# ISRTRI vs MERAV HAKOSHER

The clearest difference is update cadence: ISRTRI at weekly against MERAV HAKOSHER's every 19 months. MERAV HAKOSHER's advantage is iOS requirement (15.1 vs 18.6). 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.

ISRTRI ships an update weekly, MERAV HAKOSHER every 19 months. The most recent releases landed on October 2, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | ISRTRI | MERAV HAKOSHER |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 19 months |
| Size | 17 MB | 48 MB |
| Requires iOS | 18.6 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [ran kellner](https://appshunter.io/developer/1372973121) | [Arbox LTD](https://appshunter.io/developer/1021244486) |

## What reviewers say

### ISRTRI

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

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

**In-app purchases:** none


### MERAV HAKOSHER

[App page](https://appshunter.io/ios/app/merav-hakosher/id6463198512)

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

**In-app purchases:** none


## Frequently asked questions

### Is ISRTRI free?

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

### Is MERAV HAKOSHER free?

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

### Do ISRTRI or MERAV HAKOSHER have ads?

Neither ISRTRI nor MERAV HAKOSHER shows ads.

### Which is updated more often, ISRTRI or MERAV HAKOSHER?

ISRTRI ships an update weekly, and MERAV HAKOSHER every 19 months. Most recently, ISRTRI was updated on October 2, 2026 and MERAV HAKOSHER 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.*