X Lines vs Dr. Virus
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
X Lines
This puzzle game challenges your geometric thinking and reasoning skills. Uncross lines by moving nodes to create a clear path. It offers over 200 levels with more planned, suitable for all ages.
- Geometric thinking puzzles
- Over 200 levels
- Clean UI design
- Reasoning and creativity challenges
- Supports iPhone and iPad
- Suitable for all ages
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X Lines is a great geometric thinking and brain exercise puzzle game that will bring you a lot of fun. The clean UI design let you focus on solving puzzles. You need to complete the game with power of reasoning, creativity, and imagination! A lot of challenges! FEATURES: - More than 200 well-designed levels (more levels will be continue to be added). - Both iPhone and iPad are supported - Suit for all age HOW TO PLAY: Just move the nodes so as to uncross the lines and make sure that they don't overlap. Make all lines uncrossed (light blue) to win. Enjoy!
Dr. Virus
A classic falling block puzzle game where players strategically drop colored capsules to eliminate viruses. Progress through levels by clearing the screen and challenge yourself with different game modes.
- Falling block puzzle gameplay
- 20 classic levels
- Challenge mode with online leaderboard
- Practice mode to select levels
- Save and resume games
- Offline and online high scores
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GAME RULES ---------------- Dr. Virus is a falling block puzzle game. The player's objective is to destroy the viruses by using colored capsules that are tossed into the bottle. The player manipulates each capsule as it falls, with the goal being to align similar colors which removes the viruses. The player progresses through the game by eliminating all the viruses on the screen in each level. FEATURES ---------------- + 20 classic levels. + Play with buttons or gesture. + CHALLENGE mode: the player starts at level 0 and submit the score to online leaderboard. + PRACTICE mode: same with class game, the player can select which level to start at. + MINI GAMES: more way to explore, play custom and challenging stages. + Save your current game and play it later. + Offline high scores and online leaderboard. FAN PAGE ------------------ + Facebook: https://www.facebook.com/qastudiosapps + Twitter: https://twitter.com/qastudios
Screenshots
Verdict
The clearest difference is rating: X Lines at 5.0 against Dr. Virus's 2.5. X Lines also leads on update cadence (every 6 days vs every 2 months) and iOS requirement (9.0 vs 12.0). Dr. Virus's advantage is in-app purchases (none vs 1) and ratings volume (24 vs 2). On price, ads, monetization model 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. X Lines sells 1 one-off in-app purchase. Dr. Virus asks for nothing beyond the download.
X Lines holds the better App Store score, 5.0 against 2.5. That said, the two scores are not equally well evidenced: Dr. Virus has 24 ratings behind it against 2, so its average is the more settled of the two.
X Lines ships an update every 6 days, Dr. Virus every 2 months. The most recent releases landed on October 2, 2026 and October 7, 2026 respectively.
| Parameter | X Lines | Dr. Virus |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 2.5 (24 ratings) |
| Positive reviews | — | 18.8% of reviews |
| Number of ratings | 2 | 24 — better |
| Update frequency | Every 6 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 11 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | 景灯 梁 | Quang Duc Vu |
Customer experience
X Lines
Dr. Virus
In-app purchases
X Lines
- Ads removal$2.99
Dr. Virus
No in-app purchases
