RailPilot vs Billie Converter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RailPilot
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RailPilot – The smart control for your model railroad RailPilot lets you control your model trains easily with your iPhone – fast, intuitive, and reliable. The app is specifically designed for use with the Z21 command station and offers a modern alternative to classic model railroad control. Your locos, centrally stored RailPilot stores all locomotive data on a server in your local network – hosted by you. This means your data always stays with you, and there’s no need to sync between devices: everyone on your network accesses the same collection. At a glance: • Train control via the Z21 command station • Central locomotive management through a local server • No need to transfer data between devices • Easy, user-friendly interface • Fast access to your entire locomotive fleet Requirements: • Z21 command station from Roco/Fleischmann • Self-hosted RailPilot server on your local network Get RailPilot now and upgrade your model railroad control system!
Billie Converter
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Billie Converter – Your Capybara of Measurements! Meet Billie, the smartest capybara in the world of conversions! This app was designed to make your life easier when converting units of length, mass, volume, temperature, and even cooking measurements — all with the help of our charming mascot. Key Features: • Fast and accurate length conversions (meters, feet, inches…) • Mass calculations (grams, pounds, ounces…) • Volume conversions (liters, milliliters, cups…) • Temperature conversions (Celsius, Fahrenheit, Kelvin) • Cooking measurements for perfect recipes every time Why Billie stands out: • Simple, lightweight, and intuitive interface • Saves your last conversion status for quick access • Discreet ads that don’t interrupt your experience • And of course… a helpful, adorable capybara by your side! Privacy First Billie Converter does not collect any personal data. Your information stays with you.
Screenshots
Verdict
The clearest difference is iOS requirement: Billie Converter at 13.0 against RailPilot's 18.0. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | RailPilot | Billie Converter |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | Eric Staedler | Marcelo Tokunaga Nakamura |
In-app purchases
RailPilot
No in-app purchases
Billie Converter
No in-app purchases
Questions
Is RailPilot free?
Is Billie Converter free?
Do RailPilot or Billie Converter have ads?
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