Alternative solutions for in-house iPhone enterprise app distribution_问答_开发者

A client has asked us to develop a proprietary in-house app for managing their back-end systems. However, we are a small development company and I'm certain that their company does not have >500 employees.

Are there any alternative, yet similar, solutions to distributing this app to their company without going throu开发者_如何学JAVAgh the iPhone enterprise program?

(just to clarify: obviously, we would like to go through the official enterprise program but seeing how the company doesn't have >500 employees, this isn't possible).

UPDATE (27/09): It appears Apple have removed the 500 employee limit for the enterprise distribution See here. So this will probably be our route now (which is helpful because the app is approaching completion). I'll update this as we go through the process if anyone would like me to, so that others may get an idea of what the actual process is like.

You can submit the app as a completely free app on the AppStore but require that the user log in and authenticate to use it. That way anyone can download it but you control who can actually use it. Apple does all the distribution for you for and you don't have to worry about Ad-Hoc deployments or IT departments.

You then build a really simple configuration management system on a web host (or platform like Google AppEngine) that manages the authentication of apps.

When a user launches the free app they are asked for a username/password/whatever. That information is sent to the web-based configuration management system and confirmed. If the app receives an acceptable confirmation from the configuration management system it unlocks itself for use by that user.

The app can either re-authenticate every time it launches (useful if you want lots of control) or it can store a key file locally indicating that it has been authenticated. If it sees the local key file when the app launches it considers itself authenticated and never checks again.

Whether you use one user account per person or one for the whole company is up to you.

This style of distribution is very useful if you want to have control of who can use the app but want the ease of deployment that the AppStore provides.

Apple has accepted many apps onto the AppStore that use this method of authenticating against a remote server (Skype is a perfect example).

If you keep track of device UDID on the configuration server you can also pre-load it to allow a certain set of devices to work.

Further, nothing I have described is iPhone specific so you can use the same configuration management system and concepts on other platforms like Android (or even desktops) if you ever port the app or build other apps needing this in the future.

Also, since the action of authenticating devices is not processor or data intensive you will likely never incur a cost if you build this on Google AppEngine as you will never go over the free quotas and you will gain the stability and scalability of Google's backend architecture.

As this particular deployment is for managing an in-house back-end system deploying it through the AppStore can seem insecure because there is proprietary information embedded in the app, in particular the information that allows it to connect to and authenticate against the back-end systems.

The solution to that is to not include this information within the app and simply have that information be part of the response that the app receives from the configuration management server. Basically the app contains the logic necessary to perform its function but without the connection information it has no ability to manage any back-end system.

If you make the app authenticate every time it launches you can change the connection information on the configuration server and the app will update to the new information without any new deployment being necessary. The user just needs to restart the app. This gives your client the flexibility to change their internal network configuration without invalidating your application code. You could also make this information manually configurable within the application but then you incur an IT cost when setting up the application on each device and if you already are going to set up a configuration management system you might as well use it.

To further secure the above solution you may want to have the configuration management system be in-house and behind the company's firewall so that regardless of who gets a hold of the app they cannot connect to the config system unless they are within the company's network.

I was researching this yesterday and today, and it appears that Apple has just (within the past week) removed the >500 employee requirement for enterprise development. However, I believe you will need to develop/deploy for a particular client using a development toolkit registered by the client.

So if you do work for client A and client B, both client A and B will need to sign up with Apple as business developers, at which point you can develop apps for them (as a contractor) and use their tools to build and deploy within their enterprises. I would think it would be a good idea for your company to also be registered as a business developer.

Apple does still require you to have a Dun & Bradstreet DUNS number to sign up as a Business Developer.

About the only real choices you have are...

Up to 100 devices as ad-hoc distribution.
Enterprize distribution (requires > 500 employees)
Everyone has to march their device down to some IT-central and get built as a "developer" device. (yikes!)
Jail-broken.

Jail-broken may sound scary, but it's actually pretty advanced, now-a-days, and can be managed quite easily. Still, it voids your warrantee (unless you're willing to restore-to-factory and be not-honest about it ;)

Still, technically, it's an available option and can be made to work, if you're willing to plan it out.

Let us know what you decide, and the pros & cons of that method.

Another obvious although not neccesarily pleasant is to submit your app to the app store as an app but can only be accessed with a client password. Assuming you can get past the aapp store process this might work for you.

Olie said:

About the only real choices you have are... Up to 100 devices as ad-hoc distribution. Enterprize distribution (requires > 500 employees) Everyone has to march their device down to some IT-central and get built as a "developer" device. (yikes!) Jail-broken.

But to be clear (correct me if I'm wrong):

if you use the "Ad-hoc" distribution method, your costumers will see the app vanish after exactly 3 months.
only up to 100 devices can be used for testing (i.e. used in "developer mode") and moreover, the app will vanish after 3 months.

So, Apple doesn't give us any choice, are you really big (>500 employes)?? ok so you can do what you want etc otherwise... "byebye"

Moreover, forget about what "Bryce" said before, an app like the one he described would be rejected with the "limeted audience" motivation.

iOS is not for enterprise app....if you don't want to rely on some clever hackers (i.e. jailbreak)

Ad-hoc distribution is limited to 100 devices per app, that's true, but you can add the project n times to the apple developer center, so you can deploy it to n * 100 devices

How does apple ensure that your enterprise has greater than 500 people? I'd give it a go through the enterprise program anyway...

I would not jailbreak, I would not do ad-hoc because it is limited to 100, and I wouldn't make everyone put their phones in developer mode.

For future maintainability, enterprise mode is the way to go, so see if you can navigate your way through the process without mentioning that you might not be quite 500 users.

Also, I saw your comment about developing using MonoTouch. I would talk to Apple about this before you do anything else, because given their recent policy changes I am pretty sure this will get your app denied from the App Store and the Enterprise program.

Edit: I checked the Mono web page. It seems like Apple may still be letting mono apps in, and the Mono creators insist that it is kosher, but you might be running the risk of having your future app pulled from phones at any time.

A better edit: Straight from the mono website: Enterprise MonoTouch

It is important to point out that the new iPhone Developer Agreement terms are for AppStore deployment and not the Enterprise program that allows deployment of in-house application to users in the enterprise (using the Enterprise Deployment program).

So you might be good there as long as you can get into the enterprise program.

You can completely bypass the App-Store or Enterprise Developer Program approval process, if you develop your app as pure HTML5 solution. This technology is called webapps. And they can be pretty advanced in functionality. You automatically have cross platform readiness and very easy deployment options (as webclip this can be distributed via .mobileconfig configuration files) See http://www.apple.com/webapps/whatarewebapps.html

There is another solution: an own app store:

http://rhomobile.com/products/rhogallery/

unfortunately only in combination with RhoHub.

Or: http://www.appcentral.com/

More info: http://www.apple.com/iphone/business/integration/mdm/ http://www.cio.com/article/638175/Emerging_Tech_Alternatives_to_Apple_App_Store_For_Enterprises?page=2&taxonomyId=3002

In theory the proposed solution of publishing a free app meant for one company is not valid, since published apps in the app store should not be intended for a "limited audience" (whatever that means), according to:

http://appreview.tumblr.com/post/952395621/cannot-be-intended-for-a-limited-audience

Has anyone tried this with success? Any other ideas?