Comparison

Zero Below Zero vs Wool Hit

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

Head to head
About

Zero Below Zero

A challenging puzzle game with simple mechanics but extreme difficulty. Achieve a perfect score on free levels to unlock the rest at no cost. No hints are provided, requiring strategic thinking to solve each unique circle-based puzzle.

Highlights
  • Extremely challenging gameplay
  • Unique circle-based puzzles
  • Free levels unlockable
  • No hints provided
  • Inspired by math puzzles
Features
Read full description

Don’t let the cute graphics deceive you - this game is HARD. It’s so difficult, that if you get a perfect score on the free levels, you get the rest of the levels for free. The goal sounds easy - all you have to do is make each circle at least zero. The trouble is there are gazillions of moves you can make, and just one will give you a perfect score. Oh, and there are no hints. There are also no ads, subscriptions, tracking, or anything else you wouldn’t want. If you can’t achieve a perfect score on the free levels, you can always admit defeat and pay to unlock the other levels ;) This game is inspired by the dollar game maths puzzle as seen on Numberphile. Don’t expect that to help you though - Zero Below Zero has been made much more difficult!

About

Wool Hit

Features
Read full description

Clear the visual clutter and add a quiet moment to your busy day: just a few spools can turn a chaotic surface into neat blocks of color, giving instant satisfaction. Tap and reel—watch disorder become order in an instant. A few short steps bring a refreshing sense of clarity. ▶ Easy to pick up: look at the model's surface color, tap the matching spool, and the color block is cleared. ▶ Temporary hold strategy: spools tapped by mistake or prepared early go into a holding area and can be released at the right moment; a short wait turns into extra satisfaction. ▶ Rhythm and feedback: every tap gives immediate visual and haptic feedback; the smooth shifts in color quickly put your mind into a relaxed rhythm. ▶ Level variety: models and color schemes range from simple to complex, so brief sessions can both relax you and offer light challenges — the more you tidy, the more natural it feels. Here, actions are short but purposeful; each tidy brings clarity, satisfaction, and a small sense of achievement. Jump in anytime for a round, enjoy the ease and calm of organizing color, and look forward to finishing faster and better next time.

Screenshots

Zero Below Zero4 screens
Wool Hit4 screens

Verdict

The call

The clearest difference is in-app purchases: Wool Hit at none against Zero Below Zero's 1. Wool Hit also leads on update cadence (every 10 days vs every 6 months). Zero Below Zero's advantage is ads (none vs shown). On price, device support and iOS requirement 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. Zero Below Zero sells 1 one-off in-app purchase. Wool Hit asks for nothing beyond the download.

UpkeepUpdate frequency

Zero Below Zero ships an update every 6 months, Wool Hit every 10 days. The most recent releases landed on October 15, 2026 and October 16, 2026 respectively.

Scorecard3 real differences · 7 level
Zero Below Zero versus Wool Hit: the parameters behind the verdict, then further details
ParameterZero Below ZeroWool Hit
PriceFreeFree
Rating5.0 (6 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings6 — better—
Update frequencyEvery 6 monthsEvery 10 days — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS14.313.0 — better
Further details — not scored
Size4 MB342 MB
Age rating4+4+
DeveloperOmar FahmyLADANETA PTE. LTD.

In-app purchases

1 purchases

Zero Below Zero

One-time1
  • Unlock all levels$3.99
None

Wool Hit

No in-app purchases

Questions

Is Zero Below Zero free?
Zero Below Zero is free to download, with in-app purchases available.
Is Wool Hit free?
Wool Hit is free to download, with no in-app purchases.
Do Zero Below Zero or Wool Hit have ads?
Wool Hit shows ads; Zero Below Zero does not.
Which is updated more often, Zero Below Zero or Wool Hit?
Zero Below Zero ships an update every 6 months, and Wool Hit every 10 days. Most recently, Zero Below Zero was updated on October 15, 2026 and Wool Hit on October 16, 2026.

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