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.

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:

And here’s what your friends see when you tap Share — a Wordle-style card, but for word stacking:
🟩🟩🟨🟩🟩⬜ 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
- 🎮 Play in browser: hol4b.com/spellstack
- 📱 Get the iOS app for the full experience — unlimited plays, daily puzzles, global leaderboard.
Send your invite code to a friend who likes word games. Or share your best score and see if they can beat it.

