Case study · Solence
We built the MVP. The market answered.
Product-market fit found, and the round followed.
500+
Users at launch
€1.6M
Raised
For founders ready to launch
Launch a (truly) profitable app.
We build your app around the one feature that proves your market, designed to convert, launched on both stores. No $150k engineering team required.
Request a strategy call →
By application. We reply personally.
Built by the team behind
Fitaya
100k+
Users
ViaMichelin
1.2M
Users
Solence
€1.6M
Raised
Beauté Privée
5M
Users
MonCrew
0 → 1
Idea to launched MVP
AbdSanté
Soon
Stats coming
Adencer
Soon
Stats coming
HalalTour
Soon
Stats coming
PregAI
Soon
Stats coming
The problem
90% of apps fail.
Not because the code is bad, but because they're built before they're sold. Budgets burn on features nobody asked for, instead of proving the market first.
What makes us different
We go straight to the core.
The one feature that validates your market. Built for conversion, launched on both stores, grown to revenue. We don't stop at "shipped."
Profitable is just the start.
The framework
6 pillars of a profitable app
Profit isn't one lever. It's six. We build yours with every one in mind, from day one.
01
Product
An app your audience actually wants, solving a real problem they'll pay for.
02
Acquisition
Reaching the right people at scale (ASO, SEO, ads, virality), without chasing them.
03
Conversion
Turning visitors into users, then into payers (onboarding that hooks, a paywall that sells).
04
Retention
Keeping users active and worth more over time. Keeping a user costs far less than winning a new one.
05
Revenue
Earning more per user without acquiring more (pricing, upsell, higher ARPU).
06
Propagation
Every user brings in the next (referrals, sharing, reviews).
How it works
Three steps, one path.
01
Validate
We confirm the market before writing a line of code.
02
Build
Design and develop your MVP, on both stores.
03
Grow
Launch and take it to your first paying users.
We support you until your app makes money.
Request a strategy call →
Proof
From MVP to funded.
★★★★★
"Fast and effective work."
Ianis Couty
CTO, Waynium
Pricing
One build, priced upfront.
Start with Validation, it's deductible from your build.
Validation
$6,000
Validate your idea before you build.
- Project scoping & market analysis
- Clickable prototype
- Landing page with waitlist
MVP Launch
From $25,000
We build your MVP and guide you to launch.
- Strategy, UX/UI, iOS & Android
- ASO & go-to-market
- 0-bug guarantee
- Guidance and advice through launch
Co-pilot
From $35,000
Launch is just the start. We drive growth with you, all the way to your first revenue.
Everything in MVP Launch, plus:
- Up to 6 months of co-piloting, side by side
- We run acquisition, conversion and revenue
- We don't let go until it makes money
Common questions
Before you book.
Start with Validation ($6,000) before the full build, it's deducted from the build.
Validation is $6,000 (deducted from the build). MVP Launch starts at $25,000, and Co-pilot at $35,000 with up to 6 months of co-piloting after launch.
They write code. We deliver a business, and we've done it at scale.
The founder
Nahel Lachgar
Founder of NL Apps. Engineer and product partner.
For 7+ years I've shipped mobile apps at every scale, from global groups like Michelin, SNCF, EDF, Stellantis and Vinci to solo founders and funded startups. Few people have built across that whole range.
I started NL Apps because most founders get handed to juniors, or sold marketing that ignores the product. I've watched too many good apps stall on a weak launch, or leak revenue no one could name.
With NL Apps you don't brief an agency. You get one partner, accountable for the number, from the first wireframe to the first dollar.
Get started
Turn your idea into a revenue-generating app.
We support you until your app makes money. Tell us about your idea, we reply personally within a few days.
Thank you. We have your idea.
We review every project personally and reply within a few days.
By application. A limited number of projects each year.