Research prototype. Synthetic data and simulated payments only — not an official or production security service. Limitations

Tumaini Assist · for people

Your companion for checking what you receive.

Got a message, call or video that doesn't feel right? Share it with Tumaini. It checks for warning signs and tells you, in plain words, what to do next.

Share it. Check it. Know what to do.

Mobile companion in development · web version available today
Concept screen

Why would I need it?

Computers can now copy a person's voice from a few seconds of recording. Videos can be changed. Messages can look exactly like they come from your bank or a government office.

Scammers use this to make you act fast — send money, share a code, click a link. Tumaini gives you a calm moment to check before you do.

Step by step

How it works, from the very beginning.

Six steps, from getting the app to staying safe. Every phone screen on this page is a design for the coming app, not a screenshot of a released one.

  1. 1Step 1 of 6

    Get Tumaini

    When the app is ready, you'll open it and see a simple welcome. There is no account to create.

    Choose English or العربية, then choose what helps you: larger text and spoken guidance.

    Mobile companion in development

    It is not in any app store yet. Until it is, you can use the same checks on this website.

    Concept screenWelcome
    Concept screenLanguage selection
    Concept screenAccessibility preferences
  2. 2Step 2 of 6

    Receive something suspicious

    A voice message arrives. It sounds like your grandson. He says he has a new number and needs money today — and asks you not to tell anyone.

    That feeling of “something isn't right” is the moment to check.

    This is a made-up example. Omar is fictional.

    Concept screen
  3. 3Step 3 of 6

    Share it to Tumaini

    Press and hold the message, tap Share, and choose Tumaini — the same way you would send a photo to a friend.

    Tumaini asks one simple question: who does the message say it's from?

    Tumaini only sees what you choose to share. It cannot read your other messages. The share option shown here is a design for the coming app; on the website today you upload the file instead.

    Concept screenSystem share sheet with Tumaini
    Concept screenShare intake
  4. 4Step 4 of 6

    Tumaini examines the message

    You'll see “Checking your message…” for a few seconds while Tumaini:

    • checks the voice
    • understands what it is asking you to do
    • prepares clear guidance
    Concept screen
  5. 5Step 5 of 6

    Get a clear explanation

    The answer comes first, in large words: “Please check before sending money.”

    Then one plain reason, and one next step: call him using a number you already know.

    • Read aloud — planned for the app
    • See details — for anyone who wants the evidence
    • Report — so others can be warned
    Concept screen
  6. 6Step 6 of 6

    Take the safe action

    Tumaini gives you something practical to do, such as:

    • Call your trusted contact on a number you already have.
    • Open your bank's official app instead of a link.
    • Check the organisation's official website.
    • Report the suspicious message.

    Tumaini can't promise who someone is. A call to a number you already trust can.

    Concept screen

What if Tumaini isn't sure?

Then it says so. Plainly.

Tumaini never turns a guess into a certainty. If the evidence is unclear, you'll see “We can't confirm this” — and the same safe next step: check with the person or organisation using contact details you already trust.

If a check isn't working, Tumaini tells you that too. A payment in the demo stays on hold until it is confirmed, whatever the AI says.

Three possible answers

  • ConfirmedA registered organisation signed exactly this message — or your contact confirmed it.
  • Please check firstWarning signs, or we can't confirm who sent it. Use a trusted way to check.
  • Don't do itIt asks for a password or code, or the message was changed. Never share.

Your information

What happens to my information?

  • Tumaini only sees what you choose to share. It does not watch your screen or read your messages.
  • Recordings and files are analysed and not kept. Tumaini keeps a fingerprint of the file and the result.
  • Tumaini will never ask for your password, PIN or a code sent by text.
  • Some extra checks may use an outside AI service. Tumaini asks you first, every time, and works without it.

Read the privacy notice

Concept screen

Does it work in Arabic?

Yes. Results, reasons and safe next steps are written in English and Arabic, and Tumaini understands requests written in Arabic — including Gulf phrasing and Arabic numerals.

The voice check has been tested on one Arabic dataset. It has not been tested on every dialect, and some website menus are still English only.

توقّف — تحقّق بشكل مستقل قبل أن تتصرف

اتصل بالشخص على الرقم المحفوظ لديك مسبقًا، أو اطلب من جهة اتصال موثوقة التأكيد.

لا تشارك أي رمز أو كلمة مرور.

The exact Arabic wording Tumaini's risk policy shows today (“Hold — verify independently before you act”).
Concept screen

For families

Clear guidance for children, too.

Children are targeted with fake prizes and game rewards that ask for a parent's card or a code. Tumaini's answer for a child is short and kind: stop, don't send anything, show a grown-up.

The live demo detects this scam for real. The child-friendly wording is written for this example; automatically adapting wording to age is not built yet.

What if I need help?

If you have already sent money or shared a code, call your bank straight away using the number on your card, then contact the police.

A helper that checks suspicious messages, voice notes, pictures and videos, and tells you in plain words what to do next. “Tumaini” means hope in Swahili.

No. You share what you received, answer one question, and read the result. The technical details are there only if you want them.

The mobile app is still being built and is not in any app store. You can use the same checks on this website today — on a phone, tablet or computer.

This is a research prototype. Using the website demo is free and needs no account.

No. Nobody can do that reliably. Tumaini looks for warning signs and tells you how sure it is. That is why it always points you to a safe way to confirm — like calling someone on a number you already have.

Never. If anyone asks you for a password, PIN or a code sent by text — even if they say they are Tumaini, your bank or the government — do not share it.

See every screen of the app design →