Why can't I install app. after they are downloaded

The default on most tablets is to install apps to internal storage so the SD card does no good by itself. You can go into Settings>Applications and change the location for each app to the SD card. Likewise anything else you put on a tablet, particularly photos and videos get stored in internal storage. If you have taken a lot of photos and videos they can fill up your storage quickly. You can change this in the Camera app by tapping the settings icon and changing the storage option to SD card. You will still need to actually move existing photos and videos to the SD card manually or copy them to external storage and delete them. I would also change the image and video resolution in Camera settings to 640x480. This is plenty good enough for pictures you just want to look at on the device or share online.

The internal memory cards of some Android devices are partitioned for app storage and installation. Some of them have partitions that are quite small such as one Gigabyte or smaller. The remainder of the storage cannot be used for apps.

If it keeps saying not enough memory space then chances are the app partition is full. The only way to free up some space is to uninstall some apps that are stored there but not being used. You can see which apps can be uninstalled in Settings > Apps and look at them one by one to see if an uninstall option is listed. Simply click *uninstall* to remove them from the app storage partition. This will free up some extra space for some new apps or for updates to older apps you still like and use.

Also some of the apps might show an option to move them to an external SD card (if your device has a slot for one and if an SD card in inserted therein). Do move any and all to the external SD card of you have that option as that will also free up that space from the internal SD card.

It sounds to me like the internal memory petition has gone bad. When this happens it will retain no changes and boots up like it was when new every time it's turned off. Any changes are only retained if you put it to sleep and keep it charged. If the memory partition for apps has gone bad it will no longer be able to download or update apps from the Store and you will be stuck with the original apps and that is all unless you can managed to download some apps to an external SD card in the slot (if it has one).

You can tell if your memory partition has gone bad by using
Settings > Storage and observe the top bar graph. if it's green all the way across and shows 0.00 bytes of storage then the internal SD card memory partition is gone or the memory is defective.

Even so, you should still be able to synch using Google to do so. But, never turn it off again or you will be back to square one again and will have to do everything over and over and over.

I have a Nobis NBO9 that has this same problem. They fixed it once but it went bad again two weeks later. And, they balked at fixing it a second time so I got ripped off. I suspect there is a lot of defective internal SD memory cards in circulation from the reports I see as I research these failures.

You really should check the manual, to see how to move or to install the apps on the SD card. Not all Android tablets and phones work the same. You not giving any detail of yours does not make this easier.
Some systems can install the apps on the SD card and they can run from the card. Others only allow you to put apps on the SD card, but before you can use them, you have to install them in the internal memory.
Again, check the manual.

Download and install ES file explorer. When run, you'll see the main and added memory. Find the app you want to move, hard press and hold it, and drag to new place.

See about moving from onboard storage to the microSD card to clear up space.

Depending on what device you have you have to tell your device where to install or moves folders manually. Always describe what your problem is as accurate as you can and always specify what device and model..

Although the Android phones and tablets can add (micro) SD cards, that will not extend the internal memory. You should see the SD card as a extra hard disk. Here you can hold pictures and music. As soon as you installed extra apps, and the phone or tablet is telling you the memory is full, you only can free memory, by deleting apps from the main memory.

If you thought I can buy a phone or tablet with less memory, because the SD cards are very cheap and will extend the internal memory, you thought wrong.

You can't transfer an app to the memory card and still use it as if it was in the main memory.

This more than likely means your internal storage is low and not the SD card and may not have anything to do with your pictures but more so with your apps. Go into settings and see if your tablet has the feature to set where your downloads and other media is stored, by default that will be your internal memory. change it to SD card or USB storage. In Settings you can also click on your apps individually and transfer them manually one by one to the SD card or USB storage or download a file manager and do so all at once. Some apps and files may not have the feature to transfer these apps the tablet came with or apps you downloaded that uses the internal memory. By default if a memory card is in you tablet pictures are automatically store there, if this is not the case the easiest way to transfer is connecting the tablet to a computer/laptop and transfer to the card or again use a file manager.

there are 7 apps in the kik family, you can remove some of the other apps that were installed or you can get an Micro SD card up to 32 gigabytes and move the apps to the card if possible