AppGrowthKit vs last30days: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of AppGrowthKit and last30days — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
AppGrowthKit
AppGrowthKit
An AI screenshot maker that turns raw app screens into localized, store-ready App Store and Google Play listing images and app icons.
Key features
- AI Layout and Copy Planning: Describe your product and the AI drafts layout, headlines, and store copy before anything changes, then applies the edits across every screen from a single prompt.
- AI Localization for 42 Locales: Pick a market and the AI translates and adapts titles, subtitles, and custom text while layouts, real app screens, and editable layers stay exactly where you put them.
- AI App Icon Generation: Describe the feeling, subject, and style you want and generate one, two, or four icon directions in a single pass to compare before choosing.
- Layered Canvas Editor: Organize screenshots, frames, text, and backgrounds as layers and tune fonts, colors, spacing, and sizing without leaving the editor.
- Current Device Frames: iPhone 17, iPhone Air, Pro Max, iPad, and Android frames kept up to date, with selectable finishes and automatic scaling when you drop in a screenshot.
- One-Click Store Export: Download every screen in a project at once in the exact formats Apple and Google require, with no manual resizing and no watermark on any plan.
- Browser-Side Composition: The canvas runs in the browser, so app screens do not have to be uploaded to AppGrowthKit servers to compose a set.
- Credit-Free Manual Work: AI credits are spent only on generative work — layout planning, copy, localization, and icons — while the editor, frames, fonts, gradients, and exports stay unlimited on every plan.
Best for
- Indie App Launch: Producing a full App Store and Play Store screenshot set for a first release without hiring a designer.
- International Rollout: Generating localized screenshot copy for dozens of markets from one master set before expanding a listing worldwide.
- Listing Refresh: Rebuilding store visuals after a UI redesign or a new device size by dropping updated captures into existing layouts.
- App Icon Exploration: Comparing several AI-generated icon directions side by side before committing to the one that sits beside your screenshots.
- Store Conversion Testing: Iterating on headlines and layouts between releases to test which framing converts better on the listing page.
- Small Studio Handoff: Replacing the manual resize-and-reformat step between design tools and App Store Connect or Play Console submissions.
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last30days
mvanhorn
An AI agent skill that researches any topic across Reddit, X, YouTube, HN, Polymarket, and the web, then synthesizes a scored, grounded brief.
Key features
- Multi-Source Search: Searches Reddit, Hacker News, X, YouTube, TikTok, Polymarket, and the web in parallel.
- Engagement Scoring: Ranks results by upvotes, likes, transcripts, and real-money Polymarket odds instead of editorial picks.
- AI Judge Synthesis: An agent synthesizes all sources into a single grounded brief.
- Broad Host Support: Installs in Claude Code, Codex, Cursor, Copilot, Gemini CLI, and 50+ Agent Skills hosts.
- Zero-Config Start: Reddit, HN, Polymarket, and GitHub work immediately with no setup.
- Setup Wizard: Unlocks X, YouTube, and TikTok sources in about 30 seconds.
Best for
- Trend Research: Quickly understand what people are saying about a topic across social platforms.
- Market Sentiment: Combine social engagement with Polymarket odds to gauge real sentiment.
- Content Discovery: Surface the most-engaged posts and videos on a subject.
- Competitive Intelligence: Track recent discussion of a product or company across communities.
- Briefing Generation: Produce a single grounded summary for a question instead of manual searching.