# Cold Case Trace: Redstring — Detective Murder Mystery Games

> Interactive found-phone detective story game with simulated evidence. (iPhone/iPad app by Oguzhan Yildirim.)

- Source: https://appshunter.io/ios/app/cold-case-trace-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: 4.40/5 from 62 App Store ratings · 10 written reviews indexed
- Age rating: 9+
- Requires: iOS 18.0 · 135 MB
- Languages: American English
- Released: 2026-07-13
- Data updated: 2026-10-25
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/cold-case-trace-redstring/id6788852743/reviews.md

## What is Cold Case Trace?

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 | $6.99 | per 7 days |
| Redstring Pass — Annual | $39.99 | per year |
| Annual Pass — Special Offer | $19.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| All Cases — Lifetime | $49.99 | one-time |
| Reveal the Answer | $1.99 | one-time |
| 5 Reveals | $4.99 | one-time |
| 10 Reveals | $7.99 | one-time |


## Is Cold Case Trace safe?

Cold Case Trace: Redstring appears mostly safe based on user ratings. The AppsHunter Safety Score for Cold Case Trace is 84 out of 100. This assessment is based on 62 user ratings, with an App Store average of 4.4 out of 5. Of 62 App Store ratings, 83.9% point to a safe experience, 4.8% suggest some concerns, and 11.3% point to a risky experience.

## Is Cold Case Trace legit?

Cold Case Trace: Redstring appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Cold Case Trace is 70 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (10 of 10)

All indexed reviews: https://appshunter.io/ios/app/cold-case-trace-redstring/id6788852743/reviews.md

### 4/5 — Un peu prévisible la première enquête…

*2026-10-21*

Trop évident

### 5/5 — Top

*2026-10-12*

Es ist ein Mega schönes Spiel schade ist nur das man nicht sehen kann wann man das nächste Level kostenlos weiter spielen darf oder ob das überhaupt geht. Wenn es keine kostenlose Option gibt wirklich schade

### 2/5 — Needs work

*2026-10-12*

I only did the first free case so my review is limited. But first impressions led me to turn down paying for the full version of the app. On the positive side, I liked how you could pin clues to the board. The phone apps for browsing were laid out well. But I found the questions to be worded in a confusing manner and once you entered the correct answer, the next part of the story flashed on and off the screen so quickly, you had no time to read it fully before the next question popped up. So the whole time I was playing, I barely had a grasp of the storyline or what was going on. Even so, like most games in this genre, the suspect became obvious very quickly and it was just a matter of trying to answer the questions correctly, which wasn't always the easiest thing to do. For instance, if asked for a time that a certain event happened, "2:00 pm" will be rejected but "2:00" will be accepted. Oftentimes, it's just trial and error trying to figure out the wording that will be accepted to move on. For these reasons, I've decided it's not worth paying the $20 for more cases so I'll be deleting the app.

### 3/5 — Good game but…

*2026-09-27*

The game is fun and entertaining, but after you complete the first one, you have to pay for pro to do the rest of the investigations. If it wasn’t for that, I would 100% recommend it to anyone who likes investigating.

**Developer response:** Thank you for the kind words, detective! 🫶🏻 We're really glad you enjoyed the first investigation. The first case is free from start to finish, and the Pass is what lets us keep building new ones. Every case is hand-made, with an original story, real evidence, custom photos and translations into 8 languages, and each one is tested continuously before it goes live. A new case lands every week, and the next file is already on the desk. Hope to see you back on the board! 🕵️‍♀️🔍

### 3/5 — Bien

*2026-09-26*

C’était super bien juste un peu
 difficile et quand t’as fini les questions faut payer

**Developer response:** Merci beaucoup pour ton retour, détective ! 🫶🏻 Ravis que l'enquête t'ait plu. Oui, c'est un peu difficile, et c'est voulu : on a conçu Redstring pour qu'il ne se résolve pas en quelques clics comme d'autres jeux du genre. Le premier dossier est entièrement gratuit, et le Pass nous permet de continuer à créer de nouvelles affaires : histoire originale, vraies preuves, photos conçues pour chaque dossier et traduction en 8 langues, le tout testé en continu. Une nouvelle enquête arrive chaque semaine, alors à très vite ! 🕵️‍♀️🔍

### 4/5 — Bien

*2026-09-21*

J’aime beaucoup pas bcp de pub et pas payant sa change

**Developer response:** Merci beaucoup pour ce super retour ! 🫶🏻 Ravis que l'expérience te plaise. Chaque dossier est construit à la main, avec une histoire originale, de vraies preuves et des photos créées spécialement pour lui, et une nouvelle enquête arrive chaque semaine. Garde ta loupe à portée de main, détective, le prochain dossier est déjà en préparation ! 🕵️‍♀️🔍

### 1/5 — What is this

*2026-09-09*

Nach 6 Tagen darf man kostenfrei erst wieder spielen

**Developer response:** Danke für dein Feedback! 🫶🏻 Der erste Fall ist komplett kostenlos spielbar. Danach erscheint jede Woche ein neuer Fall — der Countdown zeigt genau, wann es weitergeht, und dieser Rhythmus gilt für alle, auch für Pass-Inhaber. Jeder Fall wird von Hand gebaut: eigene Geschichte, echte Hinweise, eigens erstellte Fotos und Übersetzung in 8 Sprachen — dafür brauchen wir diese Zeit. Wir hoffen, du bist beim nächsten Fall wieder dabei. 🔍

### 1/5 — .

*2026-09-08*

Debe ser gratis todos los casos

**Developer response:** Gracias por tu comentario. 🫶🏻 El primer caso es totalmente gratuito, de principio a fin. Detrás de cada caso hay una historia original, sus pruebas, sus imágenes y traducción a 8 idiomas, y por eso publicamos un caso nuevo cada semana en lugar de soltarlos todos de golpe. El Pass es lo que nos permite seguir creándolos. Agradecemos mucho que lo hayas probado. 🔍

### 2/5 — Not the best

*2026-09-07*

I read the reviews and I thought it was going to be a really good app. I was doing the first case and really enjoyed it. They should really state somewhere that it costs money.

**Developer response:** Thanks for playing, and we're sorry the pricing came as a surprise. 🫶🏻 The first case is free from start to finish, and in our App Store page, we clearly have information about that this app includes in-app purchases. Glad you enjoyed the first investigation, and a new case lands every week. 🔍

### 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 Trace

### 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)

### 3.2 — 2026-10-18

Redstring 3.2 — now on iPad.
• Play every case on iPad, full screen, every screen.
• The phone got a makeover: a wallpaper for every case, bigger app icons and a redesigned question deck with the client's photo.
• The Cases page brings you back to the case you were playing.
• Fixes: read receipts in chats, "Go to clue" now zooms Maps to the pin, German map data restored.

### 3.1.1 — 2026-09-20

In this version:
- App performance improvements implemented.
- Found bugs fixed.

### 3.1 — 2026-09-17

In dieser Version: / Verbesserungen der App-Leistung umgesetzt. / Gefundene Fehler behoben.

### 3.0 — 2026-09-08

Sixteen cases. A new one every week.

• Six new investigations: Istanbul, Stockholm, Kraków, Dublin, Athens and Hamburg — a smuggled crate, a reopened cold case, a forged survey, a warehouse that counts wrong, a poisoned cove, a fire that paid too well
• Weekly drops: new cases arrive on a schedule, with a countdown on their cover and a notification when they open — included with the Pass
• New apps on every phone: dating profiles, an AI assistant, travel bookings and reminders, each hiding fresh evidence
• Every case now holds 10 questions, asked in the client's own voice
• Real interactive maps in every case
• Reveal option and clearly listed accepted answers on every question
• A redesigned Settings screen with your Pass at a glance
• Fully localized in 8 languages

Unlock the phone. Follow the evidence. Name the killer.

### 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.

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All apps by Oguzhan Yildirim: https://appshunter.io/developer/1685663174

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*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 2026-10-25.*