Trezo, a free buy-sell mobile app for local bargain hunters, has come into a market already filled with dominant players like Carousell, Duriana and Tompang.

The name Trezo is a play on the word "treasure", as in the saying "one man's trash is another man's treasure". Created by Singapore Press Holdings' digital division, this four-month-old app connects sellers with buyers via free listings.

At first look, Trezo has functions similar to its rivals. For instance, you can keep track of sellers you like by following them, and there is also a review system to rate both buyers and sellers.

However, it has a few features which set it apart.

One feature is a suggested items function, which highlights interesting listings shoppers may have missed. It collates all suggested items on a single page, and can be accessed by tapping the "View listings" button on the main page. This feature, animated by exclamation words like "Magic", "OMG!" or "Trezo it!", is a handy one. The list is curated by Trezo for now, but will be based on the app users' profile and habits next year.

I like its purple and yellow themed interface, which is simple to navigate. The neatly organised home page divides items into 11 categories, including Men's Fashion, Kids and Home.

Searching for a listing is easy. As you type, the form automatically suggests names of existing listings. The results can be sorted by price, relevancy, popularity and publication date.

If an item catches your fancy, a prominent "Chat to Buy" button is all it takes to contact the seller. This opens up a messaging window, in which you can interact with the seller directly.

Posting an item for sale is a breeze. Creating a listing took me all of two minutes to fill up the six boxes. After filling up information about the item, there is an option to immediately share it to the online listings portal ST Classifieds.

I like this cross-platform feature, as it is an easy way to draw more eyeballs to a post.

Marketplace apps live and die by two things - interface and user base. As an app, Trezo holds its own. In terms of user base, it is behind the more established apps.

To date, the app has around 50,000 downloads across both Android and iOS platforms.

This relatively small user base translates to fewer listings as well. A search for "Tsum Tsum", a popular Disney mobile game, threw up 20 matches on Trezo. On Carousell, which was launched in 2012, hundreds of products popped up.