Custom web app development gives you software built for your workflow: dashboards, admin panels, customer portals, SaaS products and internal tools that run in any browser. IELTS Test BD, built from scratch, scores all 4 IELTS skills, saves answers through dropped connections and runs a test centre from an 18-screen admin. It suits businesses whose work has outgrown spreadsheets, inboxes and off-the-shelf software.
Updated 27 October 2026
| What you get | A custom web app, dashboard or admin panel, with UI/UX design, backend, API and integrations |
|---|---|
| Who it suits | Teams running daily work on spreadsheets, email and manual steps, or working around software that does not fit |
| Timeline | Set during scoping, based on the screens, user roles and integrations |
| What you need to start | A description of the work the app should handle, who will use it and the tools it must connect to |
| Tech in published builds | React, TypeScript, Cloudflare Workers and Pages, Cloudflare D1 and Supabase Postgres |
| Proof | 3 custom web platforms: IELTS Test BD, NextGen Mobile and Mystic Shop BD |
Each project covers the screens your users see, the server logic behind them and the admin your staff use to run the business.
See orders, payments, students or stock on 1 screen, with the next action placed beside each item. The IELTS Test BD admin opens on pending payments, writing reviews and registrations, so staff start with the decisions that are waiting.
Give customers, students or partners a login where they see their own records, results and documents. Each role gets its own workspace, as with the student, teacher and admin areas on IELTS Test BD.
Turn a process your team repeats every day into software for your own staff, or into a product you sell to other businesses. The scope covers sign-up, user roles, the core workflow and the admin needed to run it.
Connect payment gateways, couriers, email, AI services and the tools you already use. Mystic Shop BD books parcels with Pathao and Steadfast from the order and maps courier status back onto fulfilment automatically.
Screens are planned around the tasks each role performs, on phones as well as desktops. On IELTS Test BD the main action changes with each module's state, so a returning student reaches the right place in 1 tap.
Sensitive actions run on the server and every screen checks the user's role. IELTS Test BD keeps answer keys on the server, stores identity documents and payment proof in private storage, and saves answers as the student writes.
3 ways to get software for your business, compared on fit, cost, data and who keeps it running.
| Compare | Off-the-shelf software | Custom web app | No-code tools |
|---|---|---|---|
| Suits | Standard processes many businesses share, such as accounting, email or a basic CRM | A workflow that earns your money or that no product handles without workarounds | Simple internal tools, prototypes and low-volume workflows |
| Time to start | Days: sign up and configure | Longer: scoping, design and development come first | Fast for a first version |
| Fit to your workflow | You adapt your process to the product | Built around your process, screens and business rules | Limited to the builder's components and logic |
| Upfront cost | Low | Higher, because the software is built for you | Low to moderate |
| Ongoing cost | Subscription, often priced per user | Hosting plus developer time for changes and upkeep | Plan fees that often rise with users, records or features |
| Integrations | Whatever the vendor's connectors and API allow | Any service with an API, connected on your rules | Prebuilt connectors; complex logic gets hard to manage |
| Data and code | Held in the vendor's system; export options vary | Can sit in accounts in your business name | Held on the platform; moving off it usually means a rebuild |
| Changes and growth | Wait for the vendor's roadmap | Any change is possible, and each needs a developer | Easy small edits; limits appear as logic and volume grow |
Use off-the-shelf software where your process is standard, a no-code tool to test an idea, and a custom web app when the workflow is how you earn money or your current tools force constant workarounds.
IELTS Test BD runs a mock test centre in Rajshahi, NextGen Mobile takes cash-on-delivery orders with no platform fees or commission, and Mystic Shop BD joins local payments, couriers and Meta tracking in 1 codebase.
Each project moves from your current workflow to a tested web app in 6 steps.
Describe the work the app should handle, who does it today and the tools it has to connect to.
Rizer maps each user role, screen, data record and integration, then sends a written quote.
Screens are designed around the tasks each role performs and agreed with you before code is written.
The backend, API, admin and user screens are developed and reviewed with you along the way.
Roles, permissions, payments, slow connections and edge cases are tested before the app goes live.
The app is refined from real use after launch and kept updated, backed up and checked.
A web app is quoted after the free 15-minute call, once the scope is written down. These 4 things set both the cost and the timeline.
Benni Klein, Owner, Accessible Trip Brazil
The cost depends on the number of screens, user roles, integrations and business rules, so Rizer quotes after a free 15-minute call. A small internal dashboard and a multi-role platform like IELTS Test BD sit at very different points. Book the call, describe the workflow, and the quote follows once the scope is written down.
The timeline is set during scoping, because it depends on the same things as the cost: screens, roles, integrations and data. A first version with the core workflow can go live before the extras are added, so your team starts using it sooner.
A website mainly presents information, while a web app lets people log in and get work done, such as taking a test, placing an order or approving a payment. Web apps store data per user, apply business rules on the server and usually include an admin panel. If you only need pages that bring in enquiries, see web design.
Use off-the-shelf software when your process is standard, and build custom when the workflow is how you earn money or existing tools force constant workarounds. NextGen Mobile needed typo-tolerant search, Bengali numeral phone input and no monthly fee or cut of each sale, which hosted store platforms did not provide by default.
Yes, Rizer builds admin panels and dashboards, including ones that connect to an existing system through its database or API. The work starts with a review of what the current system stores and exposes, then the screens are planned around the decisions your staff make each day.
Yes, a web app can take card and wallet payments through a gateway, or manual payment proof that an admin approves. Mystic Shop BD uses bKash tokenized checkout, SSLCommerz and manual Nagad, and IELTS Test BD accepts mobile transfer proof with admin approval and keeps a card gateway ready alongside it.
Yes, a web app runs in the phone's browser, so the same build works on phones, tablets and computers with no app store download. IELTS Test BD records Speaking answers in the browser on a phone, tablet or computer. If you need an app store listing or deeper device features, see mobile app development.
After launch, the app is refined from real use and kept updated, backed up and checked. Ongoing care for the app can be set up through website maintenance, so 1 team keeps the code, the hosting and the integrations working.
Describe the work your team repeats, who does it and the tools it touches. Get a scoped quote after the free 15-minute call.
