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Tap to Pay — Donation App

A secure and seamless solution that turns any smartphone into a contactless donation terminal, enabling organizations to manage campaigns and accept contributions anytime, anywhere.
Mobile Development
340+
Implemented projects

Project

Client
Tap to Pay
Industry
Digital Payments
Services
Discovery Front-end Development Back-end Development Delivery Support
Links

Tap to Pay is a B2B mobile platform that enables organizations to accept contactless donations directly from a smartphone.

It supports campaign selection, flexible donation amounts, donor information capture, and secure payment processing — all designed for fast and seamless fundraising.

Business Challenges

In the competitive digital payments and nonprofit space, Tap to Pay needed to ensure secure contactless transactions, simplify the donation flow for fast on-site use, and support multiple campaigns within one organization — while remaining reliable and scalable for high-volume fundraising.
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Collaboration

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Goals & objectives

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01/ Build a stable and secure B2B mobile infrastructure for contactless donation processing.

02/ Implement a structured, high-performance donation flow optimized for real-time fundraising.

03/ Develop campaign management logic with flexible designation and transaction fee handling.

04/ Ensure secure payment integration, compliance standards, and scalable backend architecture.

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Solution

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Planning Stages

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Discovery

Analyzing what to do

Active communication with Stakeholders

Define Competitors

Business Requirements

Divide the scope of features by priority

Provide detailed charts and workflows

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Design

Starting with UI/UX design

Analyze UX of competitors

Creating User Flow

Creating Low / High-fidelity wireframes

Moodboard, Define the style of UI, Branding

Design System development

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Development

Starting with development

Tech discovery

High-level architecture and system diagram

Setup project

Kick-off  development

Follow Agile / Scrum

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Delivering

Delivering the product to end users

App Store / Play Market account creation

GDPR, Privacy Policy, Term of Use

All necessary data for the Stores

Releasing on the App Store / Play Market

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Support & growth

Product improving

Ongoing bugs fixing

Adding new features

Plan of future releases

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Technologies used

Front-end
React Native
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Typescript
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Firebase
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Sentry
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React Lottie Player
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Nest.js
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NodeJS
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PostgreSQL
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Firebase
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Redis
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Back-end
React Native
technologies icon
Typescript
technologies icon
Firebase
technologies icon
Sentry
technologies icon
React Lottie Player
technologies icon
Nest.js
technologies icon
NodeJS
technologies icon
PostgreSQL
technologies icon
Firebase
technologies icon
Redis
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Features

The project focused on developing a secure and scalable B2B mobile platform for contactless donations. It included organization login, campaign management, flexible donation input, designation selection, fee coverage logic, donor data capture, and secure Tap to Pay integration optimized for real-time fundraising.
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Welcome & Organization Login

The welcome screen presents Tap to Pay as a contactless donation solution, clearly communicating its purpose of turning a smartphone into a secure payment terminal, while the organization login provides secure B2B access and device linking to ensure each device is connected to the correct account before processing donations.
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Active Campaigns & Search

The Active Campaigns screen allows organizations to quickly browse and select ongoing fundraising campaigns, with each donation assigned to a specific account. A built-in search by name or ID ensures fast access to the right campaign, optimizing the flow for real-time, on-site fundraising scenarios.
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Campaign Details & Donation Amount

The Campaign screen provides key information about the selected fundraising initiative, helping donors understand its purpose before contributing, while the structured amount input with a numeric keypad enables quick and accurate donation entry, along with designation selection to ensure funds are allocated correctly.
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Tap to Pay Donation Flow

The Tap to Pay feature enables donors to complete contributions instantly by tapping their contactless card or smartphone directly on the device. After confirming the donation amount, users securely authenticate the transaction by entering their card PIN, ensuring a fast, seamless, and secure payment experience without additional hardware.
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Payment Processing & Digital Receipt

After confirming the donation, the system securely processes the payment in real time, providing clear feedback during the transaction. Once completed, users receive an instant confirmation screen with a QR-code receipt, allowing donors to quickly scan, save, or share proof of payment for transparency and record-keeping.
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Supporter Details & Transaction Fee Coverage

The Supporter Details screen allows secure collection of supporter information, including name, email, and phone number with country code selection, while the transaction fee coverage option enables donors to cover processing costs so the organization receives the full donation amount before completing the contactless payment.
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Welcome & Organization Login

The welcome screen presents Tap to Pay as a contactless donation solution, clearly communicating its purpose of turning a smartphone into a secure payment terminal, while the organization login provides secure B2B access and device linking to ensure each device is connected to the correct account before processing donations.
Read more
Read less
tap - 1

Active Campaigns & Search

The Active Campaigns screen allows organizations to quickly browse and select ongoing fundraising campaigns, with each donation assigned to a specific account. A built-in search by name or ID ensures fast access to the right campaign, optimizing the flow for real-time, on-site fundraising scenarios.
Read more
Read less
tap - 2

Campaign Details & Donation Amount

The Campaign screen provides key information about the selected fundraising initiative, helping donors understand its purpose before contributing, while the structured amount input with a numeric keypad enables quick and accurate donation entry, along with designation selection to ensure funds are allocated correctly.
Read more
Read less
tap - 3

Tap to Pay Donation Flow

The Tap to Pay feature enables donors to complete contributions instantly by tapping their contactless card or smartphone directly on the device. After confirming the donation amount, users securely authenticate the transaction by entering their card PIN, ensuring a fast, seamless, and secure payment experience without additional hardware.
Read more
Read less
tap - 4

Payment Processing & Digital Receipt

After confirming the donation, the system securely processes the payment in real time, providing clear feedback during the transaction. Once completed, users receive an instant confirmation screen with a QR-code receipt, allowing donors to quickly scan, save, or share proof of payment for transparency and record-keeping.
Read more
Read less
tap - 5

Supporter Details & Transaction Fee Coverage

The Supporter Details screen allows secure collection of supporter information, including name, email, and phone number with country code selection, while the transaction fee coverage option enables donors to cover processing costs so the organization receives the full donation amount before completing the contactless payment.
Read more
Read less
tap - 6
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