

The clearest difference is in-app purchases: SIGA at none against Clatri's 5. SIGA also leads on iOS requirement (15.1 vs 17.0). Clatri's advantage is update cadence (weekly vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. Clatri sells 5 in-app purchases, starting at $4.99 per 7 days. SIGA asks for nothing beyond the download.

SIGA ships an update every 4 months, Clatri weekly. The most recent releases landed on September 26, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | SIGA | Clatri |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Size | 29 MB | 121 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Envision Inversiones Limitada](https://appshunter.io/developer/1481643562) | [Gurwi LLC](https://appshunter.io/developer/1884479635) |

## What reviewers say

### SIGA

[App page](https://appshunter.io/ios/app/siga-pass/id6475899042)

**Features:** macOS Compatibility

**In-app purchases:** none


### Clatri

[App page](https://appshunter.io/ios/app/clatri/id6755964865)

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Clatri AI Weekly | $4.99 | per 7 days |
| Clatri AI Monthly | $16.99 | per month |
| Clatri AI Annual | $120.99 | per year |
| Starter Pack | $10.99 | one-time |
| Pack Plus | $20.99 | one-time |


## Frequently asked questions

### Is SIGA free?

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

### Is Clatri free?

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

### Do SIGA or Clatri have ads?

Neither SIGA nor Clatri shows ads.

### Which is updated more often, SIGA or Clatri?

SIGA ships an update every 4 months, and Clatri weekly. Most recently, SIGA was updated on September 26, 2026 and Clatri 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.*