コンビニシール倶楽部 is a smartphone app that allows users to create custom sticker sheets and labels by importing photos. This "Sticker DIY app" offers various features such as cropping images, adding decorative frames and decals, selecting fonts for text, and more. Users can create four different types of stickers:

• "シール" (general sticker material)
• "お名前シール" (convenient for labeling personal belongings)
• "ステッカー" (square-shaped stickers)
• "千社札シール" (original design inspired by senjafuda, a type of Japanese shrine seal)

The app provides a cabinet for storing created materials and sheets, as well as functions for sharing sticker creations and integrating with social media. Each created sticker content is assigned a print number and QR code for convenience in printing at convenience stores. The printing fees at convenience stores are as follows:

• L-size sticker paper: 240 yen
• 2L-size sticker paper: 400 yen
• Square sticker paper: 320 yen

(Note: The printing service is available at Lawson stores that support "Contents Print" operated by Sharp. Please check the official support page for more details.)