Customer apps
Commerce, booking, loyalty and membership apps used every day.
AI App Development iOS · Android · Cross-platform
iOS and Android apps with AI built in (copilots, smart search, OCR), delivered in weeks by a Bangkok team with 500+ projects behind it.
Talk to an engineerWhat we build
Apps your customers open daily, and tools your team can’t work without.
Internal & field apps
Sales, inspection and operations tools that replace paper and scattered chats.
AI features in-app
Chat copilots, recommendations, image recognition and voice, inside your app.
Features & capabilities
In-app AI copilot
An assistant answering from your business data (RAG).
Smart search & recommendations
Results ranked by real user behaviour.
OCR & image recognition
Reads documents and receipts, checks photos automatically.
Offline-first
Keeps working without signal; syncs when back online.
Push + LINE notifications
Reach users on the channel they actually read.
Analytics dashboard
Usage and revenue visible in real time.
The apps we build, by business
The first six are the apps we build most often. The last six are built for one kind of business. Open any of them for the problem we keep meeting and how we solve it.
Customer app
“Customers order in chat, transfer the money and send a slip. Staff copy every order into a notebook, and once volume picks up, orders slip through.”
What we build- An iOS and Android app where customers browse the catalogue, see live stock and place the order themselves, with no chat needed
- Payment by PromptPay, card or mobile banking, settled and receipted automatically, so nobody checks slips
- Order tracking from received to packed to tracking number, with a push notification at every change
- An in-app assistant that answers product, delivery and returns questions from your shop’s own data and hands over to a person when it runs out
- A back office where the team sees one set of orders, sales and stock, connected to the POS and accounting system you already run
Connects withExisting POS · Omise · PromptPay · Flash Express · Kerry Express · LINE OA · PEAK
Loyalty and membership app
“Half the paper stamp cards get lost, nobody knows who the regulars are, and every promotion goes to everyone the same way.”
What we build- A membership app that signs up with a phone number or LINE account and shows a QR code at the till, so points land the moment the customer pays, with no card to carry
- Tiers, reward redemption and coupons that work in store and online, one scheme across every branch
- Customer groups built from real purchase history, such as regulars who have gone quiet or people who keep buying one category, with a draft offer for each group
- Offers sent by push or LINE OA per group, with a count of who came back and bought after receiving one
- A dashboard for the owner: new members, visit frequency and the unredeemed points still sitting on the books
Connects withExisting POS · LINE OA · Shopee · Lazada · Omise · Accounting system
Booking and queue app
“The phone rings all day with bookings. Front-desk staff drop the customer in front of them to answer it, and people still forget their appointments.”
What we build- An app showing the real availability of each staff member or room, where customers pick a time, book, move or cancel at any hour
- A reminder before the appointment by push or LINE, with a confirm or reschedule button, one tap and done
- Cancelled slots offered automatically to the waiting list, in the order you set
- A staff screen with today’s queue, each customer’s history and past services, and any deposit already paid
- A weekly report to the owner: when the diary fills up, who has gaps, and how many people did not turn up
Connects withLINE OA · Google Calendar · Omise · PromptPay · Existing POS · Google Sheets
Field service and delivery app
“Technicians send photos from site into a LINE group. Finding which job belongs to which customer means scrolling back through hundreds of messages.”
What we build- A staff app with today’s jobs in route order, each with the address, contact number and what needs doing at that stop
- Before and after photos, a signature on the screen and job close-out on site, all filed to that customer’s job sheet by itself
- Works without signal and syncs on its own when the connection returns, with nothing to re-enter
- The system reads the photos and the technician’s notes, drafts the completion report for the customer and alerts when a job runs past its time
- A manager screen with job locations, team status and the job sheets ready to invoice, connected to the accounting system
Connects withGoogle Maps · LINE OA · Existing ERP · PEAK · FlowAccount · Google Sheets
Internal operations app
“Requisitions, leave forms and reports still live on paper and in Excel, passed hand to hand. Checking a status means walking over to ask.”
What we build- An app where staff submit leave, requisitions, expense claims and other requests from a phone, with a photo of the receipt attached
- Approval chains that follow your org chart, with managers approving in LINE or in the app and everyone able to see whose desk a request is sitting on
- The system reads the attached receipt, fills in amount and category, and flags anything over the limit or already claimed
- Announcements, handbooks and company forms in one place, with an assistant that answers benefits and policy questions from the actual documents
- A back office for HR and accounts that passes approved items to the payroll and accounting systems you already run, with nothing retyped
Connects withMicrosoft 365 · Google Workspace · LINE OA · Existing HR system · PEAK · SAP B1
LINE Mini App (LIFF)
“You want customers on an app, but nobody wants to install another one. Downloads stay low, and the LINE OA can only answer chat.”
What we build- A LINE Mini App built on LIFF that opens from the rich menu, a link or a QR code, with LINE login and an add-friend prompt for your OA on the same screen
- Ordering, booking or a points card that collects points when customers scan the QR at the counter with LINE’s camera, paid by LINE Pay, PromptPay or card
- Booking confirmations and order status sent as service messages, which reach customers before they add your OA, with promotions going through the OA to its followers
- An assistant in the OA chat that answers product and order questions from real data and opens the Mini App page that matches the question
- A back office connected to your POS or existing system, and a dashboard showing whether customers came from the menu, a link or a friend’s share, and what they did next
Connects withLINE OA · LINE Login · Messaging API · LINE Pay · PromptPay · Existing POS · Google Sheets
e-KYC and digital ID verification
“Customers send a photo of their ID card and a selfie on LINE, and staff eyeball whether it’s the same person. Copies of ID cards pile up in chats and inboxes, and opening an account takes days.”
What we build- A sign-up flow where customers photograph both sides of their ID card and the system reads it, or staff read the chip at a branch, then a selfie with a liveness check, matched to the card photo
- Checks against official sources where your business qualifies: card status with the Department of Provincial Administration, ThaID, or NDID through the customer’s own banking app
- A review queue that shows staff only the cases that don’t match, with card, face and the flagged point side by side; a person decides and the reason is logged every time
- PDPA consent recorded for every customer, card and face images encrypted and kept only as long as the law requires, and an audit log of who opened whose data and when
- Verified data passed to your core system, lending system or CRM through its API so the account opens there, with status updates to the customer in the app or on LINE
Connects withThaID · NDID · DOPA card status check · Smart card reader · Core or lending system · Salesforce · LINE OA
School management system
“Parents ask about timetables, fees and homework in the class LINE group. Teachers answer until late, and the registrar still prints receipts by hand.”
What we build- A parent app for timetables, homework, grades and fee payment in one place
- A teacher app for attendance, grades and announcements to the right class
- A back office for registrar, finance and reports to management
- An in-app assistant that answers calendar, fee and policy questions from the school’s own notices, and passes anything about a specific child to the class teacher
- Alerts to parents when a child is absent, a fee is due or a teacher posts a new notice, by push or LINE
Connects withExisting student records · Payment gateway · PromptPay · LINE OA · Google Workspace for Education
Online testing platform
“Every exam means printing papers, booking rooms and marking by hand. Results take a week, and the online tool we tried couldn’t stop cheating.”
What we build- A question bank that randomises a different set per candidate, timed and auto-marked
- Anti-cheating with camera, screen lock and behaviour logging during the exam
- Per-candidate and per-question reports, delivered the moment the exam ends
- An assistant for teachers that drafts new questions from the teaching material and tags them to topics in the bank, for the teacher to check and approve before use
- First-pass marking of written answers against the teacher’s rubric, with reasons shown, and the teacher confirming the final mark
Connects withExisting LMS · Membership system · Payment gateway · Digital certificates · Google Workspace for Education · LINE OA
Restaurant POS and ordering
“The counter runs one POS, delivery runs three more apps. Closing means adding up four totals, and we still don’t know which dish makes money.”
What we build- A POS that takes counter orders, QR orders from the table and delivery-app orders on one screen
- A kitchen queue in real time, with ingredient stock deducted per dish sold
- Daily sales, profit per dish and peak hours sent to the owner
- An alert when an ingredient is about to run out based on last week’s sales, with a purchase order drafted for the manager to confirm
- Sales from every channel posted to the accounting system by itself, with each delivery app’s commission separated out
Connects withLINE MAN · Grab · foodpanda · Receipt printers · PromptPay · PEAK · FlowAccount
Guest app and hotel booking
“Guests queue at the desk to check in and phone for room service. Housekeeping learns which rooms are free from a sheet of paper passed around.”
What we build- A guest app for direct booking, pre-check-in, room service and requests from the room
- A staff app for housekeeping and maintenance to take jobs and update room status from a phone
- PMS integration so availability, rates and bills agree everywhere
- An in-app assistant that answers breakfast hours, transfers and nearby places in the guest’s own language, and routes requests to the department responsible
- A manager dashboard showing rooms cleaned, maintenance jobs open and guest requests waiting longer than the agreed time
Connects withPMS · Channel manager · Payment gateway · Digital door locks · LINE OA · WhatsApp
Resident app for juristic persons
“Common fees are overdue on dozens of units and the office phones each one. Parcels pile up at the guardhouse until someone asks. Repair requests are buried in a LINE group of five hundred residents.”
What we build- Visitor pre-registration: the resident sends a QR code to the guest, the guard scans it and the gate opens, with no ID card to swap
- Parcel notices the moment the office logs a delivery, with a photo and pickup point, and a record of who collected it
- Common-fee and water bills in the app, paid by PromptPay or card, receipt issued automatically, with a reminder before the due date
- Repair requests with photo and location, sorted and sent to the in-house technician or the contractor, with status visible to the resident until the job closes
- Announcements, meeting resolutions and facility booking sent by push or LINE instead of the resident LINE group
Connects withJuristic accounting system · PromptPay · LINE OA · Gate and intercom systems · Car park barriers · Google Sheets
Patient app and appointments
“Patients phone to book in the morning until the line jams, wait an hour outside the consulting room, and drive in to collect results.”
What we build- An appointment app showing real doctor availability, with reminders and check-in from a phone
- Results, appointment slips and treatment history on demand, with refill reminders
- Built to PDPA and health-data rules, from encryption to access rights
- An in-app assistant that answers preparation instructions, opening hours and insurance questions from the clinic’s own information, and passes anything about symptoms to a nurse
- Payment for treatment and medicine in the app, with the insurance claim submitted and the receipt issued automatically, so fewer people queue at the cashier
Connects withExisting HIS · Queue system · LINE OA · Payment gateway · Health insurers · Laboratory LIS
How it works
01
Scope + prototype
Your requirement becomes a clickable prototype and a fixed quote.
02
Build with AI
Design, code and tests produced AI-assisted, senior-reviewed.
03
Launch & iterate
Store submission, analytics wired, monthly improvement cycles.
Works with the tools you already use
Your app plugs straight into the systems your business already runs.
FlutterReact NativeFirebaseSupabaseStripeOmiseLINE LoginApple PayGoogle Maps
Development process
- 1
Discover
Requirements, users and success metrics, with scope and price fixed before we start.
- 2
Design
UX and system architecture; the prototype is approved before anything is built.
- 3
Build
AI-accelerated sprints with a demo every week, reviewed by senior engineers.
- 4
Test
QA, security and performance verified against the agreed scope.
- 5
Launch & care
Production deploy, team training, and a monthly care plan.
Why DNA Maker
500+ projects since 2012
Enterprise track record across Thai banking, energy and retail leaders.
Fixed scope & price
Agreed before we start, with no surprises mid-project.
AI-fast, senior-reviewed
Our team builds with AI, so we deliver 3× faster with senior engineers guarding quality.
5 languages, Bangkok-based
We communicate and deliver in Thai, English, Japanese, Korean and Chinese, with PDPA in mind.
Turn your business problem into a system that works for you
Tell us today — get an executive-ready proposal with the plan and budget.
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