Proper API has been really helpful in choosing right financial strategies for me and my wife. Special thanks to Lukas for taking the time to explain everything in detail and addressing all our concern... Voir plus
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Lisez les avis des autres
I have been using Proper API services for the past few months with my consultant, Andre, and so far I am very satisfied with the experience. I really enjoyed my consultations: they were always c... Voir plus
L'entreprise a répondu
I had my kick-off Meeting today with Denis Zelenkovskyi and it was the most honest session I have ever had with these kind of service-providers. he was completely transparent about how much does it ov... Voir plus
L'entreprise a répondu
It has been a great experience receiving consultation from Lukas and Pierre. Lukas has helped us with a wide range of topics, including financing, pension plans, and legal and private insurance... Voir plus
L'entreprise a répondu
À propos de l'entreprise
Écrit par l'entreprise
As an expat navigating the complexities of the German system, you need strategies that go beyond the conventional. At Proper API, we empower you to maximise your financial potential by taking advantage of the available tax, real estate, and investment opportunities. We focus on intelligent financial structures that ensure both growth and security. With our guidance, you'll learn how to accelerate your income, make informed investment decisions and automate your wealth creation processes for long-term success.
Coordonnées de contact
Mary-Anderson-Str. 6, 53332, Bornheim, Allemagne
- 0228 84 250 931
- mail@proper-api.de
- proper-api.de
Proper API has been really helpful in…
Proper API has been really helpful in choosing right financial strategies for me and my wife. Special thanks to Lukas for taking the time to explain everything in detail and addressing all our concerns. I highly recommend their services.
16 mars 2026
Avis spontané
Great service, super transparent, can only recommend
I have been using Proper API services for the past few months with my consultant, Andre, and so far I am very satisfied with the experience.
I really enjoyed my consultations: they were always clear, transparent, and without any pressure.
Originally, I wanted to better understand how to invest in real estate and how to use it for tax advantages. Andre did great explaining all the details and helping me build a clear strategy for this. He also advised me on a private pension plan and compared it with the more traditional investments I was using at that time
I am happy with the service and knowledge I've received and would recommend them to others
3 mars 2026
Avis spontané
Réponse de Proper API
Hello Kateryna,
Thank you so much for your kind words and recommendation.
We’re very happy to hear that your experience with Andre has been so positive.
It means a lot to us that we could help you better understand the different topics, and support you in building a strategy that fits your goals.
We truly appreciate your trust and are glad to be part of your journey.
Very Satisfied
I have been working with the Proper API team for few months now and have been very satisfied with all the support and suggestions given by them.
24 avril 2026
Avis spontané
Réponse de Proper API
Hi Ayan,
Thank you very much for your kind feedback.
We’re very happy to hear that you have been satisfied with the support and suggestions from our team. We truly appreciate your trust and look forward to continuing to support you on your journey.
Great consultation experience
It has been a great experience receiving consultation from Lukas and Pierre.
Lukas has helped us with a wide range of topics, including financing, pension plans, and legal and private insurance options and inquiries. He has been very thorough and has provided us with detailed information throughout the process.
We have been working with Pierre on property investment. He has been very patient and thorough every step of the way, from explaining the basics to helping us find good apartment offers and choose the right one, and then guiding us through all the steps afterward, from securing a loan to the notary appointment.
We are very grateful for all their help and very happy with their assistance.
15 avril 2026
Avis spontané
Réponse de Proper API
Hello Fahime,
Thank you so much for your kind words and for taking the time to share your experience.
We’re very happy to hear that Lukas and Pierre were able to support you so thoroughly across such important topics, from financing, pension planning, and insurance to property investment and the full purchase process.
Your trust means a lot to us, and we truly appreciate your feedback. We’re glad to have been part of your journey.
Highly recommended!
We contacted ProperAPI when we felt a bit lost in our financial journey in Germany. The support we received was excellent. We received in depth analysis and consultation from different points of views and our specific requirements, goals were always given the highest priority!
Highly recommended to get excellent inputs and help!
15 avril 2026
Avis spontané
Réponse de Proper API
Hello Abhi,
Thank you so much for your kind words and recommendation.
We’re very happy to hear that we could support you during an uncertain phase of your financial journey in Germany and provide guidance tailored to your goals and priorities.
We truly appreciate your trust and look forward to supporting you further on your journey.
Positive with room for improvement
Overall, my experience working with the consultant was positive, especially in terms of responsiveness and support throughout the purchasing process. Communication was generally clear, and they were available to assist when needed.
However, there were some challenges regarding the initially projected rental income. The expectations presented at the beginning did not fully align with the actual achievable rent, which required additional clarification and negotiation later in the process. While this created some uncertainty, I appreciate that in the end a solution was found, and a subsidy from the seller was arranged to bridge the gap.
That said, reaching this outcome required considerable back-and-forth and was at times a tiresome process. A more realistic initial assessment and clearer communication around rental expectations would have made the experience smoother.
In summary, the consultant was helpful and committed, but there is room for improvement in setting accurate expectations upfront.
24 décembre 2025
Avis spontané
Réponse de Proper API
Hello Fatih,
Thank you for your honest feedback and for taking the time to share your experience. We really appreciate your kind words about our support and availability throughout the purchasing process.
We also understand your point regarding the initial rental expectations. We generally aim to calculate conservatively and assess what rent may realistically be achievable. However, especially for new-build properties during a first-time rental, final rental results can vary depending on market demand and the specific tenant situation at the time.
From now on, we will be even more cautious about discussing rental expectations up front.
We are glad that, in the end, we were able to find a solution together in your case. Thank you for your trust and your open feedback.
Happy with the experience
Happy with the experience. Spoke with André who has been very communicative and educated me a lot on what to expect with the process. I’m already feeling much more financially stable and capable.
28 février 2026
Avis spontané
Réponse de Proper API
Hi Ore,
Thank you for your great feedback — we really appreciate it!
We’re glad to hear that you had a positive experience with André and that you felt well guided throughout the process. Understanding what to expect is key, and it’s great to see you already feeling more confident and financially secure.
We’ll make sure André sees your kind words.
If you ever need support going forward, we’re always here for you!
A trustworthy partner for long-term financial decisions
I’ve been working with Proper API across insurance, investments, and real estate, and on the whole I’ve had a positive experience.
The insurance and investment consultations were professional, attentive, and well-suited to my needs. The real estate process was, as expected, the most demanding — stretching over about a year and a half — but the team supported me through the learning curve, and the purchase itself was well-coordinated.
One area where I feel there is room to grow is the post-notary phase. In practice, the formal signing is not the final step — there are still several important actions that need to be taken before the purchase is truly complete. As a first-time buyer, I wasn’t aware of this, and despite asking about next steps on a few occasions, I didn’t receive a clear picture in time. With a simple checklist or a brief overview of what comes after signing, I would have been able to take ownership of those steps myself and avoid some of the complications that arose. It’s a small addition that could make a meaningful difference for clients going through this process for the first time.
When support was needed most, it did come through — and I genuinely appreciate that.
One tip for future clients: always read through every document yourself, from start to finish. It pays off.
11 mars 2026
Avis spontané
Réponse de Proper API
Hello Anton,
Thank you very much for your thoughtful and balanced review.
We truly appreciate your trust in Proper API across such important long-term financial decisions, from insurance and investments to real estate. It means a lot to hear that you felt well supported throughout the process and that our consultations were professional, attentive, and tailored to your needs.
We also really value your honest feedback regarding the post-notary phase. You are absolutely right: the signing itself is not the final step, and especially for first-time buyers, the period afterward can still involve a number of important actions and responsibilities.
Transparency is very important to us, which is why we always share all relevant documents throughout the process. At the same time, we know that for first-time buyers, having the documents does not always automatically create full clarity around what comes next.
This is exactly why we have now created a dedicated checklist for our clients, including a clear timeline, FAQs, and an overview of the next steps after the notary appointment, so there is much more clarity throughout the process.
Thank you as well for highlighting this point so constructively. Feedback like yours helps us improve the client experience in meaningful ways.
We’re glad we could support you on your journey and appreciate the trust you placed in us. Wishing you all the best with your property and your long-term financial plans.
Professional and Competent.
The consultant was very competent and didn’t push for anything, he was just showing the way and letting you take all decisions .
I felt very well supported all the way .
23 janvier 2026
Avis spontané
Réponse de Proper API
Hi Stefan,
We’re glad to hear that you felt well supported and guided throughout the process. Our approach is exactly that: providing clarity and direction while ensuring that every decision stays fully in your hands.
It’s great to know this came across in your experience.
honest and transparent
I had my kick-off Meeting today with Denis Zelenkovskyi and it was the most honest session I have ever had with these kind of service-providers. he was completely transparent about how much does it overall make sense for me to use their services and did not try to over-sell it in any sense. will definetly get back to them in case my circumastances change.
23 mars 2026
Avis spontané
Réponse de Proper API
Hi Mehrave,
Thank you for your honest feedback — we really appreciate it.
We’re especially glad to hear that you experienced the session as transparent and genuinely helpful. Our goal is always to provide clear guidance and only recommend what truly makes sense for each individual situation.
We’ll make sure Denis sees your kind words.
And of course, if your circumstances change in the future, we’ll be happy to support you anytime.
Outstanding professional team
Dariusch and his team are professional, friendly, knowledgeable, and well prepared. I always felt that they didn’t just want to provide a service and offer expert advice, but also to educate me on the topics at hand so that I could make informed decisions. I couldn’t recommend them more highly!
17 mars 2026
Avis spontané
Réponse de Proper API
Hi Giorgia,
Thank you so much for your kind words — we truly appreciate it!
It’s great to hear that you felt well supported not only with expert advice, but also with the education behind each step. That’s exactly our goal: helping you make confident, informed decisions.
We’ll make sure Dariusch and the team see your feedback — it means a lot.
Wishing you continued success on your journey, and we’re always here if you need anything in the future!
In 2-3 months they helped me to obtain…
In 2-3 months they helped me to obtain my first property. Super helpful and friendly staff and very efficient. Special shout out to Grigori!
Highly recommend to anyone who wants to improve their financial situation!
18 février 2026
Avis spontané
Réponse de Proper API
Hi Vahe,
Thank you so much for your kind words — we truly appreciate it! 🙏
We’re very happy we could support you in acquiring your first property within such a short time frame. That’s a big milestone, and it’s great to hear that you felt well guided throughout the process.
A special thank you as well for highlighting Grigori — we’ll make sure he sees this!
Wishing you long-term success with your investment, and we’re always here if you need anything in the future.
Best regards,
Proper API Team
Professional and trustworthy
I have utilised insurance and Real Estate services from ProperAPI. I have interacted with Denis and Pierre and I can say that they have very good expertise in their respective fields. They understand our needs and provide good quality support as per that. Professional and trustworthy. Highly recommended!
8 janvier 2026
Avis spontané
Réponse de Proper API
Hi Vikas,
Thank you very much for your great feedback!
We're delighted to hear that your experience with our insurance and real estate services has been so positive. Denis and Pierre will be very happy to hear your kind words. Understanding our clients' needs and providing tailored, high-quality support is exactly what we strive for.
Thank you for your trust and recommendation!
Best regards,
Proper API Team
Awesome Experience
Lukas and Pierre are very helpful and supportive. They are always ready to answer any question that we have however small it is. The advice and suggestions on investment strategies are top notch.
26 janvier 2026
Avis spontané
Réponse de Proper API
Hi Kapil,
Thank you very much for your kind words!
We're really happy to hear that we're able to support you so well and answer all your questions along the way. Providing clear guidance and well-thought-out investment strategies is exactly what we aim for.
Thanks again for your trust!
Best regards,
Proper API Team
I’ve been using Proper API for…
I’ve been using Proper API for investing, and my experience has been smooth so far. The platform made it easy for me to invest in both insurance products and ETFs. The interface is user-friendly, and the information provided helped me understand my options before investing. Transactions were straightforward, and the overall process felt transparent and reliable.
10 décembre 2025
Avis spontané
Réponse de Proper API
Hi Angel,
Thanks a lot for your feedback!
Great to hear the process felt transparent and straightforward - that’s precisely our goal.
Best regards,
Proper API Team
Helpful and trustworthy
They help with all kinds of questions, and I have found them to be trustworthy.
I like how well any of my queries are answered and laid out in a comprehensive manner. I have received help for matters that did not directly bring the company itself gain. They are also legally bound to act in their customers’ best interest, which brings further trust points.
Sometimes responses take a while, but I take talking to a human over any kind of AI any day, as they can cater to my specific needs and take data protection seriously.
26 novembre 2025
Avis spontané
Réponse de Proper API
Hi Ajda, thank you for your kind words!
We’re glad you felt well supported throughout the process.
If anything comes up, just reach out anytime.
Best regards,
Proper API Team
Great service
Great service, very helpful and friendly team. Highly recommended.
21 novembre 2025
Avis spontané
Réponse de Proper API
Hi Burag, thank you!
We truly appreciate your trust.
Best regards,
Proper API Team
Recommend
Valentin & Lukas, I had the chance to talk to them. Both of them are really helpful and provide the proper advice according to your needs and your situation.
The consultation is full free.
Their service is pretty good and always available via watsapp.
Always would recommend them!
19 novembre 2024
Avis spontané
Réponse de Proper API
Hi Riaz,
Thank you very much for your recommendation!
We're glad to hear that Valentin and Lukas were able to support you with helpful, needs-based advice and that you felt well taken care of throughout the process. Being easily reachable and providing clear guidance is very important to us.
Thanks again for your trust and kind words.
Best regards,
Proper API Team
Always available within reach for…
Always available within reach for answering any questions even after providing services, which is very much appreciated and personal connection and concerns are addressed. It never felt like I am one of many clients but one and only
30 octobre 2025
Avis spontané
Réponse de Proper API
Hi Supratim,
Thank you very much for your kind feedback!
We truly appreciate hearing that you felt personally supported and well taken care of even after our services were provided. Building long-term relationships and being available whenever questions arise is very important to us.
Thank you for your trust.
Best regards,
Proper API Team
Very clear in communication
Very clear in communication! very knowledgeable and experienced in investment and finances. Highly recommend working with Proper API.
20 octobre 2025
Avis spontané
Réponse de Proper API
Hi Prasanth,
Thank you very much for your great feedback!
We’re happy to hear that you found our communication clear and our expertise in investments and finances valuable. Providing transparent, knowledgeable guidance is exactly what we aim for.
Thank you for your recommendation.
Best regards,
Proper API Team
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