# KNOW Maintenance vs Relay | Communicator

The clearest difference is review sentiment: Relay | Communicator at 75% against KNOW Maintenance's 0%. Relay | Communicator also leads on update cadence (every 3 weeks vs every 6 weeks). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

KNOW Maintenance ships an update every 6 weeks, Relay | Communicator every 3 weeks. Both last shipped on September 18, 2026.

## The numbers

| Metric | KNOW Maintenance | Relay | Communicator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (437 ratings)](https://appshunter.io/ios/app/relay-communicator/id1643141011/reviews)** |
| Number of ratings | — | **437** |
| Positive reviews | 0.0% of reviews | **75.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 42 MB | 79 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Knowcross Ltd](https://appshunter.io/developer/1117325429) | [Relay, Inc](https://appshunter.io/developer/1221474222) |

## What reviewers say

### KNOW Maintenance

[App page](https://appshunter.io/ios/app/know-maintenance/id1543121376)

Streamline asset management and preventive maintenance for facilities. This intuitive platform digitizes scheduling and work order processes, improving asset lifespan and team efficiency. Collaborate seamlessly with dynamic checklists and real-time communication.

**Highlights:** Asset maintenance management, Work order creation and tracking, Preventive maintenance scheduling, QR code scanning for asset info, Real-time communication and notifications, Digital checklists and SOPs

**Features:** macOS Compatibility

**In-app purchases:** none


### Relay | Communicator

[App page](https://appshunter.io/ios/app/relay-communicator/id1643141011)

This app provides two-way communication and location tracking for teams. It includes features like a panic button and work tracking to enhance team performance and operational efficiency.

**Highlights:** Two-way communication, Panic button, GPS tracking, Work tracking, Radio replacement

**In-app purchases:** none


## Frequently asked questions

### Is KNOW Maintenance free?

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

### Is Relay | Communicator free?

Relay | Communicator is free to download, with no in-app purchases.

### Do KNOW Maintenance or Relay | Communicator have ads?

Neither KNOW Maintenance nor Relay | Communicator shows ads.

### Which is updated more often, KNOW Maintenance or Relay | Communicator?

KNOW Maintenance ships an update every 6 weeks, and Relay | Communicator every 3 weeks. Most recently, KNOW Maintenance was updated on September 18, 2026 and Relay | Communicator on September 18, 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.*