List recurring technical services
Hosting, databases, storage, email, messaging, maps and monitoring can all introduce recurring costs. Some charges depend on traffic or usage. Identify the account owner, pricing model and spending alerts for each service. Consider how the bill changes if users upload large files or use a paid integration frequently.
Plan release and support work
Store administration, platform updates, security work and bug fixing require time after launch. Include support processes and responsibility for incidents. Privacy and data-management requirements also need implementation and review. Ask suppliers which activities are included in the initial quote and which are covered by a separate maintenance arrangement.
Compare total ownership
Estimate a realistic operating scenario alongside the build cost. Avoid assuming that a free service tier or a one-off setup eliminates future expense. Document export and migration options so that a provider change remains manageable. Keep the first release focused on the features that justify these ongoing commitments.