I got curious about how many non-WK kanji there were on Satori Reader, so I wrote some scripts to download all the stories and calculate the frequency of non-WK kanji. I figured this might help in case people want to study them (or the WK staff is looking for ideas on which kanji to add :P)
Additionally, I also calculated the fraction of kanji on Satori Reader that you will know after each level of WK while I was at it.
Note that this is purely based on kanji appearance. Sometimes a WK kanji will appear on SR, but with a reading that WK doesn’t teach you.
Also note that in some cases, Satori Reader has multiple versions of a story available. In these cases, I went with the more advanced version.
Anyway, here’s the list of all non-WK kanji on SR, along with the number of times they appear.
Total for all stories:
370: 彦
30: 餌
28: 窟
19: 拭覗
18: 頷
17: 呑撫頬
14: 辿
11: 掴掻潰腫
10: 侶唾嗅溜瞑
9: 吊杖舐馴
8: 溢癌罠釘
7: 揉眩
6: 吠唸嚇
5: 凧呟笹糞這餃騙
4: 惚柿紐麓
3: 俯只怯惹毯獺碗絨膿茸踪馳
2: 佇冴剃剥叶堵塞妬姪嫉扁捧掟晃晦柚桁歪滲爬爺甥睨稀筑箋絆腺苔蕎讐賑轟辰霞鷹
1: 些仇佃倦冤厨唖囁垢壺尖幇廻恍悶悸惧攣斡暢桶棺椀槌洲淹溺痕痙瘍祟穿脾腎腑腿膏膳茄葛蓋薪薫藁蝕襖詫躇躊鎧閃陀頓骸
And here are the lists broken down by story:
Akiko’s Foreign Exchange (133 chapters):
6: 溜
3: 拭
2: 唾掻筑釘
1: 佇凧呑垢廻悶捧撫溢腫辿頬頷騙
Closeup: After the Tokyo Subway Attack (11 chapters):
2: 潰
1: 冤晃躇躊
Closeup: Obon Society (9 chapters):
2: 辰
Closeup: The Zama Nine Murders (11 chapters):
8: 吊
1: 幇斡稀脾腎
Dialogs: Airport (10 chapters):
1: 潰薫
Dialogs: Bus Stop (8 chapters):
None
Dialogs: Hospital (15 chapters):
7: 腫
3: 膿
2: 扁腺
1: 塞溜箋
Dialogs: Hotels (10 chapters):
2: 只桁
Dialogs: Restaurants (28 chapters):
5: 餃
1: 厨膳茄襖
Dialogs: Train Station (10 chapters):
2: 鷹
1: 洲這
Fujiki Consulting Services (41 chapters):
11: 餌
10: 侶
7: 頷
3: 拭
2: 辿
1: 唸惧掴掻撫攣歪淹痙祟藁覗讐頬騙
Hole in the Wall (58 chapters):
8: 罠
3: 嗅
2: 拭爺頷
1: 唾掟潰眩睨絆腫膏賑頬餌
John and Friends in Tokyo (35 chapters):
7: 馴
1: 佃只潰碗穿蕎
Kiki-Mimi Radio (27 chapters):
6: 呑
2: 吠
1: 撫柿潰轟這
Koibito (52 chapters):
3: 掴揉
2: 妬嫉惚騙
1: 些俯冴塞恍惹歪滲眩釘閃
Kona’s Big Adventure (45 chapters):
2: 吠撫辿
1: 嗅眩苔覗釘頬餌
Kona’s Big Adventure II: The Journey I Live (88 chapters):
16: 餌
9: 舐
8: 撫癌
4: 嚇掻覗
3: 嗅怯這
2: 剃呑掴溢頬麓
1: 佇倦冴唸唾晦毯瘍睨稀紐絆絨腫薪蝕辿釘鎧頓頷馳骸
Meditation (6 chapters):
10: 瞑
2: 溜
1: 囁
My Sweetie Is Japanese (28 chapters):
5: 糞
2: 姪甥
1: 拭暢椀槌潰碗頷馳
News (60 chapters):
3: 踪
2: 爬霞
1: 呑拭晃痕紐腿餌
Oku-Nikkou (62 chapters):
28: 窟
5: 笹
4: 凧頷
3: 拭獺茸
2: 呟唾嚇掻柿頬麓
1: 剥吠唸壺捧掴杖桶棺溢碗苔葛蓋蕎覗賑轟釘騙
Sakura and Suzuki’s Long Distance Relationship (43 chapters):
1: 彦惚
Secret (98 chapters):
339: 彦
7: 頬
4: 唾揉
3: 呑拭溢眩
2: 俯呟堵惹掴辿
1: 仇叶唖嗅掻晦毯溜溺滲絨腑腫覗釘陀頷
Streetside Interviews (17 chapters):
None
The Jam Maker (60 chapters):
8: 杖
3: 辿
2: 嗅撫柚紐
1: 吊呑呟拭柿毯溢絨釘頬頷
The Neighbor (12 chapters):
4: 覗
2: 掴
The River Sanzu (20 chapters):
30: 彦
4: 潰
1: 唸眩覗
Trees of Happiness (24 chapters):
3: 覗
2: 馴
1: 叶拭箋辿
Wedding of the Fox (58 chapters):
3: 呑覗
2: 唸撫辿
1: 剥吠尖悸惚拭掟掻詫讐頬馳
And lastly, here is the fraction of kanji on SR that you will know after each level of Wanikani:
1: 8.107%
2: 16.071%
3: 21.245%
4: 26.281%
5: 35.560%
6: 43.885%
7: 48.229%
8: 53.403%
9: 57.906%
10: 62.093%
11: 64.114%
12: 68.914%
13: 71.049%
14: 72.353%
15: 74.840%
16: 76.713%
17: 78.152%
18: 79.183%
19: 80.224%
20: 81.743%
21: 82.506%
22: 83.733%
23: 84.902%
24: 85.707%
25: 86.572%
26: 87.260%
27: 88.467%
28: 88.934%
29: 89.511%
30: 90.203%
31: 90.931%
32: 91.758%
33: 92.144%
34: 92.391%
35: 92.788%
36: 93.359%
37: 93.829%
38: 94.526%
39: 94.812%
40: 95.274%
41: 95.857%
42: 96.186%
43: 96.414%
44: 96.711%
45: 97.134%
46: 97.571%
47: 97.717%
48: 97.947%
49: 98.152%
50: 98.281%
51: 98.428%
52: 98.542%
53: 98.594%
54: 98.655%
55: 98.744%
56: 98.798%
57: 98.833%
58: 98.879%
59: 98.891%
60: 99.050%
I hope this helps people.
Edit 6/25/22: Updated the stats for the chapters released since the original post.
Edit 4/07/23: Updated the stats for the chapters released since the original post.
Edit 1/28/24: Updated the stats for the chapters released and new kanji added to WK since the original post.