I keep reaching the limit of Read Operations exceeded which is 50k for less than two hours without much activity. In the datastore I have about 200 records of a class that contains 8 variables in the short type in Java. The user can add new instances in this class in the datastore. 

Each time the user reaches the website I have to show the results so I can show to max 50 000/ 200 = 250 users (usually even much less).

Is there any other way I can store the results persistently? Maybe I can put the 200 records as one and parse them manually in the code. 

I read about blobstore but I understand it's more about uploading files rather than database and querying. Should I use it. I want to keep the application in the free tier.