Comparison

Irrationals vs Collatz Hailstone Link

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

Head to head
About

Irrationals

Challenge your math skills by estimating irrational numbers using guided formulas. Earn certificates for your achievements and share them with friends.

Highlights
  • Estimate irrational numbers
  • Guided math formulas
  • Earn certificates
  • Share achievements
Features
Read full description

Now it's time to math challenge ! you can enter Irrational Numbers world in this game and try to estimate them with guide math formulas . if you game over you will get a Certificate that indicated you have estimated selected irrational numbers up to the numbers that you estimated and also you can share it with your friends . but the Luxury Certificate will be given to you only when you finished the estimating selected irrational number completely !!! Good Luck!

About

Collatz Hailstone Link

Features
Read full description

Collatz Hailstone Link — a relaxing number-merge puzzle built on one of math's most famous mysteries: the Collatz conjecture (the "3n+1" problem). Drag and merge numbered tiles, watch each sum bounce through the hailstone sequence, and chase the highest — or lowest — final number you can reach. Easy to learn in seconds, deep enough to keep you coming back for a better score. HOW TO PLAY • Drag one tile onto another (or tap one, then another) to merge them. • The two values are added, then the Collatz rule is applied to the sum: - Even sum → divide by 2 (the tile turns blue) - Odd sum → multiply by 3 and add 1 (the tile turns orange) • Chain the same color in a row to build a streak bonus. • Keep merging until a single tile remains. Push that last value as high — or as low — as you can! FEATURES • Pure one-finger gameplay — merge with a drag or a tap. • 7 board shapes: Square, Hexagon, Triangle, and four hybrid layouts. • Three-part scoring: turn points, streak bonuses, and a final bonus based on your last number. • Undo your recent moves to plan the perfect chain. • Records screen — sort your runs by score, max value, final value, and date. • Global online leaderboards — compete on both High Score and Final Max. • Light & Dark themes. • English & Korean language support. • Play offline, anywhere — no account required. WHY YOU'LL LOVE IT A quick puzzle for a coffee break, a brain teaser for math lovers, and a satisfying score-chaser for everyone in between. Every board is a fresh little puzzle in number theory — no two runs feel the same. Merge the numbers. Ride the hailstones. Beat your best.

Screenshots

Irrationals4 screens
Collatz Hailstone Link4 screens

Verdict

The call

The clearest difference is ads: Irrationals at none against Collatz Hailstone Link's shown. Irrationals also leads on update cadence (daily vs weekly) and iOS requirement (10.0 vs 14.0). On price, in-app purchases and device support there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Irrationals ships an update daily, Collatz Hailstone Link weekly. The most recent releases landed on October 3, 2026 and October 9, 2026 respectively.

Scorecard3 real differences · 7 level
Irrationals versus Collatz Hailstone Link: the parameters behind the verdict, then further details
ParameterIrrationalsCollatz Hailstone Link
PriceFreeFree
Rating5.0 (4 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings4 — better—
Update frequencyDaily — betterWeekly
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS10.0 — better14.0
Further details — not scored
Size54 MB118 MB
Age rating4+4+
DeveloperSaeed RahmatolahiKwangHo Yun

In-app purchases

None

Irrationals

No in-app purchases

None

Collatz Hailstone Link

No in-app purchases

Questions

Is Irrationals free?
Irrationals is free to download, with no in-app purchases.
Is Collatz Hailstone Link free?
Collatz Hailstone Link is free to download, with no in-app purchases.
Do Irrationals or Collatz Hailstone Link have ads?
Collatz Hailstone Link shows ads; Irrationals does not.
Which is updated more often, Irrationals or Collatz Hailstone Link?
Irrationals ships an update daily, and Collatz Hailstone Link weekly. Most recently, Irrationals was updated on October 3, 2026 and Collatz Hailstone Link on October 9, 2026.

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