CashSDKCashSDK

BUILT FOR EDUCATION

The next chapter
starts with your app.

Build a clear path from the first lesson to a premium learning experience. Support trials, course unlocks, and family-friendly plans.

Build your purchase experienceExplore paywalls
Course accessLearning trialsAnnual plans
Make room for curiosity.
THE PURCHASE MODELFree lessons → premium accessentitlement learning_plusactive

How the category prices

Freemium at the top, an annual plan in the middle, power-ups at the peak.

Choose an offer. Try the screen. Follow the purchase from checkout to access.

PURCHASE PLAYGROUNDFictional app · sample offers
01 / THE OFFER

Meet parlo!

Try a purchase. See what happens next.

One purchase flow.
Entirely your experience.
parlo!
12-day streak ✦ +250 XP
YOUR NEXT CONVERSATIONCiao,
mondo!HELLO, WORLD.
You had me at ciao.
Every day, a little closer.12 / 15
Language learning · premium

Say it your way.

Small lessons. Big conversations.

Cancel anytime · Restore purchases
Interactive concept · no real purchase
02 / BEHIND THE SCREEN
PREVIEW EVENT
purchase.started
app
parlo!
product
Annual
status
selected
Store checkout → CashSDK → your app

Original app concepts. Sample prices. Every preview runs locally.

Paywall shapes

The upgrade is part of the experience.

Discover the app. Choose premium. See what opens up.

A DAY INSIDE parlo!

From first tap to all-access.

01Discover
9:41
parlo!
12-day streak ✦ +250 XP
YOUR NEXT CONVERSATIONCiao,
mondo!HELLO, WORLD.
You had me at ciao.
Every day, a little closer.12 / 15
CIAO, MAYA! / DAY 12

Small lessons. Big worlds.

Keep your streak going
A table for two, pleaseUnit 4 · Italian essentials
Your everyday words8 min · Vocabulary
Say it with confidence5 min · Speaking practice

Give them something to love.

02Upgrade
parlo!
12-day streak ✦ +250 XP
YOUR NEXT CONVERSATIONCiao,
mondo!HELLO, WORLD.
You had me at ciao.
Every day, a little closer.12 / 15
Language learning · premium

Say it your way.

Small lessons. Big conversations.

Cancel anytime · Restore purchases

An upgrade that feels at home.

03Enjoy
9:41
parlo!
12-day streak ✦ +250 XP
YOUR NEXT CONVERSATIONCiao,
mondo!HELLO, WORLD.
You had me at ciao.
Every day, a little closer.12 / 15
Premium unlocked
CIAO, MAYA! / DAY 12

Your next chapter is ready.

Keep your streak going
A table for two, pleaseUnit 4 · Italian essentials
Your everyday words8 min · Vocabulary
Say it with confidence5 min · Speaking practice

Make the next tap count.

Original parlo! concept · Interactive screens · No real purchases

Why CashSDK fits learning

One SDK for the whole learning money stack.

Design the offer. Verify the purchase. Keep access in sync.

Paywalls you A/B over the air

Design the Super unlock in the dashboard, publish it without an app release, and change copy, tiers, trial length, and price for any cohort instantly.

Paywall canvasEditing · live
Unlimited projects
Advanced analytics
Annual · $59.99SAVE 40%
Explore

Experiment on price & trial

Run holdouts on the annual-vs-monthly split and the 7-day trial. Measure conversion and revenue per install, not vibes.

Explore

Annual plans & trials, native

Free trials, intro offers, and annual pricing are honored natively on both stores, the annual-heavy model the category runs on.

Explore

Consumable balances

Sell streak freezes, heart refills, and gem packs as spendable balances, granted and burned server-side so a purchase can't be replayed.

Explore

Validated receipts

Every Apple and Google receipt is verified server-side into a clean entitlement, with no receipt server to run.

Explore

Localized pricing, both stores

One catalog prices in local currency across the App Store and Google Play, with trials and intro offers honored natively.

Built for the whole stack

Charge freemium, family, and power-ups from one integration.

3Models: subscriptions, family plans, consumables
1 SDKSwift, Kotlin & REST
0Receipt servers to run
ONE CONNECTED PURCHASE FLOW
CashSDK
CashSDK
Store receipt
pro active
A purchase startsproduct: "pro.yearly"A familiar checkout, in your app.
Illustrative flow no live transactions

Ship a learning paywall that pays off

Your brand, your offers, your purchase flow. Built with CashSDK.

Ship your paywallRead the SDK quickstart →