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Native iOS or Android: suited to platform-specific behaviour or deeper use of device capabilities; separate codebases may increase delivery and maintenance effort.
Custom App Development From Discovery To Launch
We help UK businesses turn a defined mobile-product need into a scoped iOS, Android or cross-platform application.
Discovery covers users, workflows, platform choices, integrations and release responsibilities before development begins.
Scope, delivery stages and support are agreed for the project; app-store approval, third-party fees and commercial results remain outside any guarantee.
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Who a custom app project suits
An app is most useful when a repeated mobile workflow needs device capabilities, account access or a focused experience that a website alone cannot provide.
- A business with a defined customer or staff task that people need to complete regularly on a phone or tablet.
- An organisation that needs secure sign-in, notifications, camera, location or another device feature within an agreed use case.
- A service that must connect to existing APIs, operational systems or a separately scoped backend.
- A validated product idea that can begin with a prioritised first release rather than an open-ended feature list.
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Choose the platform around the product
The recommendation follows the required experience, device features, team constraints and maintenance plan—not a default technology choice.
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Cross-platform: one shared application can serve iOS and Android where the feature set and chosen framework support it, while platform-specific work may still be required.
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Responsive web or progressive web approach: worth considering when installability and deep device access are less important than broad browser access.
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Discovery defines what will be built
A practical discovery stage converts the idea into decisions that design, development and testing can follow.
- Map target users, core tasks, permissions and the problem the first release must address.
- Prioritise screens and features, including what is deliberately left for a later phase.
- Agree data sources, API contracts, administrator needs, analytics and consent requirements.
- Record acceptance criteria, supported devices, review contacts, dependencies and a staged delivery plan.
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From interface to tested release
Delivery moves through reviewable stages. Timelines depend on scope, feedback, integrations, platform requirements and the readiness of client-supplied material.
- 1Prototype: review navigation, key screens and important states before full implementation.
- 2Build: implement the agreed application, backend or API connections and access controls within scope.
- 3Test: check core journeys, supported devices, permissions, error states and agreed acceptance criteria.
- 4Release preparation: assemble approved store information, builds and privacy material; Apple and Google make the final publishing decision.
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Responsibilities, support and useful measures
The proposal separates included delivery from third-party and ongoing work, then records how the released product will be reviewed.
- Web Landscape: deliver the agreed design and build, document handover items, fix accepted-scope defects and provide the support stated in the proposal.
- Client: supply accurate content, policies, accounts, timely approvals and access to required systems and app-store organisations.
- Separately scoped or client-paid items can include hosting, backend expansion, external services, store accounts, payment-provider charges, content production and later feature releases.
- Progress can be reviewed through stage acceptance, defect status, release readiness and—after launch—agreed product events such as completed tasks, retained use or support issues where tracking permits.
- Custom development creates an application around agreed requirements; Tajerly is a separate ecommerce-platform option and is not a substitute for every custom app use case.
