I'm intrigued to know what this app does.... I wouldn't give them it for free, that shows you don't think it's worth anything. I would decide if you want to support and maintain the app or just offer it as a done and dusted piece of software that they can purchase. It is a bit of a sticky one as they will expect you to go above and beyond as you work for them already, but you can give them a timeframe for fixes / changes before finally signing it off, you can decide if that timeframe is a year, 6 months, 3 months etc. If you decide you want to maintain the app, then you can charge them a lower fee and add a maintenance fee on top, but make sure that any timeframe is noted, i.e. once a issue is reported we / i will endeavour to address and fix the issue within 10 days. If you write these clauses into an EULA of sorts and make sure they understand it as nobody ever reads it, so you might have to reiterate it to them. Pricewise it's hard to judge as we don't really know what it does, what issue it solves and how much time it saves. You can work out how long it took to write, work out what you would charge as an hourly rate and use that as a baseline figure, if it is similar to another app, then see how much they charge. Is the app server based, i.e multiple users use the same instance or does it have to be installed on many computers? Some companies charge per user. I could go on, but you get the idea! :)

I'm intrigued to know what this app does.... I wouldn't give them it for free, that shows you don't think it's worth anything. I would decide if you want to support and maintain the app or just offer it as a done and dusted piece of software that they can purchase. It is a bit of a sticky one as they will expect you to go above and beyond as you work for them already, but you can give them a timeframe for fixes / changes before finally signing it off, you can decide if that timeframe is a year, 6 months, 3 months etc. If you decide you want to maintain the app, then you can charge them a lower fee and add a maintenance fee on top, but make sure that any timeframe is noted, i.e. once a issue is reported we / i will endeavour to address and fix the issue within 10 days. If you write these clauses into an EULA of sorts and make sure they understand it as nobody ever reads it, so you might have to reiterate it to them. Pricewise it's hard to judge as we don't really know what it does, what issue it solves and how much time it saves. You can work out how long it took to write, work out what you would charge as an hourly rate and use that as a baseline figure, if it is similar to another app, then see how much they charge. Is the app server based, i.e multiple users use the same instance or does it have to be installed on many computers? Some companies charge per user. I could go on, but you get the idea! :)