Maintaining Two Native Apps and Keeping iOS and Android in Parity
One senior developer who keeps both apps current and their features aligned.
I take over maintenance and ongoing work on your native iOS and Android apps, holding feature parity while respecting each platform's conventions. Day rate: €500.
Vendredi App · Repair order
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Drop-off
Your day, 9:00
Ready
19:00
You collect
The fix running on your phone, and the change in your source code.
Remote day rate
€500excl. tax
I have followed both the iOS and Android release cycles and their breaking changes since 2008, so I plan for OS version jumps ahead of time instead of scrambling when they ship.
You collect
- Ongoing upkeep of both native apps, with bug fixes and changes shipped per platform on a coordinated release schedule.
- A feature parity plan that keeps either iOS or Android from falling permanently behind the other.
- Updates for each new iOS and Android version, covering deprecated APIs and new store requirements.
- A developer QA pass on each platform before release, run on real devices rather than the simulator.
Repair order
Two native apps mean roughly double the work
Maintaining an iOS app in Swift and an Android app in Kotlin means two codebases, two release queues, and two QA cycles. Every feature you add has to land on both sides, and in practice one platform usually ends up trailing the other. That gap creates behavior differences that users and your support inbox notice fast, and the longer it sits, the more expensive it gets to close.
Parity without forcing the platforms to match pixel for pixel
Keeping parity does not mean copying one app onto the other. iOS and Android have their own navigation patterns, components, and user expectations. I keep the same features and the same product on both sides while respecting what makes each platform feel native to its users. That is what stops an app from feeling foreign on Android or out of place on iOS.
OS version jumps arrive every year
Apple and Google each ship one major release a year, with deprecated APIs, new privacy requirements, and occasional changes to default behavior. Without maintenance, an app eventually breaks or gets an update rejected. I handle these jumps early, testing against the betas when it makes sense, so you avoid emergency fixes in September when the new OS lands on your users' phones.
A maintenance cost you can actually budget
Annual maintenance for an app commonly runs around 15 to 20 percent of the initial build cost, depending on scope and how fast the product evolves. With a fixed day rate and a single point of contact, that budget stays legible. You pay for identified days of work, not an opaque support retainer, and you can see what a given release will take before it starts.
Frequently asked questions
At my day rate of €500, against real days of work. We can set up reserved days per month or work on demand, depending on how active your roadmap is.
Yes, that is the common case for maintenance. I take time to understand the existing code before I change anything, and I document what needs documenting so the work stays healthy going forward.
Yes. Some clients keep a team on one platform and hand me the other, and some hand me both. Either arrangement works, and I coordinate parity at the boundary with your team.
I check behavior on the new version, replace deprecated APIs, and adapt to new store requirements before any of it blocks your updates. When it is worth it, I test against the developer betas ahead of the public release.
I run a developer QA pass on real devices before each release. For broader test coverage I am happy to work alongside your team or a dedicated tester, but I do not ship without checking the build on hardware first.
I track features on both sides to keep the gap small. Perfect parity at every moment is rare in practice, but the goal is concrete: no platform stays behind for long, and new work lands on both within a tight window.
Your next ticket
The next free day is on the calendar. Start with a free call if you want to talk it through first.
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