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Got a question? Check the FAQ below or send us an email — we usually reply within 24 hours.
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✉️ support@truedoubt.co.ukHow to Play
STEP 01
Read the Briefing
Each case starts with a briefing — suspects, the incident, and the basic facts.
STEP 02
Study the Evidence
Tap any evidence card to read it. Mark anything suspicious using your 10 Doubt Points.
STEP 03
Find the Contradiction
Tap Contradiction, then select two pieces of evidence that can't both be true.
STEP 04
Submit Your Theory
Name your culprit, tag the key evidence, and submit. Your score reveals how sharp you were.
Frequently Asked Questions
Yes. True Doubt is free to download. One full case per difficulty tier (Easy, Medium, Hard) is completely free — no account, no sign-in required. A subscription unlocks all 39 cases and future content.
Subscriptions are managed through Apple. To cancel, go to Settings → [Your Name] → Subscriptions on your iPhone, find True Doubt, and tap Cancel Subscription. You'll keep access until the end of the current billing period. We cannot process cancellations directly.
Tap any locked case to bring up the paywall, then tap Restore Purchases at the bottom. Make sure you're signed in to the same Apple ID used when you originally subscribed.
You start each case with 10 Doubt Points. Marking a piece of evidence as suspicious costs 1 point. If you mark the wrong evidence, you lose 5 points from your final score. Use them wisely — any points you don't spend give you a small bonus at the end.
All three tiers use the same 13 scenarios, but with completely different suspects, evidence, culprits, and contradictions. Easy has clearer contradictions and more obvious guilty parties. Medium adds more suspects and evidence. Hard introduces conspiracy outcomes and multiple culprits.
Scores are out of 100:
+40 — correct culprit
+25 — contradiction found
+25 — key evidence tagged (proportional)
−5 per false doubt (marking irrelevant evidence)
+up to 10 — unused doubt points saved
Verdicts: CRACKED (85+), SOLVED (65–84), PARTIAL (45–64), COLD CASE (below 45).
+40 — correct culprit
+25 — contradiction found
+25 — key evidence tagged (proportional)
−5 per false doubt (marking irrelevant evidence)
+up to 10 — unused doubt points saved
Verdicts: CRACKED (85+), SOLVED (65–84), PARTIAL (45–64), COLD CASE (below 45).
Yes. Any case can be replayed unlimited times. Your best score is saved. Free cases can be replayed without a subscription. Subscribed cases can be replayed for as long as your subscription is active.
App Lock lets you protect True Doubt with Face ID or Touch ID. It can be enabled in Settings (tap the gear icon on the home screen). When enabled, the app will ask for biometrics when you return from the background. This feature is entirely optional and off by default.
No. True Doubt collects no personal data. All progress is stored locally on your device. We have no servers and no analytics. See our full Privacy Policy for details.
Email us at support@truedoubt.co.uk with a description of the issue and your iOS version. We'll look into it as quickly as possible.