14 professional tools
備物致用
I spot real pain points in life and work — then build small tools that solve them.
Now live · Early-bird program
Deermory — a family health journal
A journaling app that keeps the health of your family in your own hands: journals, vitals, medicines, and medication plans — all local-first. A limited-time early-bird discount code for the lifetime plan is available now, and the first-year discount on the annual plan is also live — see in-app pricing for details.
- Early-bird code: discount on the lifetime plan, limited quantity
- First-year annual plan discount is live — see in-app pricing
- Direct line: feedback goes straight to the developer
EARLYBIRD2026 Lifetime plan early-bird discount · limited quantity · ends 2026-10-30
Promo codes
Every app opens time-limited promo codes now and then, published only on this page. Copy the ones live today and check back for the rest.
Deermory
A family health journal for you and the people you care about
Valid until 2026-10-30
NetGraph
Wi-Fi heatmaps & site survey
Pure Archive
Listing copy & icons workspace
Codes are limited and first come, first served. Actual prices are shown on the App Store.
How to redeem
Redeem in the App Store
Works with every app
- 1 Tap the promo code above to copy the App Store redemption link
- 2 Open the link in your browser, or enter the code via the App Store's "Redeem Gift Card or Code"
- 3 Review the discount details
- 4 Complete the purchase at the discounted price
Redeem inside the app
Deermory only, for now
- 1 Open Deermory
- 2 Go to Settings
- 3 Tap "Redeem Code"
- 4 Enter your promo code and purchase at the discounted price
Built-in redemption is on its way to more apps.