MathNotes - Notes that Count

JUJUMI TECH

About this app

Write your math the way you think it. End any line with "=" and
the answer appears instantly, right in your note.

■ As natural as thinking
No switching to a calculator, no copy-paste. Shopping lists,
bill splitting, budgets, quick engineering checks — write and
calculate in one place. Change a number, every result updates live.

■ Variables bring notes to life
Define once: coffee = 4.5
Use anywhere: coffee × 5 = 22.5
Edit the definition and everything recalculates.

■ Built-in calculator
A clean, standard four-function calculator with smart percent
(100+5%=105), sign toggle, and smart repeat.
Live result preview (light gray) shown above the input; tap ⌫ to delete a digit.
After pressing =, the result appears right after the equals sign and the preview
disappears — type a new digit to start a fresh calculation.
press = repeatedly to keep going (5 + 3 = = = → 8, 11, 14),
or press = right after an operator to repeat the last operand (5 + = → 10).

■ Full math, right in your notes
Type `rent + coffee × 30 =` and the answer appears in orange
instantly. Arithmetic, parentheses, percentages (20 + 20 × 15% = 23)
all work inline as you write.
Engineering math is just as easy: trig in degrees (sin(30°) or sin(deg(30)) = 0.5),
scientific functions (sqrt/sin/cos/tan/asin/exp/ln/log2/hypot/mod/cbrt…),
and unit conversion (100 km → mi, 25 °C → °F). Very large or small
results switch to scientific notation automatically.

■ Built-in how-to guide
Not sure where to start? The Settings → About screen now includes a
"How to use notes" guide covering inline = calculation, scientific functions,
angles and cross-line variables — open it and try along.

■ Ready to use on first launch
Ten pre-filled life-example notes (monthly budget, dinner splitting,
trip cost sharing, coffee spending…) ship with the app. Tweak a number
to see how "notes + calculator" works — or just delete them.

■ Why $7 ?
Because you are the customer, not the product:
• No ads — ever
• No tracking — the app requests ZERO permissions, not even internet
• No accounts — your data never leaves your device
• No in-app purchases — pay once, keep forever

■ Modern Android
Clean light and dark themes with orange result highlights, fully offline,
system backup & device-transfer support. Notes body font size is adjustable
(14–30) and applies instantly.

A pen, a page, an answer. That simple.

What’s new

What's new in v1.4.14
Fixed a cursor-jump glitch in the 10-line blank area at the bottom of the note body: previously, typing on any of those blank lines made the cursor jump to the next line after every single character (one character per line). The cursor now stays on the line you type on, so you can keep writing normally.