Apps and practical AI for small businesses. One person, plain English, a fixed price agreed before any work starts.
Tap an app to order one like it. Examples only: names and figures are made up.
App prices
Starter and Business are fixed prices for the features listed: order below with a 50% deposit, or email me first. Custom apps get a fixed written quote once you have told me what you need.
For a café, salon, club or trade that needs a simple presence on customers' phones.
£1,500
Live in about 2 weeks
Most popular
For bookings, orders, members or customer accounts. The app most small businesses actually need.
£3,500
Live in 4 to 6 weeks
For payments, integrations with the systems you already use, or AI features.
from £7,500
Timeline agreed with the quote
Already have an app that is broken, rejected by Apple or abandoned by its developer? I fix those too, at a fixed fee after a free look. Ask for a free look
Pick an app and any extras, then pay the 50% deposit on Stripe or email me first. Custom apps and AI work start with an email about what you need.
Android, payments and AI are priced into Custom quotes.
Buying as a private person, you can cancel within 14 days of paying for a full refund. The kickoff call and the work wait until those 14 days end, unless you tick below to start sooner.
Your choices
Not sure yet
Price
Nothing to pay yet
Email me what you need. You get a fixed written quote before any work starts.
You pay on Stripe's secure page; Cambyte never sees your card details. I then email you, usually the same working day, to book the kickoff call.
Card payment online opens soon. Email this request and I'll reply with how to pay the deposit.
Email my requestOpens your own email app with this filled in. Nothing is sent until you press send.
Prices are in pounds sterling, wherever you are based. Anything beyond the listed features is quoted in writing before it is added. UK agencies typically quote £10,000 to £25,000 for a simple app; I charge less because there is no office, no account managers and no outsourcing.
Android, AI chat and card payments can be added when you order online. Store listing and web app are quoted by email.
The build price is the same either way and the code is yours: 50% deposit to start, 50% when Apple approves the app, then 30 days of free bug fixes. After that, changes are £45 an hour, quoted first, or a care plan keeps the app healthy. Plans start the month after launch, roll monthly with 30 days' notice, and unused hours last 3 months.
£49 / month
Starter apps that rarely change
Add Care to my order£149 / month
Business apps with regular updates
Add Care Plus to my order£299 / month
Apps your customers rely on daily
Add Care Pro to my orderApp development
Native iPhone, iPad and Android apps, taken all the way from idea to the App Store and Google Play.
Bookings, online orders and invoices, working the way they would in your own app. Tap through them.
Customers pick a service and a free time, pay a small deposit and get a reminder the day before. Fewer no-shows, no phone tag.
Demo only: nothing is booked or charged.
AI for business
Practical AI for small teams: the right tools, wired into how you already work, with your data kept where it belongs.
On WhatsApp, phone and web chat. It answers customers day and night, books appointments into your calendar and hands over to your mobile when a person is needed.
Customers or staff ask, and it answers from your price lists, policies and manuals. When it does not know, it says so instead of guessing.
Sorting the inbox, drafting quotes, chasing follow-ups, writing weekly reports. They have hard limits and ask you before anything risky.
Invoices, receipts and PDFs are read and typed into your spreadsheets or accounting software.
Claude, Gemini and voice AI built into your apps and workflows. Your own tools get smarter without changing how you work.
You get a message on your phone when a site, booking system or order feed stops working.
Small, narrow agents that handle one job each, with you in charge. Each one tells people it is an AI.
Answers customer chats on your website at any hour, with phone calls as a later stage. It books appointments, then emails you a summary of every conversation.
Example conversation
Example only, not a real customer.
Price: ask for a quote
Ask for a quoteMakes, moves and cancels bookings against your business calendar, and sends reminders before each appointment.
Example conversation
Example only, not a real customer.
Price: ask for a quote
Ask for a quoteAsks visitors the right questions on your website or on WhatsApp (business use only), then emails you a ranked list of the enquiries worth calling first.
Example conversation
Example only, not a real customer.
Price: ask for a quote
Ask for a quoteSends polite follow-ups when a quote has gone unanswered. You approve every message before it goes out.
Example conversation
Example only, not a real customer.
Price: ask for a quote
Ask for a quoteDrafts reminders for unpaid invoices and requests for reviews after a job. You approve each one.
Example conversation
Example only, not a real customer.
Price: ask for a quote
Ask for a quoteAnswers staff questions from the firm's own documents, running on a computer in your own office. See private local AI.
Example conversation
Example only, not a real customer.
Price: ask for a quote
Ask for a quoteTell me how your business runs and I will find where AI would save you time, and where it would not. Training for your team can be part of the quote, and the quote is fixed before any work starts.
Private local AI
Private, on-premises AI when data cannot leave the building.
The AI model runs on a computer in your office. It can work with the internet switched off, so client files, health records or financial data never go to an outside company. It is a good fit for clinics, solicitors, accountants and anyone with confidential data.
A typical private set-up
An illustration. Your set-up is planned around your data and budget.
Websites
Fast, simple websites for small businesses, built by one person and written in plain English.
Your website is yours. You can see every payment in your own Stripe account, and a person is always one click away from the assistant.
Price: ask for a quote. Every website is priced per project. Care plans are available if you want someone to look after the site afterwards.
The demo is a made-up business. Nothing in it is real, and no payment is taken.
Draw & Learn to Talk with Bob
Everything here is live. Download it, play it, check it.
Download what I built. The first week is free.
Most developers show you screenshots. I would rather you put a finished app on your own phone and judge for yourself.
A children's drawing app: kids trace, colour and learn first words, letters and numbers while Bob the robot says every word out loud in 19 languages. I designed it, built it, took it through Apple's strict Kids-category review and published it. It has had four releases, the latest adding a free trial and in-app subscriptions. Everything you see in it, I can do for your business.
Scan with your phone, or tap on iPhone.
AI Secretary, a WhatsApp AI receptionist. A test version answered WhatsApp messages end to end in October 2026.
Marketing automation: weekday outreach emails with safety checks and an hourly App Store ad optimiser with hard spending limits.
Local AI across two computers: a gaming PC and a Mac mini, linked by Thunderbolt, ran a large open model with no cloud service.
How it works
My AI assistant on this page answers questions about apps, prices and ordering at any hour. When you are ready, email me about the business and I ask the awkward questions. If a call would help, I arrange one by phone or video, from any country. No obligation.
Within two days you get a one-page plan: what the app does, screen by screen, the price and the date. Starter and Business keep their website price; Custom gets a fixed quote. Agree it and we start within a week (buying as a private person: after your 14-day cancellation period, unless you ask to start sooner).
A test version on your own phone within the first week, then updates every few days. You see it grow and steer it.
I submit to Apple and deal with their review, which usually takes one to three days (the launch date is Apple's call). Then you get the code, the accounts and a plain-English guide. After that, care plan or goodbye, your call.
Questions
For a Starter or Business app, choose your extras in the order form under the prices and pay the 50% deposit on Stripe's secure checkout. I then email you, usually the same working day, to book a kickoff call and agree the written plan. Buying as a private person, the work waits until your 14-day cancellation period ends, unless you tick the box to start sooner. The other 50% is invoiced when Apple approves your app, and a care plan, if you chose one, starts the month after launch. If what you need turns out bigger than the package, I tell you in writing before doing any extra work, and if you would rather not go ahead you get the whole deposit back. The details are in the terms.
You do, fully, once the final payment clears. Source code, design files, the App Store listing and any accounts are handed over in your name. If you ever want another developer to take it on, they can.
Yes. Apple requires apps to be published under the account of the business that owns them, so I set one up with you on day one. It costs £79 a year, paid to Apple. Approval from Apple can take a few days for a sole trader and up to two weeks for a limited company, so we start that first while I build. Apple's review then usually takes one to three days. I handle it, but I never promise a public launch date, because that last step belongs to Apple.
Every app can have an Android version, built natively in Kotlin, for 40% on top of the iPhone price. Many small businesses start with iPhone and add Android once the app is earning its keep. If most of your customers use Android, say so when you email and we plan for both from the start.
Without a care plan, email me and you get a quote, usually in hours at £45 an hour. On a care plan you have a bank of hours each month and just ask. Either way, nothing is done without you agreeing it first.
Yes, from any country. Everything is done by email, test builds on your own phone and, when needed, a video call, so location does not matter. I work in English or Portuguese and arrange any call at a time that suits your time zone. Businesses near Cambridge can also meet for coffee.
There is no price list, because every business is different. Email me how your business runs and you get a fixed written quote, and nothing starts until you agree it.
About
I run Cambyte from Cambridge, UK, and take on projects from any country. I'm an independent developer with an app on the App Store, a Computer Science student at the University of London, and someone who has spent over ten years in public-sector roles explaining complicated things to people who just needed them sorted. That is the job here too: understand the problem, build it properly, explain it clearly.
I use AI tools every day to build and ship software faster, and I run my own local AI hardware, so when I recommend something it is because I have used it, not because it is fashionable.
Contact
Quick question? Ask my AI assistant, at any hour. For your project, one email is enough: you get a reply from me, usually the same day, and if a call is needed I arrange one.
hello@cambyte.co.ukRoberto Pires Almeida · Cambyte · Cambridge, UK
