endorsedCompleted

React Native Messaging App Development (MVP)

Services Covered:

Mobile Application Development

Industry

Business Consulting & Services

Duration

2 months

Budget

10K - 49K

Start Date

1 June 2018

Team Size

1-5 Employees

Engagement Model

Offshore

Project Capability Score (PCS)

67/100

Good

Project Capability Score (PCS) estimates how capable BrainMobi is of successfully delivering a project like this, based on its past experience, track record, and ability to handle similar work. Learn more about PCS

Client

Rely

Spain

Project Summary

BrainMobi was hired to develop a React Native instant messaging MVP for Android, iOS, and web from an existing prototype. The client provided high-resolution designs and requested a three-month agile engagement with biweekly deliveries. The engagement missed kickoff and milestone deadlines, produced unstable code with many bugs, and failed user acceptance tests, resulting in the client terminating the project before completion.

Key Challenges

Turn an existing React Native prototype into a secure, encrypted instant messaging app
Implement acknowledgment messages and a "typing" indicator
Support sending and receiving links, images, videos, voice messages, and documents
Deliver an MVP to market within a three-month timeline with biweekly iterative deliveries

Project Deliverables

Android app
iOS app
Web/intranet app
Backend (minimal backend)
Milestone plan and iterative biweekly code deliveries

Project Solution

The vendor committed to deliver the prototype as a three-month agile engagement with iterative, biweekly code deliveries. BrainMobi agreed to convert provided high-resolution prototypes and mockups into Android and iOS apps and a web/intranet version, plus a minimal backend, and to provide a milestone plan. The vendor delayed kickoff and milestone planning, missed biweekly deliveries, and proposed revised deadlines after the client had already decided to terminate the engagement.

Project Outcome

The project was poorly planned and terminated by the client before completion
Not a single line of code for the chat function had been written by August
Milestones were delivered late (first three delivered together more than two months after start)
The delivered code was buggy, unstable, and failed user acceptance tests

Platforms

Mobile
Web

Tech Stack

React Native

Client Endorsement

Overall Review Rating

Timeliness

Cost Rating

Willing to Refer

Quality of Deliverables

“After agreeing to a three-month contract with biweekly milestones, BrainMobi failed to deliver on schedule. The code presented many errors and failed simple user acceptance tests. The development team was polite, but unresponsive to questions and inattentive to concerns.”
Anonymous
CEO, Rely at Rely
Date: 08/20/2026