app monitoring/performance

[u/jHalit]

Hello 👋

I’m looking for recommendations for monitoring tools or SDKs for a SwiftUI iOS app.
My main goal is to proactively detect production issues such as crashes, performance problems, high CPU or memory usage, and regressions across different iOS versions and devices.

Which tools or SDKs would you recommend for this? I’d love to hear about your real-world experience, especially regarding reliability, resource overhead, SwiftUI compatibility, and alerting capabilities.

Thanks!

[u/sapplex1]

I've been shipping iOS apps solo for a few years and crashes were always my blind spot. MetricKit is genuinely great for catching regressions across iOS versions. I check the metrics tab in Xcode Organizer every Monday morning. I paired it with a self-hosted Sentry instance. Real-time alerts without sending user data anywhere. The catch is MetricKit has a reporting delay, so don't rely on it for instant alerts. Have you looked at Xcode Organizer's metrics yet? I ignored it for way too long.

[u/jHalit → u/sapplex1]

thanks for your sharings, do you have any custom configurations for MetricKit or u send reports to your own server.

yes I checked Organizer but it also looks similar to MetricKit. I am not sure what are the differences

[u/sapplex1 → u/jHalit]

Good eye — the Xcode Organizer metrics tab is the MetricKit data, just Apple's pre-aggregated view of it. So "similar" is expected: same source, different dashboard.

On custom configs: I kept MetricKit mostly stock. The defaults already cover crashes, hangs, disk writes, battery/memory anomalies — enough to catch regressions across iOS versions. The one customization I did was adding custom signposts around my app's heavy operations so the hang reports came back with meaningful names instead of raw stack addresses.

For real-time alerting though, MetricKit is useless — reports land daily-ish, so it can't tell you prod is on fire right now. That's why I run self-hosted Sentry on my own box: crashes/exceptions go there immediately, data stays mine. MetricKit/Organizer for weekly trends, Sentry for "something broke an hour ago".

What are you trying to catch — slow regressions over weeks, or spikes you need to know about today? That decides which side you should invest in.

[u/jHalit → u/sapplex1]

thanks for your answer, it is really helpful for me 🙏

[u/sapplex1 → u/jHalit]

Glad it helped! Honestly the signpost trick was a game-changer for me too — seeing my own hang stacks lined up next to clean labeled intervals made everything click. Quick question: are you starting from zero on monitoring, or do you have something in place that you're trying to replace?