# מצולות vs ISRTRI

The clearest difference is device support: מצולות at 3 against ISRTRI's 1. מצולות also leads on iOS requirement (15.1 vs 18.6). On price, update cadence, ads and in-app purchases there is nothing between them.

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

מצולות ships an update fortnightly, ISRTRI weekly. The most recent releases landed on September 9, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | מצולות | ISRTRI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Size | 35 MB | 17 MB |
| Requires iOS | **15.1** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [Nadav Menakerman](https://appshunter.io/developer/1608133650) | [ran kellner](https://appshunter.io/developer/1372973121) |

## What reviewers say

### מצולות

[App page](https://appshunter.io/ios/app/id1237358702)

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

**In-app purchases:** none


### ISRTRI

[App page](https://appshunter.io/ios/app/isrtri/id1546991465)

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

**In-app purchases:** none


## Frequently asked questions

### Is מצולות free?

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

### Is ISRTRI free?

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

### Do מצולות or ISRTRI have ads?

Neither מצולות nor ISRTRI shows ads.

### Which is updated more often, מצולות or ISRTRI?

מצולות ships an update fortnightly, and ISRTRI weekly. Most recently, מצולות was updated on September 9, 2026 and ISRTRI on September 15, 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.*