ML revenue forecast.
Calibrated against 29524 apps in this category.
Confidence band
±15%
High — many comparable apps with verified data
At a glance
Earns 18.09× more than the category median (192/mo).
Ranks #539 of 29,524 in Puzzle (top 1.8% by revenue).
Launched May 06, 2026 · last updated Mar 23, 2017.
What the app looks like
Live screenshots from the Play Store, captured by our snapshot worker. Tap any image to enlarge.
Who Is The Killer? Episode I's revenue trajectory
Forecast revenue from snapshot history. Last 1 months.
Where Who Is The Killer? Episode I sits in Puzzle
Revenue distribution of 29524 comparable apps. Who Is The Killer? Episode I highlighted.
Who Is The Killer? Episode I vs comparable apps
Revenue trajectory side-by-side. Bold = Who Is The Killer? Episode I, ghosted = peers.
App spec
Version
3.4.4
Last update
Mar 23, 2017
Launched
May 06, 2026
Price
Free
Monetization
Free
What Who Is The Killer? Episode I actually does (from store listing)
Meet the first episode of a famous series of detective games «Who Is The Killer?» called «The Old Sins». You have found yourself being trapped in the castle with seven characters, and one of them is a murderer. Every day one of the charecters is killed, only you can stop the killer.
«We would personally recommend everyone to try this game, especially those who love brain teasers. You’ll love it!» — Gameographics.
— Breathtaking detective gameplay for those who like to think.
— Old myster…
Meet the first episode of a famous series of detective games «Who Is The Killer?» called «The Old Sins». You have found yourself being trapped in the castle with seven characters, and one of them is a murderer. Every day one of the charecters is killed, only you can stop the killer.
«We would personally recommend everyone to try this game, especially those who love brain teasers. You’ll love it!» — Gameographics.
— Breathtaking detective gameplay for those who like to think.
— Old mystery background story and atmospheric music.
— Original criminal mini-games and puzzles.
Speak with characters, investigate crime scenes, try to think as a criminal minds, guess who lies, listen your intuition to find clues and arrest the killer before it’s too late! Everyday someone dies and you need to figure out who is the killer using just your logic. It’s a murder mystery game where everybody has a secret of the past. Everybody could have reasons to do this. And you have only seven days to stop the murderer. All mystery case files are very important! Remember it’s not a casual adventure game. There is no happy end in this story, you can even lose the game (if everybody dies).
– The game is based on classical english detective rules in the tradition of Sherlock Holmes. The plot of the game is complicated. Everything is not so obvious at this time, you can find some parallel mystery stories, but only one will lead to the killer.
– Pictures from the scene can be studied with a magnifying glass but this is not a standard hidden object game or puzzle quest, here each piece of evidence is important for further investigation.
– Enjoy a thrilling adventure, explore mystery murder locations, decipher puzzles and gather clues! Do everything that is need to prevent new murders and find the killer!
Game page on Facebook: http://www.facebook.com/WhoIsTheKiller
WARNING! Some reviews may contain spoilers. Think twice before reading them!
More than 3,5 million of our players around the world are choosing «Who is the Killer» games as their favorite free detective games and play them again and again!
Want more mystery games? No problem, we have 3 more titels for you (alll Episodes support English, Russian and German languages)!
«Who is the Killer?» Episode II: https://goo.gl/BrtPEv
«Who is the Killer?» Episode III: https://goo.gl/96p5ci
«Who is the Killer?» Episode IV: https://goo.gl/mDHYej
P.S. PLEASE do not tell who is the killer in reviews! You can break other people fun with it! Thanks in advance!
Comparable Android apps
The five apps in Puzzle with the closest revenue to Who Is The Killer? Episode I. Click any to see its detail page.
Each forecast combines App Store rating, ratings count, monetisation model, pricing tier, IAP signals and ad-supported flag.
The base estimate is then multiplied by a per-category scaling factor learned from apps with founder-verified MRR.
Every number on this page comes from public APIs and bumetric's own snapshot history.
Full methodology covers input variables, accuracy bands per category and how we treat apps without comparable anchors.
See also the live data on Who Is The Killer? Episode I's tracker page for current rating, reviews and snapshot timeline.
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