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Urgent Mobile Application Development

A market opportunity you can't miss? An app that crashes or a store rejection that blocks everything? Arkone steps in to develop, fix and deploy your mobile solutions without delay.

You don't have 3 months to spare? Neither do we.

In the mobile ecosystem, everything moves very fast. A missed opportunity or a critical bug can be costly. Whether you're a startup or an SME, you may be facing one of these emergencies:

  • Immediate market opportunity: You have identified an urgent user need or a niche to seize before the competition, but no app to meet it.

  • Event Deadline: A trade show, conference or product launch is approaching (D-15), and your demo or service application is not ready.

  • App Store Blocking & Rejection: Apple or Google refuses your update or threatens to remove your app. You are in an administrative and technical bind.

  • "Zombie" project or Crashes: Your developer is no longer responding, the app is no longer maintained, or an iOS/Android update has broken everything.

  • Need for a key feature: The missing feature (Scan, Geolocation, Notification) is needed to sign a major client or successfully raise funds.

Don't let technology ruin your business. At Arkone, we are experts in rapid mobile development and application rescue .

Our "Mobile Commando" interventions on iOS and Android

No need to rewrite everything. Our team in La Défense is proficient in flexible technologies (React Native, Expo) to intervene surgically and quickly.

1. MVP Development & Express Launch

Do you need to test an idea or present a functional product in record time?

  • Building robust MVP applications.

  • Using React Native / Expo for simultaneous deployment on iOS and Android.

  • Transforming your website into a mobile application.

2. Troubleshooting, Maintenance & Validation of Stores

Is your app in danger? We'll take urgent action:

  • Store unlocking: Compliance with Apple/Google guidelines to get your app approved.

  • Critical bug fixes: Resolved crashes related to OS updates.

  • Code recovery: Flash audit and takeover of an existing, abandoned application.

3. Integration of Native Features

Need to enhance your existing tool? We add specific modules:

  • Push notifications.

  • Camera, QR Code Scan & Augmented Reality.

  • Geolocation & Mapping.

  • Offline mode (Offline first).

mobile scanning application for events
Arkone agence web et mobile 2025

Why Arkone for your Mobile Emergency?

Developing quickly for mobile is risky (battery, performance, network). You need experts.

  • Accustomed to "Live" events: Our applications run during major events (2024 Olympics, Rugby Village). They must not crash when hundreds of users connect.

  • Senior Team in La Défense: No outsourcing to the other side of the world. We test your app with you, physically, on different devices.

  • Total transparency: If a feature is too risky for your deadline, we'll tell you and find a reliable alternative.

The reassuring figure: ?? mobile applications delivered and hundreds of active users on our event solutions.

Why Arkone for your Mobile Emergency?

Developing quickly for mobile is risky (battery, performance, network). You need experts.

  • Accustomed to "Live" events: Our applications run during major events (2024 Olympics, Rugby Village). They must not crash when hundreds of users connect.

  • Senior Team in La Défense: No outsourcing to the other side of the world. We test your app with you, physically, on different devices.

  • Total transparency: If a feature is too risky for your deadline, we'll tell you and find a reliable alternative.

The reassuring figure: ?? mobile applications delivered and hundreds of active users on our event solutions.

Arkone agence web et mobile 2025

How does a mobile intervention at Arkone work?

Immediate Diagnosis

Analysis of the crash, the store rejection, or the specifications

Quality and kindness

We define the shortest path to be online

Hybrid Development

Use of fast technologies (JS/Typescript)

Submission & Deployment

We handle the Stores bureaucracy for you

Technical Expertise: Immediately Operational on Your Stack

To move quickly without sacrificing quality, we rely on the mobile JavaScript ecosystem, the modern industry standard.

We primarily work on:

  • Mobile: React Native, Expo, Javascript, TypeScript.
  • Mobile back-end: NodeJS.
  • Stores: Apple App Store Connect, Google Play Console, TestFlight.
Teams brainstorming in Paris
Arkone team specializing in the creation of customized business solutions in Puteaux

Ready to resolve your situation?

Don't let a rejection or a deadline ruin your opportunity. Let's discuss your urgent mobile project now (video call, phone call, or coffee in La Défense).