Comparison

24 Spell vs XON24 Duel

Price, ratings, monetisation and update history for both games, side by side โ€” with what reviewers say about each.

Head to head
About

24 Spell

Features
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24 Spell is a simple but super addictive mental math game. You get 4 numbers and you need to combine them using +, -, ร—, and / to get exactly 24. Itโ€™s a classic riddle, but we made it competitive. - 1v1 Same-Screen Mode: Challenge a friend right there on your phone. Itโ€™s a head-to-head race to see whoโ€™s got the fastest brain. - Mental Workout: Forget boring brain trainers. This is fast, intense, and actually helps you get better at math without feeling like homework. - Clean Design: No annoying menus or distractions. Just open the app, hit Start, and you're in the game. The Rules: - Look at your 4 numbers. - Use the operators to reach 24. - Tap "OK" before your friend does. - Win.

About

XON24 Duel

Features
Read full description

XON24 Duel is a fast-paced competitive math game where speed beats everything. You and your opponent get the same 4 numbers. Your goal is simple: combine them using +, โˆ’, ร—, and รท to make exactly 24. Features Real-Time Duel โ€“ Both players solve the same puzzle. The fastest correct answer wins. Train Your Brain โ€“ Improve mental math, logic, and pattern recognition while having fun. Hundreds of Unique Puzzles โ€“ Every match feels different. How to Play - Look at the 4 numbers. - Use +, โˆ’, ร—, รท and parentheses if needed. - Make exactly 24. - Submit your answer before your opponent. - Win the round.

Screenshots

24 Spell3 screens
XON24 Duel4 screens

Verdict

The call

24 Spell and XON24 Duel are too close to call on the numbers: across 6 compared parameters โ€” price, update cadence, ads and in-app purchases among them โ€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

24 Spell ships an update every 3 weeks, XON24 Duel every 2 weeks. The most recent releases landed on October 13, 2026 and October 4, 2026 respectively.

ScorecardNo meaningful differences
24 Spell versus XON24 Duel: the parameters behind the verdict, then further details
Parameter24 SpellXON24 Duel
PriceFreeFree
Update frequencyEvery 3 weeksEvery 2 weeks โ€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone
Requires iOS17.617.6
Further details โ€” not scored
Size20 MB22 MB
Age rating4+4+
DeveloperIJ birojs SIAHOLPLANT BEHEER B.V.

In-app purchases

None

24 Spell

No in-app purchases

None

XON24 Duel

No in-app purchases

Questions

Is 24 Spell free?
24 Spell is free to download, with no in-app purchases.
Is XON24 Duel free?
XON24 Duel is free to download, with no in-app purchases.
Do 24 Spell or XON24 Duel have ads?
Neither 24 Spell nor XON24 Duel shows ads.
Which is updated more often, 24 Spell or XON24 Duel?
24 Spell ships an update every 3 weeks, and XON24 Duel every 2 weeks. Most recently, 24 Spell was updated on October 13, 2026 and XON24 Duel on October 4, 2026.

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