iOS & Android Development

Business
App Dev

15+ years building mobile apps for Sky, HSBC, MoneySuperMarket and more. From your design brief to release on both app stores — or senior hands for your existing team.

iOS Android Swift Unity
View Our Work →
abdev.co.uk
Bad Bit Games Studio

Free Games
& Apps

Five free apps from Bad Bit Games: neon space survival, jelly-candy puzzles, bedtime sounds, AI stories and a mind reader. Tap an icon to download it.

See screenshots & details →

Projects & Consultancy

Abdev
15+
Years in mobile
50+
Apps shipped
100+
Largest dev team worked in
6
Major brand clients

A snapshot of high-profile projects we've contributed to — from small focused pods to teams of 100+.

Sky News & Sky Sports
iOSSwift100+ Dev Team

High-traffic streaming and live sports apps delivering real-time content to millions of UK viewers daily.

Client: Sky TV
First Direct Banking App
iOSSwiftSwiftUI

Award-winning banking app. Built within an agile pod of 7, focused on security, accessibility, and seamless UX.

Client: HSBC
MoneySuperMarket Go
iOSSwift50+ Dev Team

Consumer price-comparison app helping millions save on insurance, energy, and financial products.

Client: MoneySuperMarket
RentalCars
iOSSwift8+ Dev Team

Global car hire booking app — integrating complex search, real-time availability, and payment flows into a clean mobile journey.

Client: RentalCars.com
Music Magpie
iOSSwift5+ Dev Team

Re-commerce app with barcode scanning to instantly sell CDs, games & tech — fast, clean, and intuitive.

Client: Music Magpie
AstraZeneca App
iOSSwiftHealthcare

Internal enterprise app supporting clinical and commercial operations, built within a focused pod with strict compliance standards.

Client: Exco In Touch for AstraZeneca

We've also worked with Sony, BBC, and more across a wide range of sectors and team sizes.

Company names and logos shown above identify apps and programmes we have contributed to, in some cases through agencies or as part of wider delivery teams. All marks are the property of their respective owners. Their use here does not imply endorsement, partnership, or a current client relationship.

Two Ways To Work With Us

Hand the whole build over, or add senior mobile capability to a team you already have. Both on iOS and Android.

📦

Your app, built and shipped

You have a design brief and a deadline. We take it from there — full-stack development, iOS and Android, through testing and App Store and Google Play submission to release. No need to hand us a team, a process or a project manager: you get a finished app and the source code that made it.

Design brief in, released app out

🤝

Extra capacity for your team

You already have a product team and need experienced hands on the mobile side. We work the way you work — your stack, your process, your board — covering architecture, code review, CI/CD and release management. Comfortable in regulated and compliance-heavy environments.

Short and long engagements · day rate on application

Free, no-obligation estimate

Send over what you have and you'll get an honest estimate of the days involved, and what that costs, within two working days. If it isn't a good fit, we'll say so and tell you what would be.

Useful to include, if you have it:

  • A design brief, wireframes or rough sketches — even napkin level
  • Roughly how many screens you think it needs
  • Whether it needs a login, payments, or a backend
  • iOS, Android, or both
  • The date it has to exist by, and the budget you're working to

Don't have all that? Send a paragraph describing the idea. That's genuinely enough to start.

Get your free estimate →

How pricing works: we estimate the days the work will take, agree that estimate with you up front, and bill at a day rate against it. You see the reasoning, not just a number — and if something lands faster than estimated, you pay for the days it actually took.

Every project runs the same four stages, so you always know what happens next.

1️⃣

Scope call

A conversation about what the app has to do and when it has to exist. Free, no obligation, usually 30 minutes.

2️⃣

Written estimate

Within two working days: the days the work will take, what drives that number, the timeline, and what is and isn't included.

3️⃣

Build & review

You get a working build on your own phone partway through — not a slide deck — so feedback lands while it's still cheap.

4️⃣

Launch & handover

We submit to both stores, handle review, and hand over the code and accounts with a bug-fix window after release.

What Sets Us Apart

Fifteen years of shipping real apps to real deadlines — and quality you can measure.

🏆

Proven Delivery

50+ apps shipped for household names. We know what quality looks like — we've been delivering it for 15 years.

⚡

Full Stack, Brief To Store

Design brief in, released app out — iOS and Android, backend integration, testing, and both store submissions handled end to end. One person accountable for the whole chain.

🤝

However You Need Us

Take the whole build off your hands, or slot into a team of 100 and adapt to your process. Both are business as usual here.

🎯

Tailored Solutions

We invest time understanding your users and constraints before writing a line of code. The result? Software that actually fits.

Tech Stack

We stay current so you don't have to.

SwiftSwiftUIUIKit Objective-CCombineAsync/Await Core DataUnityC# AndroidOpenAI APIClaude API AI IntegrationREST APIsGraphQL FirebaseXCTestCI/CD App Store ConnectGoogle Play ConsoleTestFlight Agile / ScrumSpriteKitGameKit
Bad Bit Games

Our in-house games studio. 9 games & apps published on the App Store and Google Play — every one free to download.

Five Apps. One Tap To Get Them.

Swipe through how each one looks right now, then tap to download it free on the App Store or Google Play. All five were updated this month.

Astro-X: Space Survival app icon

Astro-X: Space Survival

Neon bullet-hell that moves to the music
Get
Astro-X gameplay: one thumb, no mercy Meet The Plotter, the antagonist who announces every wave in Astro-X Astro-X Daily Challenge: a new run every day Astro-X Star Map: 100 waves, one ship Dodging a swarm of UFOs in Astro-X
FREENEW: THE HANGARArcade

One finger. One ship. 100 waves, every one arriving on the beat.

Asteroids, comets, mines, lasers and motherships pulse to the soundtrack. An antagonist called The Plotter announces each wave before it lands, grades how you flew the last one, and remembers the one that keeps killing you.

  • 100 hand-tuned waves across 23 hazard families
  • Classic, Marathon and a fresh 60-second Daily Challenge every day, with global leaderboards
  • New: stardust and the Hangar. Collect it every run, spend it on boosts and permanent upgrades, chase three daily missions
  • One-touch controls: five seconds to learn, a long time to master. Plays offline, in seven languages
Download on the App Store Get it on Google Play
Sugar Cubes: Block Puzzle app icon

Sugar Cubes: Block Puzzle

Rotate your blocks and take control
Get
Sugar Cubes: a triple clear with confetti and jelly-candy blocks Sugar Cubes: rotate each piece to fit Sugar Cubes Daily Puzzle with your next pieces and hints Sugar Cubes World League leaderboard Sugar Cubes: chase big combos Sugar Cubes colour-blind friendly candy shapes
FREENEW LOOKPuzzle

The block puzzle where you can rotate the pieces, now with a sweeter look.

Tap a block to turn it, drag it into place, and clear rows and columns to set off chain-reaction combo blasts. Every block is now a sugar-coated jelly candy.

  • Rotate every piece: less luck, more planning, endless ways to set up a combo
  • A fresh Daily Puzzle with a monthly streak calendar
  • Climb the World Leagues from the new Ranks tab
  • Colour-blind friendly candy shapes and a Reduce Motion setting. 100% offline, no time limits
Download on the App Store Get it on Google Play
Sleep Like a Baby app icon

Sleep Like a Baby

White noise, sleep sounds & bedtime stories
Get
Sleep Like a Baby home screen: tonight's sounds in one tap Sleep Like a Baby bedtime story on any topic Mixing sleep sounds with a gentle timer 47 soothing sleep sounds including binaural beats Sleep tracker with your sleep score and trends Sleep calculator: wake up between sleep cycles
FREEREDESIGNED★ 4.5 on the App Store

Fall asleep in minutes with soothing sounds and a calm story read aloud.

Can't switch your brain off? Baby won't settle? Helping restless minds (and restless babies) sleep since 2017, now completely redesigned.

  • 47 soundscapes: mix any sounds together, set a timer and let them fade out softly
  • Bedtime stories on any topic, written for you and read aloud over your sounds
  • See how you really slept: a sleep score, and a calculator that times bedtime to your sleep cycles
  • 23 sounds free for good. No sign-up
Download on the App Store Get it on Google Play
AI Adventure: Your Story RPG app icon

AI Adventure: Your Story RPG

Infinite AI stories & roleplay
Get
AI Adventure: any story you can imagine Say what you do in your own words in AI Adventure Every choice changes the story in AI Adventure Talk to any character and they answer in AI Adventure AI Adventure: a film, a book, a game or a person
FREERPG

Think of any world. You're standing in it a few seconds later.

Type a theme (a dragon-haunted kingdom, a rain-soaked Mars colony, the novel you never wrote) and AI Adventure builds it around you: the place, the people, the plot, and choices that genuinely change what happens next.

  • Talk to anyone: tap a character's name and they answer in character
  • Write your own move, or take one of the choices offered
  • See it and hear it: generate AI artwork of the scene, or have the story read aloud
  • Up to 12 stories running at once, in 10 languages
Download on the App Store Get it on Google Play
Mind Reader: Mystic Maven app icon

Mind Reader: Mystic Maven

Can she read your mind?
Get
Mystic Maven: can she read your mind? Think of anything and answer Yes or No in Mystic Maven Mystic Maven's AI asks clever questions Watch Maven think it through live Mystic Maven guesses it in one
FREENEW: YOUR LANGUAGEEntertainment

Think of anyone or anything. Maven asks Yes/No questions until she guesses it.

Celebrities, pets, movies, foods, or anything you can imagine: no thought is off-limits. The classic game of 20 Questions, turned into mind-reading magic.

  • Just answer Yes, No or Don't know. That's all it takes
  • Solo or party fun: challenge yourself or play with friends
  • Free questions every day, and Maven tells you when today's are ready
  • Speaks your language: she reads her questions aloud in your phone's own voice
Download on the App Store Get it on Google Play

Free to download. Some apps offer optional in-app purchases and show ads. Screenshots are from the current App Store listings.

More from Bad Bit Games

FREE
Ding Dong Delivery: Pizza Run
Retro Arcade Runner
Arcade

Paperboy grew up and now delivers pizza! Dodge traffic, outrun zombies, and unlock 25+ crazy vehicles — tanks, boats, police cruisers and more. One-thumb controls, endless mayhem.

Download on the App Store Get it on Google Play
FREE
Ziggy Road
ZigZag Traffic Racing
Racing

Zig zag your way along the world's craziest streets. One-touch controls, endless gameplay, and three bonus modes — Night Rider, Carnage, and Zombie! All vehicles unlocked free.

Download on the App Store Get it on Google Play
📱
More by Bad Bit Games

Golf Ball Finder · Golf Caddie · IF Interactive Fiction · Ziggy Kids Racing · Sugar Cubes SMASH

View all free apps →

One Company,
Two Passions

Abdev — short for Abson Developments Ltd — is a UK-based mobile studio with over 15 years building for iOS and Android. We do two things: we deliver professional, high-quality app development for some of the UK's biggest businesses; and we create our own original games under the Bad Bit Games label.

Whether that's helping a Sky News journalist break a story, letting a First Direct customer check their balance, or putting a pizza-delivery runner in a 10-year-old's hands — every line of code is written with the same care.

Get in touch →
🍎

Mobile Since Day One

From the original iPhone SDK to Vision Pro, and shipping on Google Play alongside it — we've been here from the start.

👤

You Deal With The Developer

Deliberately small. The person who quotes your project is the person who builds it — no account managers, no handoffs.

🏗️

Enterprise & Scale

Experienced in large agile teams, complex pipelines, and compliance-heavy environments.

🎮

Game Developers Too

Our Bad Bit Games titles prove we understand what makes users come back — fun, polish, and flow.

🇬🇧

UK-Based

Clear communication, compatible time zones, no surprises.

The Practical Detail

The answers your procurement, finance or legal team will want before we start work.

🏛️

UK Limited Company

Abson Developments Ltd, registered in England & Wales. VAT registered.

🛡️

Insured

Professional indemnity and public liability cover in place. Certificates supplied on request.

🔒

GDPR & Data Handling

UK GDPR compliant, with data processing agreements and UK/EU data residency.

♿

Accessibility

Built to WCAG 2.2 AA principles, including the public sector requirements universities work to.

🔑

You Own The IP

On final payment, source code, assets and store listings transfer to you. No lock-in, no annual renewal.

📄

Clear Payment Terms

Staged against delivery milestones, invoiced from a UK company. Purchase orders welcome.

Start a Conversation

Tell us what you're planning — even a paragraph is enough. You'll get a straight answer on whether we're the right fit, and a free written estimate within two working days.

Send us an email

We typically respond within one business day.

info@iphonegamesapps.com

Abson Developments Ltd · Registered in England & Wales