Registered with the German Patent and Trade Mark Office
treuetest-online.eu® is registered as a protected trademark under registration number 302016215935.
Online fidelity test · discreet since 1998
Test your partner’s fidelity.
Test your partner’s fidelity.
Choose a decoy. Gain clarity.
With treuetest-online.eu® you compare verified decoy/detective profiles, choose contact method and region yourself and coordinate your fidelity test securely. You can explore the profile search for free; plans start at €39 and do not renew automatically.
Discreet & protectedProtected member area
Clear & transparentPackages without auto-renewal
Unlimited messagingInternal messaging without a message limit
Adults only
Clear safety rules
You stay in control
Discreet. Secure. Trustworthy.Your request remains anonymous. Only you can view the results.
Visible trust signals
How to recognise the professionalism of treuetest-online.eu® at a glance.
Clear information instead of vague promises: a protected trademark, genuine media presence and many years of experience create a credible and professional framework for discreet fidelity testing.
Known from press & media
Featured in personal public-service radio interviews: treuetest-online.eu® and two of our decoys were interviewed in depth about our work and real-world experience with fidelity testing, including on SWR 2 / SWR Kultur and SWR 3.
Experience since 1998
treuetest-online.eu® has existed since 1998 as an agency/detective service and has been fully available online since 2014.
- Long-standing experience in a discreet field
- Fully available online
- Clear package structure without auto-renewal
NEW · exclusive to treuetest-online.eu®
More than search: guidance, AI matching & clarity resources.
Three new tools complement the classic fidelity test—kept intentionally compact and available exactly where they can help.
Assess first. Then decide.
A few simple questions, assessed transparently. AI shows whether a conversation, a fidelity test or another next step appears suitable.
Start Clarity Compass →92%
Smart Match – AI SearchSuitable & active profiles first.
Smart Match combines your preferences with public profile data and recent activity. AI prioritises—you keep the final choice.
Discover Smart Match →Guides + book bonus.
Paying customers receive three exclusive Clarity Guides. Clarity 30 and 90 also include the exclusive book by Dr. Gonzalez – psychologist & couples therapist – with insights, tips and practical ideas about love, relationships and a fulfilling partnership.
View library → Herbstbeginn · neue Routinen
Clarity for your relationship
If you have specific doubts, a discreet and structured fidelity test can help you assess the situation more clearly.
View options →Explore for free · decide later
Try for free →See it first. Then decide.
With free access you can try the complete search across all approved decoy/detective profiles, including filters, images and short information. You only choose a paid duration plan when you want full profile details and contact.
Decide with insight, not guesswork.
Online or in-person fidelity test
Choose the right fidelity test yourself — by contact method, region and profile.
Whether chat, WhatsApp, phone, social media or an in-person assignment: available options are shown directly in each profile. This lets you choose a tester who fits your specific situation.
Chat, WhatsApp & social media
For a quick location-independent start, select profiles offering the remote contact methods you need.
A contact method that fits the situation
Phone, SMS and other direct methods can be agreed individually when offered by the selected profile.
Search by region and postal code
For in-person assignments, filter by country, region, postal code and other criteria, then check price and availability in the profile.
Packages & pricing
Choose the package that fits you.
One-time purchase, clear duration and included in every package: unlimited internal communication with decoys during your active access.
Clarity 7
€39.00
Ideal for a focused fidelity test with a short duration and direct access to all available profiles.
- All available verified profiles
- Advanced profile search & filters
- Unlimited internal messaging
- Clarity Compass AI included
- Smart Match – AI Search
Also included
3 exclusive Clarity GuidesYour Clarity Library is permanently unlocked with the plan.
Clarity 30
€79.00
Our most popular package: enough time to select profiles, make contact and coordinate calmly and systematically.
- All available verified profiles
- Advanced profile search & filters
- Unlimited internal messaging
- Clarity Compass AI included
- Smart Match – AI Search
Also included
3 exclusive Clarity GuidesYour Clarity Library is permanently unlocked with the plan.
Exclusive relationship bookby Dr. Gonzalez · Psychologist & couples therapist
Premium bonusClarity 90
€149.00
For situations where you want maximum flexibility and longer access to search and communication.
- All available verified profiles
- Advanced profile search & filters
- Unlimited internal messaging
- Clarity Compass AI included
- Smart Match – AI Search
Also included
3 exclusive Clarity GuidesYour Clarity Library is permanently unlocked with the plan.
Exclusive relationship bookby Dr. Gonzalez · Psychologist & couples therapist
Premium bonus
Discover decoy/detective profiles live
A genuine first impression — before you register.
See a continuously changing random selection of approved and verified profiles. Tap or click a profile to open a larger, reduced preview.
Profiles are loading …
How it works
1Choose packageSelect duration and payment method.
2Find a profileFilter by region, price and contact type.
3Start requestCommunicate type and scope securely in-app.
4Gain clarityView the decoy’s result – gain certainty.
Four clear steps toward more certainty.
Trust that matters
Security you can rely on.
ProtectedMember area
Privacy-orientedOnly necessary data
Clear rulesLegal framework
Unlimited messagingWith active package
Interactive process preview
Four discreet steps to greater clarity.
See the process in action: choose a package, search and compare profiles, make protected contact and gain clarity. Transparent, straightforward and with no automatic renewal.
Step 1 · Choose a package
Choose the access period that fits your situation.
One-time purchase. Full cost control.
7days€39.00
Popular30days€79.00
90days€149.00
Unlimited internal messaging included
Animated demo – profiles and messages shown are fictional examples.
Secure payment & protected use
Encrypted transmission. Familiar payment methods.
Your connection is transmitted via SSL encryption. Depending on enabled options, payment methods include PayPal, bank transfer, credit card and cash payment.
PayPalSecure online payment · automatic activation
Bank transferClassic & simple
Credit cardAutomatic activation after payment
Cash paymentCompletely anonymous
SSL-encrypted data transfer · no unnecessary tracking cookies
Frequently asked questions
The most important answers at a glance.
Short, clear and easy to understand: here you will find the most important information about packages, communication, discretion and safety.
How does a fidelity test with a decoy work?
You choose a suitable profile, coordinate contact method, process and scope securely, and receive the decoy’s result for the specific tested situation after the agreed fidelity test.
How much does a fidelity test cost?
Platform access plans start at €39 for 7 days. Services from a selected decoy for remote or in-person assignments are shown separately in the profile and agreed directly.
Can I choose the decoy myself?
Yes. Even with free access you can browse profiles with photos and short information and filter by age, gender, region, postal code, contact method, price and other criteria.
Can a fidelity test be done via WhatsApp, chat or phone?
Yes, if the selected profile offers the desired contact method. You can filter by available channels and then coordinate the details directly with the profile.
Is the service discreet?
Yes. Messages, profile contacts and order information are kept in the protected member area. Please also follow the safety rules and local laws in your country.
How long does my package last?
Exactly for the selected duration. There is no automatic renewal.
What does unlimited messaging mean?
During your active package period you can use the internal messaging system without a fixed message limit.