# Undef – AI Trip Planner

> Undef – AI Trip Planner (iPhone/iPad app by Sebastiano Eugenio Cullemi.)

- Source: https://appshunter.io/ios/app/undef-ai-trip-planner/id6761690773 (this page in markdown: same URL + `.md`)
- Developer: [Sebastiano Eugenio Cullemi](https://appshunter.io/developer/1890916606)
- Category: Travel
- Price: Free
- Age rating: 4+
- Requires: iOS 15.1 · 58 MB
- Languages: English, Italian
- Released: 2026-04-24
- Data updated: 2026-05-21
- User reviews in markdown: https://appshunter.io/ios/app/undef-ai-trip-planner/id6761690773/reviews.md

## What is Undef?

Undef is the travel planner that changes the way you plan and live your trips.

Build your itinerary by hand, stop by stop, or let AI generate it for you in seconds, based on your traveler profile, budget and travel style.

PLAN
Build your trip day by day. Add stops, schedules, notes and transport. Everything organized, always with you.                                                       

LET AI HELP YOU
Describe your trip and AI generates a complete itinerary with stops, local highlights and personalized suggestions.

TRACK
Enable automatic tracking: Undef marks stops as visited while you explore, even with your phone in your pocket.                                                   

RELIVE
At the end of your trip, discover your report: stats, expenses, cities visited and your traveler profile that grows with every adventure.                           

SHARE
Create ready-to-share cards: trip cover, day by day, your stats.

Undef is free. Undef Pro unlocks unlimited AI generation, advanced stats and much more.


## Version history (last 1 release)

### 1.0.0 — 2026-04-24

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-21.*