Skip to content
DevSolid

The company behind Best City Places

Systems are judged when conditions get bad.

DevSolid is the company that designs and publishes Best City Places, the city companion that works even offline. It builds on more than twenty years of architecture for regulated systems, where real money moves and every action has to stand up to an audit.

Thierry MalangaFounder and president of DevSolid

Conditions

Illustration

Go on, make them worse.

Verdict

All clear. Calm conditions prove nothing.

Gaming platform

LoadNominal
Transactions
committed
Capacity
headroom available
Audit trail
recording

Best City Places

Map & data
live from the network

A note from the founder

Why I work this way.

I have spent more than twenty years in systems where an outage is counted in real money and every action has to be explained to a regulator. You learn quickly there that software is not judged on demo day, but on the day things get complicated.

That is the standard DevSolid brings to its clients, and the one we hold ourselves to with Best City Places: a city app that has to keep working where you actually need it — out in the street, with no signal.

I founded DevSolid to build that way, for the long run.

Thierry MalangaFounder and president of DevSolid

The company at a glance

Company
DevSolid, founded in January 2025
Leadership
Thierry Malanga, founder
Product
Best City Places
Background
Regulated systems, for more than 20 years
Member of
La French Tech Côte d'Azur — Région Sud

We share what we build, as we build it.

Our product · Best City Places

The best of every city, at the right time.

Exploring a city is still harder than it should be. Too many apps. Too much fragmentation. And very little that still works once you are actually out there — no signal, an unfamiliar language, no time to research.

Best City Places is one app that holds up all the way through, from the first idea of a trip to the moment you are standing in the street.

A selection, not a directory — and no recommendation is for sale.

Available
Nice
Languages
12
Android app
Coming soon

Four things we refuse to compromise on

  • No service — still working

    Offline

    A complete interactive map that keeps working with no network — transit, walking routes, tap any place.

    • Transit
    • Walking routes
    • Every place
  • 12languages

    Curation

    Places, neighbourhoods and local food selected and verified city by city, in 12 languages. Not scraped in bulk.

    • Places
    • Neighbourhoods
    • Local food
  • Right place, right moment

    Context

    Being open is not the same as being worth your time. The weather, the hour, the season, how long you have, what makes sense right after what you have just done.

    • Weather
    • Time of day
    • Season
    • Time you have
  • Immersion

    Narrated audio guides, stories, 360° views — a place you can experience before you leave, and truly understand once you are standing in it.

    • Audio guides
    • Stories
    • 360° views
Tram crossing Place Masséna in Nice
Place Masséna

A city is not only a destination. It is a territory with its own goals.

Spreading visitor flows, extending the season, bringing value back to the villages behind the coast. Best City Places is built for the traveller first — and that is exactly what makes it worth something to the people who run these places.

Designed for

  • Tourism boards & cities
  • Hotels
  • Content creators
  • Museums & cultural sites
  • Local businesses
Talk about your destination

Engineering

Solid software does not depend on the memory of whoever wrote it.

Best City Places is built the way regulated systems are: tested, documented, and able to be picked up, audited and extended.

years of regulated systems
20+
automated tests
≈ 30,000
languages
12

What Best City Places demanded of us

  • Offline by design

    Once a city is downloaded, the map, routes, timetables and recommendations work with no network.

  • Sourced content, in twelve languages

    Every place goes through a production and verification chain before it is published, then goes out in twelve languages.

  • Web today, Android next

    The website is live. The Android app is in preparation, on the same content.

  • Tested and documented

    Around 30,000 automated tests and a documented architecture: the product does not rest on one person's memory.

Expertise · Gaming & casino systems

Twenty years where failure is not an option.

Casino and gaming platforms run on real money, under real regulation, around the clock. For more than 20 years, Thierry Malanga, the founder of DevSolid, has designed and led software systems in that environment, from casino management software to enterprise microservices. DevSolid brings that experience to gaming companies — now with AI built in where it genuinely helps.

  • AI for regulated systems
  • Gaming platform architecture
  • Compliance, security & auditability
  • .NET & the Microsoft stack
  • Modernisation & software quality
  • Product engineering, web & mobile
See the expertise in detail

Recommendations

The people who worked with our founder say it better.

Read them all on LinkedIn
I worked with Thierry for 15 years. […] A technical and spiritual leader, he has consistently supported us, contributing to the team’s technical and interpersonal growth.
Rémi C.Colleague for 15 years
We were always able to talk openly, find solutions and became real friends. […] He is not one for quick fixes as he wants his products to be high quality, robust and well tested.
Avgustin T.Reported to Thierry
Working with Thierry for more than a decade on several enterprise and micro service solutions for Casino system, he is an exceptional technologist with an enthusiastic approach and unique ability to practically apply concepts and deliver results.
Parameswaran P.Worked together for over a decade
I’m grateful for everything he has taught me, both technically and personally. I highly recommend that every company have someone like him.
Mathias D.Quality manager
What I appreciate most about Thierry is his passion for exploring the latest technologies. Our shared enthusiasm for innovation made our collaboration not only productive but also enjoyable.
Nagamanickam M.
Thierry is a passionate and curious developer who doesn’t shy away from any challenge to keep moving forward. […] As a bonus, he is a very pleasant colleague.
Christophe B.Colleague, casino management software

Excerpts from recommendations published on LinkedIn.

Contact

Conditions getting tough? Let's talk.

One address for everything. Tell us what you are building and what is making it hard.

contact@devsolid.comLinkedIn