★ Proficiency-based learning

Practice math. Unlock rewards.

Open-ended sessions, proficiency that unlocks new problem types, and an optional rewards webhook that plugs into Home Assistant, Slack, or anything else you already use. Built for families.

Requires iOS 16.6+ · iCloud sync · No accounts · No tracking

Category selection
Five categories — each with its own proficiency ladder.
Quiz mid-session with point feedback
Live points feedback — speed-tier multiplier shown on every correct answer.
Setup screen showing proficiency level
Proficiency at a glance — current level, unlocked types, and an interactive example.
Level Up celebration
Real progress, real wins — level-up celebrations only when they're earned.

Why I built this

My kids saw math as annoying — a source of anxiety, not curiosity. We tried flash cards. It was like pulling teeth to get them to practice. The carrot was missing, and the "stick" wasn't working.

What changed things wasn't a bigger reward — it was visible progress. Instant feedback on every answer. Worked examples when something doesn't click. Difficulty that steps up as fluency grows. Kids feel themselves getting better, and that ladder is the real fuel.

The reward system is a bonus on top. If you want to wire screen time, a flashing light, or a printed ticket to the credits they earn, the webhook is there. But the daily driver isn't the prize — it's the climb.

For a fraction of the cost of a set of flash cards, you solve the incentive problem and the math practice together.

— Bryan, MathNet

Features

Designed around how students actually learn math

Five categories. Per-type proficiency. Adaptive practice. No timers forcing students out before they've thought it through.

🧮

Five categories

Basic arithmetic, number sense, long addition/subtraction, multi-digit multiplication, and long division — each with its own difficulty ladder.

★

Open-ended sessions

No fixed question count or timer. Students answer as many as they like, then end the session. Empty sessions don't count.

🎯

Proficiency ladder

Each problem type tracks its own 30-result rolling window. Three fast-and-correct in a row unlocks the next type instantly.

⚡

Speed multipliers

Points scale with how quickly you answer (2.0× lightning, 1.5× fast, 1.0× on-pace, 0.5× slow). Harder problems pay more per minute.

🎬

Interactive examples

User-controlled step-by-step demos for every category. Students walk through carries, borrows, and partial products at their own pace.

☁️

iCloud sync

Progress syncs across iPhone and iPad in the same iCloud account. No accounts to create. No data leaves your private database.

Rewards (optional)

Turn math practice into anything you want

Earn points → exchange for credits → fire a webhook. You decide what happens when the webhook fires.

1

Answer problems

Each correct answer earns points scaled by difficulty and speed.

2

Bank points

Points accumulate. Exchange any time at a rate you set.

3

Spend credits

Tap Redeem in the Bank view. Each redemption fires your webhook.

4

You decide

Lights, sounds, notifications, screen time — whatever you've wired up.

How it works in detail
Integrations

Plug into the tools your home already runs on

MathNet's redemption webhook is a generic HTTP POST. If a thing can receive a webhook, you can wire it up.

🏠

Home Assistant

Flash the play-room lights, speak a TTS announcement, or unlock the TV when a credit is redeemed.

🧾

Thermal Printer

Print a real paper banknote-style "credit voucher" every time a student redeems. Native or Docker.

🔌

ESP32 / Raspberry Pi

Flip a relay to dispense a treat, light an LED strip, or wire any GPIO into the redeem event.

📲

Pushover / ntfy

Send a push to a parent's phone the moment a credit is earned.

💬

Discord / Slack

Post a celebration message into a family channel.

📡

MQTT

Bridge into existing smart-home infrastructure via a small relay.

🔗

IFTTT / Zapier

Log to Google Sheets, email a parent, or chain anything in their catalogs.

All integrations

Free to try. No ads. No tracking.

Basic Arithmetic is free forever. A one-time in-app purchase unlocks the four advanced categories — Family Sharing supported. No analytics SDKs, no servers we operate. Data lives in your private iCloud database.

Get it on the App Store