# Top tools for integrating apps with legacy systems

<p class="elv-tracking-normal elv-text-default elv-font-figtree elv-text-base elv-leading-base elv-font-normal" elv="true">If you’re looking for the best <a class="a a--md" elv="true" href="https://www.g2.com/categories/application-development-platforms"><strong>application development platforms</strong></a> for integrating modern apps with legacy systems, several top-rated solutions stand out. These platforms provide low-code and full-stack development environments that help teams modernize business applications while maintaining compatibility with older infrastructure. Based on the application development platforms category on G2</p><p class="elv-tracking-normal elv-text-default elv-font-figtree elv-text-base elv-leading-base elv-font-normal" elv="true">, here’s a breakdown by business size and integration complexity:</p><ul>
<li>
<a class="a a--md" elv="true" href="https://www.g2.com/products/zoho-creator/reviews"><strong>Zoho Creator</strong></a>: Zoho Creator is a low-code platform designed for building custom business apps. It includes prebuilt connectors and integration features that allow teams to bridge modern apps with older systems. <em>(Affordable pricing; flexible plans)</em>
</li>
<li>
<a class="a a--md" elv="true" href="https://www.g2.com/products/outsystems/reviews"><strong>OutSystems</strong></a>: OutSystems provides a visual development environment with drag-and-drop design and robust integration capabilities. It’s a great fit for SMBs and mid-market teams looking to connect apps to existing ERP or CRM systems quickly. <em>(Enterprise-grade features available at multiple tiers)</em>
</li>
</ul><strong>Platforms for Mid-Market Companies</strong><ul>
<li>
<a class="a a--md" elv="true" href="https://www.g2.com/products/mendix/reviews"><strong>Mendix</strong></a>: Mendix supports both no-code and low-code development, making it ideal for teams that want to build modern apps while integrating them into legacy systems. It supports cloud, on-premise, and hybrid deployments, giving companies flexibility. <em>(Custom pricing)</em>
</li>
<li>
<a class="a a--md" elv="true" href="https://www.g2.com/products/appian/reviews"><strong>Appian</strong></a>: Appian combines low-code app development with workflow automation and process management. It is often used to integrate new applications with older business systems while maintaining compliance and governance. <em>(Pricing based on deployment size)</em>
</li>
</ul><strong>Enterprise-Grade Platforms</strong><ul>
<li>
<a class="a a--md" elv="true" href="https://www.g2.com/products/microsoft-power-apps/reviews"><strong>Microsoft Power Apps</strong></a>: Power Apps integrates directly with Microsoft 365, Dynamics, and Azure services. It provides low-code tools for creating business apps that can extend and connect to legacy Microsoft infrastructure. <em>(Flexible enterprise pricing)</em>
</li>
<li>
<a class="a a--md" elv="true" href="https://www.g2.com/products/salesforce-platform/reviews"><strong>Salesforce Platform</strong></a>: Salesforce Platform provides tools for low-code and pro-code development with strong integration features. It enables enterprises to connect new apps to existing ERP, CRM, and legacy systems through APIs and MuleSoft connectors. <em>(Enterprise pricing)</em>
</li>
</ul><p class="elv-tracking-normal elv-text-default elv-font-figtree elv-text-base elv-leading-base elv-font-normal" elv="true">These platforms help businesses modernize their apps while maintaining compatibility with critical legacy systems, ensuring both innovation and stability.</p>

##### Post Metadata
- Posted at: 9 months ago
- Author title: Industry Analyst
- Net upvotes: 1


## Comments
### Comment 1

&lt;p&gt;There&#39;s also a master application development page for options to look at as well: https://www.g2.com/categories/application-development&lt;/p&gt;

##### Comment Metadata
- Posted at: 9 months ago
- Author title: Industry Analyst





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