هايدي فتاة الجبل بدون انترنت is an Android app that retells the captivating story of Heidi, a young girl who lives with her aunt and is sent to live with her grandfather in the Swiss Alps. The story is adapted from the novel Heidi by Swiss author Johanna Spyri. The app is free to download and does not require an internet connection to use.

The story revolves around Heidi, who is sent to live with her grandfather in the Alps. Her grandfather is an old man who lives in an isolated cabin away from the village. He refuses to send Heidi to school and instead sends her to graze the sheep with Peter, a young shepherd. When Heidi's aunt comes back to take her away, the village women inform her that Heidi has not been sent to school. Heidi is then sent to live with a wealthy family in Frankfurt. However, the governess does not want Heidi to stay with Claire, the wealthy family's daughter, as she is four years older than Heidi. Heidi is then left at the mansion, where she befriends Claire, who is paralyzed.