Invention

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Across
  1. 2. a mobile phone that also has some of the functions of a computer, for example the facility to use apps and the internet
  2. 5. worth a lot of money
Down
  1. 1. a small computer that can work with a battery and be easily carried
  2. 2. right or appropriate for a particular purpose or occasion
  3. 3. a piece of software that you can download to a device such as a smartphone or tablet, for example to look up information or to play a game
  4. 4. that can help you to do or achieve what you want