# SkyDemon vs H145 Flight Perfo

The clearest difference is in-app purchases: H145 Flight Perfo at none against SkyDemon's 1. SkyDemon's advantage is update cadence (monthly vs every 33 months) and device support (3 vs 1). On price, review sentiment, ads and iOS requirement there is nothing between them.

Both are free to download. SkyDemon sells 1 one-off in-app purchase. H145 Flight Perfo asks for nothing beyond the download.

SkyDemon ships an update monthly, H145 Flight Perfo every 33 months. The most recent releases landed on October 26, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | SkyDemon | H145 Flight Perfo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (549 ratings)](https://appshunter.io/ios/app/skydemon/id497184081/reviews)** | — |
| Number of ratings | **549** | — |
| Positive reviews | 92.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 33 months |
| Monetization | Subscription | **Free** |
| Size | 53 MB | 72 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Divelements Limited](https://appshunter.io/developer/497184084) | [AIRBUS HELICOPTERS](https://appshunter.io/developer/442021573) |

## What reviewers say

### SkyDemon

[App page](https://appshunter.io/ios/app/skydemon/id497184081)

Plan and navigate VFR flights across Europe with detailed aeronautical charts, dynamic airspace clipping, and real-time hazard warnings. Features include virtual radar, automated weather briefings, and comprehensive flight logging for pilots.

**Highlights:** Vector aeronautical charts with dynamic airspace clipping, Intuitive route planning and modification, Virtual Radar for hazard and airspace visualization, Automated weather briefings (TAF, METAR, SIGMET), Real-time hazard and airspace warnings, Georeferenced airfield plates and documents, Fuel, weight, and balance calculations

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SkyDemon iOS Subscription | $199.99 | one-time |

**What reviewers like**

- 🚀 Fantastic
- 🚀 Best software ever used
- 🚀 Essential for flying
- 🚀 Excellent app
- 🚀 Unbeatable in all respects

**What reviewers complain about**

- 🐛 Updates can be slow
- 💰 Expensive subscription
- 🔒 Limited to 2 devices

**Reported bugs**

- Incompatible with latest iPad OS
- Crashes when trying to download all charts

**Requested features**

- Print PLOG or route on iPad
- Improved logbook functionality
- Support for official CAA/NATS charts
- Synthetic vision
- IFR flight plan filing to Eurocontrol


### H145 Flight Perfo

[App page](https://appshunter.io/ios/app/h145-flight-perfo/id1389793869)

This application calculates helicopter performance for the BK117 D-2 and D-3 models. It computes various flight parameters based on user-defined conditions and helicopter configuration, ensuring safe and easy operation.

**Highlights:** BK117 D-2/D-3 performance calculation, User-defined flight conditions, Helicopter configuration settings, Maximum Takeoff/Landing Mass, Hover, Climb, Level flight calculations, Speed, Range, Endurance, Height-Velocity envelope

**In-app purchases:** none


## Frequently asked questions

### Is SkyDemon free?

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

### Is H145 Flight Perfo free?

H145 Flight Perfo is free to download, with no in-app purchases.

### Do SkyDemon or H145 Flight Perfo have ads?

Neither SkyDemon nor H145 Flight Perfo shows ads.

### Which is updated more often, SkyDemon or H145 Flight Perfo?

SkyDemon ships an update monthly, and H145 Flight Perfo every 33 months. Most recently, SkyDemon was updated on October 26, 2026 and H145 Flight Perfo on October 12, 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.*