苹果设备需越狱，并且安装ifle文件管理器，这样就不需要通过电脑，直接在设备上修改。
未越狱的设备貌似可以通过PP助手。
进入游戏，随便做点什么，晚上寝室睡觉，此时生成存档，后台关闭游戏。
打开ifle，存档路径
/var/mobile/Containers/Data/Application/0E70FB63-252B-4DC6-B05C-CE4B67194CC6/Documents。
中间的 0E70FB63-252B-4DC6-B05C-CE4B67194CC6 文件夹，每台设备不一样，一个个打开看。
最后prpg_nobstudio_Data.txt，就是存档文件，可直接打开。
接下来就可以开始修改了：

幸福体力健康（搜索引号内字符）：
"stats":[100,100,100],
名声（搜索引号内字符）：
"fame":100,
金钱（搜索引号内字符）：
"money":100000,
人物属性（搜索引号内字符）：
"charStats":{"str":12,"name":"树干尸","cha":12,"int":12,"agi":12,"luck":12},
注：每项不可超过20

全狱友关系（搜索引号内字符）：
"relationPrisoner":[100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100],

全狱警关系（搜索引号内字符）：
"relationGuards":[100,100,100,100,100,100,100,100,100,100,100,100,100,100],

帮派关系（搜索引号内字符）：
"gangRelation":[100,100,100,100,100],

通话人员（只能显示4人）（搜索引号内字符）：
"phoneCall":["bob","gangster","gf","grandma","kids","lawyer","wife"],
通话人员关系（只能显示4人）（搜索引号内字符）：
"outsider":{"bob":100,"gangster":100,"gf":100,"grandma":100,"kids":100,"lawyer":100,"wife":100},

全狱友死亡（需去除自身编号）（搜索引号内字符）：
"deadList":
[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,
59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100],
注：确定自身编号方法，先完整填入1~100修改，然后进游戏在“受害者”一列中挨个往后数，直到数到自身就是其编号

全技能学习进度（搜索引号内字符）：
"skillProgressArray":[100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100],
全技能（搜索引号内字符）：
"skills":
["fighter","threaten","architect","joker","steal","kissAss","basketball","bodyBuilding","flirt","killer","social","chess","lockPick","stealth","shaolinKungfu","gamble","banker","disguise"],

全道具（搜索引号内字符）：
"inventory":[["candy",100],["pillSick",100],["pillHeal",100],["donuts",100],["rottenFood",100],["apple",100],["bread",100],["coffee",100],["burger",100],
["mantos",100],["chemical",100],["chisel",100],["wrench",100],["wireCutter",100],["sunGlasses",100],["pillSleep",100],["pillDiarrhea",100],["mirror",100],
["luckyBall",100],["spike",100],["dart",100],["dagger",100],["toothBrush",100],["nikiShoe",100],["shovel",100],["cockroach",100],["keyLaundryMold",100],
["keyExecutionMold",100],["diy",100],["rope",100],["guardCloth",100],["rainCoat",100],["meat",100],["coin",100],["flower",100],["showerGel",100],["pencil",100],
["longNail",100],["jokes",100],["origami",100],["gun",100],["druggedCoffee",100],["druggedMeat",100],["candle",100],["knife",100],["needle",100],
["keyExecution",100],["keyLaundry",100],["keyKitchen",100],["nailCutter",100],["soap",100],["idCard",100],["sampleID",100],["keyKitchenMold",100],["spoon",100],
["keyFake",100],["shirt",100],["car",100],["busTiming",100],["helicopter",100],["gossip",100],["weather",100],["paper",100],["keyCard",100],["unlockHandcuffs",100],
["shoe",100],["comb",100],["roachTrade",100],["dress",100]],

全宠物
"pets":["petCreeper","petRat","petLadyBug","petSkinnyCat","petBunny","petParrot","petRoachKing","petMouse","petSpider","petLizzard"],
全宠物立即生效
"petBonus":true,"petLadyBug":true,"petSkinnyCat":true,"petsAllowed":true,"praits":["petCreeper"],
注：如果修改前已经有宠物，则以上项目搜索避免重复
以上就是些比较实用的修改，其他数据修改可以自己摸索，都是比较简单的英文单词。
存档内一项项数据都是用逗号,隔开。并且每次保存这些数据都会重新随机排序，不过搜索可以轻松再次修改。