# SMART Keypad vs QRmaint CMMS

The clearest difference is review sentiment: QRmaint CMMS at 83% against SMART Keypad's 20%. 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.

SMART Keypad ships an update every 8 months, QRmaint CMMS every 10 months. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | SMART Keypad | QRmaint CMMS |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 20.0% of reviews | **83.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 10 months |
| Monetization | Free | Free |
| Size | 90 MB | 3 MB |
| Requires iOS | **14.2** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Lenze SE](https://appshunter.io/developer/570667635) | [QRmaint](https://appshunter.io/developer/1728237009) |

## What reviewers say

### 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


### QRmaint CMMS

[App page](https://appshunter.io/ios/app/qrmaint-cmms/id1560976444)

Streamline maintenance operations with a comprehensive system for managing work orders, scheduling tasks, and tracking assets. Monitor inventory and control costs effectively to optimize your maintenance workflow.

**Highlights:** Work Order Management, Task Scheduling, Asset Management, Inventory Tracking, Cost Control

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SMART Keypad free?

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

### Is QRmaint CMMS free?

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

### Do SMART Keypad or QRmaint CMMS have ads?

Neither SMART Keypad nor QRmaint CMMS shows ads.

### Which is updated more often, SMART Keypad or QRmaint CMMS?

SMART Keypad ships an update every 8 months, and QRmaint CMMS every 10 months. Most recently, SMART Keypad was updated on October 7, 2026 and QRmaint CMMS on October 9, 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.*