Appspire LabsBUILT TO LAST
Start a project →
APPSPIRE LABS · PRODUCT ENGINEERING

From bare metal to the App Store.

TOLERANCE: ZERO HANDOFFS

Embedded Rust firmware, cross-platform apps, and the cloud behind them — engineered by one senior team, to hardware standards. AI-fast where it's safe, human-reviewed where it counts, owned 100% by you.

✓ PROTOTYPE IN 14 DAYS✓ SENIOR REVIEW ON EVERY LINE✓ NDA FIRST
EMBEDDED FIRMWARE
RUST
Your device
ESP32 · STM32 · nRF
BLE · over-the-air updates · low power
MOBILE APP
Your app
iOS & Android · feels native
Flutter · Kotlin · one codebase
BLE · WI-FI
a
One team builds every layer
✓ tested · ✓ reviewed · ✓ 100% yours
LIVE DATA
WEB APP
React · Next.js · dashboards & portals
CLOUD BACKEND
● live
Go · Rust · scales with your users
AI LAYERASSISTANTS · ON-DEVICE ML · EDGE INTELLIGENCE
EVERY LAYER — DEVICE, APP, WEB, CLOUD, AI — BUILT BY ONE TEAM
appspire — mission control● all systems shipping
// firmware · rust
$
▸ ai draft — 2,400 lines · 38s
▸ engineer review — refactored · tested
✓ shipped — signed update → your users
your app · one codebase
BATTERY LIFEyears not days
UPDATESsafe auto-rollback
CODE OWNERSHIP100% yours
PROTOTYPE LEAD TIME
14 days
TEAMS PER PRODUCT
1 max.
UNREVIEWED AI CODE SHIPPED
0 lines
CODE & IP OWNERSHIP
100% yours
We sign an NDA before anything sensitive.Fixed quotes in writing — if a cheaper way exists, we'll tell you.
01 — Capabilities

The complete product, delivered.

The application your customers use, the platform that powers it, and the web presence around it — engineered by a single team with undivided accountability.

Core practice

Mobile applications, done properly

iOS and Android from a single codebase — native performance, offline resilience, and biometric security as standard. Delivered with Flutter and Kotlin Multiplatform.

iOS · Android · offline-ready · face & fingerprint login · automated releases
LEARN MORE →
Platform engineering

Infrastructure built for scale

The systems behind the screen — engineered in Go and Rust to perform identically at your first user and your millionth.

Response time12 ms
Under loadsteady ✓
Your dataencrypted

Web platforms

Dashboards, customer portals and marketing sites — fast, secure, and built with React and Next.js.

Embedded systems

For connected products — wearables, sensors, devices — we engineer the firmware in-house, in Rust. Few application teams can.

LEARN MORE →

Ownership, transferred

Source code, designs, infrastructure and documentation — transferred to you from day one, without exception.

02 — Our stack

Modern tools, chosen on purpose.

Picked for performance, safety and longevity — across every layer we build, and nothing we can't hand over to your own team.

PARTS LIST — FULL STACKNO DEPENDENCIES YOU CAN'T SWAP OUT
EMBEDDED
Rust (no_std)Embassy / RTICESP32STM32Nordic nRF52 / nRF53
MOBILE
FlutterDartKotlin MultiplatformJetpack ComposeSwift
WEB
ReactNext.jsTypeScriptTailwind
BACKEND
GoRustgRPCKafkaPostgreSQLMongoDBRedisGraphQL
AI
LLM APIsRAGEvals & guardrailsOn-device MLTinyML
INFRA
DockerKubernetesGrafanaGitCI/CD
03 — AI development

AI in your product, not just ours.

We don't just build with AI — we build it into the products we ship. Assistants your customers actually use, models that run on the device, and intelligence drawn from your fleet's data.

AI · 01

Assistants & copilots

Chat and copilot features grounded in your own data and documents — with real evals, guardrails and cost control, not a demo that falls over in week two.

RAG · TOOL USE · EVALS · YOUR DATA STAYS YOURS
AI · 02

AI inside the app

Vision, voice and on-device models in your mobile app — fast, private, and working offline, because inference on the phone beats a round trip to a server.

ON-DEVICE ML · VISION · VOICE · OFFLINE INFERENCE
AI · 03

Intelligence at the edge

Anomaly detection and predictive maintenance from your device fleet's sensor data — tiny models on the MCU where latency matters, pipelines in the cloud where scale does.

TINYML · SENSOR DATA · TELEMETRY PIPELINES
FAIR WARNING ⚠

We won't bolt AI on for the pitch deck.If a search box or a SQL query solves your problem cheaper, we'll say so — AI goes in where it earns its keep, with evals to prove it.

04 — Our process

Velocity, with discipline.

AI accelerates the routine work; senior engineers own every decision. No release leaves our hands without formal review — that is the standard, on every engagement.

assembling first build…
STEP 1

Rapid first build

AI-assisted engineering delivers a working foundation in days, not weeks — surfacing the decisions that matter at the start of the engagement, not the end.

+
+
APPROVED
STEP 2

Formal engineering review

Every change is reviewed, tested and hardened by a senior engineer before release. AI accelerates our work; it never approves it.

Week 1 · first build✓ delivered
Week 2 · your feedback in✓ shipped
Week 3 · new features● in progress
STEP 3

Weekly working releases

A working build in your hands every week — progress you can measure on your own device, not in a status report.

CHECKED · TESTED · APPROVED
EVERY RELEASE, BY A SENIOR ENGINEER — NOT AN AI
05 — The Appspire Sprint

The Appspire Sprint: proof, not promises.

Fixed scope, fixed price, fourteen days: your core concept turned into something real and clickable. Test it, show investors, and decide the full build with evidence — you keep everything we make either way.

Start a Sprint →
THE SPRINT — AT A GLANCE№ 2026-07
CLIENTyour companyDURATION14 days, fixedPRICEfixed, quoted in writingOWNERSHIP100% client — code, docs, IP
DELIVERABLES
[✓] A working, clickable prototype[✓] A clear technical architecture[✓] A build roadmap & an honest estimate[✓] Full ownership of all code & IP
MILESTONES: D1 SCOPE · D3 FIRST BUILD · D10 HARDENING · D14 HANDOVER
FIXED PRICE
06 — Why trust us

Why teams trust us

1

Specialists, not generalists.

Plenty of agencies add firmware to a web shop as an afterthought. We came up the other way — embedded Rust and cross-platform mobile from the start. You're not funding a learning curve.

2

One team owns the result.

Firmware, mobile, web and backend, built by the same people. Nothing gets lost in a handoff — and there's nobody to point fingers at but us.

3

You own everything, day one.

Source code, firmware, docs and IP are yours from the start. NDA before anything sensitive, and no dependencies you can't swap out later.

4

New studio, senior hands.

Appspire is new; the people behind it have spent years on embedded firmware, mobile apps and large-scale backends. We work with a handful of clients at a time.

FAIR WARNING ⚠

We don't take every project.If we can't deliver real value, we tell you straight away — with reasons, and a pointer to someone better suited. We'd rather be honest than busy.

07 — Ways to work with us

Work with us, your way

OPTION AMONTHLY

Dedicated Team

You have a product. You need a team that owns it.

An embedded squad that scales with your roadmap — best for evolving products and long-term builds.

TERMS: FLEXIBLE SCOPE · SCALES MONTHLY
OPTION BMOST POPULAR

Fixed Scope

You have a clear scope. You need it delivered.

A defined deliverable on a fixed timeline and budget — ideal for a well-shaped MVP or a clear milestone.

TERMS: FIXED PRICE · FIXED TIMELINE
OPTION CPER ENGINEER

Staff Augmentation

You have a team. You need to move faster.

Plug our specialists — mobile, firmware or backend — straight into your existing team.

TERMS: PER ENGINEER · BILLED MONTHLY
08 — Questions & answers

Questions, answered straight

Yes. It's what we do best, and we don't subcontract it. We write production firmware in Rust for ESP32, STM32 and Nordic nRF, including BLE, Sub-GHz, FOTA and low-power work. If your product has a chip in it, this is the work we enjoy most.

Flutter and Kotlin / Jetpack Compose Multiplatform. One codebase covers both iOS and Android and still feels native. It ships sooner and costs less to maintain than building two separate apps.

You do, completely. The source code, firmware, docs and IP are all yours, with no lock-in. You can bring it in-house whenever you like.

Always, and before we get into anything sensitive. Your idea and your IP stay yours from the first conversation.

Usually within a week or two of the first scoping call. We give you a realistic timeline up front rather than an optimistic one just to win the work.

We quote a fixed scope in writing after a short discovery call. If there's a simpler or cheaper way to get you what you need, we'll say so, even when it means less work for us.

Short sprints and working software you can actually use each week, not status decks. With hardware that means firmware you can flash and test on your own boards as we go.

Hardware teams shipping connected devices, founders testing an MVP, startups scaling up, and companies modernising older apps. If we're not the right fit, we'll tell you and point you somewhere that is.

We stick around. We handle firmware updates, support and new features, and since you own everything, you're free to take it elsewhere whenever you want.

We're Appspire Labs Private Limited, based in India and working with clients across time zones. We schedule calls and demos around your hours.

09 — Say hello

Tell us what you're dreaming up.

Within one business day, a real engineer — not a salesperson — will get back to you with honest thoughts on how we'd build it.

Your idea stays yours

Happy to sign an NDA before you share anything sensitive. First chat is free, and there's no pressure after it.

hello@appspirelabs.comAppspire Labs Private Limited · India · we work in your time zone
Free first chat · NDA on request · a real person replies within 1 business day