SMS, voice, WhatsApp and phone verification APIs.

Custom development for Twilio

Twilio

Messaging & Communication

3–6 weeks

Account SID, API key

REST

Twilio builds for mobile and web apps: phone sign-in codes, SMS alerts, masked calling between customers and providers, and WhatsApp messaging.

Scope a build

What we build

THE QUICK TAKE

Fixed scope · No hourly billing

Bolder Apps builds communication features on Twilio: one-time codes with Twilio Verify, SMS alerts, masked calls and texts between customers and providers, and WhatsApp Business messaging. About 1 in 10 of the app builds we scoped in 2026 use Twilio, most often for phone sign-in and marketplace privacy.

The kinds of things operators ask us to ship.

No fluff. These are real builds operators in the field actually need.

Verification

Phone Sign-In Codes

Twilio Verify one-time codes for sign-up, sign-in and changes to contact details.

Privacy

Masked Calling and Texting

Customers and providers call or text through a proxy number, so neither side sees the other's real phone number.

Alerts

SMS Notifications

Text alerts for bookings, dispatch, reminders and status changes, with opt-out handling.

Messaging

WhatsApp Business

Order updates and two-way support on WhatsApp for markets where it is the main channel.

Typical project range

$12K–$35K+

Fixed-scope. No hourly billing. We quote it upfront andwe ship it.

Typical timeline

3–6 weeks

Discovery in week one. First builds shipping by weekthree. Production ready inside the quarter.

Three circular progress bars showing 86%, 65%, and 40% completion with corresponding user and interaction icons inside each circle.

API Type

REST

Authentication

Account SID, API key

Documentation

twilio.com/docs

The conversations that bring buyers here.

Phone Sign-In

Our users do not want passwords. We need sign-in with a text code.

Protect Numbers

Drivers and customers need to call each other without sharing personal numbers.

Reach the Field

Our crews do not open apps on the job. We need texts that reach them.

WhatsApp First

Our customers live on WhatsApp, so updates need to go there.

Orange glowing orb behind vertical black bars creating a striped light and shadow pattern on a black background.

Recent work from our portfolio.

Minnect

A two-sided expert marketplace app where users get direct answers by message, video, or phone call, and experts set their own price.

App Store

Google Play

Minnect

Marketplace

Urban

A seamless booking app for scheduling trusted massage therapists with secure payments.

Urban

On-Demand

Clearcover

A simple car insurance app to manage policies, claims, and roadside assistance from your phone.

Clearcover

FinTech

More projects

Bolder Apps moved the project very smoothly and made the entire process easy from start to finish. They were professional, always quick to answer any questions we needed, and great to work with. The final result was delivered exactly as promised.

Len Swegart

Senior Corporate Relations Manager, American Cancer Society

Bolder Apps really took the time to understand what we were trying to achieve. They transformed our ideas into a user-friendly, polished product. The entire experience was smooth, and the end result was exactly what we were looking for.

Anna Haberfellner

Senior SDR, Rydoo

Bolder Apps did everything in great detail, especially their scoping process. Their design skills really stood out throughout the project, and they were able to create a thoughtful final product that brought our vision to life.

Steve Anavi

Senior Manager, Qonto

Thrilled to be working with Bolder Apps - AI Native Agency to bring GigPost to the production finish line! We're almost there and what fun it is to have these guys on our side. Project Manager William Cramer and Senior Developer Qudratillo Mirzakosimov have been the absolute best people to work with on this project!

GigPost

Just want to give a shout out to Qudratillo. He has been awesome to work with. Very responsive, professional and his work is high quality. You got a good one there!!! Thanks Q!!!

Barry O'Doherty

Owner, GigPost

All is good. Bekzod is a rock star. Everything looks amazing. Beyond expectations!!!

Troy

Trainerfly

What impressed me most about Bolder was their ability to truly understand the vision behind Producers Link

Carl Porter

Founder, Producers Link

The integration your team keeps asking for.

Fixed scope. Fixed price. Ships in weeks.

Build Bolder

Abstract vertical lines and gradient shapes in dark brown and bright orange tones.

Bold Answers to Bolder Questions.

Can't find what you're looking for? Get in touch with our team.

Do you build masked calling with Twilio?

Yes. We build proxy calling and texting for marketplaces and on-demand apps so customers and providers can talk without exposing their phone numbers.

What does Twilio cost to run?

Twilio bills per message, call minute and verification. We estimate your monthly usage cost by user tier during scoping, and recommend lower-cost alternatives where they fit.

Can you add Twilio to an existing app?

Yes. We add verification, SMS or calling to apps already in production and wire them to your existing user accounts.

Get in touch

Let's discuss your goals

Schedule a meeting via the form here and we’ll connect you directly with our director of product—no salespeople involved.

What happens next?

Book a discovery call

Discuss and strategize your goals

We prepare a proposal and review it collaboratively

Bolder Starts Here

Thank you! Your submission has been received!

Oops! Something went wrong while submitting the form.

Custom development for Twilio

The kinds of things operators ask us to ship.

The conversations that bring buyers here.

Recent work from our portfolio.

Minnect

Urban

Clearcover

Bolder Apps moved the project very smoothly and made the entire process easy from start to finish. They were professional, always quick to answer any questions we needed, and great to work with. The final result was delivered exactly as promised.

Bolder Apps really took the time to understand what we were trying to achieve. They transformed our ideas into a user-friendly, polished product. The entire experience was smooth, and the end result was exactly what we were looking for.

Bolder Apps did everything in great detail, especially their scoping process. Their design skills really stood out throughout the project, and they were able to create a thoughtful final product that brought our vision to life.

Just want to give a shout out to Qudratillo. He has been awesome to work with. Very responsive, professional and his work is high quality. You got a good one there!!! Thanks Q!!!

All is good. Bekzod is a rock star. Everything looks amazing. Beyond expectations!!!

What impressed me most about Bolder was their ability to truly understand the vision behind Producers Link

The integration your team keeps asking for.

Bold Answers to Bolder Questions.

Other tools we build with

Firebase

Supabase

Google Maps Platform

Stripe

Let's discuss your goals

What happens next?

Bolder Starts Here