# My Data1 vs AirlineCalc

The clearest difference is in-app purchases: My Data1 at none against AirlineCalc's 1. My Data1 also leads on update cadence (every 2 weeks vs every 2 months) and iOS requirement (9.0 vs 16). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. AirlineCalc sells 1 one-off in-app purchase. My Data1 asks for nothing beyond the download.

My Data1 ships an update every 2 weeks, AirlineCalc every 2 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | My Data1 | AirlineCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/airlinecalc/id6743721054/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 59 MB | 6 MB |
| Requires iOS | **9.0** | 16 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tuan Duong](https://appshunter.io/developer/787874021) | [Alex Deutz](https://appshunter.io/developer/1795229168) |

## What reviewers say

### My Data1

[App page](https://appshunter.io/ios/app/my-data1/id1515267751)

This app lets you create and encrypt notes locally on your device. It also helps you securely hash your passwords before using them on other websites or apps, protecting your sensitive information.

**Highlights:** Local note creation, Markdown formatting, Password encryption/hashing, Data privacy, Secure password management

**Features:** macOS Compatibility

**In-app purchases:** none


### AirlineCalc

[App page](https://appshunter.io/ios/app/airlinecalc/id6743721054)

This aviation utility app offers pilots and aviation professionals essential tools for in-cockpit calculations and flight planning. It includes features for crosswind analysis, flight time compliance, time zone conversions, and temperature adjustments, all in an offline-capable interface.

**Highlights:** Crosswind Calculator, FAR Part 117 Flight Time Calculator, Time Calculator (duty, layover, schedule), Temperature Conversion, Offline functionality, Pilot-friendly interface

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Airline Calc Pro | $1.99 | one-time |


## Frequently asked questions

### Is My Data1 free?

My Data1 is free to download, with no in-app purchases.

### Is AirlineCalc free?

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

### Do My Data1 or AirlineCalc have ads?

Neither My Data1 nor AirlineCalc shows ads.

### Which is updated more often, My Data1 or AirlineCalc?

My Data1 ships an update every 2 weeks, and AirlineCalc every 2 months. Most recently, My Data1 was updated on October 24, 2026 and AirlineCalc on October 24, 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.*