# Hotel Ostria vs SIDM

The clearest difference is update cadence: SIDM at weekly against Hotel Ostria's every 2 months. SIDM also leads on iOS requirement (9.0 vs 11.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Hotel Ostria ships an update every 2 months, SIDM weekly. The most recent releases landed on October 3, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Hotel Ostria | SIDM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Size | 35 MB | 68 MB |
| Requires iOS | 11.0 | **9.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Inspire Software Co.](https://appshunter.io/developer/1349096175) | [Confederation of Indian Industry (CII)](https://appshunter.io/developer/835573828) |

## What reviewers say

### Hotel Ostria

[App page](https://appshunter.io/ios/app/hotel-ostria/id1470192177)

**In-app purchases:** none


### SIDM

[App page](https://appshunter.io/ios/app/sidm/id1506379689)

**In-app purchases:** none


## Frequently asked questions

### Is Hotel Ostria free?

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

### Is SIDM free?

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

### Do Hotel Ostria or SIDM have ads?

Neither Hotel Ostria nor SIDM shows ads.

### Which is updated more often, Hotel Ostria or SIDM?

Hotel Ostria ships an update every 2 months, and SIDM weekly. Most recently, Hotel Ostria was updated on October 3, 2026 and SIDM on October 8, 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.*