# Cold Case Tracer: Redstring — Mobile phone spy detective > Interactive found-phone detective story game with simulated evidence. (iPhone/iPad app by Oguzhan Yildirim.) - Source: https://appshunter.io/ios/app/cold-case-tracer-redstring/id6788852743 (this page in markdown: same URL + `.md`) - Developer: [Oguzhan Yildirim](https://appshunter.io/developer/1685663174) - Category: Entertainment, Lifestyle - Price: Free with in-app purchases - Rating: 4.70/5 from 15 App Store ratings · 1 written reviews indexed - Age rating: 9+ - Requires: iOS 18.0 · 117 MB - Languages: American English - Released: 2026-07-13 - Data updated: 2026-08-31 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/cold-case-tracer-redstring/id6788852743/reviews.md ## What is Cold Case Tracer? Someone is lying. The phone knows. Redstring is a found-phone detective story. A client messages you in a live chat, hands you the victim's phone, and asks you to find the truth — from the first message to the final accusation. Every text, photo, voice memo, bank line and map ping is evidence. Read between the lines. Crack the passcodes. Pin the red string. Name the killer. YOUR FIRST CASE IS FREE Play "The Kessler File" from the opening message to the verdict — a full investigation, with no paywall in the middle of the story. A LIVE CHAT WITH THE CLIENT The person who knew the victim talks to you the whole way — asking the questions, reacting to your answers, and finally asking you to name a suspect. Type what you found; the story reacts. SNOOP A FULLY SIMULATED PHONE - Chats and DMs, including the deleted ones - A gallery with Hidden and Recently Deleted albums - Locked notes, voice memos, calendar, bank statements, browser tabs and location history - Every app can hide a clue. Nothing is random. PIN IT ON THE BOARD Your evidence board pins each discovery and links it with red string. Leave for days, come back, and the case is exactly where you left it — progress is saved per case. STUCK? ASK FOR A HINT Up to three escalating hints per question nudge you toward the evidence without spoiling the answer. Smart answer-matching understands what you mean. NAME THE TRUTH The final question is an accusation. Get it right and the case closes; get it wrong and you can reconsider the suspects. 10 CASES AT LAUNCH — MORE ON THE WAY Murder, disappearance, blackmail and betrayal across Europe — Paris, Berlin, Lisbon, Vienna, Amsterdam, Prague, Copenhagen and Barcelona. Fully playable in 8 languages. REDSTRING PASS Case 1 is free forever. The Redstring Pass unlocks every case: - Weekly: $4.99 per week - Annual: $29.99 per year - Lifetime: $39.99 one-time — not a subscription Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period; manage or cancel anytime in Settings - Apple Account - Subscriptions. Terms of Use (EULA): https://redstring-98526.web.app/terms.html Privacy Policy: https://redstring-98526.web.app/privacy.html Redstring is a work of interactive fiction. All characters, phones, messages and events are fictional; any resemblance to real people or events is coincidental. The app never accesses your real messages, photos or data. ## Key features - Simulated phone with chats, photos, and data - Interactive live chat with client - Evidence board with red string connections - Escalating hint system - Multiple European case locations - Unlockable cases via subscription ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Redstring Pass — Weekly | $4.99 | per 7 days | | Redstring Pass — Annual | $29.99 | per year | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | All Cases — Lifetime | $39.99 | one-time | ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/cold-case-tracer-redstring/id6788852743/reviews.md ### 5/5 — Fun Game *2026-08-07* It's a very engaging game. The questions aren't as easy as in other games; you really have to work hard to find the answers. I liked the stories. The game is truly immersive. You rummage through the phone, collecting evidence and clues to answer questions. It's a very engaging game. I've finished it all and am eagerly awaiting the new cases. **Developer response:** Thank you so much for the amazing feedback! 🫶🏻 We’re thrilled that you enjoyed the stories, challenging questions, and the investigation experience. More cases are on the way, so stay tuned, detective! 🕵️‍♀️🔍 ## Frequently asked questions about Cold Case Tracer ### What is Cold Case Tracer: Redstring? Cold Case Tracer: Redstring is an interactive detective story where you investigate a simulated phone to uncover the truth behind a crime. You'll examine messages, photos, and other data to piece together clues and identify the culprit. ### Is Cold Case Tracer: Redstring free to play? Yes, your first case, "The Kessler File," is completely free and playable without any paywalls. Additional cases can be unlocked with the Redstring Pass. ### What are the Redstring Pass subscription options? The Redstring Pass offers weekly ($4.99), annual ($29.99), and a lifetime ($39.99) option to unlock all cases. Subscriptions renew automatically unless cancelled 24 hours before the current period ends. ### Does Cold Case Tracer: Redstring have ads? No, Cold Case Tracer: Redstring does not contain advertisements. The game is free to start and offers additional content through optional purchases. ### How many cases are available in Cold Case Tracer: Redstring? At launch, there are 10 cases available, covering various crimes across multiple European cities. More cases are planned for future updates. ### Can I play Cold Case Tracer: Redstring offline? The game's description indicates that progress is saved per case, suggesting it can be played without a constant internet connection. However, specific offline playability is not explicitly detailed. ### What languages does Cold Case Tracer: Redstring support? Cold Case Tracer: Redstring is fully playable in 8 languages, making it accessible to a global audience interested in interactive detective stories. ### How does the hint system in Cold Case Tracer: Redstring work? If you get stuck, Cold Case Tracer: Redstring offers up to three escalating hints per question. These hints guide you toward the evidence without revealing the direct answer, and the game's smart answer-matching understands your input. ## Version history (last 5 releases) ### 2.3 — 2026-08-24 Every investigation just got deeper. • 10 questions per case — twice the detective work • New apps on every phone: dating profiles, an AI assistant, travel bookings and reminders, each hiding fresh evidence • Real interactive maps in every case • Clearer answers and a reveal option on every question • Fully localized in 8 languages Unlock the phone. Follow the evidence. Name the killer. ### 2.2 — 2026-07-29 • Browse every case from the case page and jump straight in • Immersive message sounds — with a mute button in the chat • Haptic feedback on key moments • See your current Redstring Pass plan in Settings • Fixes and performance improvements ### 2.1 — 2026-07-24 • Immersive message sounds — feel every incoming clue • Haptic feedback on key moments • Fixes and performance improvements ### 2.0 — 2026-07-21 Case 2.0 is open: • Start Case 1 instantly — no interruptions before your first investigation • New: try Redstring Pass free for 3 days • Prices now shown in your local currency • Fixed: purchases unlock instantly • Performance and stability improvements ### 1.0 — 2026-07-13 No release notes. ## Apps similar to Cold Case Tracer | App | Rating | Price | Category | | --- | --- | --- | --- | | [Fresh Trace - Mobile Detective](https://appshunter.io/ios/app/fresh-trace-mobile-detective/id6788156836) | 2.5 (2) | Free | Entertainment | | [CluePhone: Detective Game](https://appshunter.io/ios/app/cluephone-detective-game/id6787150787) | 3.3 (6) | Free | Entertainment | | [Spy Story - Detective phone](https://appshunter.io/ios/app/spy-story-detective-phone/id6759349666) | 4.4 (412) | Free | Entertainment | | [ColdTrace: Cold Case Mystery](https://appshunter.io/ios/app/coldtrace-cold-case-mystery/id6762513021) | 4.8 (3,817) | Free | Entertainment | | [PetMateAI - Pet Recognition As](https://appshunter.io/ios/app/petmateai-pet-recognition-as/id6785727650) | — | Free | Entertainment | | [Leaked · Mobile Detective](https://appshunter.io/ios/app/leaked-mobile-detective/id6785890577) | 4.2 (2,915) | Free | Entertainment | ## More apps by Oguzhan Yildirim - [Solo travel friends・Budd](https://appshunter.io/ios/app/solo-travel-friendsbudd/id6596764825) - [AI Tattoo Design・ TattooLab](https://appshunter.io/ios/app/ai-tattoo-design-tattoolab/id6740440406) - [AI Logo Maker・Brandify](https://appshunter.io/ios/app/ai-logo-makerbrandify/id6741534510) - [Cartoon Yourself・Anime Filter](https://appshunter.io/ios/app/cartoon-yourselfanime-filter/id6744113937) - [Action Figure Maker - Doll Toy](https://appshunter.io/ios/app/action-figure-maker-doll-toy/id6744558685) - [Disposable Camera · TheDay](https://appshunter.io/ios/app/disposable-camera-theday/id6779247854) All apps by Oguzhan Yildirim: https://appshunter.io/developer/1685663174 ## Related topics [cold case](https://appshunter.io/ios/topics/cold-case) · [cold bed on route](https://appshunter.io/ios/topics/cold-bed-on-route) · [tracers](https://appshunter.io/ios/topics/tracers) · [revenge on bad guy](https://appshunter.io/ios/topics/revenge-on-bad-guy) · [culprit thrashing aparts](https://appshunter.io/ios/topics/culprit-thrashing-aparts) · [crime solving](https://appshunter.io/ios/topics/crime-solving) · [ertugrul saga](https://appshunter.io/ios/topics/ertugrul-saga) · [suspects](https://appshunter.io/ios/topics/suspects) · [massimo mexborough new app](https://appshunter.io/ios/topics/massimo-mexborough-new-app) · [enquete](https://appshunter.io/ios/topics/enquete) · [cold trace](https://appshunter.io/ios/topics/cold-trace) · [spy story](https://appshunter.io/ios/topics/spy-story) · [grrregames](https://appshunter.io/ios/topics/grrregames) · [nirlab forensics sarl](https://appshunter.io/ios/topics/nirlab-forensics-sarl) · [detective games texting](https://appshunter.io/ios/topics/detective-games-texting) · [dtalkie](https://appshunter.io/ios/topics/dtalkie) · [unsolved case](https://appshunter.io/ios/topics/unsolved-case) · [juegos de detectives sin internet](https://appshunter.io/ios/topics/juegos-de-detectives-sin-internet) · [stalkie pro](https://appshunter.io/ios/topics/stalkie-pro) · [yorkshire terrier puzzle](https://appshunter.io/ios/topics/yorkshire-terrier-puzzle) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-31.*