Linko vs Challenge World
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Linko
A simple and calming puzzle game designed for relaxation. Players rotate lines on a board to connect them all, offering an easy-to-learn maze-like experience for all ages. The game's revenue supports a stray cat shelter.
- Simple one-finger controls
- Calming maze-like gameplay
- Easy to learn for all ages
- Rotate lines to connect
- Relaxing mind exercise
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Linko is a very simple and calming puzzle game. All you need to prepare to play Linko is your phone and one finger. Linko is not difficult or complicated, so anyone, regardless of age or gender, can enjoy it. Calm your mind and proceed as if solving a simple maze. [How to play] Rotate the lines on the given board to connect them all. Try it right now! + PS: Most of the revenue generated through the game is used for the shelter for stray cats that we manage.
Challenge World
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Challenge World is a cognitive gauntlet built to find your limits. 310 levels. 50+ challenge types. Every session different. You'll face memory grids, rhythm tests, spatial logic, pattern locks, voice challenges, estimation games, reflex traps, and dozens of mechanics you won't see coming. The game shuffles daily the same level plays differently every time. 6 TIERS. RISING DIFFICULTY. Foundation is free. Prove you belong before you touch Synapse, Cortex, Nexus, Zenith, or Apex. Most players don't clear the third tier. A handful reach the top. YOUR IQ MOVES. Every level you pass raises your IQ score. Every fail costs you. Hints carry a penalty. The leaderboard is honest no grinding past it. HEAD-TO-HEAD MODE Challenge real players to 1v1 duels. Pick a topic, pick your opponent, prove it live. GAUNTLETS & BOSS LEVELS Every tier ends with a gauntlet 10 challenges, zero resets, zero mercy. One wrong answer sends you back to 1. Boss levels pull from your entire tier history. You don't skip them. Available in English and French.
Screenshots
Verdict
The clearest difference is ads: Challenge World at none against Linko's shown. Challenge World also leads on update cadence (every 5 days vs every 4 weeks). Linko's advantage is iOS requirement (12.0 vs 15.1). 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
Both are free to download. Linko sells 3 one-off in-app purchases and Challenge World sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Linko ships an update every 4 weeks, Challenge World every 5 days. The most recent releases landed on October 14, 2026 and October 4, 2026 respectively.
| Parameter | Linko | Challenge World |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (26 ratings) — better | — |
| Positive reviews | 60.9% of reviews | — |
| Number of ratings | 26 — better | — |
| Update frequency | Every 4 weeks | Every 5 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 158 MB | 88 MB |
| Age rating | 4+ | 12+ |
| Developer | 1PixelStudio Co. | Eric Martial Kameni |
In-app purchases
Linko
- Donate low price.$4.99
- Donate medium price.$19.99
- Donate high price.$44.99
Challenge World
- Synapse Tier$0.99
- Cortex Tier$0.99
- Nexus Tier$0.99
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- Zenith Tier$0.99
- Apex Tier$0.99
- Head-to-Head Mode$0.99
