Home Top Developers Blog Write For Us Write a Review Sign In Create Account Request a Quote

Calvium

Write a Review Claim this Company
4.2/5 (6 reviews)
+441172262000 hello@calvium.com Visit Website

About Calvium

It is specialists in designing & developing best mobile apps They help their clients to grow in a mobile world. From developing app solutions that enhance operational performance. They work in partnership with their clients, usually employing a co-creation way, and enjoy making and maintaining strong relationships with them.

Last updated May 13, 2026

Services

Mobile App Development UI-UX Design Enterprise App Development

Industries Served

Gaming & Gambling Automotive Media & Entertainment Government & Public Sector Information Technology

Calvium Reviews

Write a Review

Multiplayer infrastructure that held through a launch-day traffic spike we had not fully anticipated

Declan Hartley / Chief Digital Officer - Southern Cross Technology
Verified
Jan 30, 2026

Project summary: Digital service standards required all citizen-facing applications to meet accessibility and performance benchmarks that our inherited systems failed. Remediation was not viable — we needed a replacement.

What made the most difference in practice was the quality of the engineering judgment on this team. Not the ability to execute a specification — that is a baseline expectation. The ability to recognise when a specification was suboptimal, explain why, propose an alternative, and support the client in making a decision about it. That consultative dimension elevated the output beyond what the brief described and resulted in a product that is more fit for purpose than the one we had originally specified.

PROS

Production system that has performed as specified since go-live without remediation work, documentation thorough enough to support internal maintenance, knowledge transfer that left our team genuinely capable

CONS

Time zone coordination required some deliberate overlap management from both sides in the first couple of sprints, after which we had an efficient async rhythm that worked for the whole project

4.0
Overall
4.5
Quality
4.5
Schedule
4.0
Cost
4.0
Communication
Project TypeGame Development
IndustryGovernment & Public Sector
Project Cost$500,000+
DurationAug 2025 – Dec 2025

Questions & Answers

Please describe your company, your role, and the industry you operate in.
I lead technology at Southern Cross Technology, a growth-stage Government & Public Sector business based in Sydney, Australia. As Chief Digital Officer my remit spans product engineering, platform operations, and strategic vendor partnerships. We had reached an inflection point where our internal capacity was not sufficient to execute our roadmap at the pace our market required.
What specific problem or business challenge led you to hire this company?
Our platform had been maintained by a previous vendor for three years and the accumulated technical debt had reached a point where delivery velocity had dropped to a fraction of what it should have been. We needed fresh engineering expertise and a structured plan to address the underlying issues.
What services did the company provide for your project?
Primarily Game Development, with adjacent work in solution architecture and quality assurance. They were responsible for the full build from requirements through to go-live, including integration with four existing systems in our technology landscape. The breadth they covered without requiring additional vendors was commercially and logistically valuable.
Why did you choose this company over other providers you considered?
We ran a structured shortlisting process across five vendors. The technical evaluation eliminated two immediately. Of the remaining three, this team's proposal was differentiated by the specificity of their Game Development approach and the evidence base they provided — reference projects in Government & Public Sector contexts, not generic case studies. The reference calls confirmed a track record that the proposal had described accurately.
How clearly did the company understand your requirements and business goals?
Thoroughly and precisely. The requirements document they produced was detailed enough that our QA team used it directly to write acceptance criteria. Every user story had a defined business objective attached. Nothing was left to interpretation. That discipline in the requirements phase paid dividends throughout development and testing.
How was your overall experience with their communication and project management?
Communication was proactive, timely, and appropriately calibrated. Technical updates for the engineering audience, executive summaries for the steering group, risk flags with proposed mitigations rather than just problem statements. The fortnightly sprint reviews gave our stakeholders visibility without requiring them to attend every working session.
Did the company deliver the project on time and within your expected budget?
Yes. I had privately built a contingency expectation into my planning given the project complexity and the number of integrations involved. None of that contingency was needed. The delivery landed on the agreed date and the final invoice matched the approved budget to within a fraction of a percent. That outcome is rarer than the industry acknowledges.
What tangible results or business impact have you seen since the project was completed?
Quantifying the impact precisely is complicated by other variables in our business, but the metrics we can attribute directly to the Game Development work are meaningful: session duration up, conversion rate up, error rate down, and our NPS for the digital touchpoint has improved by eleven points. Our account managers report that the new capability is coming up positively in client conversations.
What did you like most about working with this company?
The willingness to be direct. When our requirements were unclear they said so. When our priorities were contradictory they explained why. When a technical approach we had assumed was the right one turned out to have significant downsides, they told us before we had committed to it. That kind of intellectual honesty is what I look for in a long-term technology partner.
Would you recommend this company to others, and would you work with them again?
Yes, without reservation. I have already made two direct referrals within my Government & Public Sector network — in both cases to peers facing Game Development challenges similar to ours. I gave those referrals with confidence because I knew the experience I described was reproducible, not the result of exceptional circumstances on our engagement.

Company Info

Founded 2009
Employees 10 - 49
Hourly Rate N/A
Client Rating 4.2/5 (6 reviews)

Rating Breakdown

Quality
4.1
Schedule
4.0
Cost
4.1
Communication
4.2

FAQs

What should I expect to pay to work with Calvium?
What Calvium charges comes down to a handful of variables — how complex the project is, the number of development hours involved, the tech stack required, team size, and which engagement model you pick. Based on available data, Calvium's typical hourly rate is around N/A, with an average project cost of $5000000+.
What's the easiest way to actually get in touch with Calvium?
Most businesses reach Calvium through its website, a direct email, or a contact form — any of which works for discussing what you need, booking an initial conversation, or asking for a rough estimate. For context, it has served clients in United-kingdom, and it reports a team size of 10 - 49 professionals.
What happens with Calvium after the project actually launches?
Like most established software teams, Calvium typically sticks around post-launch for ongoing maintenance — bug fixes, performance tuning, security patching, new feature work, and general technical support. For context, it has served clients in United-kingdom, and its typical hourly rate is around N/A.
Would Calvium be a good fit for an early-stage startup?
Generally, yes — companies like Calvium tend to work well with startups because of what they typically offer: MVP builds, product strategy input, architecture that can scale later, and dedicated teams that keep costs manageable while still moving fast. For context, it has experience across industries such as Media & Entertainment, Gaming & Gambling, Automotive, Government & Public Sector and Information Technology, and its listed capabilities span Enterprise App Development, Mobile App Development and UI-UX Design.
What's actually in Calvium's technical toolkit?
The exact stack shifts by project, but Calvium commonly works across things like React, Angular, Vue.js, Node.js, Python, .NET, Java, PHP, Flutter, React Native, native iOS and Android, and cloud platforms like AWS and Azure. For context, it has experience across industries such as Media & Entertainment, Gaming & Gambling, Automotive, Government & Public Sector and Information Technology, and its typical hourly rate is around N/A.
Does Calvium actually build with AI, or just talk about it?
Plenty of modern software teams, Calvium included, now build real AI and machine learning features — chatbots, predictive models, computer vision, and automation that goes beyond simple rule-based scripts. For context, it has experience across industries such as Media & Entertainment, Gaming & Gambling, Automotive, Government & Public Sector and Information Technology, and its average project cost is reported at $5000000+.
Does Calvium only work locally, or take on clients elsewhere too?
Calvium isn't necessarily limited to one region and may take on clients across several countries, including United-kingdom, depending on market demand and business partnerships.
Can Calvium take on an old, outdated system rather than starting from scratch?
Modernizing legacy software is usually within scope for a firm like Calvium — re-platforming, refactoring old code, and moving things onto current frameworks or cloud infrastructure without necessarily rebuilding everything from zero. For context, it has served clients in United-kingdom, and it has experience across industries such as Media & Entertainment, Gaming & Gambling, Automotive, Government & Public Sector and Information Technology.
Has Calvium actually shipped a SaaS product before?
It's a common line of work for a company like Calvium — multi-tenant architecture, subscription billing hooked up properly, and cloud-native deployment built for a product meant to scale as a service rather than a one-off build. For context, its listed capabilities span Enterprise App Development, Mobile App Development and UI-UX Design, and it reports a team size of 10 - 49 professionals.
How do I actually get a real proposal out of Calvium instead of a generic reply?
The most reliable route is giving Calvium a clear, specific brief up front — through their website form, a direct email, or a call — since a vague ask tends to get a vague answer back, while a concrete one usually gets a proper estimate. For context, its listed capabilities span Enterprise App Development, Mobile App Development and UI-UX Design, and its typical hourly rate is around N/A.

Similar Companies

Nearby Companies