TikTok case studies
9 shown
Cal AIHealth & Fitness
Built in High School at 17 — How Cal AI’s “Just Snap Your Food” Calorie Tracker Hit ~$50M ARR in 18 Months and Sold to MyFitnessPal
A photo calorie tracker built by Zach Yadegari and a teenage founding team: snap your meal and AI estimates the calories. Bootstrapped to ~$50M ARR and 15M downloads in 18 months, it was acquired by MyFitnessPal in 2025.
18 monthsMonthly (est.)$4.2M/moTikTokShort-form videoInfluencer marketingInstagramPingo AILearning
“Getting Roasted by an AI” Went Viral — How Pingo AI Hit $500K MRR in 14 Months on 200M TikTok Views
Two college roommates built an AI language tutor. Clips of the AI correcting users’ pronunciation racked up 200M+ TikTok views, taking it to $500K MRR (~$6M ARR) and 750K+ users just 14 months after launch.
14 monthsMonthly (est.)$500k/moTikTokShort-form videoInfluencer marketingMeme-drivenHalo AIPhoto & Camera
After 18 Months of Failure He Borrowed $100K and Bet It All — How the “Snap a Photo, Type a Prompt” AI Editor Halo AI Hit $300K/mo in 45 Days
An AI photo editor by Dillion Verma (previously of Magic UI): upload a photo, type a prompt, and it edits the image. After 18 months of failed products he took a $100K personal loan and went all-in, then used one UGC video format and 85 creators to reach 1.2B views in 120 days — hitting $300K/mo with no VC in 45 days.
2 monthsMonthly (est.)$300k/moTikTokShort-form videoInfluencer marketingPaywall optimizationSproutCareer & Jobs
Sprout, the “Tinder for jobs” built by a non-engineer in college — betting on distribution over building to reach $250K MRR in 8 months
A job-search app built by Nicole Cheung while at Claremont McKenna: swipe to apply, AI tailors a resume and cover letter per role, and an agent auto-submits on the employer’s site. With no ads and no VC it hit $250K MRR in 8 months — reusing the same creator-army playbook behind her earlier beauty app Glam Up (1M users in 6 months).
8 monthsMonthly (est.)$250k/moTikTokInstagramYouTubeShort-form videoGlowUpBeauty & Self-improvement
From ~10 Failed Apps to GlowUp — How a 24-Year-Old Solo Canadian Builder Used $0 in TikTok Ad Spend to Reach $800K in a Year and $1.2M ARR
GlowUp is a makeup app: upload a look you love, AI applies it to your own face and suggests the products to recreate it. After ~10 flops, Louis-David Paul-Hus launched it with $0 ad spend via TikTok and reached $800K in a year and $1.2M ARR.
12 monthsMonthly (est.)$100k/moTikTokShort-form videoInfluencer marketingInstagramnomadtableSocial
Built Solo by an Ex-Amazon Engineer — How nomadtable Turned Solo-Travel Loneliness Into 1M Downloads and $65K/Month in Under a Year
A meetup app for solo travelers built single-handedly by Jay Raavi: it matches you with nearby travelers in real time so you can meet up through activities and group chats. Fully bootstrapped (no team, no VC), it reached 1M+ downloads, 1M+ users, and $65K/month in under a year.
12 monthsMonthly (est.)$65k/moShort-form videoTikTokInstagramInfluencer marketingPep AIHealth & Fitness
A No-Code Student Built a Peptide Tracker in 2 Weeks and Hit $125K in 80 Days
A 22-year-old business major spotted the exploding ‘peptides’ niche on TikTok, vibe-coded an app in two weeks, lit it up with influencer marketing, and hit $125K total in 80 days.
3 monthsMonthly (est.)$60k/moTikTokInfluencer marketingDM outreachTrend-jackingFaceKitBeauty & Self-improvement
FaceKit, the face-rating app built by a 19-year-old — how ‘40 AI-generated influencers’ drove 100M views a month and $100k in 2 months with zero ad spend
A ‘scan your face and score it’ looksmaxing app built by 19-year-old Rafael Kramer: an iPhone TrueDepth 3D face scan quantifies symmetry and golden ratios. The growth engine isn’t human — it’s ‘40 AI-influencer accounts generated with Nano Banana.’ A few clippers mass-post them on TikTok, and 100M+ monthly views drove $100k in cumulative sales in two months with zero ad spend.
2 monthsMonthly (est.)$50k/moTikTokShort-form videoInfluencer marketingTrend-jackingReelFarmDeveloper Tool
A 25-year-old quit a $90k job and built ReelFarm solo — how a TikTok auto-posting SaaS hit $100k in 100 days and $200k in 163 days
A solo-built SaaS by Matt Welter that uses AI to auto-generate and schedule daily TikTok UGC videos and slideshows, driving cheap traffic to a site or app. He quit a $90k job and reached $100k in cumulative revenue in 100 days and $200k in 163 days — powered by dogfooding his own tool and building in public on X.
5 monthsMonthly (est.)$47k/moX (Twitter)TikTokShort-form video