# Flying Calmly vs KnowDelay

The clearest difference is in-app purchases: KnowDelay at none against Flying Calmly's 10. Flying Calmly's advantage is chart position (#104 vs unranked) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Flying Calmly sells 9 in-app purchases, starting at $6.99 per month. KnowDelay asks for nothing beyond the download.

## The numbers

| Metric | Flying Calmly | KnowDelay |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (779 ratings)](https://appshunter.io/ios/app/flying-calmly/id1042610682/reviews)** | — |
| Number of ratings | **779** | — |
| Positive reviews | 95.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#104** | — |
| Size | 6 MB | 85 MB |
| Requires iOS | 16 | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Carlos Aviles Software](https://appshunter.io/developer/397676103) | [KnowDelay LLC](https://appshunter.io/developer/1823292289) |

## What reviewers say

### Flying Calmly

[App page](https://appshunter.io/ios/app/flying-calmly/id1042610682)

**Currently charting:** #104 Top Grossing · Travel (US App Store)

Predict the turbulence on your upcoming flights. Enter your flight details to receive comprehensive reports on potential disturbances and their likelihood. Receive timely updates before you travel, based on public weather data.

**Highlights:** Turbulence forecasting, Flight information input, Scheduled turbulence reports, Weather data analysis, Disturbance strength and likelihood

**Features:** Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flying Calmly Plus | $6.99 | per month |
| Sensors | $0.99 | one-time |
| Small reward | $1.99 | one-time |
| Small reward. | $1.99 | one-time |
| Remove ads | $2.99 | one-time |
| Medium reward | $2.99 | one-time |
| Generous support | $5.99 | one-time |
| Long haul | $6.99 | one-time |
| Generous reward | $6.99 | one-time |

**What reviewers like**

- 🚀 Accurate turbulence forecasting
- 👍 Helpful for anxious flyers
- 🔒 Provides peace of mind
- 📊 Detailed turbulence information
- 🗓️ Tracks turbulence over time

**What reviewers complain about**

- 🐛 Occasional crashes or bugs
- ⏱️ Forecast not always updated during flight
- 🗺️ Doesn't account for actual flight path
- 💰 Paid features can be expensive

**Reported bugs**

- Search function not working for some users
- Sensor features not reliable in-flight

**Requested features**

- Text/push notifications for turbulence updates
- Integration with airline apps
- Customizable turbulence alerts
- Offline mode for in-flight use


### KnowDelay

[App page](https://appshunter.io/ios/app/knowdelay/id6747905808)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Flying Calmly free?

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

### Is KnowDelay free?

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

### Do Flying Calmly or KnowDelay have ads?

Neither Flying Calmly nor KnowDelay shows ads.

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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.*