Comparison

Lost Echo vs Unsolved

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

Head to head
About

Lost Echo

Embark on a sci-fi mystery adventure to find a missing girlfriend. Explore 3D environments, solve puzzles, and interact with characters to uncover the truth behind her disappearance. This story-driven experience captures the spirit of classic adventure games.

Highlights
  • Story-driven sci-fi mystery
  • Point-and-click adventure gameplay
  • Explore fully 3D environments
  • Solve puzzles
  • Interact with characters
  • Uncover the truth
Features
Read full description

"A richly defined, innovative experience [...] capturing the spirit of traditional adventure gaming with all the potential the platform has to offer." > 4.5/5 AdventureGamers.com In the near future Greg's girlfriend Chloe mysteriously disappears in front of him. He starts a desperate search for her. What happened? Why does no-one else remember her? Solve puzzles, explore fully 3d environments, interact with numerous characters, solve the mystery and find the truth. But will the truth be enough? Lost Echo is a story driven, visually ambitious, sci-fi mystery point and click adventure game.

About

Unsolved

Embark on thrilling hidden object adventures and solve compelling mysteries. Investigate crime scenes, uncover clues, and unravel captivating stories across diverse and enchanting locations. This collection offers a growing library of free puzzle games for aspiring detectives.

Highlights
  • Free hidden object puzzle adventure games
  • Detective investigations and criminal cases
  • Solve exceptional puzzles
  • Find tons of hidden objects
  • Diverse and captivating settings
  • Evergrowing collection of titles
Features
Read full description

Welcome to UNSOLVED - the ultimate FREE hidden object adventure experience viewed through detective eyes in the extraordinary world of mystery games, puzzling investigations, and tons of hidden clues waiting to be found. A NEW DAWN OF HIDDEN OBJECT MULTIVERSE Jump right into a new world of hidden object puzzle adventure games with this collection of carefully crafted, highly praised FREE hidden object marvels, ALL IN ONE PLACE. Play more mystery games without leaving the application and look forward to new titles in this evergrowing set. PLETHORA OF STORIES Embark on a thrilling adventure in a multitude of breathtaking lands and immerse yourself in compelling tales filled with fascinating characters, both friendly and hostile. Unravel chilling stories of unexplained vanishing, mystery murder or a dark family secret. Is it a vicious crime or a supernatural event? Whatever the case, you will be captivated from the beginning to the end. DETECTIVE WORK Become a true detective and run a thorough investigation. Lead the inquiry, document evidence, and solve an abundance of exceptional puzzles. Use your deductive skills to get inside the minds of your adversaries. Connect the dots and solve the mystery conundrum. Whether it is a criminal case, a secret society conspiracy or unsolved mysteries of the past, discover the truth and don’t let the persecutors escape. HIDDEN OBJECTS GALORE Explore a vast number of mesmerizing sights in search of clues and practical appliances to advance your investigations. Challenge your perceptivity by scouring through plenty of heavily detailed, beautifully illustrated scenes filled with heaps of hidden objects. Find them all on a crime scene, in a haunted hotel, an enchanted forest and dozens of other unique places. ENTHRALLING VENUES Visit diverse, captivating settings in this expanding set of mystery games. Your journey will take you from mystery manor to dark city alley, from hidden hotel to dim dungeon. Anticipate new astonishing areas in the upcoming UNSOLVED in-app releases. AT THE FLOW OF THE TIDE UNSOLVED presents the remarkable EVENTIDE trilogy, including an exclusive bonus chapter, as the starting point for this new Hidden Object Adventure Games Collection from the creators of genre-defining mystery classics: ENIGMATIS and GRIM LEGENDS series. Start your journey in the magnificent world of Eventide. Join Mary Gilbert in her travel to eastern Europe and delve into stirring Slavic folklore only to encounter an unearthly threat. Discover Mary’s heritage and help her overcome the dangers she was destined to face. BRING ALL THE GAMES WITH YOU Optimized for phones and tablets, filled with hidden objects, perfect for playing while traveling. KEY FEATURES Enjoy an evergrowing collection of skillfully crafted FREE hidden object puzzle adventure games Run detective investigations, solve criminal cases or discover ancient mysteries Challenge your mind in exceptional puzzles Find tons of hidden objects in complex scenes Escape into a world of unforgettable mystery stories Be amazed by beautiful hand-painted sceneries Get thirsty for more adventures to come! NOT CONVINCED YET? Have a look at some of the reviews of our existing hidden object adventure games: NOIR CHRONICLES: CITY OF CRIME “Love this game! Artifex Mundi is truly awesome! Thank you!” CRIME SECRETS: CRIMSON LILY “Love it Artifex Mundi delivers again!!!!” THE MYTH SEEKERS: THE LEGACY OF VULCAN “Outstanding as always! They make awesome games. Never disappoint.” GRIM LEGENDS: THE DARK CITY "Fantastic game, good storyline. Entertaining with beautiful graphics especially the CGI clips. Keep 'em coming guys."

Screenshots

Lost Echo4 screens
Unsolved4 screens

Verdict

The call

The clearest difference is price: Unsolved at Free against Lost Echo's $4.49. Unsolved also leads on ratings volume (55K vs 86) and chart position (#43 vs unranked). Lost Echo's advantage is in-app purchases (none vs 12) and ads (none vs shown). On rating, review sentiment, update cadence 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

CostPrice · In-app purchases · Ads · Monetization

Unsolved is free to download; Lost Echo costs $4.49 up front. Unsolved sells 11 one-off in-app purchases. Lost Echo asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for Lost Echo against 4.7 for Unsolved. That said, the two scores are not equally well evidenced: Unsolved has 55K ratings behind it against 86, so its average is the more settled of the two. Written reviews are what separate them: 76% of Lost Echo's written reviews are positive against 71% of Unsolved's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on September 23, 2026 and September 25, 2026 respectively.

Scorecard7 real differences · 4 level
Lost Echo versus Unsolved: the parameters behind the verdict, then further details
ParameterLost EchoUnsolved
Price$4.49Free — better
Rating4.6 (86 ratings)4.7 (55K ratings) — better
Positive reviews76.0% of reviews — better70.9% of reviews
Number of ratings8655K — better
Update frequencyFortnightlyFortnightly
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
Best chart rank—#43 — better
DevicesiPhone, iPad, iPod, Apple TV — betteriPhone, iPad, Mac
Requires iOS13.0 — better16.0
Further details — not scored
Size444 MB252 MB
Age rating12+12+
DeveloperKickBackArtifex Mundi S.A.

Customer experience

Lost Echo

All ratings86 ratings
Positive91.9%
Neutral2.3%
Negative5.8%
Written reviews575 reviews
Positive76.0%
Neutral8.2%
Negative15.8%

Unsolved

All ratings55,256 ratings
Positive92.6%
Neutral4.4%
Negative3.0%
Written reviews3,061 reviews
Positive70.9%
Neutral13.4%
Negative15.7%

User reviews

Lost Echo

From 86 App Store ratings

What we love

  • 🚀 Excellent story and plot
  • 🎨 Beautiful graphics and visuals
  • 🎶 Immersive soundtrack
  • 👍 Engaging and thought-provoking gameplay
  • 💡 Unique and innovative concept

Room to improve

  • 🐢 Slow pacing and excessive dialogue
  • 🤔 Confusing and unsatisfying ending
  • 👨‍💻 Awkward character animations and interactions
  • 🌐 Issues with translation and grammar

Unsolved

From 55K App Store ratings

What we love

  • 🚀 Captivating stories
  • 👍 Challenging puzzles
  • 🎨 Beautiful graphics

Room to improve

  • ⏱️ Energy depletes too quickly
  • 🕰️ Slow energy regeneration
  • 💰 Expensive in-app purchases

Bugs and requests

Lost Echo

Reported bugs

2 issues
  • Game progress getting deleted after updates
  • Inability to progress past certain points

Requested features

4 requests
  • More challenging puzzles
  • Multiple endings or branching storylines
  • Improved character development
  • Sequel or expansion to continue the story

Unsolved

Reported bugs

2 issues
  • Glitches causing progress loss
  • Inconsistent ad rewards

Requested features

3 requests
  • More ways to earn energy for free
  • Ability to purchase full game access
  • Energy usage transparency

In-app purchases

None

Lost Echo

No in-app purchases

11 purchases

Unsolved

One-time11
  • Premium Pack Micro$1.99
  • Special Offer Micro$1.99
  • Special Offer Mini$2.99
Show 8 more
  • Premium Pack Tiny$4.99
  • Special Offer Tiny$4.99
  • Premium Pass Tiny$4.99
  • Premium Pack Standard$9.99
  • Special Offer Standard$9.99
  • Special Offer Big$19.99
  • Premium Pack Big$19.99
  • Premium Pass Big$19.99

Questions

Is Lost Echo free?
Lost Echo costs $4.49, with no in-app purchases.
Is Unsolved free?
Unsolved is free to download, with in-app purchases available.
Which has better reviews, Lost Echo or Unsolved?
Unsolved is rated higher. Lost Echo averages 4.6 out of 5 from 86 ratings, while Unsolved averages 4.7 from 55K ratings.
Do Lost Echo or Unsolved have ads?
Unsolved shows ads; Lost Echo does not.
Which is updated more often, Lost Echo or Unsolved?
Lost Echo ships an update fortnightly, and Unsolved fortnightly. Most recently, Lost Echo was updated on September 23, 2026 and Unsolved on September 25, 2026.

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