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Programming · Tabnews · 🇧🇷 Brazil

Launching a habit app solo and doing the marketing with AI

A dev created Kada, a habit app with no account and no ads, and used AI for marketing.

Profession
Developer
Tools
Expo, IA generativa
Source
tabnews.com.br ↗
Country
🇧🇷 Brazil
Report date
October 10, 2026
Verified on
October 24, 2026
Illustrative photo: Health sector

What they did

Made a habit app with data stored only on the phone and used AI for promotional materials.

How it went

The author cites about 40 new devices in the last 28 days and a few tips.

Good to know

Keeping data only on the device simplifies LGPD compliance: you don't store user data.

The prompt

Write the store description (up to 400 characters) and 5 short posts for the app [name], which does [function] with no account, no ads and no tracking. Audience: [audience].

Replace what is in [brackets]. Prompt written by us from the account, not a literal copy of the source. Do not paste other people’s personal data (privacy laws such as LGPD and GDPR apply).

Summary in our own words. Results as stated in the original account; we have not tested or audited them. Read the source ↗ Found a mistake?

Illustrative photo: Services/Technology sector01
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Illustrative photo: Services/Technology sector02
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Illustrative photo: Services/Technology sector03
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Illustrative photo: Finance sector05
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Illustrative photo: Services/Technology sector06
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Illustrative photo: Services/Technology sector07
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A developer describes how commands suggested by an AI broke their dual boot and what they learned.

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Illustrative photo: Services/Technology sector08
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Leave a coding agent running for 24 hours and learn from the bill

An experiment letting Claude Code work unsupervised for a full day ended with a high bill and a security scare.

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