Zero Below Zero vs Wool Hit
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
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.
- Extremely challenging gameplay
- Unique circle-based puzzles
- Free levels unlockable
- No hints provided
- Inspired by math puzzles
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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!
Wool Hit
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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
Verdict
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
Both are free to download. Zero Below Zero sells 1 one-off in-app purchase. Wool Hit asks for nothing beyond the download.
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.
| Parameter | Zero Below Zero | Wool Hit |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (6 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Every 6 months | Every 10 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.3 | 13.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 342 MB |
| Age rating | 4+ | 4+ |
| Developer | Omar Fahmy | LADANETA PTE. LTD. |
In-app purchases
Zero Below Zero
- Unlock all levels$3.99
Wool Hit
No in-app purchases









