The Code Cipher Get in touch

We build our own products, end to end.

The Code Cipher is a product engineering studio. We pick a real, everyday problem, design the fix, write the code and ship it to people ourselves. We also build this way for other businesses.

Start a project See our services

Testing on Android Tabulo Optipixa

Products 2

Tabulo's scientific keypad in dark mode
Tabulo adding the Groceries and Utilities tabs together for a total of 2,113

Tabulo

Multi-tab calculator

Keep several calculations open side by side and use one tab’s result in another. Change a number and everything linked to it updates.

  • Linked results between tabs
  • Exact decimal math: 0.1 + 0.2 = 0.3
  • Undo anything, even after clearing
  • No ads, no account, works offline
Android · closed testing

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Optipixa's home screen: shrink a photo for any form
Optipixa shrinking a passport photo from 2.66 MB to 49.9 KB, under the 50 KB limit

Optipixa

Photo compressor

Shrinks photos to the exact size an online form asks for, like “350×450 px, under 50 KB”, right on your phone. Nothing is uploaded.

  • Set a max size in KB, get the best quality that fits
  • Presets for passport photos, signatures and A4
  • Crop, rotate and compress up to 50 photos at once
  • No ads, no account, works fully offline
Android · closed testing

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More products are in development. Want something like this built for your business? See our services.

Services 5

The same team that ships our own products builds for yours: from a first prototype to a system that serves real users at scale. See what we’ve shipped.

  1. Digital marketing

    SEO, content and campaigns that bring the right people to your product, measured against the numbers you care about, not vanity metrics.

    Enquire about marketing
    • Search & SEO Technical audits, site structure and the keywords people actually search for.
    • Content Pages, posts and launch copy that rank and convert.
    • Paid campaigns Google and Meta ads, tracked all the way to sign-ups and sales.

  2. Mobile app development

    iOS and Android apps, from first prototype to store release, built to work on small phones, large text sizes and patchy networks.

    • iOS & Android
    • React Native
    • Store release
    Enquire

  3. AI agents for business

    Voice and chat agents that answer calls, book appointments, qualify leads and handle support, connected to the tools you already use.

    • Voice agents
    • Chat & support
    • Automation
    Enquire

  4. Large-scale web applications

    Web platforms built to handle real traffic: architecture, APIs, data, deployment and the monitoring that keeps them running.

    • Architecture
    • APIs & data
    • Cloud & DevOps
    Enquire

  5. Technical consultation

    Starting fresh? We help you choose the stack and architecture before code is written. Running legacy systems? We audit, modernise and migrate them without stopping the business.

    • Greenfield
    • Legacy modernisation
    • Audits
    Enquire

Start a project Book a 15-min callWe reply within 24 hours

How we build

Private by default
Your data stays on your device. No accounts, no tracking, no ads.
Works offline
If a product doesn’t need the internet, it doesn’t ask for it.
Exact, not close enough
We test the details people rely on, like money adding up to the cent.
Small and finished
Each product does one job well and ships complete, not as a demo.

Writing 2

Field notes from building our own products: what worked, what didn’t, and how to do it yourself. Read all posts.

Contact

Have a project in mind? Tell us about it.

Book a free 15-minute call to talk it through, or send a few lines on what you need, your timeline and a rough budget. Questions or feedback about our apps are welcome too.

Book a 15-min call Email us about a project thecodecipher@gmail.com

We reply within 24 hours