CashSDKCashSDK
For kids & family apps

Monetize the family, not the child.

Kids apps can’t run behavioral ads — so family subscriptions and one-time unlocks are the only compliant way to earn. CashSDK ships both from one integration, always behind a parental gate, with validated receipts and zero third-party tracking. Built for Apple’s Kids Category and Google Play Families.

Family subscriptions · one-time unlocks · parental gate — one SDK, both stores.

How the category prices — compliantly

Subscriptions and one-time unlocks, always behind a gate.

Because the Kids Category bans behavioral ads and third-party tracking, the top learning and play apps earn two ways: recurring family subscriptions and buy-once unlocks — with every purchase reached through a parental gate. Here is how the category really charges.

Recurring

Family subscriptions

The revenue base for learning apps: one account covering several kids, with annual billed up front to lock in the year.

  • ABCmouse ~$14.99 / mo or ~$45–60 / yr, up to 3 kids
  • Lingokids ~$14.99 / mo; Sago Mini World $6.99 / mo · $59.99 / yr
  • HOMER $7.99 / mo · $59.99 / yr; free trials are the norm
  • Annual is featured — it roughly halves the effective monthly

ABCmouse · Lingokids · Sago Mini · HOMER

One-time

Unlocks & paid apps

Buy-once content instead of a subscription — packs bought inside a free app, or a premium app that costs money up front and shows no ads.

  • Toca Boca World: free base, one-time IAP unlocks ~$1–6
  • Originator’s Endless Alphabet: paid app ~$8.99, no ads, no IAP
  • Pok Pok: $3.99 / mo, $29.99 / yr, or a $49.99 lifetime unlock
  • Classic Toca Life apps sold as one-time ~$3.99 purchases

Toca Boca · Originator · Pok Pok

Compliance

Gate it, don’t ad-target it

The Kids Category bans the behavioral-ad playbook, so purchases sit behind a parental gate and revenue comes from IAP — not from tracking children.

  • Apple §1.3: purchases & link-outs must sit behind a parental gate
  • No third-party behavioral ads or trackers to kids (Apple + Google)
  • Google Play Families: no interest-based ads, certified ad SDKs only
  • COPPA: no persistent identifiers (IDFA / AAID) tied to children

Khan Academy Kids · Duolingo ABC · PBS Kids (free, no ads)

Market context only. Prices are representative US list prices for 2025–26 and vary by region, plan length, and promotion; app names are trademarks of their owners and are cited to describe the category, not affiliation. Compliance rules are quoted from Apple’s App Store Review Guidelines §1.3 and Google Play’s Families policy — see the research notes co-located with this page.

Paywall shapes

The gate and every paywall, rendered from our own components.

A parental gate, a family subscription, a one-time pack unlock, and a lifetime unlock — the same primitives, themed for kids and reached through the gate. These are CashSDK’s unbranded chrome, never a copy of any app’s screen.

Parental gate

Ask a grown-up to continue

This keeps purchases safely behind a parent — an App Store Kids Category requirement.

What is

7 × 4 ?

21
28
32

…or press and hold for 3 seconds

Continue to purchase

No behavioral ads · No third-party tracking

Parental gate

An adult-level task stands in front of every purchase — the Kids Category convention, built in.

Parent-approved
Family plan

Unlock the full learning library

1,000+ lessons, books & games
Up to 3 kids on one account
Progress reports for grown-ups
No ads — ever
YearlyBEST VALUE
/ yr · just $5.00 a month
$59.99
6 months
$5.83 / mo
$34.99
Monthly
billed monthly
$9.99
Start free trial

Cancel anytime · Purchase behind a parental gate

Family subscription

One account for the whole family, annual featured — the model ABCmouse, Lingokids, and Sago Mini all use.

Parent-approved
Add to your world

Unlock new places to play

Buy once, keep forever — new rooms, characters, and outfits.

Everything bundleBEST VALUE
all packs · one-time
$19.99
Home & pets pack
one-time · no ads
$5.99
Character pack
one-time · no ads
$2.99
Unlock pack

One-time purchase · Behind a parental gate

One-time unlock

Buy a room, a pack, or a character once and keep it forever — the Toca Boca World shape, no subscription.

Parent-approved
One-time unlock

Own it forever, no subscription

One payment unlocks every letter, word, and puzzle. No ads, no IAP.

Lifetime · whole familyMOST POPULAR
one-time · every future update
$49.99
Full app unlock
one-time · this app
$8.99
Restore purchase
already bought it?
Free
Unlock forever

One-time purchase · Behind a parental gate

Lifetime unlock

A single payment unlocks the whole app for good — the premium paid-app model, ad-free.

Why CashSDK fits kids & family

Compliance-native billing for the Kids Category.

Paywalls, experiments, one-time unlocks, and validated receipts — the pieces a family app needs to charge without ads, without a receipt server, and without ever tracking a child.

Built for the Kids Category

Earn compliantly, from one integration.

0
Compliant models: subscriptions & one-time unlocks
0 SDK
iOS, Android, React Native & Flutter
0
Behavioral ads · trackers · receipt servers

Ship a kids paywall you can defend in review

Family subscriptions, one-time unlocks, a built-in parental gate, validated receipts, and zero third-party tracking — in one SDK. Start free and ship your first paywall this afternoon.