Plus15
+15 is a fun daily spatial puzzle that is simple but not easy! Built around one rule: divide the grid into exactly 15 regions, and every region must add up to 15. Regions vary in size, every tile is used, and each puzzle has one unique solution. Play a new daily puzzle across Easy, Medium, and Hard difficulties. Clean, distraction-free, and built for deduction... not guessing.
Plus15
+15 is a fun daily spatial puzzle that is simple but not easy! Built around one rule: divide the grid into exactly 15 regions, and every region must add up to 15. Regions vary in size, every tile is used, and each puzzle has one unique solution. Play a new daily puzzle across Easy, Medium, and Hard difficulties. Clean, distraction-free, and built for deduction... not guessing.
Last 30 days revenue
-
Tracked since 4/19/2026
MRR
-
No active subscriptions
Founder
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Gluten Free Scanner: Is it GF?
Mobile Apps
Gluten Free Scanner is a passive ASO-driven utility app in the evergreen gluten-free/celiac niche. It has generated $5,810+ since launch, currently doing ~$470 MRR and $750+ in the past 30 days, with 95%+ margins and only ~$2–3/month in AI costs. It ranks top 10 in the US and top 5 in Canada, Germany, and other countries despite no updates in 11 months. Built in Expo React Native, with upside via localization, Android launch, paid ads, UGC, and ASO.
Revenue (30d)
$713
49%
Asking Price
$15k
$12k
Multiple
1.4x
FOR SALE
Sidestack.io
SaaS
SaaS for the most successful writers on Substack & the #1 Substack Directory that helps readers, brands, and writers discover top-performing newsletters.
Revenue (30d)
$2.1k
5%
Asking Price
$89k
$59k
Multiple
2.3x
FOR SALE
Babygrid
Mobile Apps
Track every step of your baby’s journey with the ultimate baby tracker app designed for new parents and caregivers.
Revenue (30d)
$132
Asking Price
$5k
Multiple
3.2x
