# PORTSIDE FOS vs HOTs.

The clearest difference is review sentiment: HOTs. at 100% against PORTSIDE FOS's 3%. HOTs. also leads on update cadence (every 5 days vs every 4 months). PORTSIDE FOS's advantage is in-app purchases (none vs 1) and iOS requirement (15.6 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. HOTs. sells 1 in-app purchase, starting at $9.99 per year. PORTSIDE FOS asks for nothing beyond the download.

PORTSIDE FOS ships an update every 4 months, HOTs. every 5 days. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | PORTSIDE FOS | HOTs. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.2 (49 ratings)](https://appshunter.io/ios/app/portside-fos/id1049458379/reviews)** | — |
| Number of ratings | **49** | — |
| Positive reviews | 2.9% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 269 MB | 74 MB |
| Requires iOS | **15.6** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Portside, Inc.](https://appshunter.io/developer/1609132004) | [Lagary Systems, Inc](https://appshunter.io/developer/1705480493) |

## What reviewers say

### PORTSIDE FOS

[App page](https://appshunter.io/ios/app/portside-fos/id1049458379)

This app provides aviation professionals with essential flight planning and scheduling tools on their mobile devices. Access aircraft schedules, crew duty times, flight logs, and trip details, with offline capabilities for use in flight. It integrates with desktop companion applications and international trip support services.

**Highlights:** Aircraft Schedules, Trip and Leg Details, Crew Duty Times, Flight Log Entry, Expense Submission, Offline Airport Directory, Weather and NOTAMs

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### HOTs.

[App page](https://appshunter.io/ios/app/hots/id6477919986)

This aviation tool provides pilots with critical operational data and real-time hazard monitoring. Visualize global weather and turbulence reports on an interactive 3D globe for enhanced situational awareness.

**Highlights:** Real-time hazard monitoring, Interactive 3D globe visualization, SIGMETs, PIREPs, AIREPs, Turbulence reports, High-level hazard overlays, Pilot-focused interface

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HOTs Full Access | $9.99 | per year |


## Frequently asked questions

### Is PORTSIDE FOS free?

PORTSIDE FOS is free to download, with no in-app purchases.

### Is HOTs. free?

HOTs. is free to download, with in-app purchases available.

### Do PORTSIDE FOS or HOTs. have ads?

Neither PORTSIDE FOS nor HOTs. shows ads.

### Which is updated more often, PORTSIDE FOS or HOTs.?

PORTSIDE FOS ships an update every 4 months, and HOTs. every 5 days. Most recently, PORTSIDE FOS was updated on November 6, 2026 and HOTs. on November 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.*