Duo App Index is a curated app directory and print-style book that showcases Duo-focused and regular iPhone apps, letting readers browse featured listings and jump directly to each maker's website.
What is Duo App Index?
Duo App Index is a curated directory and book for Duo-focused and regular iPhone apps. It organizes apps by time (Today, 7 days, 2 weeks, 30 days, All) and by type (Featured, Productivity, Creative, Finance, Lifestyle, Developer). Each listing includes the app name, founder name, a short use case, an About this app blurb, app type, and the main product surface (iPhone, iPhone + Duo, or Mac). The page currently shows one app, ParleSprint, a speaking-first French app by Thoufeek Baber. The directory is titled Duo App Index: Discover Duo Apps.
Key Features
- Curated app listings — Each app entry shows a logo, app name, founder name, use case, about text, app type, and Built for tag (iPhone, iPhone + Duo, or Mac).
- Time-based browsing — Filter listings by Today, 7 days, 2 weeks, 30 days, or All.
- Category filters — Browse All apps, Featured, Productivity, Creative, Finance, Lifestyle, or Developer.
- Search — A search field lets visitors find apps by name.
- Direct maker links — Every listing includes a direct path to the maker, so users can go deeper on the app's own site.
- Open full book — An Open full book link and Directory tab provide access to the full book view.
- Paid placements — App makers can reserve one edition day with three placement sizes: One spot ($5 for one of four apps on a page), Half page ($10 for two apps sharing the page), or Full page ($20 for the whole page).
- Preview before submission — The submission form auto-fills details from a public site (with AI) and shows exactly what will appear in the book before payment.
Who should use Duo App Index?
- iPhone app makers — list a Duo-focused or regular iPhone app in the book to reach readers looking for new apps.
- App explorers — discover curated iPhone apps with direct links to makers, filtering by time or category.
- Duo device owners — find apps built for iPhone + Duo or Mac.
- Indie founders — build a profile, choose a placement size, and preview the listing before submitting.
What can you do with Duo App Index?
- Discover new iPhone apps: browse featured and category-filtered listings, with each entry linking directly to the app's website.
- List your app in the book: fill out a profile with app logo, name, founder name, use case, about text, app type, and target platform, then choose a paid placement to reserve an edition day.
- Preview your book page: see exactly how your app will appear in the book before submitting and paying.
- Search for specific apps: use the search field to find apps by name across the directory.
Pricing
Duo App Index is free to browse. For app makers, paid placements reserve one edition day: One spot costs $5 (one of four apps on a page), Half page costs $10 (two apps share the page), and Full page costs $20 (your app gets the whole page). The page shows 99 of 100 launch spots remaining.
How does Duo App Index work?
App makers start by entering their website URL; the form can auto-fill profile details with AI from the public site. They then add an app logo, app name, founder name, use case, about text, app type, target platform, receipt email, and an optional founder note. After choosing a placement size and previewing the book page, they submit and pay; the paid placement is reserved for today's edition and publishes after payment is confirmed.
FAQ
What is Duo App Index?
Duo App Index is a curated directory and book for Duo-focused and regular iPhone apps. It lists apps with details like founder name, use case, app type, and target platform, and provides a direct link to each maker's website.
Is Duo App Index free?
Browsing the directory is free. Listing an app requires a paid placement: $5 for a one spot (one of four apps on a page), $10 for a half page, or $20 for a full page. The page currently shows 99 of 100 launch spots remaining.
What apps can be listed?
Duo-focused or regular iPhone apps are welcome. The form supports app types Productivity, Creative, Finance, Lifestyle, and Developer, and target platforms iPhone, iPhone + Duo, and Mac.
How do I submit an app?
Enter your website URL, let the form auto-fill details with AI, add an app logo, and fill in app name, founder name, use case, about text, app type, target platform, receipt email, and an optional founder note. Choose a placement size, preview your page, then submit and pay.
