▁to ▁use ▁A pto ide ▁App s ▁Back up ▁that ▁keeps ▁a ▁record ▁of ▁the ▁apps ▁that ▁are ▁back ed ▁up . ▁All ▁the ▁applications ▁in ▁stores ▁are ▁managed ▁using ▁a ▁back office ▁in ▁the ▁A pto ide ▁site . ▁ ▁A pto ide ▁App s ▁Back up ▁uses ▁the ▁web services ▁to ▁upload ▁the ▁AP K ▁file ▁to ▁the ▁store . ▁To ▁know ▁what ▁applications ▁are ▁already ▁back ed ▁up , ▁A pto ide ▁App s ▁Back up ▁uses ▁the ▁info . xml ▁XML ▁file ▁available ▁in ▁the ▁store . ▁ ▁Inter faces ▁The ▁communication ▁between ▁the ▁Android ▁client ▁applications ▁and ▁the ▁store ▁is ▁done ▁using ▁a ▁XML ▁file ▁called ▁info . xml . ▁This ▁file ▁lists ▁the ▁applications ▁in ▁the ▁store ▁as ▁well ▁the ▁basic ▁information ▁about ▁each ▁application ▁available . ▁Info . xml ▁is ▁open ▁and ▁a ▁detailed ▁definition ▁is ▁available . ▁ ▁Part ▁of ▁info . xml ▁file : ▁ ▁< ap kl st >< version > 5 </ version > ▁< repository > ▁< base path > http :// mir ror . apk 1 0 . apt o ide . com / ap ks / 1 0 / apt o ide - f 6 3 c 6 f 2 4 6 1 f 6 5 f 3 2 b 6 d 1 4 4 d 6 d 2 ff 9 8 2 e / apt o ided ev / </ base path > ▁< app sc ount > 1 </ app sc ount > ▁... ▁</ repository >