# HotSOS Mobile vs KNOW Maintenance

The clearest difference is update cadence: KNOW Maintenance at every 6 weeks against HotSOS Mobile's every 4 months. HotSOS Mobile's advantage is iOS requirement (12.0 vs 15.6). On price, review sentiment, 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.

HotSOS Mobile ships an update every 4 months, KNOW Maintenance every 6 weeks. The most recent releases landed on September 24, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | HotSOS Mobile | KNOW Maintenance |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.6 (58 ratings)](https://appshunter.io/ios/app/hotsos-mobile/id704551252/reviews)** | — |
| Number of ratings | **58** | — |
| Positive reviews | **4.3% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 7 MB | 42 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MTech](https://appshunter.io/developer/300466381) | [Knowcross Ltd](https://appshunter.io/developer/1117325429) |

## What reviewers say

### HotSOS Mobile

[App page](https://appshunter.io/ios/app/hotsos-mobile/id704551252)

Empower hotel staff with a mobile solution for service and facilities management. Access service orders, perform inspections, and manage operations on the go to enhance guest stays.

**Highlights:** Service order management, Guestroom inspections, Public space inspections, Role-based access, On-the-go operations management

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is HotSOS Mobile free?

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

### Is KNOW Maintenance free?

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

### Do HotSOS Mobile or KNOW Maintenance have ads?

Neither HotSOS Mobile nor KNOW Maintenance shows ads.

### Which is updated more often, HotSOS Mobile or KNOW Maintenance?

HotSOS Mobile ships an update every 4 months, and KNOW Maintenance every 6 weeks. Most recently, HotSOS Mobile was updated on September 24, 2026 and KNOW Maintenance on September 18, 2026.

---

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