How To Scientifically Design Addictive Apps — Transcript

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1. 0:00Everyone thinks Duolingo is the gold
2. 0:02standard of gamification, but there are
3. 0:05apps that took the same [music]
4. 0:06ingredients and assemble them into
5. 0:09something that users genuinely cannot
6. 0:13stop using. Not because the content is
7. 0:15great, but because the architecture is
8. 0:18doing something to their brain they
9. 0:20don't even realize. And in this video,
10. 0:22I'm going to break down the three
11. 0:24specific psychological mechanisms
12. 0:27driving it. One that creates an itch
13. 0:29users can scratch, one that makes
14. 0:31quitting feel physically painful, and
15. 0:33one that turns the whole thing into a
16. 0:36status game no one can walk away from.
17. 0:39And by the way, I'm Tim. I've spent over
18. 0:42a decade designing digital products from
19. 0:45Spotify to startups that needed their
20. 0:48users to keep coming back every single
21. 0:51day. At my agency Sips App, we're
22. 0:53actively designing progression systems
23. 0:56like the ones I'm about to break down in
24. 0:58this video. Now, before we get into
25. 1:00this, I want to be upfront. These
26. 1:02mechanisms are morally complicated. They
27. 1:05can build better habits or trap people
28. 1:08in loops they didn't really sign up for.
29. 1:10I'm showing you the architecture. What
30. 1:12you build with it is your call. And as
31. 1:15we go through all three mechanisms, pay
32. 1:17attention to how they stack. This third
33. 1:19one is the reason the first two actually
34. 1:22stick. Without it, users can walk away.
35. 1:25With it, they basically can't. So, most
36. 1:27founders think gamification means
37. 1:30decorations, streak counters, badges,
38. 1:34leaderboards. That's the entry-level
39. 1:36version. The average app retains 7% of
40. 1:39users after 30 days. The apps I'm about
41. 1:41to break down are hitting up to 90% in
42. 1:45annual retention. The gamification is
43. 1:47the product. And like I just said, it
44. 1:50runs on three specific psychological
45. 1:52mechanisms. Let's start with the first
46. 1:54one, something I call the craving
47. 1:56machine. In the 1930s, B.F. Skinner put
48. 1:59animals in boxes and gave them food
49. 2:02pellets on unpredictable schedules.
50. 2:04Sometimes pressing the lever gave food.
51. 2:07Sometimes 10 presses got nothing.
52. 2:10Sometimes one press gave a jackpot. What
53. 2:12he discovered was that this
54. 2:14unpredictable reward schedule produced
55. 2:17the most compulsive behavior of any
56. 2:21reinforcement pattern. The animals
57. 2:22couldn't stop. Not because they were
58. 2:25hungry, because they were craving. And
59. 2:27here's the key. This is not pleasure.
60. 2:29This is craving. Variable ratio
61. 2:31reinforcement doesn't make you happy. It
62. 2:33keeps your brain in a constant chase for
63. 2:37the next hit. The same mechanism behind
64. 2:40slot machines, activating dopamine
65. 2:42pathways nearly identical to gambling.
66. 2:46Duolingo uses a version of this. XP
67. 2:48after each lesson. It's predictable.
68. 2:50It's nice. But let's take a look at an
69. 2:52app called Finch. Over 14 million
70. 2:55downloads, 675,000
71. 2:58ratings at 4.9 stars on iOS, Apple's
72. 3:02Editor's Choice. It sounds insanely
73. 3:05wholesome, right? So, this is how it
74. 3:06works. You raise a virtual bird by
75. 3:09completing real-life self-care tasks,
76. 3:12journaling, breathing exercises, mood
77. 3:15check-ins. Your little bird grows up,
78. 3:17you're building healthy habits. What
79. 3:19could possibly be manipulative about
80. 3:22that? Here's where Finch enters craving
81. 3:24machine territory. You pick a location
82. 3:27for your bird from a rotating set of
83. 3:30destinations. Three options for free
84. 3:32users, nine for paid. You commit, and
85. 3:34then your bird adventures into that
86. 3:37location every day, potentially for
87. 3:39weeks. Each location has 15 to 20 unique
88. 3:43discoveries your bird might bring back.
89. 3:45Some days your bird finds something
90. 3:47amazing. Other days, nothing special.
91. 3:50You can't predict what's coming. And
92. 3:52here's the part that makes it stick.
93. 3:53Your bird develops personality traits
94. 3:56like confidence, curiosity, resilience
95. 3:59that evolve based on how you respond to
96. 4:02its adventure stories. But even the
97. 4:04bird's likes and dislikes for
98. 4:06discoveries develop in ways you didn't
99. 4:09choose. The app explicitly says your
100. 4:12bird is creating their own personality.
101. 4:15The whole system tracks your bird's
102. 4:17evolving personality profile and growth
103. 4:19stage across six traits. You never quite
104. 4:22know what your bird is becoming. So,
105. 4:24your brain stays in that chase state,
106. 4:27checking, coming back, pressing the
107. 4:30lever. Now, to be fair, Finch does this
108. 4:32gently. You barely notice it happening.
109. 4:35But some companies don't bother being
110. 4:37subtle about it. League of Legends has
111. 4:39one of the most sophisticated
112. 4:42craving machines ever built. Their
113. 4:44ranked ladder looks fair on the surface.
114. 4:47Win games, climb. Lose, drop. But
115. 4:50underneath, there's a hidden system
116. 4:52called MMR that shapes your entire
117. 4:56experience. Win more, and your hidden
118. 4:58rating rises to face tougher opponents.
119. 5:02Lose more, and it drops, so matches get
120. 5:05easier. The system is constantly
121. 5:08calibrating to keep you near a 50% win
122. 5:11rate. Players experience it as some
123. 5:14games I crush, some games my teammates
124. 5:17are terrible. But the algorithm is
125. 5:19controlling the ratio. You climb 100
126. 5:22points one week, drop 200 the next, and
127. 5:25then climb 150 again. The
128. 5:27unpredictability is the craving. And
129. 5:29over 130 million monthly players keep
130. 5:32pressing the lever. Have you ever opened
131. 5:35an app not because you needed to, but
132. 5:38because you just wanted to check? That
133. 5:40pull to check, that urge, that's the
134. 5:43craving machine at work. Now, the
135. 5:45takeaways for founders here are as
136. 5:47follows. Most of your reward system
137. 5:50should be predictable and transparent,
138. 5:52but somewhere in that system, add an
139. 5:55element of surprise, a bonus reward they
140. 5:58didn't expect, um milestone that comes
141. 6:01early. The best systems are mostly
142. 6:03trackable with moments of
143. 6:05unpredictability sprinkled in. Two,
144. 6:08you're not making everything random.
145. 6:10You're adding controlled surprise into
146. 6:13an otherwise transparent system.
147. 6:15Occasionally, something delightful
148. 6:17catches them off guard. Three, track one
149. 6:20system users obsess over. Finch's
150. 6:23six-trait personality profile, League of
151. 6:25Legends' league points. One visible
152. 6:28measure of total progress creates more
153. 6:30engagement than 20 scattered badges.
154. 6:34Now, craving gets users to press the
155. 6:36lever, but there's a second mechanism
156. 6:38that prevents them from ever walking
157. 6:41away, something I call the infinite
158. 6:43game. Have you ever been on day 47 of a
159. 6:46streak and felt genuine anxiety about
160. 6:49breaking it? Not because the streak
161. 6:51really matters, it objectively doesn't,
162. 6:53but the thought of losing 47 days of
163. 6:57progress physically hurts. That's loss
164. 7:00aversion. Humans feel the pain of losing
165. 7:02something roughly twice as intensely as
166. 7:05the pleasure of gaining the equivalent.
167. 7:08And the smartest apps have turned this
168. 7:11into an architecture. Duolingo uses
169. 7:13streaks, but a Duolingo streak is a
170. 7:16single thread. Break it, lose your
171. 7:18count. The streak freeze is smart, but
172. 7:21it's still fundamentally one counter,
173. 7:23one number. At Sips App, we designed a
174. 7:25diamond streak system for our client
175. 7:28Freecash that takes this a step further.
176. 7:31Streaks don't just count, they unlock
177. 7:33diamonds. Hit 7 days, first diamond. Hit
178. 7:3642 days, a new one. Miss a day, and you
179. 7:39risk losing the diamonds you've
180. 7:41accumulated. The freeze has to be
181. 7:43earned. The diamond path isn't infinite,
182. 7:45but it's much longer than a weekly
183. 7:47reset. And each milestone feels like
184. 7:50something you genuinely earned and don't
185. 7:53want to give up. This connects to a
186. 7:54deeper principle, the refusal to create
187. 7:57terminal achievement states. The most
188. 8:00addictive apps never let you finish.
189. 8:02League of Legends resets its ranked
190. 8:05ladder every season. 5 hours climbing to
191. 8:08platinum, then you drop back down to
192. 8:10gold when the season flips. There is no
193. 8:13winning in these systems. There's only
194. 8:16more. And here's the case study that
195. 8:18proves this outside of game, Peloton.
196. 8:2190% annual subscriber retention. Listen
197. 8:24to that. That's insane. Not because of
198. 8:26the $1,700 bike. The real retention
199. 8:29engine is the community. Live
200. 8:31leaderboards ranking your watts output
201. 8:33against thousands of riders in real
202. 8:36time. Monthly challenges. Instructors
203. 8:38who call out top performers by name. And
204. 8:41accumulated metrics that never cap out.
205. 8:44Total classes, total miles, total
206. 8:46output. A user at 500 classes isn't
207. 8:50stopping when 600, 700, 1,000 or all
208. 8:53theoretically reachable. If you're a
209. 8:55founder, take this with you. One, audit
210. 8:58your product for done states. If a user
211. 9:01can complete your app, you have a
212. 9:03ceiling on retention. Two, build streaks
213. 9:06that compound into something, not just
214. 9:08numbers that reset. Make streaks unlock
215. 9:11tangible value that the user doesn't
216. 9:13want to lose. And three, if your product
217. 9:16has levels, consider periodic resets
218. 9:19that force re-engagement while
219. 9:21preserving earned status. League resets
220. 9:24rank, but keeps honor levels and
221. 9:26cosmetics. That balance is key. Now,
222. 9:28quick note, if designing this kind of
223. 9:30progression system sounds valuable, but
224. 9:33you're not really sure where to start,
225. 9:35at Sips App, we run free design strategy
226. 9:38sessions focused on exactly this kind of
227. 9:41retention architecture. Link's down
228. 9:43below if you want to grab a spot. So,
229. 9:45craving keeps users engaged, and the
230. 9:48infinite game prevents them from
231. 9:50leaving. But the third mechanism makes
232. 9:53these systems truly inescapable. This
233. 9:56one I call the invisible scoreboard. As
234. 9:58humans, we have a deep instinct to
235. 10:01compare ourselves to other people.
236. 10:03Someone checks their fitness tracker not
237. 10:05for their own steps, but to see how they
238. 10:08stack up against a friend. That's social
239. 10:11comparison theory. And the most
240. 10:13addictive apps don't just enable it.
241. 10:16They build their entire experience
242. 10:18around it. Strava has over 180 million
243. 10:22registered athletes competing on
244. 10:24segments, specific routes ranked by
245. 10:26fastest time. The leaderboard is so
246. 10:28powerful that in 2025 and early 2026,
247. 10:32Strava had to delete 3.9 million
248. 10:35activities because users were gaming the
249. 10:38system. People were uploading e-bike
250. 10:40rides as regular bike rides just to
251. 10:42climb the rankings. We're talking about
252. 10:44no prize money, no sponsorship, no
253. 10:47financial reward whatsoever. Users were
254. 10:50willing to manipulate the results over a
255. 10:52position on a leaderboard that gives
256. 10:55them nothing but bragging rights. That
257. 10:58tells you everything about the force of
258. 11:00social comparison. Now, Peloton takes
259. 11:02this further with parasocial
260. 11:04relationships. Instructors like Cody
261. 11:07Rigsby and Ally Love have become
262. 11:09celebrities. Users attend classes to see
263. 11:13their instructor. They even follow the
264. 11:15instructor's life updates. This
265. 11:17emotional bond transforms Peloton from a
266. 11:19fitness tool into a social community.
267. 11:22And here's the insight. In an age where
268. 11:24AI can replicate almost any feature, the
269. 11:27combination of gamification and real
270. 11:30human connection creates an unbreakable
271. 11:33moat. AI can generate a workout plan. AI
272. 11:36can build a leaderboard, but AI can't
273. 11:39replace the feeling of Cody yelling,
274. 11:42"You're doing great there, Tim." when
275. 11:43I'm struggling at number 42 on the
276. 11:47leaderboard. The scoreboard creates the
277. 11:49competition. The human connection makes
278. 11:52it matter. You need both. Now, when
279. 11:54progression becomes a status symbol,
280. 11:57social comparison kicks in
281. 11:59automatically. And this is what I teased
282. 12:01at the beginning. The invisible
283. 12:03scoreboard is the mechanism that makes
284. 12:06the other two permanently irreversible.
285. 12:09Think about it. Without social
286. 12:11visibility, a user can quit the craving
287. 12:13machine privately. They can break their
288. 12:16infinite game streak and nobody knows.
289. 12:19But the moment their progression is
290. 12:21visible on a leaderboard, the moment
291. 12:23their diamond tier is a status symbol
292. 12:27others can see, quitting stops being
293. 12:29about losing progress. It becomes about
294. 12:32publicly admitting you stopped. The
295. 12:35social layer turns engagement into
296. 12:38identity. And identity is the one thing
297. 12:41people never voluntarily walk away from.
298. 12:44This is what founders should care about
299. 12:45more than anything else in their
300. 12:48retention stack. The craving machine
301. 12:50gets users through the door. The
302. 12:52infinite game keeps them running. But
303. 12:55the invisible scoreboard is what makes
304. 12:57them never want to be seen standing
305. 12:59still. So, remember. One, make
306. 13:01achievements visible to others. Social
307. 13:04visibility transforms personal goals
308. 13:07into status goals. Two, build community
309. 13:10dynamics, not just features. Peloton
310. 13:12proves human connection amplifies
311. 13:15gamification in ways that mechanics
312. 13:18alone can't match. Three, design your
313. 13:20metrics as a mirror, not just a report.
314. 13:23When users see their stats, they should
315. 13:25immediately think about how they compare
316. 13:28to other people. Now, the TLDR for any
317. 13:31founder watching this. We talked about
318. 13:33three things. The craving machine,
319. 13:35unpredictable rewards that keep users
320. 13:38chasing. Not a vending machine, but a
321. 13:41system where the next hit could come on
322. 13:43the very next action or 10 actions from
323. 13:46now. The infinite game, loss aversion,
324. 13:49and the refusal to let users finish.
325. 13:51Streaks that compound into something
326. 13:54worth keeping. A product that never says
327. 13:57you're done. And lastly, the invisible
328. 13:59scoreboard, social comparison that turns
329. 14:01engagement into a status game and locks
330. 14:05the other two mechanisms in place
331. 14:07permanently. One core truth. It's not
332. 14:10what these apps reward, it's how they
333. 14:12structure the reward. The difference
334. 14:14between a Duolingo streak and a full
335. 14:17progression addiction system is the
336. 14:19difference between decoration and
337. 14:22architecture. Now, if you found this
338. 14:24breakdown useful and you're thinking
339. 14:26about how to apply these principles for
340. 14:28your own app, for the last time, we open
341. 14:31up a few free design strategy calls each
342. 14:34month at ZipZap. Link's down below. And
343. 14:36also, check out this video here
344. 14:38somewhere where I break down the
345. 14:39emotional design layer, the psychology
346. 14:42that gets users in the door before
347. 14:45progression keeps them locked in. Now,
348. 14:48until the next one, have a great life.