Monthly Archives: January 2016

Mobile App Development KPIs

When building mobile apps to market your business, there are certain metrics that you will need to look at in order to gauge whether your mobile app rollout has been a success or a failure. There are many factors that will determine if an app is a success once it has undergone development by a mobile app development company. One of the main metrics is the number of downloads of the mobile app. If it has been downloaded multiple times, it provides a measure of success but that does not provide the full measure of it. There are many other KPIs that you need to look at when it comes to measuring the success of an app. These include the following:

The App Usage

One of the best KPIs for apps is determining whether people are using it and it is serving the intended purpose. Whether the app is built to get more work done, kill time, or help people do certain tasks, it should provide value for the intended users. In order to determine if a particular app is providing value to its end users, you need to delve even deeper into the demographics of the app usage. For example, who is using the app? How frequently are they using the app? When are they using the app and what devices are they using to access the apps?

The Lifetime Value

Lifetime value of any mobile app is the value that app users get in comparison to a non-user. Are there any advantages that the mobile app is offering end users that will convince non-users to want to use the mobile app? If your mobile users are spending more time sampling your products and spending more money on your store relative to the non-users, then you can be sure that your mobile app strategy is working.

The Retention Rate

You don’t want your mobile app to be just a fleeting fad that will come and go away. You want your users to go beyond the hype and use your apps over the long term.  When looking for a mobile app development company, it is important to work with a company that strives for longevity. When building the mobile apps, it is important to put the retention rate of the app in mind. You need users who will be using the app for 30 days, 3 months or even 6 months in order to ensure that you are generating the desired value.

The Number of Active Users

Your mobile app might have had millions of app downloads but how many are actively using it? It is often said that it takes a special kind of mobile app to get people to use it with some regularity. Having a community of active users will also provide you with good metrics that you can use to measure trends, performance and areas where you need to make some improvements.

The Session Length

The session length is another important KPI. People might open an app but how long are they using the mobile app? The length of duration of use of the mobile app is the app’s session length. Longer app sessions generally imply a deeper engagement level between the user and the app. Every app must have a degree of stickiness.

The Revenue per User

It is good is your prospects are actively interacting with the apps and even using it consistently but how much are they spending on every interaction? Ensure that you measure the average revenue per user in order to see the app productivity.

With the right mobile app development company, you can have an app that meets many of the KPIs and delivers an incredible performance.

Selecting the Appropriate Washers, Nuts and Bolts for Use

A number of items are needed when undertaking maintenance and repair works. Restoring an old car for instance requires having fasteners of varied types and sizes. Such action can help someone in attaining faster completion of the project at hand while affording the restored vehicle a refined appearance. Tornirap provides fastening solutions to cater for the numerous requirements clients have within the automotive and other industries.




The term washer refers to a thin plate with hole, normally utilized for distributing the load of a screw, nut or other type of threaded fastener. This gadget can also be used as a spring (wave washer, Belleville washer), spacer, wear pad, locking device, preload indicating gadget and for reducing vibration (rubber washer). The outer diameter of this industrial accessory usually measures about twice its inner diameter’s width. Metal or plastic is employed in their construction. Bolted joints of high quality require the hardened steel versions for preventing loss of pre-load as a result of brinelling, upon application of torque. Utilizing a washer also helps to prevent galvanic corrosion, especially through insulation of steel screws from aluminum surfaces.


A nut is a form of fastener with threaded hole mostly utilized opposite a mating bolt for fastening together a stack of parts. The friction caused by their threads, some slight bolt-stretch and compression of the parts keep the two partners together. A host of locking mechanisms can be applied where rotation or vibration may lead to nut-loosening. This includes adhesives, nylon inserts, safety pins or threads of slightly-oval shape. Hexagonal is the most common shape for reasons similar to those of the bolt head. Six sides offer appreciable angle-granularity when using tools, but having more corners would mean being more vulnerable to round-offs. This type of fastener comes in other customized shapes as well. Tornirap stocks a variety of nuts suitable for a host of industrial tasks.


The term bolt refers to a kind of threaded fastener which features an external male thread. This industrial ware, oftentimes confused for a screw, is utilized for assembling two unthread components using a nut. Screws are by contrast applied in conjunction with components, with at least one having its own internal thread that can even be formed by installing the screw itself. A lot of threaded fasteners may be described by either term screw or bolt, depending upon their application, with the latter being often used for making a bolted joint. This combines axial clamping force by the nut with dowel-action of the bolt, which pins the joint against shear forces acting sideways.

National and international firms can find the various types of fasteners mentioned above available with Tornirap. This company serves various industrial backgrounds which include the oil industry, construction and civil engineering, metalworking, Machine, Hydro, furniture, automotive as well as food industries among many others. Clients can expect to find wares of high quality that comply with all requirements for safety with the supplier of industrial wares. A team of specialists is also at hand to offer technical expertise on appropriate fastening solutions that cater to your specific needs.