Comparison

QJay Remote vs Cold Case Tracer

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

Head to head
About

QJay Remote

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QJay remote is the perfect companion to our QJay player. Control your music experience from the palm of your hand with a clean intuitive design from the palm of your hand.

About

Cold Case Tracer

Uncover the truth by examining a simulated phone's messages, photos, and data. Connect clues on an evidence board and accuse the killer in this interactive detective story. Your first case is free to play.

Highlights
  • 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
Features
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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.

Screenshots

QJay Remote4 screens
Cold Case Tracer4 screens

Verdict

The call

The clearest difference is in-app purchases: QJay Remote at none against Cold Case Tracer's 7. QJay Remote also leads on iOS requirement (13.1 vs 18.0). Cold Case Tracer's advantage is update cadence (every 8 days vs every 2 months). On price, ads 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

Both are free to download. Cold Case Tracer sells 7 in-app purchases, starting at $6.99 per 7 days. QJay Remote asks for nothing beyond the download.

UpkeepUpdate frequency

QJay Remote ships an update every 2 months, Cold Case Tracer every 8 days. The most recent releases landed on September 29, 2026 and October 5, 2026 respectively.

Scorecard3 real differences · 7 level
QJay Remote versus Cold Case Tracer: the parameters behind the verdict, then further details
ParameterQJay RemoteCold Case Tracer
PriceFreeFree
Rating—4.3 (46 ratings) — better
Positive reviews—28.6% of reviews
Number of ratings—46 — better
Update frequencyEvery 2 monthsEvery 8 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPod — betteriPhone
Requires iOS13.1 — better18.0
Further details — not scored
Size21 MB130 MB
Age rating4+9+
DeveloperFady FadlallahOguzhan Yildirim

In-app purchases

None

QJay Remote

No in-app purchases

7 purchases

Cold Case Tracer

Subscriptions3
  • Redstring Pass — Weekly$6.997 Days
  • Annual Pass — Special Offer$19.991 Year
  • Redstring Pass — Annual$39.991 Year
One-time4
  • Reveal the Answer$1.99
  • 5 Reveals$4.99
  • 10 Reveals$7.99
Show 1 more
  • All Cases — Lifetime$49.99

Questions

Is QJay Remote free?
QJay Remote is free to download, with no in-app purchases.
Is Cold Case Tracer free?
Cold Case Tracer is free to download, with in-app purchases available.
Do QJay Remote or Cold Case Tracer have ads?
Neither QJay Remote nor Cold Case Tracer shows ads.
Which is updated more often, QJay Remote or Cold Case Tracer?
QJay Remote ships an update every 2 months, and Cold Case Tracer every 8 days. Most recently, QJay Remote was updated on September 29, 2026 and Cold Case Tracer on October 5, 2026.

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