# ezModbus vs IMSI

The clearest difference is price: IMSI at Free against ezModbus's $4.99. IMSI also leads on iOS requirement (11.0 vs 17.0). ezModbus's advantage is chart position (#125 vs unranked). On ads, in-app purchases and device support there is nothing between them.

IMSI is free to download; ezModbus costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | ezModbus | IMSI |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 41 months | — |
| Best chart rank | **#125** | — |
| Size | 2 MB | 47 MB |
| Requires iOS | 17.0 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Bitmakers LLC](https://appshunter.io/developer/1474083419) | [Toweron Inc.](https://appshunter.io/developer/1477929635) |

## What reviewers say

### ezModbus

[App page](https://appshunter.io/ios/app/ezmodbus/id1474083420)

**Currently charting:** #125 Top Paid · Business (US App Store)

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

**In-app purchases:** none


### IMSI

[App page](https://appshunter.io/ios/app/imsi/id6473978228)

**Features:** Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is ezModbus free?

ezModbus costs $4.99, with no in-app purchases.

### Is IMSI free?

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

### Do ezModbus or IMSI have ads?

Neither ezModbus nor IMSI shows ads.

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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.*