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MobileApp Shield

Protect the transaction — even when the phone is compromised.

A compromised phone doesn't have to mean a compromised transaction. Every high-risk transaction is cryptographically signed using the phone's own built-in hardware key — the same hardware protection Apple and Google already put in every device, now put to work protecting the transaction itself. No software trick can extract that key. No key, no signature — no transaction.

Built and working today: iOS + Android SDKs, live sample apps — heading into independent penetration testing.

What Changes For Your Business

One standard, both ends, built for the transactions that matter.

Ahead of Where Regulation Is Heading

RBI-style guidance is moving toward mandatory device and app integrity controls — because AI has made attack tooling dramatically more accessible than it was even two years ago. MobileApp Shield gives you a control you can point to directly in that conversation, not a checkbox retrofitted later.

Both Ends, One Team Accountable

The app-embedded side and the verifying gateway both run on BAPI Core — the same architecture already governing your other API traffic. Nobody has to trust a black-box SDK from a vendor who only controls one end. Your team can reason about and validate the whole chain.

Scoped to the Transactions That Matter

This isn't a general-purpose mobile security suite for your whole app. It's built for your highest-risk transactional calls — the ones where a compromised session actually costs money. Narrow, provable, and easy to reason about, with OTP, email verification, and authenticator apps layered on top as add-ons, not the foundation.

The Problem — And The Fix

A rooted phone can inspect everything an app does before it's ever sent — and lie to any check that asks it a question.

BANKING APP — NO PROTECTION 9:41 BALANCE $18,500.00 Send Money ! HOOKED. FIRES WITHOUT A TAP. A hooking tool taps "Send Money" for you. Money Sent Your Banking Backend Sees a normal request A ROOTED PHONE CAN FIRE "SEND MONEY" WITHOUT YOU. A hooking tool triggers the request itself — your backend receives it looking exactly like a real transaction. BANKING APP PROTECTED BY MOBILEAPP SHIELD SDK 9:41 BALANCE $18,500.00 Send Money Device integrity verified ✓ Money Sent ✕ Send Failed Protected by: billionapis MobileApp Shield SMISHING ATTACK NORMAL DEVICE YOUR INFRASTRUCTURE BAPI Core Gateway Verifies the request, again Your Banking Backend Receives only verified requests WHATEVER FIRES THE BUTTON, THE GATE DECIDES. No valid signature leaves a compromised phone — the SDK blocks it before it's sent, and BAPI Core verifies it again.

A clean device transacts normally. A smishing attack compromises it. Whatever fires the button next, the SDK's device-integrity gate blocks the request before it's sent, and BAPI Core verifies it again independently — then the device is restored and the cycle repeats. Scoped deliberately to the jailbreak/root problem; OTP, email, and authenticator checks layer on top as add-ons, not shown here.

Built. Sample Apps Working. Entering Validation.

A working SDK, not a design doc — now heading into independent penetration testing.

Android and iOS sample apps demonstrate the full register-and-transact flow against a real demo banking backend today. The next step, before broader production rollout, is independent penetration testing.

iOS + Android

Both platforms have working SDKs and sample apps demonstrating real signed transactions end to end.

Hardware-Backed Keys

Generated and held inside each device's own built-in hardware security — Android StrongBox, iOS Secure Enclave. The key never leaves the device.

Entering Pen Testing

Independent security validation is the next step underway before broader production rollout.

Bring your highest-risk transactions onto one standard.

MobileApp Shield is built and working today, heading into independent security validation — talk to us about becoming an early design partner.

Schedule a Demo