Hue is a color identifier and picker app for iPhone and iPad. Built for ASO and keywoard search.

Backlink Checker is a link monitoring tool that monitors your backlinks & informs you if your backlinks are removed. We charge users in subscription plans or lifetime access to monitor their backlinks.

Your migraine diary, without the daily burden. Confirm each day in seconds, uncover possible patterns, and prepare a clear 28-day record for your next appointment.

Volume Booster helps you make quiet videos and audio files louder directly on your iPhone or iPad. | About 3,000 downloads a month from App Store search. We have never spent money on ads. | No servers, no backend and no monthly costs. Everything runs on the device. | Fully localized in 32 languages, with prices set per country. | Downloads come from App Store search ORGANIC. No ads

EarnStudies aggregates paid focus groups and research studies ($50-$400/session) from 20+ sources into one searchable dashboard, sold as a $6.99/mo membership. Organic traffic 10x'd this summer and 300 programmatic SEO city pages just shipped (only ~30 ranking so far, the rest are upside). Emerging ChatGPT/AI-assistant referral channel, 396 registered users ~90% margins, near-zero run cost, fully automated listing pipeline.

walldecor.io lets anyone preview wall decor on a photo of their own room before buying. The main hook is the free Wall Art Visualizer: upload a photo, drop in any artwork, and see it framed at its real size on your wall. The paid Lifetime plan ($29) adds wall repainting, wallpaper, and full room makeovers.