# HotSOS Mobile vs Solution Calculator

The clearest difference is update cadence: Solution Calculator at every 6 days against HotSOS Mobile's every 4 months. HotSOS Mobile's advantage is iOS requirement (12.0 vs 16.6). 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.

HotSOS Mobile ships an update every 4 months, Solution Calculator every 6 days. The most recent releases landed on September 24, 2026 and September 4, 2026 respectively.

## The numbers

| Metric | HotSOS Mobile | Solution Calculator |
| --- | --- | --- |
| 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 | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 days** |
| Monetization | Free | — |
| Size | 7 MB | 2 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [MTech](https://appshunter.io/developer/300466381) | [XING WU](https://appshunter.io/developer/1896624836) |

## 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


### Solution Calculator

[App page](https://appshunter.io/ios/app/solution-calculator/id6769040029)

**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 Solution Calculator free?

Solution Calculator is free to download, with no in-app purchases.

### Do HotSOS Mobile or Solution Calculator have ads?

Neither HotSOS Mobile nor Solution Calculator shows ads.

### Which is updated more often, HotSOS Mobile or Solution Calculator?

HotSOS Mobile ships an update every 4 months, and Solution Calculator every 6 days. Most recently, HotSOS Mobile was updated on September 24, 2026 and Solution Calculator on September 4, 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.*