Stackdown — Dig Six Words Out of the Stack

🧱 Stackdown

Thirty letter tiles, piled four layers deep. Six five-letter words are buried inside — pick the exposed tiles in order and dig them all out.

Download on theApp Store

Live demo: watch a word get dug out of the stack.

How it works

Only exposed tiles can be picked — a tile is stuck until everything resting on top of it is gone. Taking one may free the tiles underneath.
Spell the word in order. Letters go into the rack exactly as you tap them; get all five right and the word clears off the stack.
There is only ever one word that fits at any moment — and only one set of tiles builds it. If nothing works, look for a tile you haven't freed yet.
Stuck? Swipe for the hint ladder. First swipe reveals the word's clue; swipe again and the game lights up the very tile to pick next. Hints cost stars, never the game.
Clear all six words and the stack comes down. One fresh stack every day — plus a 90-day archive and 300 practice stacks.

Why Stackdown

🧩 A fair puzzle, every day

Every stack is machine-verified before it ships: exactly one valid word at every step, no dead ends, no "that's a real word!" rejections. If you're stuck, the answer is findable — promise.

💡 A hint ladder, not a spoiler

A clue first, then tile-by-tile guidance if you need it. You always finish the dig yourself — the game never just hands you the answer.

🔥 Streaks & twenty badges

A streak flame that celebrates every daily clear, plus a badge wall that stretches from your first dig to a 100-day run.

🗓️ 90 days of back catalogue

Missed a few days? The three most recent stacks are always free, and any older one unlocks forever with a single short ad.

🤫 Ads that behave

Nothing interrupts a puzzle mid-dig, and one optional purchase removes every ad forever — no subscription, ever.

✈️ Works anywhere

Fully offline — every stack ships inside the app. Play on the subway, on a plane, or in bed. Dark mode included.

Privacy Policy

Effective date: August 12, 2026

Stackdown ("the app") is developed and published by the developer listed on our App Store page. This policy explains what information the app handles and how.

No account, local first

The app requires no account and no sign-in. Your puzzle progress, statistics, streaks, achievements, and settings are stored locally on your device and are not transmitted to us.

Advertising

The free version shows ads served by Google AdMob. If you grant the iOS tracking permission, AdMob may use your device's advertising identifier to show more relevant ads; if you decline, ads are shown without tracking. See Google's Privacy Policy for details. Purchasing "Remove Ads" removes all advertising from the app.

Analytics

We use Google Firebase Analytics to collect anonymous, aggregated usage data (for example, which screens are used and how often the app crashes). This helps us improve the app and is not used to identify you.

Purchases

In-app purchases are processed entirely by Apple. We never see or store your payment information.

Children

The app is a general-audience word game and is not directed at children under 13. We do not knowingly collect personal information from children.

Changes & contact

If this policy changes, the updated version will be posted on this page with a new effective date. Questions? Email wuyuping38@gmail.com.

Support

Found a bug, have a feature request, or just want to say hi? Email wuyuping38@gmail.com — screenshots always help.