Comparison

The Bunker vs The Sign

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

Head to head
About

The Bunker

Experience an award-winning interactive movie where you play as the last survivor in a nuclear bunker. Explore the environment, uncover repressed memories, and make life-or-death decisions in this psychological thriller.

Highlights
  • Live-action interactive movie
  • Psychological thriller gameplay
  • Explore a nuclear bunker
  • Uncover repressed memories
  • Make life-or-death decisions
  • Starring acclaimed actors
Features
Read full description

The award-winning, ground breaking, interactive movie comes to iOS! The Bunker is a tense psychological thriller starring Adam Brown (The Hobbit) and Sarah Greene (Penny Dreadful) and tells the story of John, the last remaining survivor of a nuclear bunker. John’s daily routine is the one thing that keeps him sane. But when an alarm goes off, his mind starts to self-destruct. You will need to explore the bunker by searching rooms and documents, venturing into long forgotten areas to help uncover repressed childhood memories. As the game progresses, John’s nightmare escalates and you will have to move fast and make quick decisions which could cost you your life! Everything you see is real, so are you ready to unlock the dark secrets of the bunker? Key features -Developed completely in live action – everything you see is real! -Filmed on location in a decommissioned Government nuclear bunker -A plot crafted by writers behind The Witcher and Broken Sword -Starring an incredible cast including: Adam Brown (The Hobbit), Sarah Greene (Penny Dreadful) and Grahame Fox (Game of Thrones) -Nominated for 4 Develop Industry Excellence Awards 2017 finalists for Best Performance, Best Writing, --Best micro Studio and Best New Studio -Horror Game of the Year 2016 at SHD Awards -Nominated for 3 TIGA awards: Most Original Game, Best Audio, Game of the Year -The Bunker will be showcasing a 30 minute short film version at Cannes Film Festival 2017. Connect with All 4 Games - Website: www.all4games.co.uk Twitter: https://twitter.com/All_4_Games Facebook: https://www.facebook.com/all4gamesofficial/ In order to deliver a personalised, responsive service and to improve the game, we remember and store information about how you use it. The information is completely anonymous and will never include any personal details. It is used only by Channel 4 or the trusted partners we work with. If you wish, you can switch off our analytics software within the “Options” screen of the game. The game contains promotions for Channel 4’s other products and services as well as some promotions of third party products and services. By downloading this application, you agree to our terms of use (http://www.channel4.com/programmes/all-4-games/articles/all/game-terms-and-conditions), privacy policy and cookies policy.

About

The Sign

Experience a chilling interactive horror story where a mysterious video leads to a 7-day countdown to death. Uncover clues, solve puzzles, and make critical decisions that shape the narrative and relationships to save your loved ones from a terrifying curse.

Highlights
  • Interactive horror story
  • Branching narrative choices
  • Clue gathering and puzzle solving
  • Character relationship building
  • Multimedia elements (videos, chats, calls)
  • Episodic content updates
Features
Read full description

Imagine there’s a video full of nightmarish and shocking pictures. As soon as you’ve seen it, your phone rings and a voice whispers "You have 7 days left …” Does that RING a bell? We bring the triumph of the creepy video cassette from the 90s to the present! When evil enters your smartphone, your life will turn into a horror trip! THE INTERACTIVE HORROR STORY OF “The Sign” Your classmate and good friend Gabriela has been acting strangely for a week and has been keeping to herself more and more. Just when you were about to contact her parents, she gets in touch and shares her mysterious story: Exactly 7 days ago, she saw a creepy video and then received a call saying that she was going to die TODAY ... While you and the other students from your course don't believe the story, the video suddenly starts on your mobile phone - and the real horror begins! You let evil into your life and the lives of your loved ones. Soon the question arises: is there really a curse on the video? Follow the clues hidden in pictures, chat messages, documents and in the video. Solve the dark secret and save the lives of your family and friends. What secret does the mysterious video hide? Who is the mysterious ghost woman? And who is not who he claims to be? Now it's up to you! YOU DECIDE ON CHAT MESSAGES, YOU INFLUENCE THE STORY Your decisions affect the course and end of the interactive horror thriller story. YOU alone decide how the story and your relationship with the different characters develop. It's up to you to collect clues, solve puzzles and ultimately stop evil! But be careful, because you can't trust everyone ... CHARACTERS AND RELATIONSHIPS. In “The Sign”, you can decide for yourself how you want to interact with the people in your life. By selecting your gender and sharing your name, you can enjoy a customized gaming experience. The messages you choose will affect the relationships with all the characters and the development of the story. THE INTERACTIVE GAME OF “THE SIGN” “The Sign” is like a thrilling ride in the ghost train, full of mysterious clues, puzzles and creepy effects. It’s up to you to fight for the life of your friends and family! You will receive and send chat messages that directly affect the course of this interactive horror game. The scary story is accompanied by pictures, voice messages, video calls, mini-games, videos and newspaper reports created especially for the game. “The Sign” is released in episodes, so while you’re playing we’re already working on the next part of the story. Therefore, we're especially looking forward to your feedback and suggestions, which you can send to the following e-mail: support@the-sign.de. This episode and all upcoming ones of the Horror Chat Thriller are completely free to play! Optional in-app purchases can speed up the course of the story and the game. Commissioner for the Protection of Youth Kristine Peters Kattensteert 4 22119 Hamburg Phone: 0174/81 81 81 7 Mail: jugendschutz@reality-games.com Web: www.jugendschutz-beauftragte.de Our data protection policy: https://www.reality-games.com/en/datenschutz.php Our terms and conditions (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

The Bunker4 screens
The Sign4 screens

Verdict

The call

The clearest difference is price: The Sign at Free against The Bunker's $4.99. The Sign also leads on rating (4.6 vs 4.2) and review sentiment (84% vs 60%). The Bunker's advantage is in-app purchases (none vs 10) and ads (none vs shown). 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

CostPrice · In-app purchases · Ads · Monetization

The Sign is free to download; The Bunker costs $4.99 up front. The Sign sells 10 in-app purchases, starting at $6.99 per month. The Bunker asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

The Sign holds the better App Store score, 4.6 against 4.2. That said, the two scores are not equally well evidenced: The Sign has 1.5K ratings behind it against 26, so its average is the more settled of the two. Written reviews point the same way: 60% of The Bunker's written reviews are positive against 84% of The Sign's.

UpkeepUpdate frequency

The Bunker ships an update every 8 days, The Sign every 6 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard9 real differences · 1 level
The Bunker versus The Sign: the parameters behind the verdict, then further details
ParameterThe BunkerThe Sign
Price$4.99Free — better
Rating4.2 (26 ratings)4.6 (1.5K ratings) — better
Positive reviews60.3% of reviews83.6% of reviews — better
Number of ratings261.5K — better
Update frequencyEvery 8 days — betterEvery 6 weeks
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.1 — better12.2
Further details — not scored
Size2.5 GB122 MB
Age rating17+17+
DeveloperWales Interactive Ltd.SponsorAds GmbH & Co.KG

Customer experience

The Bunker

All ratings26 ratings
Positive76.9%
Neutral3.8%
Negative19.2%
Written reviews58 reviews
Positive60.3%
Neutral15.5%
Negative24.1%

The Sign

All ratings1,508 ratings
Positive90.6%
Neutral5.0%
Negative4.4%
Written reviews434 reviews
Positive83.6%
Neutral6.5%
Negative9.9%

Bugs and requests

The Bunker

Not enough reviews yet to summarise bugs or requests.

The Sign

Reported bugs

2 issues
  • Inability to progress due to glitched mini-games
  • Saved data not transferring between devices

Requested features

4 requests
  • More diverse character customization options
  • Ability to replay past conversations
  • Subtitles/captions for accessibility
  • Reduced reliance on in-app purchases

In-app purchases

None

The Bunker

No in-app purchases

10 purchases

The Sign

Subscriptions2
  • Premium-Subscription$6.991 Month
  • Flatrate-Subscription$12.991 Month
One-time8
  • 40 BicS$1.99
  • 120 BicS$3.99
  • 300 BicS$8.99
Show 5 more
  • Heart Flatrate$8.99
  • Special$8.99
  • Premium$12.99
  • 800 BicS$16.99
  • Flatrate$32.99

Questions

Is The Bunker free?
The Bunker costs $4.99, with no in-app purchases.
Is The Sign free?
The Sign is free to download, with in-app purchases available.
Which has better reviews, The Bunker or The Sign?
The Sign is rated higher. The Bunker averages 4.2 out of 5 from 26 ratings, while The Sign averages 4.6 from 1.5K ratings.
Do The Bunker or The Sign have ads?
The Sign shows ads; The Bunker does not.
Which is updated more often, The Bunker or The Sign?
The Bunker ships an update every 8 days, and The Sign every 6 weeks. Most recently, The Bunker was updated on November 2, 2026 and The Sign on November 3, 2026.

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