This app provides landlords, property managers, and tenants with six specialized calculators to accurately determine prorated rent, late fees, security deposit interest, and rent increases. It includes built-in state law guidance for all 50 states and DC, along with property and lease management features and smart alerts.
2.0.3
September 4, 2026
SIX CALCULATORS, ONE STATE-LAW ENGINE Rent Proration, Late Fee, Security Deposit Interest, Rent Increase, Affordability, and Utility Split. Each one cites the statute behind the number, for all 50 states plus DC. NEW IN 2.0.3 • New name, same app: Prorate Calculator Pro is now Rent Calculator: Lease Tracker. • Try every calculator free. Your first 3 calculations work on any of the six, with full state citations. Premium unlocks unlimited calculations, the lease tracker, alerts, widgets, iCloud sync, and AI insights. Early supporters keep their Lifetime Basic access and loyalty pricing. • Send feedback from Settings and get replies from the studio right in the app. • Manage your subscription from Settings. • Stability improvements.
MoreFull access to all pro tools, billed monthly.
$49.99
Premium - Lifetime
Unlock everything forever with a single purchase.
Prorate Calculator Pro is a utility app designed to help landlords, property managers, and tenants accurately calculate prorated rent, late fees, security deposit interest, and rent increases. It offers six specialized calculators with built-in state law guidance for all 50 states plus DC.
No, Prorate Calculator Pro does not contain advertisements. The app is free to start with core calculators and offers a premium upgrade for additional features.
The rent proration and affordability calculators are available for free with no usage limits. These tools allow users to perform essential calculations without needing to upgrade.
The Premium upgrade unlocks all six calculators, comprehensive property management features, iCloud sync, smart alerts, AI-powered insights, widgets, and move-in/move-out photo documentation. This provides a complete solution for property management needs.
The app includes built-in guidance for state laws across all 50 states and DC. This ensures that calculations for late fees, rent increases, and other financial aspects are accurate and legally defensible according to local regulations.
Prorate Calculator Pro is available on iPhone, iPad, and iPod devices. It is designed to be accessible across Apple's mobile ecosystem.
The app was last updated on April 15, 2026, indicating it receives regular updates to ensure functionality and compliance with current laws and features. The latest version is 2.0.2.
Prorate Calculator Pro has received excellent user feedback, holding a 5.0-star rating from 5 reviews. This suggests a high level of user satisfaction with its accuracy and features.
