desmodiAN, thanks for replying. I am a marketer and have a client who runs a bitcoin investment business, and she wants me to help her get a wallet created, she wants her own. I contacted a reputable freelancer site who matched me with a software engineer. He says he can do it, and it will take him 4 weeks, 50 hours per week. Wanted $9000 but went down to $7000. That is the background to why I asked.
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If that sounds high to you, just remember that this wallet may be used to store orders of magnitude more money than that, and all it takes is one single flaw and all that money is stolen. That developer had better be worth his salt, because his work has to protect your client's customers' assets.
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Taras - do you think there is a too much of a risk to use free, open source to create our wallet? Can it get hacked easier if we use that than if we let the software engineer program it from the ground up?

desmodiAN, thanks for replying. I am a marketer and have a client who runs a bitcoin investment business, and she wants me to help her get a wallet created, she wants her own. I contacted a reputable freelancer site who matched me with a software engineer. He says he can do it, and it will take him 4 weeks, 50 hours per week. Wanted $9000 but went down to $7000. That is the background to why I asked.

This is a general question. What is the average usual reasonable cost to have a bitcoin wallet created for a client? The wallet platform, not the website included.

Thanks.