ZeroTier One vs Redmine Client

ZeroTier One for iOS allows you to join ZeroTier virtual networks as VPN connections on your iPhone, iPad, or iPod Touch. ZeroTier creates secure peer-to-peer virtual Ethernet networks that work anywhere. Skip the VPN hassles. Connect hybrid clouds, remote teams, and IoT devices directly with no hardware required. ZeroTier One provides virtual network endpoint functionality for iOS devices. Getting started takes seconds: Just tap '+', enter your network ID and name, and then click ‘join network.’ (Once a network is added you can also join it via the iOS VPN control panel. It will appear there as an available VPN connection.) You can only join one ZeroTier network at once due to an iOS limitation of one VPN connection per network extension app. The app allows you to add multiple networks but if you flip one to 'on' any others currently joined will disconnect. We value your feedback! If you encounter any issues or have suggestions for future improvements, please contact our support team through our website. Thanks for using ZeroTier! Clients for other platforms are available on https://www.zerotier.com/ and source code to ZeroTier's core engine can be found here: https://github.com/zerotier/ZeroTierOne

One of the Best Redmine Client for iPhone.

This app is entirely Free to use. Give us your feedback so we can make this platform better. Features: 
- Go Mobile
You can easily access your projects on Redmine - Create/Update/Delete
 Tasks. - View and Upload Attachments. 
You can view and upload attachments against tickets - Wikki. - Sorting, Filtering and Categorizing Tasks. - Sharing Tasks and Projects. - Clock In/Cloclk-out Team members can clock in and clock out, you will need ERP Mine Plugin to utilize this feature 
- Super search:
 You can search through key words or issue id and get hold of tickets easily. 


Basic Questions:
**Can't connect to Redmine Server.
- You must enable the REST API.
To enable the API-style authentication, you have to check Enable REST API in Administration -> Settings -> Authentication.

**What versions of Redmine are supported?
- We recommend v2.1 and above. With older versions the API is not supported, so it might not function properly. We recommend using the latest version.

** The data for User, Version, Category, etc. is out of date.
- When the Redmine server-side is updated, the data needs to be synchronized. Please synchronize the data with Setting -> Master Data Setting.

** Issues are not displayed
- The problem of issues not being displayed due to failure of the Redmine Backlogs plugin is being reported. Issues are displayed normally when the Backlogs plugin is changed to the newest version, v1.0.3, or lower.

*Redmine Backlogs is a Redmine plugin for agile teams. Drag and drop interface to manage the product and sprint backlogs. Visual management of stories and their tasks. Burn down charts to keep tabs on the project's progress.

**Connecting via a Self-Signed Certificate.
-If a Self-Signed Certificate is installed into an iPhone as a "reliable certificate," connection will be enabled.
After a *Self-Signed Certificate is set through an connectable web server using an iPhone so that it is ready to be downloaded, it will be installed by accessing the URL given for the Self-Signed Certificate with the iPhone.
*Allowed formats include; der, pkcs12, pfx

You can check the following operations a self-certificate.
iPhone : [Settings] > [General] > [Profiles] > [Configuration Profiles[Company]
IFI Sol [About Redmine]
Redmine is a flexible project management web application. Written using the Ruby on Rails framework, it is cross-platform and cross-database.
Redmine is open source and released under the terms of the GNU General Public License v2 (GPL).

* Features
Some of the main features of Redmine are:
●Multiple projects support
●Flexible role based access control
●Flexible issue tracking system
●Gantt chart and calendar
●News, documents & files management
●Feeds & email notifications
●Per project wiki
●Per project forums
●Time tracking
●Custom fields for issues, time-entries, projects and users
●SCM integration (SVN, CVS, Git, GitHub, Mercurial, Bazaar and Darcs)
●Issue creation via email
●Multiple LDAP authentication support
●User self-registration support
●Multilanguage support
●Multiple databases support