Amela
VitaPulse Inc. — New Platform Launch Story
ℹ︎For confidentiality, company names, project names, and system images have been replaced with pseudonyms and mockups.

A health app to measure, record, and keep going —In-house from scratch.

VitaPulse is a healthcare / diet-support app that syncs with a BLE smart body-composition scale. Just measure, and weight and body fat are recorded automatically, all managed on one screen alongside meals and exercise.

Device integration, dual-OS support, unified records, retention support ─ the story of launching a new platform: a product meeting all four axes a health app needs at once, built in-house from scratch in 8 months.

Supported OS
iOS / Android
Single codebase (RN)
Device integration
BLE auto
Measure and it's recorded
Record
Unify
Weight, meals, exercise
Sync
Google Fit
Health data integration
VitaPulseBLE connection
73%
Weight
62.4kg
P
72g
F
38g
C
180g
01
CLIENT
About the client

"VitaPulse," one of the country's leading names in building healthy habits.

VitaPulse Inc. runs a health-tech business that combines a BLE smart body-composition scale with a dedicated app to help anyone build healthy habits they can stick with.

Just "measure" with the device and data is recorded automatically, then visualized alongside meals and exercise ─ Amela partnered as the team building that experience from scratch in-house, in an app supporting both iOS and Android.

Supported OS
2
Recording domain
4
Device integration
BLE
BUSINESS FLOW — How It Works
STEP 01
Measure with the device
Measure weight and body fat with a BLE body-composition scale
STEP 02
Record automatically
Auto-import to the app; log meals and exercise too
STEP 03
Visualize
Grasp your status with trend graphs and PFC
STEP 04
Guide toward goals
Daily nudges toward your target weight
02
CHALLENGE
Design challenges to solve

The four structural requirements demanded of the app.

None of these are questions of technology choice — they are business requirements tied directly to retention, user satisfaction, and development efficiency. Building anew from scratch demanded a design that "satisfies them all at once."

Device integration
Rely on manual entry, andrecording doesn't last, andusers drop off. A mechanism to auto-import from the device is essential.
Cross-platform
Build iOS and Android separately, andDevelopment and maintenance costs double.
Unified records
If weight, meals, and exercise stay scattered,the big picture stays unclear, andit doesn't lead to action.
Retention support
Without designing visualization and guidance,motivation doesn't last, andhabits never form.
03
ARCHITECTURE
The architecture we built together

Turning a health app into a "foundation you can stick with" across four domains.

We built four domains from scratch in-house — device integration, dual-OS support, unified records, and retention support — using React Native and a proprietary Bluetooth protocol, combining effortless measure-and-record with visualizations that keep users going.

Amela
EXECUTION
8 months
Period
20 person-months
Total effort
Domain ①
Device integration
Challenge
Need to eliminate manual entry and auto-import from the device
Solution
Auto-import via a proprietary Bluetooth protocol
Just measure weight, body fat, and heart rate to record
Domain ②
Cross-platform
Challenge
Need to support both iOS and Android efficiently
Solution
React Native single codebase
Improve quickly with OTA updates (CodePush)
Domain ③
Unified records
Challenge
Need to bundle weight, meals, and exercise into one
Solution
Integrate weight, meals (PFC), and exercise
Aggregate health data too via Google Fit integration
Domain ④
Retention support
Challenge
Need to design motivation for habit formation
Solution
Goal visualization and progress graphs
Daily nudges via activity rings and achievement rate
MOBILE
React Native BLE Google Fit
BACKEND
Node.js Express MySQL Redis
04
IMPACT
The value the platform creates

VitaPulse's "healthy-habit building" accelerates.

This foundation continuously delivers business outcomes — retention, user satisfaction, and development efficiency — not just technical metrics.

A foundation where measuring alone records
Minimize effort to keep users recording.
Deliver to both OSes at once
A single codebase lets us ship to both iOS and Android quickly.
A design that unifies health data
Bring weight, meals, and exercise together to spark insights that drive action.
A mechanism to maximize retention
Goal visualization and guidance boost habit formation and satisfaction.
🏃
STAKEHOLDER
User
Typically
✕ Manual entry is tedious, so recording doesn't last
At VitaPulse,
✓ Just measure to auto-record — easy to keep up
Business impact
Higher retention
⚖️
STAKEHOLDER
Device maker
Typically
✕ The device alone struggles to convey experiential value
At VitaPulse,
✓ A companion app unlocks the device's value
Business impact
Higher device value-add
🛠️
STAKEHOLDER
Development & operations
Typically
✕ Develop and maintain iOS and Android separately
At VitaPulse,
✓ Operate efficiently on a single codebase
Business impact
Lower development and maintenance costs
📊
STAKEHOLDER
Health data
Typically
✕ Data is fragmented and hard to use
At VitaPulse,
✓ Unified management delivers continuous insights
Business impact
Ongoing health support
05
DEMO
Three scenarios

Experience VitaPulse through a live, working demo.