Comparison

Hidden City vs Blind Opera

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

Head to head
About

Hidden City

Embark on a thrilling detective adventure to rescue a friend from a mysterious phantom city. Solve puzzles, explore dark dungeons, and battle strange creatures as you uncover secrets and confront evil.

Highlights
  • Hidden object scenes
  • Quests and puzzles
  • Dungeon exploration
  • Combat against monsters and cults
  • Offline play
  • Friend assistance
Features
Read full description

Hidden City is a hidden object detective adventure for players who enjoy cozy mystery games, search-and-find puzzles, story-rich quests and richly detailed scenes. Explore a mystical Victorian city, find hidden objects, follow clues, solve puzzles, meet unique characters and uncover magical secrets in the City of Shadows. Your next investigation awaits in a game where detective cases, beautiful search scenes, puzzle variety and magical events blend into one captivating mystery story. Look closer, collect clues and discover why every object, note and artifact matters. What will you investigate? Search atmospheric scenes filled with hidden items, evidence, notes, artifacts, keys, symbols, curiosities and visual clues. Every location invites careful observation and rewards players who love to find meaningful details in beautiful environments. Explore foggy streets, ornate halls, manor-like rooms, curious shops, gardens, arcades, laboratories and magical city districts. Each place supports the mystery and turns object search into part of the investigation. Which search modes can you play? Hidden City keeps the main investigation fresh with different modes designed to test your observation skills: • Words mode: Classic hidden object searching using text lists. • Silhouettes mode: Visual challenges based on object shapes. • Night mode: Focused searches in dim scenes using a spotlight. • Pairs mode: Matching identical or logically related objects to test your attention. These modes support players who enjoy search-and-find adventures, visual puzzles, detective games and finding hidden items through careful observation. Are there mini-games and puzzles? Yes. The core search mechanics are supported by puzzle modes that add variety without taking over the main experience. Take a break from the investigation and play through: • Spot the difference: Compare two scenes using sharp observation. • Match-3 levels: Crystal and gem matching for satisfying puzzle breaks. • Brain teasers: Logic mini-games, memory challenges and story-driven riddles. This mix works well for players who want a detective game with brain teasers, a mystery puzzle with clues or a search-and-find adventure with match-3 elements. How does the story unfold? Follow narrative-driven quests, character stories, special cases and event investigations. Assemble artifact collections, solve anomalies, complete requests and unlock rewards that help you continue your detective journey. Every quest connects detailed scenes, puzzle challenges, magical discoveries and story progression into one polished mystery adventure. Play Hidden City your way • Play offline: Continue your investigation anywhere, even without an internet connection. • Follow the story: Return to character quests, detective cases and magical events as your mystery unfolds. • Regular updates: Discover new cases, quests, search scenes and special events added over time. • Cross-device sync: Save your progress and switch between your devices. While this game is absolutely free to play, you have the ability to unlock optional bonuses via in-app purchases from within the game. You may disable in-app purchases in your device settings. You can play this game even if you’re offline! Game available in: English, French, German, Italian, Japanese, Korean, Portuguese, Brazilian Portuguese, Russian, Simplified Chinese, Traditional Chinese, Spanish, Ukrainian. ____________________________ Sign up now for a weekly round-up of the best from G5 Games! https://www.g5.com/e-mail ____________________________ Download more great games here: https://store.g5.com G5 Games — World of Adventures™! Collect them all! Search for ""g5"" in the App Store! ____________________________ Visit us: https://www.g5.com Watch us: https://www.youtube.com/g5enter Find us: https://www.facebook.com/HiddenCityGame/ Join us: https://www.instagram.com/hiddencity_ Follow us: https://x.com/g5games

About

Blind Opera

Transform your music library into immersive, reactive visual journeys. Explore dynamic worlds generated by your songs, featuring racing, target shooting, and relaxing modes.

Highlights
  • Music-generated courses
  • Reactive visual effects
  • Target gameplay and scoring
  • Variant Mode
  • Rewind Mode
  • Relaxation Mode
Features
Read full description

BLIND OPERA Your music becomes the ride. Blind Opera is a music-driven experience that transforms your own compatible audio files into neon worlds built around the music. Choose a song and Blind Opera analyzes it before you play, using its rhythm, energy, melody and musical structure to shape the journey ahead. The track twists, climbs and turns with the music while glowing scenery, tunnels, targets and world events surround you. Change the song and you change the ride. IMPORTANT: PLEASE READ BEFORE PURCHASING Blind Opera cannot use songs from an Apple Music subscription, including songs downloaded to your device for offline listening. Blind Opera needs access to the underlying audio data of a song so it can analyze the entire track and build the experience around it. Apple Music subscription downloads are DRM-protected, and Apple does not provide third-party apps access to the audio data Blind Opera requires for this analysis. Downloading an Apple Music subscription song to your device does not make it compatible with Blind Opera. Blind Opera is designed to work with compatible, unprotected audio files that you own and can access through Files. EVERY SONG BUILDS A DIFFERENT WORLD Blind Opera doesn’t simply play a prerecorded level alongside your music. Your song influences the experience itself. Its musical characteristics help determine the movement of the course and the world that forms around you, creating a different journey for different music. A quiet passage can feel completely different from an explosive one. Change genres, change songs, or choose something unexpected and see where the music takes you. THREE WAYS TO EXPERIENCE YOUR MUSIC NORMAL The core Blind Opera experience. Ride through a world generated around your chosen song, navigate the course, hit targets and chase a high score. VARIANT Experience your music through an alternate interpretation with its own visual identity. REWIND Turn the experience inside out with a reversed journey and inverted visual world. A WORLD THAT WAKES UP WITH THE MUSIC Race through glowing tunnels, sweeping curves and strange geometric landscapes. Encounter dynamic scenery and events as the world builds itself around your journey. No two songs have exactly the same musical fingerprint, and Blind Opera uses those differences to make each ride its own. BUILT FOR HEADPHONES Blind Opera is as much about listening as watching. Put on your headphones, choose a compatible song you know by heart, and experience it from a completely different perspective. BLIND OPERA Choose a song. Follow the music. Ride the unknown.

Screenshots

Hidden City4 screens
Blind Opera4 screens

Verdict

The call

The clearest difference is price: Hidden City at Free against Blind Opera's $3.99. Hidden City also leads on ratings volume (95K vs 1) and chart position (#125 vs unranked). Blind Opera's advantage is rating (5.0 vs 4.3) and in-app purchases (none vs 10). On update cadence, device support and iOS requirement 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

Hidden City is free to download; Blind Opera costs $3.99 up front. Hidden City sells 10 one-off in-app purchases. Blind Opera asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Blind Opera holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Hidden City has 95K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Hidden City ships an update every 9 days, Blind Opera weekly. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

Scorecard7 real differences · 4 level
Hidden City versus Blind Opera: the parameters behind the verdict, then further details
ParameterHidden CityBlind Opera
PriceFree — better$3.99
Rating4.3 (95K ratings)5.0 (1 ratings) — better
Positive reviews72.3% of reviews—
Number of ratings95K — better1
Update frequencyEvery 9 daysWeekly — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
Best chart rank#125 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS15.015.0
Further details — not scored
Size320 MB108 MB
Age rating9+4+
DeveloperG5 Entertainment ABLee Boats

Customer experience

Hidden City

All ratings95,045 ratings
Positive85.6%
Neutral10.4%
Negative4.0%
Written reviews2,587 reviews
Positive72.3%
Neutral10.7%
Negative17.0%

Blind Opera

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Hidden City

Reported bugs

6 issues
  • Can not access the game to sign in after changing password
  • Game freezes and crashes frequently
  • Losing progress and achievements when switching devices
  • Glitches with events and mini-games
  • Disappearing items and rewards
Show 1 more
  • Compatibility issues with older devices

Requested features

9 requests
  • Give more free rubies, game is too expensive
  • Make the game less expensive
  • Give more rewards for completing goals
  • Make the game less frustrating and more enjoyable
  • Fix the glitches and technical issues
Show 4 more
  • Provide better instructions and tutorials
  • Offer an ad-free version for a one-time purchase
  • Make the mini-games less difficult and frustrating
  • Improve the social features and gifting system

Blind Opera

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Hidden City

One-time10
  • Special Offer$0.99
  • Cluster of Rubies$1.99
  • Tray of Rubies$4.99
Show 7 more
  • Super Deal$4.99
  • Platter of Rubies$9.99
  • Hyper Deal$9.99
  • Drawer of Rubies$19.99
  • Special Deal$19.99
  • Trunk of Rubies$49.99
  • Stockpile of Rubies$99.99
None

Blind Opera

No in-app purchases

Questions

Is Hidden City free?
Hidden City is free to download, with in-app purchases available.
Is Blind Opera free?
Blind Opera costs $3.99, with no in-app purchases.
Which has better reviews, Hidden City or Blind Opera?
Blind Opera is rated higher. Hidden City averages 4.3 out of 5 from 95K ratings, while Blind Opera averages 5.0 from 1 ratings.
Do Hidden City or Blind Opera have ads?
Hidden City shows ads; Blind Opera does not.
Which is updated more often, Hidden City or Blind Opera?
Hidden City ships an update every 9 days, and Blind Opera weekly. Most recently, Hidden City was updated on October 29, 2026 and Blind Opera on October 24, 2026.

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