BlastSignals
0upvoteCrypto signals for 15+ pairs, refreshed every 30 minutes: BUY, SELL or WATCH with a confidence score and the indicators behind it.
// for people who build with AI
App ideas worth shipping.
Every day we turn a real complaint into a small app you could build this weekend: who has the problem, who pays, how hard it is, and the prompt to start with in Cursor, Claude Code or Lovable.
Latest ideas
All ideas →IDEA #010 · 31 OCT⏱ a weekend
Retainer hours balance link for freelancers
A no-login page that shows each retainer client how many hours they've used and have left, so the freelancer stops answering 'where did my hours go?' emails.
$9-15/month per freelancer, or $...difficulty 2/5freelancersretainers
IDEA #009 · 30 OCT⏱ about a week
Unanswered-enquiry list for small service shops
Forward emails, web-form messages and missed-call notes into one list that nudges you when a lead has gone 24 hours without a reply.
$9–19/month per business.difficulty 3/5small-businesscrm
IDEA #008 · 30 OCT⏱ a weekend
One-tap 'job done' invoicing for solo house cleaners
A cleaner taps 'done' and the client gets a pay link, with a weekly list of who still owes, for far less than field-service suites.
$9–15/month per cleaner, or a fr...difficulty 2/5small-businesscleaners
IDEA #007 · 30 OCT⏱ about a week
Lesson-credit and makeup tracker for private tutors
Parents buy prepaid lesson packs, and the app tracks credits, makeups and expiry using the teacher's own cancellation rules.
$8–12/month per teacher.difficulty 3/5small-businesstutors
IDEA #006 · 30 OCT⏱ about a week
Card-on-file no-show fee with a one-tap waive
Solo stylists and booth renters collect a card at booking and charge a no-show fee they can waive in one tap, with no marketplace cut or extra client app.
$9–15/month flat, with Stripe's...difficulty 3/5small-businessbooking
IDEA #005 · 30 OCT⏱ a weekend
Ready-for-pickup texts for small repair shops
One tap on a job sends the customer a text and a tracking link, so bike, shoe, watch and tailor shops stop answering 'is it ready?' calls.
$12–19/month per shop, plus SMS...difficulty 2/5small-businessrepair-shops
Built with vibes
The wall →
Weekdrop.app
0upvotePick your week's photos and clips; Weekdrop cuts them into 3 ready-to-post reels with a hook, subtitles and transitions.
// the weekly drop
5 app ideas nobody built yet. Every week.
Real problems people complain about, who would pay, how hard it is to build, and the prompt to start with. Free.
One email a week. Unsubscribe in one click.News and guides
The blog →
Tools · 6 min
Best Lovable Alternative for Building a Real App (2026)
Looking for a Lovable alternative? Compare Bolt, Replit, v0 and Cursor by how you pay, where code lives and what breaks,...
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Replit vs Lovable: Which AI App Builder Should You Pick?
Replit vs Lovable compared for solo builders: backend control, UI polish, pricing, and a simple way to decide before you...
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Replit Pricing 2026: Core, Pro (ex-Teams) and Agent Costs
What Replit costs in 2026: Starter, Core and Pro plans, how effort-based Agent billing works, and how to stop credits ru...
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Best Cursor Alternative in 2026: Free and Paid Picks Compared
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Guides · 5 min
Claude Code Best Practices: 15 Habits That Help You Ship
15 practical Claude Code habits: plan first, keep CLAUDE.md short, use hooks, verify every change, and manage context so...
Guides · 5 min
Agentic Coding Explained: How It Differs From Vibe Coding
Agentic coding vs vibe coding in plain English: what changes, when to use each, and a paste-ready prompt to make your AI...