Starter Story · 2025-12-17
How I grew my app to $15K/month with TikTok
Louis David, a Canadian developer with ~10 failed apps, co-founded GlowUp, an AI makeup try-on app. Instead of building first, he mined TikTok makeup comment sections for demand and posted content before building; it went viral, so he shipped an MVP in FlutterFlow and got 100K users in ~3 days. Growth came from free organic TikTok: warmed-up US accounts, trend replication, anchor download links, up to 7 accounts, and a 'share your invite code' referral that flooded comments. One video drew ~48M views and ~$12.5K in a day. GlowUp has made ~$800K total and now does ~$15K/month at ~90% margins.
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Numbers mentioned
| Who | Metric | Value | Context | When |
|---|---|---|---|---|
| GlowUp | revenue | USD 15K/month approximate | Current monthly revenue | 1:34 |
| GlowUp | revenue | USD 800K approximate | Total revenue in the first year | 1:12 |
| GlowUp | users | 100K users approximate | Users in the first ~3 days after launch | 3:06 |
| GlowUp | users | 2M users approximate | Total users | 1:34 |
| GlowUp | paying users | 70K customers approximate | 'Around 70,000 paying customer'; unclear whether cumulative or active | 1:34 |
| GlowUp | rank | 1 rank | Peak App Store rank in Lifestyle category | 1:34 |
| GlowUp | rank | 4 rank | Peak App Store rank among all free apps | 1:34 |
| GlowUp | price | USD 9.99per customer /week | Weekly subscription, unlimited AI makeup looks | 9:21 |
| GlowUp | price | USD 39.99per customer /year | Yearly subscription | 9:21 |
| GlowUp | margin | 90% approximate | Profit margin; marketing cost can be zero with self-posted organic content | 10:45 |
| GlowUp | views | 48M viewsper video approximate | Single viral TikTok ('close to 48 million views'), with ~2M likes | 8:19 |
| GlowUp | count | 2M likesper video approximate | Likes on the viral TikTok | 8:19 |
| GlowUp | revenue | USD 12.5K/day approximate | Sales attributed to the one viral video in about one day | 8:19 |
| GlowUp | downloads | 60K installs/day approximate | Downloads attributed to the one viral video | 8:19 |
| GlowUp | count | 7 accounts approximate | TikTok accounts at peak | 7:32 |
| GlowUp | activity volume | 8–12 posts/day approximate | TikTok posts per day at peak across ~7 accounts (unclear whether per account or total) | 7:32 |
| personLouis David's earlier apps | count | 10 apps estimate | Apps built before GlowUp that failed (built first, marketed after, got no views) | 0:00 |