SpellStack Web — Play the Drop-Merge Word Puzzle in Your Browser

TL;DR: SpellStack now runs right in your browser — no install, no account, just click and play. 👉 hol4b.com/spellstack

Play SpellStack in your browser — no install needed

SpellStack is a casual word puzzle where you drop letters, merge them into words, and rack up points. Until now you could only play it on iOS. As of this week there’s a full browser version at hol4b.com/spellstack — open the link and you’re already playing.

SpellStack web — home screen

How it works in 30 seconds

  • Tap an empty square to place the next letter.
  • Drop a letter on top of another to merge them (T + E = TE).
  • Only prefixes of real English words can merge. TX isn’t the start of anything, so it bounces.
  • When a tile turns green, it’s a valid word — tap it to collect.
  • Longer words score way more. The formula is letters² × 10: TEA = 40 pts, QUEEN = 250 pts, QUARTZ = 360 pts.

It’s one of those games where a round lasts a minute but you keep wanting one more try.

What you get in the browser version

This isn’t a trailer or a teaser — it’s the full game, same rules as the iOS app. What the web build has:

  • The complete game with the same mechanics as iOS
  • Personal best tracking, saved on your device
  • Invite code to bring friends in (yours shows up on the home screen)
  • Score sharing via a clean share card

What I deliberately kept out of the browser version, to keep the first impression clean:

  • No ads. Ever. Your browser is your first impression of SpellStack, and I didn’t want to wreck it.
  • No account, no sign-up. Just play.
  • No tracking. No Google Analytics, no Mixpanel, no pixel — nothing. Scores live in your own browser.

Out of plays? Here’s how to get more

The browser build comes with a daily play budget. When you run out, you have two ways to top up:

  • Invite a friend → +2 plays (up to a daily cap)
  • Share your score → +1 play

Both buttons show up on the end-of-game screen:

SpellStack web — end of game screen

And here’s what your friends see when you tap Share — a Wordle-style card, but for word stacking:

SpellStack — 1,240 pts
🟩🟩🟨🟩🟩⬜ QUARTZ
🟨🟩🟩🟩🟩⬜ VALUES
🟩🟩🟨⬜⬜⬜ TEA

If you want unlimited play, a global leaderboard, and daily puzzles, that’s what the iOS app is for.

Web vs iOS — quick comparison

Feature Web (free) iOS app
Instant play, no install
Plays per day Limited (top up via invite/share) Unlimited
Personal best
Global leaderboard
Daily puzzles
Ads Never AdMob
Languages English English + Korean

See the iOS app in action

Same mechanics, but with unlimited plays, daily puzzles, and a global leaderboard. Here’s 30 seconds of the full app:

Try it now

Send your invite code to a friend who likes word games. Or share your best score and see if they can beat it.

← hol4b.com