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I will develop a smart iot and ble bluetooth connected app for ios and android
Karishmaa
5.0
5.0
About this gig
Connect Your Hardware to the World!
Are you building a smart device, wearable, or IoT product? I am a Senior Mobile App Developer with 10+ years of experience building highly stable IoT, BLE (Bluetooth Low Energy), and Classic Bluetooth apps for iOS and Android.
I establish secure, zero-latency connections between your physical hardware and user-friendly mobile dashboards.
️ Hardware & Protocols I Work With:
- Medical & Health IoT: Blood pressure monitors, ECGs, weight scales, smartwatches.
- Smart Home & Trackers: Smart locks, beacons, sensors, and fitness bands.
- Protocols: BLE GATT profiles, CoreBluetooth, Background Packet Syncing, Secure Handshakes.
What You Get:
- Auto-scanning and seamless device pairing
- Background data syncing and offline local storage (SQLite/CoreData)
- Beautiful charts and real-time telemetry dashboards
- Secure Cloud/API integrations (REST, Firebase, AWS)
Why Choose Me?
- 10+ Years Experience: Delivering enterprise-grade, crash-resistant apps.
- Native & Hybrid Mastery: Swift, SwiftUI, UIKit, and cross-platform solutions.
Hardware projects are unique! Please message me before ordering to discuss your specific BLE device and requirements.
Get to know Karishmaa
Karishmaa
Mobile App Developer
- FromIndia
- Member sinceFeb 2026
- Avg. response time1 hour
- Last delivery3 weeks
Languages
English, Hindi, German
Experienced Mobile App Developer specializing in iOS applications with strong expertise in Swift, SwiftUI, UIKit, Firebase, API integration, BLE, and App Store deployment. I help startups and businesses build modern, high-performance mobile apps with clean UI/UX and scalable architecture. Whether you need a new app, bug fixes, feature upgrades, or long-term development support, I deliver reliable solutions with clear communication and quality results. Let's work together.
My Portfolio
FAQ
Do you need my physical IoT/BLE device to develop the app?
In most cases, yes. Having the physical hardware is highly recommended to accurately test BLE pairing, read/write GATT characteristics, and debug real-time data. If shipping the device is not possible, we can work using detailed BLE protocol documentation and remote simulators.
Can you build a custom BLE SDK for my hardware?
Yes! In addition to mobile apps, I can develop a custom, reusable iOS and Android SDK (framework) for your IoT device. This allows your business to distribute the SDK so other developers can easily integrate your hardware into their own apps.
What kind of Bluetooth and IoT devices can you connect to?
With 10+ years of experience, I can connect apps to almost any BLE-enabled hardware. This includes medical devices (ECGs, BP monitors, weight scales, Activity trackers, pulse-oximeters), smart home sensors, fitness wearables, beacons, and custom ESP32, Raspberry Pi, or Arduino boards.
Do you build native or cross-platform IoT apps?
I offer both! For maximum Bluetooth performance and reliable background syncing, native apps (Swift for iOS, Kotlin for Android) are best. However, if you want to save time and budget, I can build high-quality cross-platform BLE apps using Flutter or React Native.
Can the app sync Bluetooth data in the background?
Yes. I specialize in implementing advanced background state restoration and BLE background processing. This ensures your app securely continues to scan, connect, and collect sensor data even when the user's phone is locked or the app is minimized.
Reviews
1 reviews for this Gig
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Rating Breakdown
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J jackjohnson9
India
Karishma delivered absolutely outstanding work and exceeded all my expectations for this mobile app project. Her technical understanding of complex BLE and IoT requirements was evident from our very first conversation. Sending the order was completely seamless, and she maintained highly professional...
Up to $50
Price
7 days
Duration
K 
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Reviews
1 reviews for this Gig
| (1) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
J jackjohnson9
India
Karishma delivered absolutely outstanding work and exceeded all my expectations for this mobile app project. Her technical understanding of complex BLE and IoT requirements was evident from our very first conversation. Sending the order was completely seamless, and she maintained highly professional...
Up to $50
Price
7 days
Duration
K Seller's Response
Helpful?
