Help Center

Check your spam/junk folder - The email often ends up there.

Verify the email address - Make sure you entered the correct email during purchase.

Wait a few minutes - Sometimes emails take 5-10 minutes to arrive.

Still nothing? Contact us using the form below with:

• Your purchase email

• Date and time of purchase

• Last 4 digits of card used

We'll resend your code within 24 hours.

Check for typos - The code is 16 characters: XXXX-XXXX-XXXX-XXXX

Remove extra spaces - Copy and paste can add invisible spaces.

Try typing manually - Instead of copy/paste, type the code character by character.

Case sensitive - Make sure capitals are correct (usually all uppercase).

Already used? Each code works on ONE device only. If you activated on another device before, that code is now locked to that device.

Unfortunately, no. Each activation code is permanently locked to the first device where it's activated.

Why? This prevents unauthorized sharing and protects your purchase.

Lost your device? Contact us using the form below explaining your situation. We evaluate cases individually and may provide a solution.

Buying a new phone? Make sure to activate on your NEW device, not the old one you're replacing.

Cleared browser data? If you cleared cookies/cache, the activation is lost.

Different browser? Activation is per browser. Chrome ≠ Safari ≠ Firefox.

Incognito mode? Activation doesn't persist in private/incognito windows.

Solution: Unfortunately, if activation data is lost and the code was already used, you'll need to contact support. We recommend NOT clearing browser data for the browser where DealCalc is installed.

Don't worry, your purchase is safe.

1. Check spam/junk folder

2. Wait 15 minutes (processing time)

3. Check the email associated with your payment method

Still nothing after 30 minutes?

Contact us using the form below.

We'll verify in Stripe and send your code immediately.

Stripe sends automatic receipt to your purchase email.

Check spam folder - Stripe receipts often end up there.

Need a formal invoice? Contact us using the form below.

We'll generate and send within 48 hours.

Due to the digital nature of the product and instant delivery of the activation code, we do not offer refunds.

The activation code is delivered immediately and becomes permanently tied to your device. Once activated, we cannot revoke access.

Before purchasing:

• Review all features on the landing page

• Read the FAQ section carefully

• Make sure you understand the single-device limitation

Having technical issues? Contact support first. We're happy to help resolve any problems with the product.

iPhone (Safari):

1. Open DealCalc in Safari

2. Tap the Share button (square with arrow)

3. Scroll down and tap "Add to Home Screen"

4. Tap "Add"

Android (Chrome):

1. Open DealCalc in Chrome

2. Tap the three dots menu (⋮)

3. Tap "Add to Home Screen" or "Install App"

4. Confirm

Now it works like a native app! Opens full screen, works offline, has its own icon.

IRR measures the annual return rate of your investment considering ALL cash flows over time.

Levered IRR = Return considering the mortgage (your actual cash investment)

Unlevered IRR = Return as if you paid 100% cash (no financing)

Higher IRR = Better investment (generally)

Example:

• You invest $50,000 down payment

• Over 5 years you receive cash flows

• You sell and get profit

• IRR calculates: "What annual % return equals all these cash flows?"

Good IRR for real estate: 15-25% levered is considered strong.

DealCalc lets you set different rent increases for each year.

Example scenario:

• Year 1-3: 3% increase (conservative, building tenant base)

• Year 4-7: 5% increase (market rate growth)

• Year 8-10: 4% increase (mature property)

How to enter:

1. Go to "Rent Projections" section

2. Enter percentage for each year

3. The app calculates future NOI automatically

Tip: Be conservative. Overestimating rent growth is the #1 mistake in investment analysis.

Analyses are saved locally in your browser.

To export PDF:

1. Complete your analysis

2. Go to "Report" or "Summary" tab

3. Click "Generate PDF" button

4. PDF downloads automatically

Important: If you clear browser data, saved analyses are lost. We recommend:

• Export important analyses to PDF immediately

• Keep PDFs organized by property

• Don't clear cache for the DealCalc browser

Try these solutions in order:

1. **Hard refresh** - Press Ctrl+Shift+R (Windows) or Cmd+Shift+R (Mac)

2. **Clear cache** - But remember this erases your activation

3. **Different browser** - Try Chrome, Firefox, or Safari

4. **Disable extensions** - Ad blockers can interfere

5. **Check internet** - First load requires connection

Still blank? Your browser might be outdated. DealCalc requires:

• Chrome 80+

• Safari 13+

• Firefox 75+

• Edge 80+

Common causes and solutions:

Pop-up blocker:

• Allow pop-ups for DealCalc

• Check if PDF opened in new tab

Storage full:

• Clear some space on device

• PDFs need temporary storage

Browser issue:

• Try different browser

• Update your current browser

Data incomplete:

• Fill all required fields

• Check for error messages in form

Tip: If PDF generates but looks wrong, try landscape orientation in print settings.

Decimal separator issues:

DealCalc uses:

• Period (.) for decimals: 5.25%

• Comma (,) for thousands: 100,000

If you see weird numbers:

1. Make sure you're using period for decimals

2. Don't include dollar signs ($) in inputs

3. Don't include percentage signs (%) - just the number

Example correct inputs:

• Price: 250000 (not $250,000)

• Interest rate: 6.5 (not 6.5% or 6,5)

• Down payment: 20 (not 20%)

DealCalc is 100% offline - there's nothing to sync!

All calculations happen locally on your device. We don't store your data on any server.

Benefits:

• Complete privacy

• Works without internet

• No account needed

• Your data stays yours

Downside:

• No cloud backup

• Can't access from multiple devices

• Clearing browser = losing data

Recommendation: Export important analyses to PDF as backup.