Provly: an iPhone app that keeps the proof when you cancel

Provly is an iPhone app concept for a common problem: you cancel a subscription, then a charge arrives anyway.

It keeps the proof in one place, connects the day you asked to cancel with the day you were charged, and turns the record into a dispute pack you can send to your bank.

Role: problem framing, product logic, interface design, working prototype, case-study boards and film direction

Deliverables: iPhone Safari prototype, PDF dispute pack, 12 case-study boards in 4K, two animated board loops, 24-second explainer film and audio-described cut

Tools: HTML, CSS and JavaScript, three.js, code-built film engine, ElevenLabs narration

Type: concept piece. The merchants, bank, charges and account holder are fictional

You asked to cancel on September 19. Six days later, a $24.99 charge appears.

The proof exists, but it is scattered across your inbox, notes and bank statement. Provly brings those pieces together around the two dates that matter.

Provly turns every cancellation into one visual mark: the day you asked, the days after, and any charge that arrives later.

A line, ticks and a square become the product language. The square is vermilion, the red the app keeps for warnings, because the charge is the moment that needs attention.

The first run prepares the app before anything goes wrong.

A new user creates an account, learns what the record is for, and lands on a Home screen ready for its first saved cancellation.

Home opens on the charge that needs attention first.

The Northline Media card shows the $24.99 charge, the two dates and one action: review the charge. Above it, Provly tracks how much money has already come back.

Provly does not cancel for you, and it says so clearly.

It guides you to cancel with the merchant first, then records how you asked: in their app, by email, by phone, by letter or on their website.

Everything saved goes into one vault.

Proof is filed under the request or the charge it belongs to, then kept as saved. Screenshots and notes stay tied to the record.

The review screen lays the record out in order.

The request, confirmation, merchant message, your note, the six days and the $24.99 charge appear together, so the user does not have to count or reconstruct the story by hand.

Export PDF turns the record into a five-page dispute pack.

Page 1 is the summary and the two dates, page 2 is the evidence index, and pages 3 to 5 hold the proof. Nothing is sent automatically. The user decides whether to share it.

Provly records what happened next.

When the bank refunds the charge, the user records it and the record closes. Green appears for one thing only: money back.

The same story becomes a 24-second film.

Six shots, six narrated lines and one music bed follow the same two dates. The charge is the only vermilion beat. A second, audio-described cut adds spoken description of what appears on screen.

The interface was designed to stay readable.

The prototype was checked with VoiceOver on a real iPhone in Safari, by keyboard, with reduced motion, at three screen sizes and at the largest text size, where nothing is cut off.

I designed and built Provly: the problem framing, product logic, interface, working prototype, exported PDF, case-study boards and film.

AI-assisted tools supported selected production tasks, including the narration voice. The direction, product decisions, interface design and final approvals were mine.

This is a concept piece. The merchants, bank, charges and account holder are fictional.

Full case study: akintadestudio.com/work/provly

Credits: music "Minimal Emotion" from Mixkit, free license. Device model "iPhone 16 Pro (4 colors, not a photo)" by motionkitt, CC BY 4.0.