Our prices are published: €10,000 to €30,000 for a first version on one platform, €30,000 to €60,000 for an iPhone and Android app. Below, what the top fifteen pages on Google France leave out, checked on 12 October 2026.
ScopeOne platform, the core featuresiPhone and Android, accounts, paymentsReal time, integrations, roles
App store accountsApple $99/yr · Google $25
EU commission, in-app purchasesApple 26% · Google 10% + 5%
OTTO is preparing the rangeReviewed by a human, within 24 hCapped quote
Prices published, not hidden
A free, capped quote
A human reply within 24 h
Code assigned in writing
Store costs checked at source
Our prices
Three published tiers, the same on every page.
A range isn't a quote: yours is free, capped, and arrives within 24 hours. But a price that isn't published can't be compared.
First version
€10,000 → €30,000
One platform
The core features
A minimal back-end
6 to 10 weeks
Standard app
€30,000 → €60,000
iPhone and Android, one codebase
Accounts, payments, notifications
Full back-end
8 to 12 weeks
Complex app
€60,000 → €120,000and up
Real time
Multiple integrations
Roles and high volume
6 months and more
Grid published by OTTOPILOTE. Timelines run from the first line of code to launch.
A free, capped quote
A human reply within 24 business hours, on your brief.
Payment per delivered stage
Never a blind deposit.
The code is yours, in writing
Rights assignment written into the contract; code, access and documentation handed over at delivery, once the project is paid.
30 days of fixes included
Then an optional monthly plan, or a handover to your own team.
Timeline by technology, for a standard app
PWA6 to 10 weeks
Hybrid (WebView)6 to 10 weeks
Cross-platform8 to 12 weeks
Native iOS + Android3 to 4 months
Native means building and testing twice: it costs about 30% more than a shared codebase. The full comparison is on our mobile apps page. Compare the approaches
What Google France's top fifteen pages publish, and what they leave out.
We read in full the pages ranking at the top of Google France for “combien coûte une application mobile” and “prix application mobile” (how much does a mobile app cost, mobile app price). Thirteen are published by companies that sell this development. We don’t name them: what matters is what a buyer finds there.
7 / 12
cite no source for their prices
2 / 12
cite an outside source, dated 2015 to 2022
7 / 15
give a maintenance percentage; none sources it
0 / 15
give the app store commissions in force in 2026
Overall ranges published, in euros
€1k€10k€100k€1M
MVP€10k → €30k
Standard€30k → €60k
Complex€60k → €120k +
Page 1€5k → €150k +
Page 2€5k → €250k
Page 3€7k → €500k
Page 4€8k → €150k
Page 5€10k → €50k
Page 6€10k → €200k
Page 7€12k → €80k +
One line per page giving two figures in euros (7 of 15); an arrow when the page says “and up”. The three blue lines are our tiers. Logarithmic scale.
✦Google's AI Overview
“between €3,000 and over €150,000”
That's what it showed on Google France on 12 October 2026 (our translation), citing a single page. That page states this range nowhere: it gives four different ones, from €5,000 to €250,000. And the same URL showed €500 to €20,000 in June 2026, each time on the strength of “50 projects” of its own.
Developer accounts5 pages out of 9 get them wrong or contradict themselves: the Google Play account at “$5”, or “€25 a year”.
Store review timesNone quotes Apple's review figures, or the 14-day closed test Google requires.
NotificationsOne page prices push notifications at €4,500 to €14,000 after launch; the Google service that sends them costs nothing.
Official costs, 2026
What the app stores and services charge, read at the source.
These amounts change: two commissions moved in 2026. Each line links to the official page that states it, read on 12 October 2026. The commissions shown apply to users in the EU and the EEA; rates differ elsewhere.
Maintenance: our benchmark, and what it doesn’t say.
To budget, we count 15 to 20% of the build cost per year: fixes, security updates, keeping up with new iOS and Android versions, small improvements. It’s a benchmark, not a statistic: no public study measures it, and the seven pages in our survey that give a percentage don’t source theirs either.
After our 30 days of included fixes, a monthly plan takes over, or your own team does, and we train it.
Excluding usage-based services€34,500 to €36,000 + $99
Estimator
Your range, in five answers.
The app type gives the range published above; your answers to the five levers place your project within it.
FAQ
The questions we get asked.
Another question? Write to us: a human reply within one business day.
What's the minimum price for a mobile app?
With us, a genuinely developed first version starts at €10,000, on a single platform with a tight scope, in 6 to 10 weeks. Below that, you're looking at a mockup or a no-code prototype, not an app in production.
How much does an iPhone and Android app cost?
€30,000 to €60,000 for a standard cross-platform app (one codebase for both systems), in 8 to 12 weeks. Native, built separately for iOS and Android, costs about 30% more.
How much do the app stores cost?
Apple's Developer Program costs $99 a year, a Google Play account $25 once. If the app sells digital content, Apple takes 26% in the European Union since 1 October 2026 (15% for small developers), and Google 10% plus a 5% billing fee in the EEA since 30 June 2026.
How much does app maintenance cost?
We advise setting aside 15 to 20% of the build cost every year. This benchmark isn't based on any study: it's for planning a budget, not predicting an invoice. The first 30 days of fixes are included in our projects.
How long does it take to publish on the app stores?
Apple reviews at least 50% of submissions in under 24 hours and 90% in under 48 hours. Google announces up to seven days, sometimes longer for some accounts, and requires new personal accounts to run a 14-day closed test with 12 testers before going to production.
Who owns my app's code?
Its author, as long as no assignment is written down: under French law, paying for development doesn't transfer the rights. With us, the assignment is written into the contract, and the source code, access and documentation are handed over at delivery, once the project is paid.
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