XXI vs Link Segments
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
XXI
This puzzle game challenges you to arrange numbered gems on a board so that each row and column sums to 21. Progress through 200 levels of increasing difficulty, utilizing a special gem that can be 1 or 11. Compete with others via leaderboards and share your achievements.
- 200 unique puzzles
- Special gem mechanics
- Game Center achievements
- Leaderboard competition
- Beautiful graphics and sound
- Universal app support
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XXI puzzles require a sum of 21 in every row and column. Move the gems around on the board until a solution is found. All gems have a unique numerical value, but watch out for the special gem that can be either a 1 or 11. Puzzles get harder as you progress your way through all 200 levels. Can you become a XXI champion? FEATURES - 200 Unique & Challenging Puzzles - Game Center Achievements (V, X, L, C, CC) - Game Center Leaderboard for Highest Level - Beautiful Music, Sounds, and Retina Graphics - Universal App looks Great on iPhone and iPad - Share Solution Photos with Friends Thanks for playing XXI by TMSOFT and good luck! Website: https://www.tmsoft.com/xxi/
Link Segments
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Hello Friends, Let play a simple and fun puzzle game. There are segments of some different shapes: cross, straight line, ... just touch to turn it and make all of them connect together. Feel free to give your idea about the game here.
Screenshots
Verdict
The clearest difference is ads: Link Segments at none against XXI's shown. XXI's advantage is iOS requirement (11.0 vs 13.0). On price, update cadence, 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. Neither carries in-app purchases, so what you see is what you pay.
XXI ships an update every 17 months, Link Segments every 16 months. The most recent releases landed on August 13, 2026 and September 19, 2026 respectively.
| Parameter | XXI | Link Segments |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (15 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 15 — better | — |
| Update frequency | Every 17 months | Every 16 months — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 27 MB | 94 MB |
| Age rating | 4+ | 12+ |
| Developer | TMSOFT | Hieu Hoang |
In-app purchases
XXI
No in-app purchases
Link Segments
No in-app purchases
