Napkin – Notes & Calc
Alexander Presber
Getting the latest details from the App Store…
Alexander Presber
Getting the latest details from the App Store…
Napkin is a notes app that calculates, on iPhone, iPad and Mac. Write a line, end it with =>, and the result appears behind the arrow. Change a number above it and every result below updates as you type. CALCULATE IN YOUR NOTES • Variables, including names with spaces: rent = 1100, per day = left / 30 => • Your own functions: f(x) = x^2 + 1, then f(4) => • Units and conversions: 26.2 miles in km =>, 50 km/h * 30 min => • Unknown names stay symbolic: 2 * y + 3 * 4 => 2y + 12 EQUATIONS • 6x =…
Ranks come from Apple's public App Store charts, checked once a day. Appulse Index isn't affiliated with Apple.
Higher on the chart is better: #1 is at the top.
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Germany · Paid · Productivity: best #76, latest #76, over 9 snapshots since 19 Oct.
| Chart | Rank | 24 h | 7 days | Best | Days on chart |
|---|---|---|---|---|---|
| Germany· Paid · Productivity · best #76 · 1 day | #76 |
Top of Paid · Productivity in Germany. Napkin – Notes & Calc is #76 there. Changes are over 7 days.
From the app's App Store listing.
Napkin is a notes app that calculates, on iPhone, iPad and Mac.
Write a line, end it with =>, and the result appears behind the arrow. Change a number above it and every result below updates as you type.
CALCULATE IN YOUR NOTES
EQUATIONS
Version 1.3 · 22 Oct 2026 ·
How the app presents itself on the App Store. Select a screenshot to open it full size.
What Apple publishes about this app. Ratings are from one country's App Store.
Higher on the chart is better: #1 is at the top.
Sign in to see 30 days, 90 days and all history.
Germany · Paid · Productivity: best #76, latest #76, over 9 snapshots since 19 Oct.
Every chart this app is in right now, best position first.
| Chart | Rank | 24 h | 7 days | Best | Days on chart |
|---|---|---|---|---|---|
| Germany· Paid · Productivity · best #76 · 1 day | #76 |
Entries, big moves, #1s and new versions we've recorded, by day.
Top of Paid · Productivity in Germany. Napkin – Notes & Calc is #76 there. Changes are over 7 days.
Ranks come from Apple's public App Store charts, checked once a day. Appulse Index isn't affiliated with Apple.
| Not enough history yet |
| Not enough history yet |
| #76 |
| #76 |
| 1 |
| 1 |