# 4Control vs SMART Keypad

The clearest difference is iOS requirement: 4Control at 9.0 against SMART Keypad's 14.2. 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.

## The numbers

| Metric | 4Control | SMART Keypad |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 20.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 8 months |
| Monetization | — | Free |
| Size | 24 MB | 90 MB |
| Requires iOS | **9.0** | 14.2 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Climax Technology Co., LTD](https://appshunter.io/developer/438141751) | [Lenze SE](https://appshunter.io/developer/570667635) |

## What reviewers say

### 4Control

[App page](https://appshunter.io/ios/app/4control/id1152212261)

**Features:** macOS Compatibility

**In-app purchases:** none


### SMART Keypad

[App page](https://appshunter.io/ios/app/smart-keypad/id1292192378)

This application enables the diagnosis and configuration of a Lenze i500 inverter via a WLAN module. It offers features for connecting, diagnosing device status, performing basic commissioning, managing parameters, and controlling the inverter manually. Users can also transfer parameter sets and reset errors.

**Highlights:** Inverter diagnosis and parameterization, Device connection and search, Parameter list and management, Manual inverter control, Parameter set transfer, Error reset and device reset

**In-app purchases:** none


## Frequently asked questions

### Is 4Control free?

4Control is free to download, with no in-app purchases.

### Is SMART Keypad free?

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

### Do 4Control or SMART Keypad have ads?

Neither 4Control nor SMART Keypad shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*