---
title: "Application Revamp"
description: "🔧 Structure your prototypes, modernise your legacy systems Turn your patched-together or outdated tools into reliable, maintainable and scalable web applications. 🔄 2 problems, 1 solution: a bespoke revamp Your situation My solution Result ⚠️ « My AI/No-Code prototype won’t scale »It’s modern, but poorly structured, buggy, or impossible to maintain Complete revamp with a clean architecture and documentation A maintainable, scalable application with no technical debt ⚠️ « My legacy system is expensive to maintain »PHP, Access, FileMaker… technologies from the 2000s Progressive migration to a modern webapp A secure, performant system compatible with today’s tools 🛠 Prototype revamp (AI application, No-Code, patched-together tools) […]"
url: "https://calamus.fr/en/application-revamp/"
author: "contact@calamus.fr"
date: "2026-08-08T12:24:29+02:00"
lang: "en_US"
---

# Application Revamp

## 🔧 Structure your prototypes, modernise your legacy systems

 *Turn your patched-together or outdated tools into **reliable, maintainable and scalable** web applications.*

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## 🔄 2 problems, 1 solution: a bespoke revamp

 | Your situation | My solution | Result |
|---|---|---|
| **⚠️ "My AI/No-Code prototype won't scale"** It's modern, but poorly structured, buggy, or impossible to maintain | Complete revamp with a **clean architecture** and documentation | A **maintainable**, scalable application with no technical debt |
| **⚠️ "My legacy system is expensive to maintain"** PHP, Access, FileMaker… technologies from the 2000s | Progressive migration to a **modern webapp** | A **secure**, performant system compatible with today's tools |

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## 🛠 Prototype revamp (AI application, No-Code, patched-together tools)

### ⚠️ Does your prototype show these symptoms?

- **It works... until it crashes** (and you don't know why)
- **Impossible to add a new feature** without breaking everything
- **Your "developer"** (a friend, an intern, yourself) isn't available anymore
- **You spend more time fixing it** than using it
- **The code is unreadable** (or non-existent, if it's pure no-code)
- **It works for 10 users, but not for 100**

### ✅ What I offer for your prototype or AI application

1. **Free audit** (30 min): analysis of your current code/prototype, identifying the blocking points
2. **Complete revamp** with: 
    - **Clean, commented and documented** code
    - **Modular and scalable** architecture
    - Automated tests to prevent regressions
    - **Structured** database (if needed)
3. **Training** so you're autonomous for small changes
4. **1 month of maintenance included** (bug fixes, adjustments)

#### 💰 Pricing (Prototype revamp)

- **Audit**: FREE (30 min)
- **Basic revamp**: From €1,200 (1 week)
- **Complete revamp**: €2,500 - €4,000 (2-3 weeks)
- **Monthly support**: €200 to €800/month
 

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## 🏛 Legacy system revamp (PHP, Access, FileMaker…)

### ⚠️ Does your legacy system show these symptoms?

- **It dates from the 2000s** (PHP 5, Access, FileMaker, old Java versions…)
- **Maintenance costs keep rising** (developers charge a premium to touch old code)
- **Impossible to hire** developers who want to work on it
- **Your users complain** because of the outdated interface or recurring bugs
- **It's not compatible** with modern tools (API, mobile, cloud…)
- **Questionable security** (unpatched vulnerabilities)

### ✅ What I offer for your legacy system

1. **Full technical audit** (€200, refunded if you sign): 
    - Compatibility analysis with modern technologies
    - Security risk assessment
    - Performance benchmark
2. **Progressive migration** (with no service interruption): 
    - **Phase 1**: New user interface (modern frontend)
    - **Phase 2**: Backend revamp (REST API)
    - **Phase 3**: Database migration (if needed)
3. **Training** for your team on the new tools
4. **Post-migration support** (3 months included)

#### 💰 Pricing (Legacy system revamp)

- **Technical audit**: €200 (refunded if you sign)
- **Basic migration**: From €2,000 (2-3 weeks)
- **Complete migration**: €5,000 - €10,000 (1-2 months)
- **Annual maintenance**: €1,200/year
 

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## 🎯 Why choose a bespoke revamp?

#### ✅ Accessible everywhere

Browser, mobile, tablet… no installation needed

 

#### ✅ Multi-user

No data conflicts or overwrites

 

#### ✅ Secure

Automatic backups, data protection

 

#### ✅ Scalable

Add features without breaking everything

 

#### ✅ Maintainable

Clean, documented code, no technical debt

 

#### ✅ Support

Training included for your team

 

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## 💡 What sets me apart

- **Progressive approach**: I don't break what already works, I improve it in stages
- **100% remote**: Easy communication on WhatsApp or Telegram
- **Human support**: No technical jargon, training included so you're autonomous
- **Flexible payment**: In instalments if needed (no extra fees)
- **Total transparency**: You have access to the code, backups, and documentation

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## 📞 Ready to revamp your applications?

### 🎁 Discovery offer

- **For prototypes**: **Free** audit (30 min)
- **For legacy systems**: Audit at **€200** (refunded if you sign)
 
 [ Contact me on WhatsApp](https://wa.me/33637066822?text=Hello%2C%20I%27d%20like%20to%20revamp%20my%20application%21)

 *Reply within 24h – flexible time zone*

Want to know more? Also check out:

 [📊 Get out of Excel](/en/get-out-of-excel/) | [💼 Portfolio](/en/portfolio-en/) | [🛠 Services](/en/services-2/)

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*Source : [calamus.fr](https://calamus.fr/en/application-revamp/)*