Comparison

Criminal Case vs Diamond Quest

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Criminal Case

Engage in a captivating detective adventure by investigating crime scenes, gathering clues, and interrogating suspects. Analyze evidence to uncover the truth and bring murderers to justice in a grim city. Prove your detective prowess in this immersive hidden object game.

Highlights
  • Investigate crime scenes
  • Examine and analyze clues
  • Interrogate witnesses and suspects
  • Solve murder cases
  • Play with friends
  • Analyze evidence
Features
Currently charting
Read full description

A murder has been reported in Grimsborough, Detective. Grab your badge — the Chief is waiting. Criminal Case is the original hidden object detective game: the award-winning phenomenon that has turned more than 100 million players into detectives since 2012. Search crime scenes for clues, examine the evidence, interrogate the suspects — and when the proof is solid, arrest the killer yourself. INVESTIGATE CRIME SCENES Every case starts at the scene of the crime. Search gorgeous hand-drawn locations for hidden objects and vital clues, race the clock for the best score, and earn the stars that move your investigation forward. RUN THE LAB Take your findings to the forensics team. Analyze samples, decode messages, reconstruct torn documents and match fingerprints. In Grimsborough, every detail talks — if you know how to listen. INTERROGATE THE SUSPECTS Bring witnesses and suspects in for questioning. Compare their statements with the facts, catch them lying, and profile your killer trait by trait until only one name is left. ARREST THE KILLER Most mystery games end when you find the last object. Criminal Case is where it gets serious: match the evidence to your suspects and put the right one behind bars. Get it wrong, and a killer walks free. ONE CITY. 56 CASES. ONE CONSPIRACY. From the smokestacks of the Industrial Area to the runways of the Airport, the six districts of Grimsborough hide 56 murder cases — and the deeper you dig, the clearer it becomes that they are all connected. THE ORIGINAL, SINCE 2012 Facebook Game of the Year 2013. More than 100 million detectives worldwide. The classic that defined crime investigation games on mobile — still updated, still free, still one of a kind. Played back in the day? Welcome back, partner. Jones kept your desk exactly as you left it. BETTER WITH FRIENDS Connect with your friends to team up on investigations, compare your detective skills on the leaderboards, and send each other energy and gifts. THE FIRST OF 8 SEASONS Grimsborough is where the saga begins. Once you have cleaned up this city, seven more seasons of Criminal Case are waiting for you — from Pacific Bay all the way to Paris. Criminal Case is free to play, with optional in-app purchases (you can disable these in your device settings). The optional Pizza subscription raises your energy bar to 170 and removes ads: 2.99 USD/week (or local equivalent) after a 3-day free trial, auto-renewing unless cancelled at least 24 hours before the end of the current period. Terms of Service: https://prettysimplegames.com/legal/terms-of-service Privacy Policy: https://www.prettysimplegames.com/legal/privacy-policy The killer thinks they got away with it, Detective. Prove them wrong.

About

Diamond Quest

Embark on an addictive adventure as an explorer collecting gems in ancient temples and castles. Navigate treacherous environments, overcome obstacles, and defeat boss monsters to progress through challenging puzzles. Utilize mystic tools to overcome traps and reach the exit.

Highlights
  • Gem collection quests
  • Obstacle and trap navigation
  • Boss monster battles
  • Mystic tool usage
  • Hundreds of puzzles
  • Checkpoint system
Features
Read full description

Be Aware! The most popular and addictive adventure game is now available on the store! In Diamond Quest: Don't Rush!, you are an intrepid explorer, pressing deep into the jungles of Angkor Wat temple, the dungeons of Bavaria castle, and the icy Tibet caves. Your quest is collect a series of gems before heading for an exit that leads to the next room. In your adventure, you must cut through leaves, break cobwebs to find the precious jewels. Gravity takes hold of precariously balanced boulders and sends them toppling down to smash any slow-moving creatures - yourself included. At the end of each map, you must defeat a boss monster to escape for the next locale. Features - Fantastic Visual: Gorgeous HD graphics and lovely sound tracks. - Exciting Gameplay: Tons of different obstacles and traps to get around: snakes, turtles, bombs, monkeys...Some where you have to dive into the water to complete your quest. - Checkpoint: Re-spawn your self at the most recent checkpoint at anytime. - Big Boss: So big and so hard to defeat. Be careful with your life. - Mystic Tools: Use Mystic Hammer to break the weak walls, Mystic Hook to drag things and Freeze Hammer to freeze things. - Challenge Puzzle: Challenge your brain and prove your intelligence with hundred of puzzles to solve. Don't Rush! Otherwise you will be trapped Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Criminal Case4 screens
Diamond Quest4 screens

Verdict

The call

The clearest difference is update cadence: Diamond Quest at weekly against Criminal Case's every 3 months. Diamond Quest also leads on review sentiment (71% vs 60%) and iOS requirement (12.0 vs 15.6). Criminal Case's advantage is ratings volume (36K vs 641) and rating (4.7 vs 4.5). On price, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Criminal Case sells 10 in-app purchases, starting at $2.99 per 7 days and Diamond Quest sells 15 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Criminal Case holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: Criminal Case has 36K ratings behind it against 641, so its average is the more settled of the two. Written reviews complicate that: 60% of Criminal Case's written reviews are positive against 71% of Diamond Quest's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Criminal Case ships an update every 3 months, Diamond Quest weekly. Both last shipped on October 19, 2026.

Scorecard6 real differences · 5 level
Criminal Case versus Diamond Quest: the parameters behind the verdict, then further details
ParameterCriminal CaseDiamond Quest
PriceFreeFree
Rating4.7 (36K ratings) — better4.5 (641 ratings)
Positive reviews59.9% of reviews71.3% of reviews — better
Number of ratings36K — better641
Update frequencyEvery 3 monthsWeekly — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#146 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.612.0 — better
Further details — not scored
Size132 MB186 MB
Age rating17+12+
DeveloperPretty SimpleLuu Trong

Customer experience

Criminal Case

All ratings35,824 ratings
Positive91.6%
Neutral3.0%
Negative5.4%
Written reviews1,031 reviews
Positive59.9%
Neutral10.2%
Negative29.9%

Diamond Quest

All ratings641 ratings
Positive87.2%
Neutral6.1%
Negative6.7%
Written reviews178 reviews
Positive71.3%
Neutral7.3%
Negative21.3%

User reviews

Criminal Case

From 36K App Store ratings

What we love

  • 🎮 Fun and intriguing game
  • 🕵️‍♀️ Interesting crime stories and puzzles
  • 🧠 Challenging and mentally stimulating
  • 🎨 Great graphics and visuals

Room to improve

  • 💰 Excessive ads and in-app purchases
  • ⌚ Slow energy recharge and long wait times
  • 🤖 Poor customer support and lack of response
  • 🔁 Repetitive gameplay and tedious tasks
  • 🐛 Frequent crashes and technical issues

Diamond Quest

From 641 App Store ratings

What we love

  • 👍 Nostalgic feeling
  • ❤️ Childhood memories
  • 🎮 Engaging gameplay
  • 🕹️ Challenging puzzles

Room to improve

  • 🙄 Aggressive ads
  • 🔋 Energy system issues
  • 🐛 Bugs and glitches
  • 💰 Monetization concerns

Bugs and requests

Criminal Case

Reported bugs

3 issues
  • Inability to connect to Facebook and sync progress
  • Disappearing energy and in-game items
  • Freezing and crashing during gameplay

Requested features

4 requests
  • Ability to save energy and progress across sessions
  • More efficient energy system and reduced wait times
  • Improved customer support and communication
  • Reduced reliance on ads and in-app purchases

Diamond Quest

Reported bugs

3 issues
  • Levels not progressing after completing previous ones
  • Certain levels being unbeatable due to bugs
  • Crashes and freezes on newer devices

Requested features

3 requests
  • Original version with classic sound effects
  • Ability to continue progress after updates
  • Improved level progression and unlocking

In-app purchases

10 purchases

Criminal Case

Subscriptions1
  • Pizza3 Days trial$2.997 Days
One-time9
  • Instant Analysis$0.99
  • Ham$0.99
  • Instant Access$0.99
Show 6 more
  • Instant Analysis$1.99
  • Instant Analysis$2.99
  • Pizza$2.99
  • 1 Complete Meal$3.99
  • 1 Burger$4.99
  • 2 Burgers + 1 Free Orange Juice$9.99
15 purchases

Diamond Quest

Subscriptions1
  • Vip Package$4.991 Month
One-time14
  • Pile of Diamonds$0.99
  • Promotion Package 1$0.99
  • Promotion Package 2$1.99
Show 11 more
  • Promotion Package 3$2.99
  • Promotion Package 5$4.99
  • Promotion Package 6$5.99
  • Heap of Diamonds$6.99
  • Promotion Package 7$6.99
  • Promotion Package 8$7.99
  • Promotion Package 10$9.99
  • Bag of Diamonds$13.99
  • Chest of Diamonds$27.99
  • Cart of Diamonds$49.99
  • Diamond Mine$99.99

Questions

Is Criminal Case free?
Criminal Case is free to download, with in-app purchases available.
Is Diamond Quest free?
Diamond Quest is free to download, with in-app purchases available.
Which has better reviews, Criminal Case or Diamond Quest?
Criminal Case is rated higher. Criminal Case averages 4.7 out of 5 from 36K ratings, while Diamond Quest averages 4.5 from 641 ratings.
Do Criminal Case or Diamond Quest have ads?
Both Criminal Case and Diamond Quest show ads.
Which is updated more often, Criminal Case or Diamond Quest?
Criminal Case ships an update every 3 months, and Diamond Quest weekly. Most recently, Criminal Case was updated on October 19, 2026 and Diamond Quest on October 19, 2026.

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