Overview
Percentage Increase Calculator is a free online tool that instantly computes percentage changes between two values. It supports both increases and decreases, displaying negative results in red. Users can enter any two of three fields (original value, new value, percentage change) and the third auto-calculates. It is ideal for salary raises, price increases, stock growth, and property value changes.
Hero Widget is a beautiful embeddable widget for displaying MRR and user count metrics in real-time. It integrates with Stripe, Lemonsqueezy, Paddle, Gumroad, or Whop for auto-sync, or allows manual updates. The widget is free forever and can be embedded via a simple iframe code.
Feature Comparison
| Feature | Percentage Increase Calculator | Hero Widget |
|---|---|---|
| Primary Function | Calculates percentage change between two values | Displays real-time MRR and user count metrics |
| Input Method | Three-field input; auto-calculates missing field | API integration or manual entry |
| Output Display | Step-by-step formula, plain English, negative in red | Real-time widget showing MRR and user count |
| Use Case | Salary, prices, stocks, property, interest rates | SaaS companies showcasing growth |
| Integration | Standalone web tool | Stripe, Lemonsqueezy, Paddle, Gumroad, Whop |
| Customization | None | Widget appearance likely customizable |
| Real-time Updates | Updates as user types | Metrics update instantly across all embeds |
| Pricing | Free | Free forever |
Pricing
Percentage Increase Calculator: Free online tool with no registration or payment required.
Hero Widget: Free forever with one widget, real-time metric updates, API integrations, and manual control. No credit card needed.
Pros and Cons
Percentage Increase Calculator
Pros:
- Instant auto-calculation with no buttons
- Handles both increases and decreases (negative in red)
- Step-by-step formula display for transparency
- Three-field input solves for any missing value
- Works for any scale (small to large numbers)
Cons:
- No API or external integration
- No real-time data sync; manual input only
- Limited to percentage change calculations only
Hero Widget
Pros:
- Real-time metric updates across all embeds
- Easy iframe embed – copy and paste
- API integration with major payment platforms
- Free forever with no credit card
- Builds trust by showing transparent growth metrics
Cons:
- Only displays MRR and user count; not a general calculator
- Requires setup (API keys or manual entry)
- Widget may not suit all website designs
Verdict
Choose Percentage Increase Calculator if you need a quick, versatile tool for any percentage change scenario (salary, prices, investments) without setup. Choose Hero Widget if you run a SaaS or startup and want to showcase real-time MRR and user growth on your site to build trust. Both are free but serve entirely different purposes.
Hero Widget
Percentage Increase Calculator