Outcomes
Real clients, in their own numbers.
Every figure on this page comes from a published story you can read, and none of them are rounded up.
Case studies with their numbers
JSX JSX moves off Xamarin to a Flutter app it owns
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Blade Blade’s luxury travel app, rebuilt in Flutter
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Universal Destinations & Experiences Theme park apps for web and mobile, one codebase
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Trackhouse Racing A NASCAR VIP experience that runs without the cloud
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Divine Divine: from vibe-coded to production-ready
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Google Flutter News Toolkit: 80% less time to launch
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Betterment Betterment: two native codebases into one
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Dow Jones Dow Jones cuts development cost 50% with Flutter
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Hamilton The first commercial Flutter app outside Google
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Nav Nav doubles user growth with Flutter
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Berkheimer Berkheimer’s tax e-filing app doubles its users
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Slickdeals Slickdeals doubles release velocity with Flutter
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The New York Times NYT’s KENKEN, the first commercial Flutter web app
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Hespress Hespress launches its English news app in Flutter
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GlobalComix GlobalComix: unlimited comics on every screen
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Deaf Bible The Bible in multiple sign languages
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V1 Sports V1 Sports doubles revenue with Flutter
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Valkyrie Race car performance, optimized with AI
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Scooters Coffee Two native apps into one, with zero downtime
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In their words.
Verbatim from published case studies
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“The VGV team created an unprecedented experience for Hamilton fans and has been a trusted partner since 2017. There’s no better team to help us give our fans incredible ways to connect with the show.”
CEO, Marathon Digital & Hamilton Marketing · Hamilton Mike Karns -
“Even with a talented team, converting two large, legacy codebases into a single codebase using an unfamiliar technology was a challenging proposition. Working with VGV gave us the added confidence we needed to evaluate Flutter, figure out that we love it, and commit to migrating our entire app.”
VP Architecture · Betterment Sam Moore -
“There’s a night and day difference between being consulted and working with true experts. VGV delivers a quality product and improves the process and people around them.”
Senior Lead Software Engineer · Universal Destinations & Experiences Calvin Goodman -
“They integrated Claude into the workflow in a way that actually improved velocity and quality at the same time, and got us to something stable enough to ship without losing momentum.”
Founder & CEO · Divine Rabble (Evan Henshaw-Plath) -
“The Very Good Ventures team is just so organized. I just have a lot of confidence in them. When they take on a project, I know we will get good results.”
Senior Product Manager · Google Zoey Fan
Hamilton launched the first commercial Flutter app outside Google, and it’s still running.
Built in three months on pre-alpha Flutter in 2017. Hamilton is still a client.
Read the story- 2017 First large-scale commercial Flutter app outside Google
- 3.5M+ App installs
- 100M+ Lottery entries processed
- 500K+ Monthly active users at peak
Betterment moved to one codebase one flow at a time, starting with account creation.
An add-to-app pilot inside the native app, then a phased migration of the rest.
Read the story- 775K+ Accounts on one codebase
- $32B Assets under management on the consolidated codebase, as of March 2023
- 20+ Flutter developers trained to ship it themselves
- 1 week From minimal Flutter to production features
Scooter’s Coffee moved two revenue-critical apps to Flutter in half the estimated time.
Swift and Kotlin apps carrying hundreds of millions a year, rebuilt with a multi-agent AI pipeline and zero downtime.
Read the story- 0 Downtime
- 3–4 mo Delivered, against a 6–8 month estimate
- 100% Feature parity
Built with AI, owned by people.
- Divine
Divine went from a fast prototype to a production-ready release in 90 days.
- Engagement to production-ready release
- 90 days
- Issues prioritized and resolved
- 500+
- Trackhouse Racing
Trackhouse’s race-day pipeline now runs during the race instead of 16 to 24 hours after it.
- Per tick, down from 200–400 ms
- 0.04–0.08 ms
- Messages in a 3.5-hour race, zero restarts
- 227M+
- Betterment
Betterment’s GraphQL code generator was rebuilt for Dart 3 with Claude Code.
- Per ticket, down from 2–4 days
- 2–4 hours
- For six epics estimated at six
- 3 months
The first GenUI case studies.
Two published stories, plus the benchmark data and the live demo anyone can inspect.
- Global cruise line
A global cruise line turned a text assistant into a visual concierge that moves guests closer to booking.
- Booking conversion, driven by agentic search
- 1.00% → 1.08%
- Estimated ticketing revenue from that lift
- $536M
- Coign
Coign turned its quarterly charity vote into a personal way for cardholders to explore causes, vote, and share their impact.
- To a working demo
- 3 weeks
- Pain points consolidated
- 91
Things we got to be part of.
One measured result per engagement, client named
Drag a tile onto another to swap them
- 80% Less time for publishers to launch Flutter News Toolkit The open-source toolkit built with Google. The first publisher had an MVP in six weeks.
- 50% Lower development cost Dow Jones MarketWatch’s game, on iOS and Android in three months.
- 2x Revenue year over year V1 Sports Six native apps moved to one Flutter codebase.
- 2x Registrations and monthly users Nav A null-safety migration, a new state management approach, and a two-week release cadence.
- 2x Release velocity Slickdeals Native apps ported to Flutter feature by feature, with one team across both companies.
- 2x User growth year over year Berkheimer Tax e-filing for Pennsylvania’s largest tax administrator.
- 48 hours To a working prototype The New York Times KENKEN, the first commercial Flutter web app, on six platforms from one codebase.
- 8 weeks To Blade’s first client-facing app Blade Redesigned and rebuilt in Flutter.
- 6 weeks To launch a news app Hespress The first publisher on the Flutter News Toolkit.
- 100% Test coverage JSX Off a deprecated Xamarin app and onto a Flutter app JSX owns.
- 100% Code reusable across desktop and mobile Flutter Slides The first major Flutter macOS app, built for Google.
On the record.
External, not self-reported
- 5.7M+ pub.dev downloads a month. Source: pub.dev
- Recommended on flutter.dev’s consultants directory. Source: Google · flutter.dev/consultants
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very_good_analysisand Very Good Engineering cited in Google’s Flutter architecture recommendations. Source: docs.flutter.dev - Dart Frog donated to the Flutter community. Source: Open source · Dart Frog
- 4,500+ GitHub stars. Source: GitHub
- A demo built with Universal Destinations & Experiences at the VGV booth, Google Cloud Next 2025. Source: VGV blog
- Flutter infotainment in production with Toyota, and a member of Automotive Grade Linux since 2026. Source: VGV blog
Before you forward it.
What people ask about the numbers before they send the page on.
01 Where do these numbers come from?
From each client’s published story. Every figure on this page is on it, and every client here links to theirs.
02 Do we have to move the whole app at once?
No. Betterment started with an add-to-app pilot on account creation, then migrated the rest in phases.
03 Will our own engineers be able to run it afterwards?
Betterment’s did. We trained 20+ of their Flutter developers to ship it themselves.
04 Can a migration run without taking the app down?
Scooter’s Coffee moved revenue-critical Swift and Kotlin apps to Flutter with zero downtime and full feature parity. It took 3 to 4 months against a 6 to 8 month estimate.
05 How fast can a prototype reach production?
Divine went from a fast prototype to a production-ready release in 90 days, with a Claude AI-enabled workflow.
06 Do these apps hold up years after launch?
Hamilton’s app, the first commercial Flutter app outside Google, has run on one Flutter codebase since 2017, across 3.5M+ installs.
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