Plague Inc. vs Memory Lines
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Plague Inc.
A strategic simulation game where you evolve a deadly pathogen to infect the world and end humanity. Adapt your plague against global defenses and master different disease types to achieve victory. It's a high-stakes battle of strategy against the entire planet.
- Evolve deadly global plagues
- Adapt against human defenses
- Master 12 disease types
- Infect 50+ countries
- Hundreds of traits to evolve
- Daily Diseases and Outbreak Mode
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Can you infect the world? Plague Inc. is a unique mix of high strategy and terrifyingly realistic simulation. Your pathogen has just infected 'Patient Zero'. Now you must bring about the end of human history by evolving a deadly, global Plague whilst adapting against everything humanity can do to defend itself. Brilliantly executed with innovative gameplay and built from the ground up for iPhone & iPad, Plague Inc. evolves the strategy genre and pushes mobile gaming (and you) to new levels. It’s You vs. the world - only the strongest can survive! ◈◈◈ #1 top game globally with well over a billion games played ◈◈◈ Plague Inc. is a global hit with over a million 5 star ratings and features in newspapers such as The Economist, New York Post, Boston Herald, The Guardian and London Metro! The developer of Plague Inc. was invited to speak at the CDC in Atlanta about the disease models inside the game! ▶ “The game creates a compelling world that engages the public on serious public health topics” – The Centers for Disease Control and Prevention ▶ "Plague Inc: The Cure encapsulates the complexities of a global pandemic response and highlights how crucial international collaboration is needed to address such a threat.” – Coalition for Epidemic Preparedness Innovations ▶ “Best Tablet Game” - New York Daily News ▶ “Plague Inc. will snag your attention in all the right ways and keep it there” - Touch Arcade ▶ “No denying Plague Inc.'s high-level of quality” - Modojo ▶ “Plague Inc. should not be as much fun as it is” – London Metro ▶ “Will leave you hoping to destroy the world, all in the name of a bit of fun” – Pocket Lint ▶ “Plague Inc.'s gameplay is infectious” - Slide to Play ▶ Winner – “Overall Game of the Year” – Pocket Gamer ▶ “Killing billions has never been so fun” – IGN ◈◈◈ Features: ● Stunning retina graphics with a highly polished interface (Contagion guaranteed) ● Highly detailed, hyper-realistic world with advanced AI (Outbreak management) ● Comprehensive in-game help and tutorial system (I am Legendarily helpful) ● 12 different disease types with radically different strategies to master (12 Monkeys?) ● Full Save/Load functionality (28 Saves Later!) ● 50+ countries to infect, hundreds of traits to evolve and thousands of world events to adapt to (Pandemic evolved) ● Full game support for scoreboards and achievements ● Expansion updates add the mind controlling Neurax Worm, the zombie producing Necroa Virus, Speed Runs and real life Scenarios! ● Can you save the world? Take control and stop a deadly global plague in our biggest expansion yet! ● Take on Daily Diseases, earn powerful upgrades and compete against the world in Outbreak Mode! Localised in English, German, Spanish, Brazilian Portuguese, Italian, French, Japanese, Korean, Simplified Chinese, Traditional Chinese and Russian. (more coming soon) P.S. Give yourself a pat on the back if you got all the themed literature references! Special sale price to celebrate being one of the most popular paid iPhone games ever! ◈◈◈ Like Plague Inc. on Facebook: http://www.facebook.com/PlagueInc Follow me on Twitter: www.twitter.com/NdemicCreations
Memory Lines
Test your visual memory and focus by memorizing and redrawing glowing patterns before they disappear. Engage in challenging single-player puzzles or compete against others worldwide in real-time multiplayer battles. Track your progress and unlock rewards as you sharpen your brain.
- Visual memory challenges
- Brain training puzzles
- Multiplayer brain battles
- Offline solo gameplay
- Daily rewards and streaks
- Achievements and progression
- Replay export and sharing
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Can you memorize the pattern before time runs out? Memory Lines is an addictive brain training puzzle game that tests your visual memory, focus, concentration, and pattern recognition skills. Watch glowing patterns, memorize the connections, and redraw every line perfectly before they disappear. Designed for players who enjoy memory games, brain puzzles, concentration challenges, and competitive multiplayer experiences. Easy to play. Hard to master. VISUAL MEMORY GAMEPLAY Each level presents a unique pattern made of connected dots and lines. You only have a few seconds to study the puzzle before it vanishes. Can you remember every connection? Redraw the pattern perfectly to build combo streaks, earn rewards, and improve your Brain Age score. Train your: • Visual memory • Brain speed • Focus and concentration • Pattern recognition • Accuracy and reaction skills ENDLESS BRAIN PUZZLES Play through hundreds of increasingly difficult levels. • More dots • More connections • Faster memorization timers • Random layouts at advanced stages Perfect for casual players and hardcore puzzle game fans alike. TIMER MODE Challenge yourself in a fast-paced 60-second memory sprint. Solve as many visual puzzles as possible before time expires. Skip difficult puzzles, maintain perfect combos, and beat your highest score. LIVE MULTIPLAYER PVP Compete against real players worldwide in live brain puzzle battles. QUICK MATCH • Join public multiplayer contests • Compete in 1, 2, or 3 minute matches • Climb live leaderboards PLAY WITH FRIENDS • Create private rooms • Share room codes instantly • Challenge friends in real time Win by achieving the highest combo streaks and fastest solve times. BRAIN AGE AND ANALYTICS Track your performance with advanced brain training analytics. • Brain Age score • Accuracy tracking • Speed analysis • Personal records • Activity calendar • Performance statistics Watch your memory skills improve over time. ACHIEVEMENTS AND REWARDS Unlock achievements, trophies, coins, and rewards as you progress. • Daily streak rewards • Mystery Boxes • Combo bonuses • Hidden achievements • Skill milestones CUSTOM THEMES Unlock premium visual themes including Neon Tokyo, Cyberpunk Grid, Cosmic Void, Cherry Blossom, Ocean Depth, and Arctic Aurora. SHARE YOUR BEST RUNS Replay perfect combo runs and export gameplay videos to share with friends and social media. FEATURES • Brain training puzzles • Visual memory challenges • Multiplayer brain battles • Competitive leaderboards • Offline solo gameplay • Daily rewards and streaks • Achievements and progression • Replay export and sharing • No pay-to-win mechanics If you enjoy memory games, brain training apps, puzzle games, concentration challenges, logic puzzles, or competitive multiplayer games, Memory Lines is the perfect challenge for your brain. Download now and discover how sharp your memory really is.
Screenshots
Verdict
The clearest difference is price: Memory Lines at Free against Plague Inc.'s $0.99. Memory Lines also leads on in-app purchases (none vs 10) and update cadence (every 6 days vs every 2 months). Plague Inc.'s advantage is ads (none vs shown) and chart position (#1 vs unranked). On 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
Memory Lines is free to download; Plague Inc. costs $0.99 up front. Plague Inc. sells 10 one-off in-app purchases. Memory Lines asks for nothing beyond the download.
Plague Inc. ships an update every 2 months, Memory Lines every 6 days. The most recent releases landed on October 18, 2026 and October 15, 2026 respectively.
| Parameter | Plague Inc. | Memory Lines |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.8 (167K ratings) — better | — |
| Positive reviews | 76.1% of reviews | 100.0% of reviews — better |
| Number of ratings | 167K — better | — |
| Update frequency | Every 2 months | Every 6 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Best chart rank | #1 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 116 MB | 46 MB |
| Age rating | 9+ | 12+ |
| Developer | Ndemic Creations | Vinay Kumar |
Customer experience
Plague Inc.
Memory Lines
Bugs and requests
Plague Inc.
Reported bugs
4 issues- Inability to restore purchased content
- Glitches with certain disease types
- Inconsistent DNA point rewards
- Sudden difficulty spikes on normal mode
Requested features
5 requests- Multiplayer mode (player vs player)
- More realistic cure distribution and development
- Ability to customize game scenarios
- Expanded free content without paywall
- Improved progression for free-to-play users
Memory Lines
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Plague Inc.
- Unlock Virus$0.99
- Neurax Worm Expansion Pack$1.99
- Necroa Virus Expansion Pack$1.99
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- Simian Flu Expansion Pack$1.99
- Shadow Plague Expansion Pack$1.99
- Unlock 7 Standard Plagues$2.99
- Scenario Pack$2.99
- Unlock All Genes$7.99
- Unlock Cheats$9.99
- Plague Pack$12.99
Memory Lines
No in-app purchases
Questions
Is Plague Inc. free?
Is Memory Lines free?
Do Plague Inc. or Memory Lines have ads?
Which is updated more often, Plague Inc. or Memory Lines?
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