# I4 Client vs App4Sales Legacy

The clearest difference is update cadence: App4Sales Legacy at monthly against I4 Client's every 7 months. App4Sales Legacy also leads on iOS requirement (10.3 vs 15.6). I4 Client's advantage is device support (3 vs 1). On price, 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.

I4 Client ships an update every 7 months, App4Sales Legacy monthly. The most recent releases landed on September 9, 2026 and June 7, 2026 respectively.

## The numbers

| Metric | I4 Client | App4Sales Legacy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (4 ratings)](https://appshunter.io/ios/app/app4sales-legacy/id815528148/reviews)** |
| Number of ratings | — | **4** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Monthly** |
| Monetization | — | Free |
| Size | 5 MB | 62 MB |
| Requires iOS | 15.6 | **10.3** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sumatra Software b.v.](https://appshunter.io/developer/702923467) | [Optimizers B.V.](https://appshunter.io/developer/362483158) |

## What reviewers say

### I4 Client

[App page](https://appshunter.io/ios/app/i4-client/id702923464)

**Features:** macOS Compatibility

**In-app purchases:** none


### App4Sales Legacy

[App page](https://appshunter.io/ios/app/app4sales-legacy/id815528148)

Streamline your sales process with this mobile order-taking application. Access your complete customer database, browse a digital catalog, and let customers sign orders directly on your device. Orders are automatically created in your ERP system, eliminating manual entry.

**Highlights:** Digital catalog and lookbook, Quick order registration, Customer-specific price lists, Customer signature capture, ERP system integration, Offline mode for customers and catalog, Barcode scanning

**In-app purchases:** none


## Frequently asked questions

### Is I4 Client free?

I4 Client is free to download, with no in-app purchases.

### Is App4Sales Legacy free?

App4Sales Legacy is free to download, with no in-app purchases.

### Do I4 Client or App4Sales Legacy have ads?

Neither I4 Client nor App4Sales Legacy shows ads.

### Which is updated more often, I4 Client or App4Sales Legacy?

I4 Client ships an update every 7 months, and App4Sales Legacy monthly. Most recently, I4 Client was updated on September 9, 2026 and App4Sales Legacy on June 7, 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.*