FTTX MULTITOOL vs Casto Flasher
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FTTX MULTITOOL
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Diese App ist eine Handyversion der BREKO FTTX MULTITOOL-Webversion. Die App kann die Daten eines Projektes zeigen und gibt die Möglichkeit, die Daten in den Serviceprogrammen zu bearbeiten. Bilder können mithilfe dieser App mit manueller oder automatischer Zuordnung hinzugefügt werden. Die App hat viele andere Funktionalitäten wie Kartenansicht und offline-Modus, mit dem man die Daten in Serviceprogrammen ohne Internetverbindung bearbeiten und speichern kann.
Casto Flasher
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Casto Flasher is a vehicle coding and configuration app for BMW cars. It connects to your own car through an OBD adapter that you plug into the diagnostic socket yourself, reads how the car is configured, and writes coding changes for the factory options your car supports. Everything happens over that local adapter connection, with you at the car. The app has no remote functionality: it cannot locate, unlock, start or otherwise operate a vehicle, and it does nothing at all when the adapter is not connected. WHAT IT CAN CODE - Remote Engine Start: the coding for the manufacturer's own remote start option. Once it is coded, the option is used the way the factory intended, from the car's key fob or from BMW's own My BMW app. Casto Flasher plays no part in that: it is not involved in starting the car and is not even running. The engine runs for up to 15 minutes and then stops on its own, the car stays locked, and the heated seats and heated steering wheel come on where the car has them. - Top Speed Limiter Raised: the electronic top speed limiter set to the figure the factory specifies for your model. - More options are being prepared. The app shows a new one as soon as it is ready for your car. HOW IT WORKS 1. Plug the MHD Universal adapter into your car's diagnostic socket. 2. Let the app check the car. This is free, takes about five minutes, and changes nothing on the car. 3. Choose an option and pay once. The purchase belongs to that one car. 4. Come back to the car and hold to code. About six minutes, while you stand next to it. THE HONEST PART - The check is the only real answer to "will this work on my car". A model name and a year are not enough, because two cars that look identical on paper can answer differently. The app decides at your car, before you pay anything. - Treat a coding change as one that stays. Reverting it is being built and will be free. - Changes to a car's configuration can affect what a dealer covers. If that matters to you, ask your dealer before you buy. You need the MHD Universal adapter, bought separately. We answer in English and German. Casto Flasher is an independent product of ZL Software GmbH. It is not affiliated with, authorised by, endorsed by or connected to Bayerische Motoren Werke AG. BMW, M and all model names are trademarks of their respective owners and are used here only to describe vehicle compatibility.
Screenshots
Verdict
The clearest difference is update cadence: Casto Flasher at every 3 weeks against FTTX MULTITOOL's every 2 months. 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.
FTTX MULTITOOL ships an update every 2 months, Casto Flasher every 3 weeks. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.
| Parameter | FTTX MULTITOOL | Casto Flasher |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.6 | 16.4 — better |
| Further details — not scored | ||
| Size | 43 MB | 66 MB |
| Age rating | 12+ | 4+ |
| Developer | fiber to the people GmbH | ZL Softare GmbH |
In-app purchases
FTTX MULTITOOL
No in-app purchases
Casto Flasher
No in-app purchases









