Redesigning an app is a real investment and comes with risks. Just the design work can cost anywhere from $5,000 for a simple update to $150,000 or more for a complete overhaul, depending on how many screens you have and how much you change. And that’s just for design and development; testing and migration will add even more to the total cost.
Money isn’t the only thing at risk. If a redesign goes badly, you can lose users too. MyFitnessPal found this out in April 2026. When they changed the main food diary screen, users lost features they used every day, and the app’s rating fell from 3.24 to 1.54 stars. A drop like that means lost trust, fewer daily users, and less revenue.
Redesigns can also put user data in danger. Moving accounts, saved settings, and stored content to a new system can lead to lost, duplicated, or corrupted records if you don’t plan carefully.
Not all app redesigns go wrong. When Snapchat redesigned in 2018, there was a lot of public backlash, but U.S. downloads still went up by 41 to 76 percent in the week after launch, partly because people were curious about the changes. The key difference between a redesign that works and one that fails is usually good planning, testing, and communication.
This guide will show you, step by step, how to redesign your app so you can upgrade it without losing your users or their data.
1. Start With Data, Not Opinions
Redesigning an app always carries some risk. If you change too much, loyal users might get confused. If you change too little, the app can still feel outdated. Many teams focus on new colors and layouts but forget about the people who use the app every day.
Before you change a single screen, look at how people actually use your app.
Pull your analytics and check:
- Which features get used the most
- Where users drop off or leave the app
- Which screens cause the most support tickets
This data shows what your users care about most. It also helps you avoid removing features that might seem minor but are actually important daily habits for many people.
Reach out to your active users directly. You can send a short survey or set up some interviews. Ask them what they like, what frustrates them, and what they would miss if it were gone. Real feedback from real users is always better than guessing.
2. Set Clear Goals for the Redesign
A redesign should have a clear reason, not just because “it looks old.”
Write down the exact problem you want to solve. Maybe checkout takes too many steps, new users quit during setup, or the app feels crowded on small screens.
Once you know the problem, set goals you can measure:
- Increase user retention by a set percentage
- Reduce steps in a key task
- Lower support tickets tied to confusion
Make two lists for your goals. One should include fixes for real problems. The other can include visual updates that are nice to have but not urgent. Spend most of your time and budget on the first list.
3. Map the Current User Journey
Before you change anything, map out how users move through your app right now. Write down each screen, button, and the steps users take to finish a task.
This step shows you two things:
- Where users struggle and need a better path
- Where the current design already works well
Keep the parts of your app that already work well. If users go straight to a familiar dashboard every day, don’t hide it under new menus. Keep the paths people use most, and focus on fixing the ones that cause problems.
4. Design Changes Users Can Adjust To
People get used to apps quickly. If you change too much at once, users can feel lost, even if the new design is actually better.
A few ways to ease the transition:
- Keep your main navigation in a familiar spot, even if you update the visual style
- Reuse icons and labels your users already recognize
- Roll out big visual changes in stages instead of all at once
Making small, steady updates helps users adjust without feeling like the app has completely changed.
5. Test With Real Users Before Launch
Don’t launch a redesign based only on your team’s opinions. Test it with both long-time and new users. See how each group handles common tasks. Long-time users can show if old habits clash with new layouts, while new users can tell if the app is easy to use without any background.
A/B testing works well for high-traffic screens like your home screen or checkout flow. Show half your users the new version and half the old version, then compare results like completion rate and time on task.
Beta groups are another good option. Offer the redesign to a small percentage of users first and collect feedback before a full rollout.
6. Roll Out in Phases
A full switch on launch day is risky. Instead, consider a phased rollout:
- Release the redesign to a small user group first
- Expand slowly as you confirm the changes work well
- Offer a toggle so users can switch back to the old version during the transition period
Rolling out changes in phases helps limit problems if something goes wrong. It also gives your support team time to answer questions without being overwhelmed.
In each phase, keep a close eye on churn rate, app store reviews, and support ticket numbers. If you see a sudden increase in any of these, act quickly to fix the issue.
7. Communicate the Change Clearly
Users don’t like surprises, especially in apps they use every day for work or personal tasks. Let them know about changes before they happen.
A simple plan works well:
- Send an in-app message or email a few days before launch
- Explain what changed and why, using plain language
- Include a short walkthrough or a few screenshots showing the new layout
Be direct in your communication. Avoid marketing talk. Users just want to know what changed and how to find what they need, not a sales pitch.
8. Support Users After Launch
Your job isn’t done at launch. The first few weeks after the redesign are especially important.
- Add short tooltips or a brief tour for the new layout
- Brief your support team on common questions before they happen
- Watch reviews and uninstall rates daily during this period
Respond quickly to confusion or complaints. A fast fix or a helpful reply can turn a frustrated user into a loyal one. If you ignore early feedback, you risk losing users who may never return.
Final Words
A redesign isn’t just about design. It’s also about money and trust. Budgets can range from a few thousand dollars to over a hundred thousand dollars, and costs can rise quickly if user data is lost or important features are removed without warning.
The MyFitnessPal example shows how quickly a rating and a user base can drop after a redesign removes something people relied on every day. The Snapchat example shows the opposite is possible too, but only because the brand had enough loyalty and attention to survive the backlash. Most apps don’t have that safety net.
Protect your users by testing early, rolling out changes in phases, and backing up data before making any updates. Keep what already works in your app, and only change what doesn’t. This approach will save you from extra support tickets, lost users, and future problems.
The goal is simple: give your users a better app, not a completely new one they have to relearn.
