MABRULABS
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We design and build advanced apps.

Mabru Labs is an app development studio. We create our own products with demanding engineering inside and a simple experience outside.

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Now in developmentRíoRankFIALFAX

Our apps

Our own products, in active development. This is what we are building.

RÍORANKIn developmentSport fishing · River competitions

Catch-and-release fishing competitions, no scale needed.

RíoRank turns every catch into verifiable proof: the fish is measured on a rigid ruler, photographed with the in-app camera and its release is recorded on video. The fish goes back to the river and the ranking stays fair.

The CPVR protocol

How a catch gets validated, step by step.

  1. 1Rigid rulerThe fish is measured on a rigid ruler. Length decides, not the scale.
  2. 2Sealed photoTaken only with the RíoRank camera, with the code of the day in view. The gallery is locked.
  3. 3Release clipA 3-second video proves the fish went back into the water.
  4. 4Crew judgeA teammate reviews the receipt and ticks three checks: mouth closed, eye visible and code.
Design in development, shown with sample data.

What it includes

  • Biometric weightWeight is calculated from length using each species' own factor.
  • Tournaments with Lines outSealed finishing time and anonymous PIN mode: names are revealed at the end, so nobody copies your spot.
  • Game modesTop 5 with auto-culling, 1-on-1 duels and a three-species Grand Slam.
  • Fishing without signalCatches are saved on the phone with a sealed timestamp and sync once the signal is back.
  • Local-first privacyPhotos and videos stay on your phone. Only a text receipt under 1 KB reaches the server, with no coordinates.
  • Weather, flow and labRiver data attached to every catch, plus a private lab with your most effective lures.

FIALFAX

In developmentSports performance and wellness

The command centre for your performance.

Train with guided routines, log what you eat and track your measurements in one app. Your data stays on your device and you compete each season with just your nickname.

Android, iOS and web · seven languages

Built for serious training

  • Your data, on your deviceWorkouts, meals and measurements are stored encrypted on your phone. The cloud backup is end-to-end encrypted before it is uploaded, and it is free.
  • Anonymous seasonal ranking90-day seasons with three rankings: Discipline, Training and Nutrition. Only your nickname and your points are shared.
  • Android, iOS and webThe same features on your phone and in your browser, without relying on a single store.
  • Seven languagesSpanish, English, French, German, Italian, Japanese and Chinese, with dates and numbers in your format.
Design in development, shown with sample data.

All your performance in one app

Each module logs one part of your progress, and it all comes together in your overall progress.

  • Train
    Smart training

    Guided routines and smooth logging of sets and personal bests.

    • Assisted mode: a suggested session based on your days and your equipment, with machines and cables first.
    • Expert mode: your own routines and, if you like, the RIR method with an automatic rest timer.
    • Every set, every rest and every best is saved in your calendar.
  • Nutrition
    Nutrition tracking

    Meal diary and your daily target calculated for a calorie deficit, maintenance or surplus.

    • Your calorie and protein targets are calculated from your weight, height, age, activity and training days.
    • Log each meal using the nutrition label on the pack; calories alone are enough.
    • Close the day whenever you like: it does not reset on its own at midnight.
  • Biometrics
    Biometrics and health

    Tracking with the military method, lab marker logging and supplements.

    • Weight plus neck, waist and hip measurements for your body composition with the military method.
    • Every entry stays fixed in your calendar and feeds your overall progress.
    • Coming soon: lab markers and a supplementation log, as a personal record with no interpretations.

    Educational information on wellness and sports performance. It does not replace medical judgement; always consult a specialist.

Let me know when it launches

What we do

We build apps end to end: the idea, the design, the development, the launch and continuous improvement.

  • Our own products, end to end

    Idea, design and development under one roof. Every decision is made with the person who will use the app in mind.

  • Privacy built into the architecture

    What does not need to leave the device stays there. We design to keep as little data as possible.

  • Made for the real world

    Apps that work by the river, at the gym or with no signal, and sync when the connection comes back.

  • Clear at first sight

    Interfaces that need no manual: the complexity stays inside and what matters stays in view.

Capabilities

  • iOS, Android and web apps
  • Product design and UX/UI
  • Local-first architecture and encryption
  • Camera, video and verification
  • Offline mode and sync
  • Rankings and competitions
  • Multilingual apps

Let's talk

Are you an investor, a partner or would you like to try our apps before anyone else? Write to us.

contacto@mabrulabs.com
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