RomeroDevProduct engineering
Native iOS apps · Software on the App Store

iOS apps for real problems. Built to keep evolving.

Ten native products across health, privacy, productivity and finance, designed and maintained end to end.

9 apps are available · 1 in preparation.
VitalsBud app preview

Pet Health

VitalsBud

A real product preview

RomeroDev apps

Native · App Store

Apple

Native experience

Status

9 published apps

10owned products
33VitalsPath languages
9xSalesforce certifications
10+years of experience

Seasonal special · Halloween 2026

Ten apps. Ten events. One season.

Explore the Halloween collection created for the entire RomeroDev catalog.

Explore the apps
Selected work

Not concepts. Products built to be used.

Each product combines research, native experience, automation and a technical foundation designed to evolve after launch, whether it is available today or being prepared.

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VitalsBud

Pet Health

New

Pet health records, routines, and preventive care.

Organize your pet’s care and health history, then prepare a PDF summary for the next veterinary visit.

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Kinsera

Lifestyle

Newv1.1.2

Clear, private, family-first digital limits.

Set app, category, and website limits, and read the Child Mode guide for setup, requirements, and iOS limits.

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SnapInbox: Action Inbox

Productivity

Newv1.1.1

Turn screenshots into verified next steps.

Import a screenshot or PDF, review what SnapInbox finds, and turn it into a useful next step without sending your content to the cloud.

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SchoolSnap

Family Productivity

Newv1.1.1

Turn every school notice into a clear family plan.

Capture school notices, review extraction, and organize dates, tasks, and actions for each family member with on-device processing.

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VitalsPath

Medical

5.0v2.3.4

Family health, medications, and appointments in a single private space.

Track up to two medications for free and organize symptoms, vitals, family profiles, and appointments in one place.

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StreakReps

Health & Fitness

5.0v1.1.5

Workout tracking for consistent strength progress.

Plan workouts, log every set from iPhone or Apple Watch and understand strength, recovery, volume and consistency.

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MaskID

Productivity

5.0v1.1.2

Protect your identity before sharing a document.

Hide unnecessary personal data in general or identity documents and share only what each process requires.

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UpLedger

Finance

5.0v1.1.2

Clear, private finances under your control.

Track transactions, organize accounts and budgets, review your net worth, and plan ahead with private forecasts.

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Renuvia

Productivity

5.0v1.1.1

Turn every renewal into a dossier ready for action.

A private radar that turns renewal dates into dossiers with readiness, requirements, and history.

Culmina
In preparation

Culmina

Turn complex projects into completed outcomes.

iOSiPadOS
View product page
Capabilities

A complete view prevents fragmented products.

01

Native iOS product

Swift, SwiftUI, Watch, widgets, Live Activities, HealthKit and release.

02

Salesforce that works

Processes, Flows, integrations and data connected to real operations.

03

UX & product design

Information architecture, prototyping, interaction design and accessibility.

04

Backend and automation

Supabase, Firebase, APIs, authentication, events and scheduled jobs.

Working system

From an unclear need to a product you can measure.

01

Understand

Users, business, constraints and success signal.

02

Decide

What to build now, automate and deliberately leave out.

03

Prototype

Real flows before committing architecture and time.

04

Build

Product, data, integrations, quality and observability.

05

Launch and learn

Release, support, metrics and evidence-led iteration.

Product judgement

Less presentation theatre. More trust signals.

Speed is designed

Performance, progressive loading and immediate feedback are part of UX.

Explainable privacy

Permissions, data and automation are communicated without ambiguity.

Evolution, not handoff

Architecture accounts for support, metrics, learning and future versions.

SwiftSwiftUISalesforceSupabaseCloudKitStoreKitHealthKitApp Store Connect
Lester Romero Bernardo

Lester Romero Bernardo

iOS Developer & Salesforce Consultant

Certifications

9x Salesforce

Location

Valencia, España

Technical direction

One accountable owner from strategy to delivery.

I’m Lester Romero Bernardo, a software engineer and consultant based in Valencia. I combine Salesforce, data architecture and Apple development to reduce handoffs, ambiguity and product debt.

Direct accountability
Technical and commercial judgement
No-handoff communication
Documentation and continuity
See experience and certifications
Next step

Tell me what needs to change in your product or operation.

You will get a direct response with concrete questions, early risks and the best next step. No generic sales deck.

Prefer direct email?

romerodev.app@gmail.com

Questions before we start

Do you only take complete builds?+

No. I can own an end-to-end product or step into a critical phase: UX audit, architecture, Salesforce automation, stabilisation or release readiness.

How do you estimate scope, time and cost?+

I first separate goals, risks and unknowns, then define a measurable first delivery with clear acceptance criteria.

Can you continue an existing product?+

Yes. I start with a technical and UX audit to preserve what works, locate debt and sequence improvements without an unnecessary rewrite.

Do you cover backend, analytics and release?+

Yes. Work can include data models, authentication, automation, APIs, privacy, analytics, App Store Connect, initial ASO and post-launch support.

What happens next

I will personally review your enquiry and reply within 1–2 working days with questions, early risks and a concrete next step.

I will use these details only to answer your enquiry. They are not added to marketing lists.