CTO-led mobile app development in Sydney
Need a mobile app built, finished or fixed?
Need a mobile app built, finished or fixed?
Need a mobile app built, finished or fixed?
I'm Sam Halcrow, and I lead every app my team builds. We design, build and launch iOS and Android apps for your customers or your staff, no matter where you are in your build.
I'm Sam Halcrow, and I lead every app my team builds. We design, build and launch iOS and Android apps for your customers or your staff, no matter where you are in your build.
I'm Sam Halcrow, and I lead every app my team builds. We design, build and launch iOS and Android apps for your customers or your staff, no matter where you are in your build.
16+ yrs
16+ yrs
Leading technology
Leading technology
253
253
Companies I’ve worked with
Companies I’ve worked with
1M+
1M+
Engineering hours delivered
Engineering hours delivered
Your free CTO-led audit starts here
A review of your app idea, build or live app. Valued at $4,000, free here.
Starts with a 30-minute call with me. (It's not a sales pitch.)
Why you might need me
If you're asking one of these questions, I can help
If you're asking one of these questions, I can help
Before building
Before building
Scoping and costing your app
"What will it actually take to build?"
Scoping and costing your app
"What will it actually take to build?"
Apps for your staff
"Could an app replace our paper forms and spreadsheets?"
Apps for your staff
"Could an app replace our paper forms and spreadsheets?"
Quote reviews
"Is this quote fair, and what's missing?"
Quote reviews
"Is this quote fair, and what's missing?"
While building
While building
Getting a stalled build finished
"Why has my app been 'nearly done' for months?"
Getting a stalled build finished
"Why has my app been 'nearly done' for months?"
Taking over from another developer
"My developer has gone quiet. Who can pick this up?"
Taking over from another developer
"My developer has gone quiet. Who can pick this up?"
Code and quality reviews
"Is what's been built any good?"
Code and quality reviews
"Is what's been built any good?"
After launching
After launching
App rescue
"Why does my app keep crashing?"
App rescue
"Why does my app keep crashing?"
Ongoing support
"Who keeps it working when iOS or Android updates?"
Ongoing support
"Who keeps it working when iOS or Android updates?"
Rebuilding off no-code
"My no-code app has hit its limits. What now?"
Rebuilding off no-code
"My no-code app has hit its limits. What now?"
WHAT other APP DEVELOPERS DON'T OFFER
I'm a Fractional CTO, and I lead every app my team builds
I'm a Fractional CTO, and I lead every app my team builds
I make the technical decisions myself
I make the technical decisions myself
I make the technical decisions myself
Most apps go wrong in the planning, not the coding. As the CTO on your project, I make the key technical decisions before any code is written, so you don't pay to fix them later.
Most apps go wrong in the planning, not the coding. As the CTO on your project, I make the key technical decisions before any code is written, so you don't pay to fix them later.
I'll always be accountable for the result
I'll always be accountable for the result
I'll always be accountable for the result
You deal with me, not an account manager passing messages along. If something isn’t right, it’s mine to fix.
You deal with me, not an account manager passing messages along. If something isn’t right, it’s mine to fix.
They quote a project; I own an outcome
They quote a project; I own an outcome
They quote a project; I own an outcome
Before anything is built, we agree what your app has to do for your business. That's how I measure success; it's not about how many features were shipped.
Before anything is built, we agree what your app has to do for your business. That's how I measure success; it's not about how many features were shipped.
Everyone else will say yes, but I'll tell you what I'd do with my own money
Everyone else will say yes, but I'll tell you what I'd do with my own money
Everyone else will say yes, but I'll tell you what I'd do with my own money
Sometimes that's "don't build it". Sometimes it's "half now, the rest when customers ask". You'll always know what I really think.
Sometimes that's "don't build it". Sometimes it's "half now, the rest when customers ask". You'll always know what I really think.
CLIENTS
253 companies have trusted us with mobile app development
253 companies have trusted us with mobile app development
TESTIMONIALS
What our clients say
What our clients say
What our clients say
Angela Bevitt-Parr
National Marketing Manager
AWS Australia
Angela Bevitt-Parr
National Marketing Manager
AWS Australia
Tim Buric
Chief Technology Officer
Agilyx & MUNIvers
Tim Buric
Chief Technology Officer
Agilyx & MUNIvers
Tim Buric
Chief Technology Officer
Agilyx & MUNIvers
Kelvin Kenney
Chief Executive Officer
Bow Wow Meow
Kelvin Kenney
Chief Executive Officer
Bow Wow Meow
Kelvin Kenney
Chief Executive Officer
Bow Wow Meow
“Sam guided us through the design and development process in a way we wouldn’t be able to do on our own. We’re very happy to partner with him and his team.”
Thomas Roper
Engineer, Lendlease
“Sam has a keen understanding of our needs. His team's technical knowledge enables them to deploy solutions that continue to further our growth.”
Michael Kalucy
Managing Director, Workhouse
“Sam and his team operate as a trusted partner at every stage of delivery. They’re pivotal in bringing engineering maturity to coordinate and execute large, complex projects.”
Arun Prasad
Founder, AIWhispr
“We spotted a market gap, and Sam helped us seize it quickly. His team built a product that gave us real advantage.”
Michael Soukie
Founder, Scafflinq
“From the concept design meeting, Sam exceeded our expectations. He understood what our needs were, and his engineers worked quickly from brief to going live.”
Rouad El-Ayoubi
Managing Director, Alliance Project Group
“Sam took a concept and together with his team, turned it into a product we’re genuinely proud of. Their passion makes them a joy to work with.”
Trent Carney
Founder, MyCanary
“Sam guided us through the design and development process in a way we wouldn’t be able to do on our own. We’re very happy to partner with him and his team.”
Thomas Roper
Engineer, Lendlease
“From the concept design meeting, Sam exceeded our expectations. He understood what our needs were, and his engineers worked quickly from brief to going live.”
Rouad El-Ayoubi
Managing Director, Alliance Project Group
“We spotted a market gap, and Sam helped us seize it quickly. His team built a product that gave us real advantage.”
Michael Soukie
Founder, Scafflinq
“Sam and his team operate as a trusted partner at every stage of delivery. They’re pivotal in bringing engineering maturity to coordinate and execute large, complex projects.”
Arun Prasad
Founder, AIWhispr
“Sam has a keen understanding of our needs. His team's technical knowledge enables them to deploy solutions that continue to further our growth.”
Michael Kalucy
Managing Director, Workhouse
“Sam took a concept and together with his team, turned it into a product we’re genuinely proud of. Their passion makes them a joy to work with.”
Trent Carney
Founder, MyCanary
“Sam guided us through the design and development process in a way we wouldn’t be able to do on our own. We’re very happy to partner with him and his team.”
Thomas Roper
Engineer, Lendlease
“Sam and his team operate as a trusted partner at every stage of delivery. They’re pivotal in bringing engineering maturity to coordinate and execute large, complex projects.”
Arun Prasad
Founder, AIWhispr
“From the concept design meeting, Sam exceeded our expectations. He understood what our needs were, and his engineers worked quickly from brief to going live.”
Rouad El-Ayoubi
Managing Director, Alliance Project Group
“Sam has a keen understanding of our needs. His team's technical knowledge enables them to deploy solutions that continue to further our growth.”
Michael Kalucy
Managing Director, Workhouse
“We spotted a market gap, and Sam helped us seize it quickly. His team built a product that gave us real advantage.”
Michael Soukie
Founder, Scafflinq
“Sam took a concept and together with his team, turned it into a product we’re genuinely proud of. Their passion makes them a joy to work with.”
Trent Carney
Founder, MyCanary
Case studies
Every mobile app starts somewhere different
Every mobile app starts somewhere different
Mainland Civil
WORKFORCE APP PROJECT · PROJECT RECOVERY
We took over Mainland Civil’s driver app from an offshore developer in 5 days, patched its security risks and moved it into an account they own
We took over Mainland Civil’s driver app from an offshore developer in 5 days, patched its security risks and moved it into an account they own
We took over Mainland Civil’s driver app from an offshore developer in 5 days, patched its security risks and moved it into an account they own
Acciona
WORKFORCE APP PROJECT · ONGOING SUPPORT
Acciona’s Westconnex field crews became 70% more productive with the tunnel mapping app we built and supported for 7 years
Acciona’s Westconnex field crews became 70% more productive with the tunnel mapping app we built and supported for 7 years
Acciona’s Westconnex field crews became 70% more productive with the tunnel mapping app we built and supported for 7 years
The Banktech Group
Customer app project · New build
The cashless wallet app we built for Banktech was adopted by 47% of venue patrons within 6 months, beating a 40% target
The cashless wallet app we built for Banktech was adopted by 47% of venue patrons within 6 months, beating a 40% target
The cashless wallet app we built for Banktech was adopted by 47% of venue patrons within 6 months, beating a 40% target
The free audit
Here's what you get in the audit
Here's what you get in the audit
I review what you have and write my recommendations. It's normally $4,000, but I'm offering it for free.
I review what you have and write my recommendations. It's normally $4,000, but I'm offering it for free.
I review what you have and write my recommendations. It's normally $4,000, but I'm offering it for free.
Before building
For a customer or staff app that's still an idea, a feature list or a quote.
For a customer or staff app that's still an idea, a feature list or a quote.
Review of your idea and feature list
What version one should include
A cost range for the build
A realistic timeline
Native or cross-platform recommendation
Review of any quotes you've received
While building
For a customer or staff app that's stalled, over budget or hard to judge.
For a customer or staff app that's stalled, over budget or hard to judge.
Review of the code built so far
Review of the plan and scope
Whether your developers can finish it
Why it's stalled or over budget
What finishing will take, and cost
Risks to fix before launch
After launching
For a customer or staff app that's crashing, slow or hard to change.
For a customer or staff app that's crashing, slow or hard to change.
Review of the code and how it's built
Hosting and security check
The cause of crashes and bad reviews
Review of how updates are released
A priority list of fixes
What fixing and running it will cost
How the audit works
1
Start with a 30-minute call
Start with a 30-minute call
Start with a 30-minute call
Tell me about your idea or your app, and what you need to know. I'll ask a few questions so I know what to look at.
Tell me about your idea or your app, and what you need to know. I'll ask a few questions so I know what to look at.
Tell me about your idea or your app, and what you need to know. I'll ask a few questions so I know what to look at.
2
I conduct the audit
I conduct the audit
I conduct the audit
I review what you have, whether that's your plans and quotes, the code, or the app that's live.
I review what you have, whether that's your plans and quotes, the code, or the app that's live.
I review what you have, whether that's your plans and quotes, the code, or the app that's live.
3
You get my recommendations
You get my recommendations
You get my recommendations
You get the written document. They're yours to keep, whether or not you work with me.
You get the written document. They're yours to keep, whether or not you work with me.
You get the written document. They're yours to keep, whether or not you work with me.
If you want more than the audit
I can lead it, and my team can build it
I can lead it, and my team can build it
After the audit, what you do next is up to you. If you'd like to work together, I'll lead the project as your CTO and my engineering team will do the work. Here's what that looks like.
After the audit, what you do next is up to you. If you'd like to work together, I'll lead the project as your CTO and my engineering team will do the work. Here's what that looks like.
After the audit, what you do next is up to you. If you'd like to work together, I'll lead the project as your CTO and my engineering team will do the work. Here's what that looks like.
Before we build
We agree on what the app needs to achieve
More downloads, more repeat orders, fewer support calls, hours saved for your team. We set the goal first and measure the build against it.
More downloads, more repeat orders, fewer support calls, hours saved for your team. We set the goal first and measure the build against it.
Leadership
I make the technical decisions for you
Native or cross-platform, which cloud provider, whether AI belongs in it. I decide these before any code is written and explain why, so you're never confused.
Native or cross-platform, which cloud provider, whether AI belongs in it. I decide these before any code is written and explain why, so you're never confused.
During the build
You always know where it's up to
You deal directly with me and the developers working on your app. Daily check-ins mean there are no surprises. Ever.
You deal directly with me and the developers working on your app. Daily check-ins mean there are no surprises. Ever.
Launch
We get it live
My team tests your app with real users and takes it through Apple and Google review until it's live in both stores.
My team tests your app with real users and takes it through Apple and Google review until it's live in both stores.
After launch
We keep it working
My team keeps your app working through every iOS and Android update and adds features as your business grows.
My team keeps your app working through every iOS and Android update and adds features as your business grows.
Before you book
Frequently asked questions
Frequently asked questions
What do I get from the free audit?
It starts with a 30-minute call with me. You get an experienced CTO's opinion on your idea or app and a plan for what to do first, free of charge. There's no obligation and no sales pitch.