Classifying as bad does not really describe my experience with Signal Iduna.
I've a customer of their dental insurance for several years and nothing works well.
The app is confusing and incredibly hard to understand for non-german speakers, the refunds take more than other insurances from everyone I know, one time I asked for a budget approval that took so long the budget itself was expired when signal Iduna answered.
One may ask, so why don't you change the insurance?
They do not allow me to do it. One time I asked to cancel and they told me it was too late, this year I asked in January to cancel in July (when it was renewal) and they refused alleging it was before the notification period, and now I'm traped for another year.
I think I can say this is by far the worst company I worked in Germany.
Dear Signal Iduna support, if you're seeing this, I promise I'll delete the review if you allow me to cancel the insurance. I just want to get rid of you and your terrible service.

Edit: I contacted customer support right after this message but as always is like talking to a wall.

I updated my review after SI reached me with explanation. Still not completely happy about the service as in their new app is hard to follow which Rechnung has been processed and again the explanation is missing. Also I have got couple of time increase on the monthly payment after subscribing even though I have already told to their agent all the health conditions. At the end it has been sold to me that I can save money when changing to private health insurance but mow I see I am paying more at the end of the day and I am still young.
I will check definitely more affordable insurance companies who can give 100 percentage coverage of the treatment

Worst insurance provider i've ever had to work with, from their 1980's app, to the multiple documents asked for the simplest checkup, and having to call them after you've added the docs they asked for (its like they don't know you've sent the docs from their app 80's app). After weeks of waiting and sending all the documents i've received from the doctor they tell me its not the right one and that's that.
Making appointments in their app and not being confirmed for over 5 days, and when its confirmed and you go there it happened that the doctor was not working on that specific day, and they told me my appointment was in fact next week, but the s*** signal app did not reflect that. Better keep your money an chose a different insurance.

They ask for all kinds of irrelevant documents for the settlement of the services. What is the relevance of the "complete report with the entire medical history from the medical specialist" when I was prescribed tests by the family doctor, and signal iduna claims to pay for the tests, but instead of paying for them, they ask me for some irrelevant fables that they also know I have no way of providing.
Today is the 25th day since I submitted the refund request. They thought for 18 days what reason to invent to not settle anything. For a week I have sent them medical letters, the file from the family doctor and now I am waiting to see what reason they invent for not settling the medical tests PRESCRIBED BY THE DOCTOR. My previous insurance would have already settled for 3 weeks without inventing a reason and asking for IRRELEVANT documents in order to comply with the clauses of the "insurance".
In fact, Signal Iduna are just some swindlers who scam corporate people who can't give up their "insurance" because the employer pays for their scam.

Top Service. Danke!

I would leave Amazon Development Center in Romania just because they have a partnership with Signal Iduna. The call center operators doesn't know the process, they are telling you different things from an operator to another. You wait for a doctor appointment 2 months and in the last day, Signal Iduna is calling you to request you to provide them a document and because you will not have it handy, they will not authorize you the doctor appointment you have next day. So you'll have to wait again 2 months until you'll find the doctor available. Another scenario: I told them I have an appointment in Medicover Victory Square in Bucharest, and they authorized it for Medicover Pechea Street. I call them back to highlight the misunderstanding noticed in the message, they told me Medicover Victory Square is not covered by my insurance, they said that I should go there and pay with my money and ask for a reimbursement after that, I asked "How do I know I will receive my money back if that location is not covered?". They said: "We don't know this. You'll be informed after you submit the docs for reimbursement". Does this make sense for anyone? Then why do they have a call center if they don't have answers? Another scenario: I had to go 2 other times to my family doctor to request her 2 different docs Signal Iduna asked me for. Worst medical insurance sistem ever. Don't work with them. Avoid Amazon in Romania just because they work with Signal Iduna. Aaa, and by the way, I am paying them 150 RON per month, for all of the above.

This is PURE GARBAGE. And this is not even an exaggeration. They make you pay the first investigations even if you are already paying the policy... they call it... also policy of "activation". I paid and they said they will "refund". They refunded 20% and accidentally gave me like... 4 more dollars.... Oh well, they are now asking from me for the 4 dollars with a lot of effort and proof! :)) With proof and all. Also they cancel your investigation payments and make you pay them calling them "prevention" when you are clearly sick. If you care about yourself STAY AWAY FROM THIS GARBAGE. TRASH. CANCER COMPANY.

Actually o stars would be applicable. They are still taking money out of my 90 year old mothers bank account for an insurance policy that had been cancelled months ago. It takes forever to process refunds which a normal accountant could do in minutes. What an extremely poor performance from a company of that magnitude. Avoid at all cost!

too expensive for what they offer. I had the feeling that they were fooling me. There are much better alternatives in the market for at least half of the price

Signal Iduna is a multi billion dollar company for a reason people. They dont really cover you for the most important things like luggage as they cap this to a measly $400 plus you have to pay them a premium to claim it. I do not trust them to cover me for anything really just to line there pockets while ripping off their customers.

Everything, months to respond, no contact. I then get a call from Iduna, a lovely lady who assured me everything would be sorted and I would see the paperwork on Monday (it was Thursday).... that was two weeks ago.

Every time there is an issue, it takes 3 to 6 weeks.

I broke my shoulder and 5 ribs and it was a mess, iduna was as helpful as a fart in a space suit. 6 months to finally pay the bills, in the meantime i had debt collectors who needed paying. I had to take out a loan to pay them to allow iduna time to process the paperwork - yes 6 months in some cases, they nearly bankrupt me.

The sad thing is, now I have written this post, they will reply "oh I am so sorry, I can help you now..." Just so others read it and see the service is good....,.IT IS NOT-ITS TERRIBE

I am forced to leave this review to get the paperwork i need from them for my 2020 tax return. I have been trying to get it for months. It's a joke.

If this is the "private health service" then I wish i was employed and could go to the standard health service - the service was far better, a lot less stress and if they said it was in the post, IT WAS IN THE POST.

Nightmare - i am now seeking new health care. I Cannot believe they are consistently bad at everything they do.

If I could give them 0 star I would.
This company is total rubbish. They harassing me to get more and more money. You can’t quit your contract like normal companies. Till now I payed them 4000€ to avoid the headache although I quit it. Their Sales person told me that I have quit my contract although it was still running. But the SCAM is that they still year after year ask me for money although I quit it. SIGNAL IDUNA is a scam. Run away if they try to approach you to join them!

Car insurance for my car repair. Every time the service is very good, the reply is very timely and will also tell you how to do. Everything is going smoothly. Perfect!

They are a bad joke. Called 3 times in the call center for a basic blood test, they stated they will contact back. One week passed still no answer....