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IoT App Development Company: IoT Application & Connected Device Software Development

Updated September 2026 · Written and maintained by the Progression Agency strategy team

Progression Agency provides IoT app development: mobile and web apps that pair with, control and monitor connected devices, and the cloud backends that ingest device data, trigger alerts and push firmware and configuration updates.

On this page · 12 sections
  1. What is IoT app development?
  2. IoT software we build
  3. Key features and components
  4. Common integrations
  5. IoT security
  6. Our IoT app development process
  7. How much does IoT app development cost?
  8. Technology we typically use
  9. Mistakes to avoid
  10. Why choose Progression Agency for IoT app development?
  11. Related services
  12. Video: building software

The short answerIoT app development is building the software around connected devices: mobile apps that pair over Bluetooth or Wi-Fi, cloud platforms that ingest telemetry, dashboards and alerts, and secure update mechanisms. An IoT companion app with cloud backend commonly costs $80,000-$250,000.

Cost ranges are US planning figures, not quotes.

IoT app development searches
Hardware companies search for teams who can build the app and cloud around their device.

What is IoT app development?

IoT app development is designing and building the mobile, web and cloud software that lets people and businesses connect to, control and monitor internet-connected devices.

We build the software layer around your device and firmware team; for pure embedded firmware we work alongside your engineers.

Pair — Companion apps. Setup and control..
Cloud — IoT cloud. Telemetry at scale..
Dash — Monitoring. Dashboards and alerts..
Fleet — Fleet management. Devices at scale..
OTA — Updates. Secure OTA..
Ind — Industrial IoT. Sensors and assets..

IoT software we build

Projects we are most often asked to build.

Consumer device companion apps

Bluetooth or Wi-Fi setup, control and history for smart products.

IoT cloud platforms

Device identity, telemetry ingestion, storage and rules.

Monitoring dashboards

Real-time status, alerts and history; see dashboard development.

Fleet management

Provisioning, grouping and remote configuration of many devices.

Over-the-air updates

Secure firmware and configuration delivery.

Industrial and commercial IoT

Sensors, asset tracking and predictive maintenance; see manufacturing software.

We build the software layer around your device and firmware team; for pure embedded firmware we work alongside your engineers.

Key features and components

What separates a useful build from a costly one.

IoT app development: key components
FeatureWhy it matters
Device pairingEasy setup
Real-time statusLive data
Alerts and rulesAct on events
Device identity and certificatesSecurity
OTA updatesKeep devices current
Offline toleranceIntermittent connectivity
History and analyticsTrends
User and role managementHouseholds or teams

Common integrations

Where the value usually comes from.

Common integrations
SystemWhat we connect
Bluetooth LELocal device communication
MQTTLightweight messaging
Cloud IoT servicesAWS IoT Core, Azure IoT Hub
Push notificationsAlerts
Smart home platformsApple Home, Google Home, Alexa where relevant
Data warehouseAnalytics

IoT security

Connected devices are a security responsibility.

  • NIST IoT cybersecurity guidance for device manufacturers (NIST).
  • Unique device identities and certificates.
  • Signed, verified OTA updates.
  • Least-privilege cloud access and encrypted transport.
How we deliver IoT app development
Testing with real hardware early catches pairing and connectivity issues simulators miss.

Our IoT app development process

We map device capabilities and data, choose connectivity and cloud services, build secure device identity and ingestion, develop the companion app and dashboards, test on real hardware and plan fleet operations.

How much does IoT app development cost?

As a planning range, a companion app for an existing device platform commonly costs $60,000-$130,000, an app plus cloud backend $80,000-$250,000, and industrial IoT platforms more.

IoT app development cost ranges (planning figures)
ScopeTypical rangeTimeline
Companion app (existing cloud)$60,000-$130,0003-5 months
App + IoT cloud backend$80,000-$250,0004-8 months
Industrial IoT platform$200,000+6-12 months

Technology we typically use

Mainstream, maintainable choices.

Technology we typically use
LayerChoice
MobileSwift/Kotlin or React Native with BLE libraries
CloudAWS IoT Core or Azure IoT Hub
MessagingMQTT
BackendNode.js or Python
DataTime-series storage, PostgreSQL
DashboardsNext.js

Mistakes to avoid

Common causes of overruns and low adoption.

  • Testing only in simulators.
  • Shared credentials across devices.
  • No OTA plan.
  • Assuming constant connectivity.
  • Ignoring battery impact.
  • Storing all telemetry forever.
Real hardware — IoT. Tested early..
Device identity — IoT. Unique per device..
OTA — IoT. Signed updates..
Offline — IoT. Intermittent links..
Battery — IoT. Efficient..
Data retention — IoT. Planned..

Why choose Progression Agency for IoT app development?

Engineering, design and go-to-market in one team.

  • Mobile, cloud and dashboard under one team.
  • Security-first device identity and updates.
  • Product launch marketing for hardware brands.
  • You own the code, data and accounts.
  • Headquartered in New York City, working nationwide.

See native app development, manufacturing software development and dashboard development.

Ready to scope it?

Tell us the users, workflow and systems involved. We will propose a first release and planning estimate.

Get a proposal

Video: building software

Explainers on the practices and frameworks we use.

Getting found in search

AI, AEO and what is changing

Paid media and lead generation

Websites and design

Choosing and working with an agency

Software and app development

Social, content and brand

By industry and by situation

Frequently asked questions

What is IoT app development?
Building the mobile, web and cloud software for connected devices.
How much does an IoT app cost?
As a planning range, $60,000-$130,000 for a companion app and $80,000-$250,000 with a cloud backend.
How long does IoT app development take?
Commonly 3-8 months.
Do you write firmware?
We build the app and cloud and work alongside your firmware engineers.
What is BLE?
Bluetooth Low Energy, used for local device communication.
What is MQTT?
A lightweight messaging protocol common in IoT.
Which cloud do you use for IoT?
AWS IoT Core or Azure IoT Hub, chosen per project.
How do you secure IoT devices?
Unique identities, certificates, encrypted transport and signed OTA updates.
What are OTA updates?
Over-the-air updates delivered remotely to devices.
Can you build smart home apps?
Yes, including integrations where relevant.
Can you build industrial IoT dashboards?
Yes.
Native or cross-platform for IoT apps?
Native for complex Bluetooth needs; cross-platform often works.
How do you test IoT apps?
On real hardware across conditions.
How much maintenance is required?
Cloud, app and security updates plus fleet operations.
What should I look for in an IoT developer?
BLE, cloud IoT and security experience.
Can you manage device fleets?
Yes, with provisioning and remote configuration.
Can IoT data feed our analytics?
Yes, into dashboards and warehouses.
Can AI analyze IoT data?
Yes, for anomaly detection and prediction.
Who owns the software?
You do.
Where is Progression Agency located?
New York City, serving clients nationwide.

Sources and further reading

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Planning an app?We design, build, launch and maintain iOS, Android and web apps, with a written scope before any code.

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