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Log app exit reasons and memory use - #788
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MetricKit exit counts and crash diagnostics are written to the log when iOS delivers them. The app also logs when it is about to terminate, and the background log line includes the memory footprint and the memory left before the limit.
marionbarker
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Oct 23, 2026
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Approve by test. Did a quit, then restart and shared log, see
[14:51:10] [General] App will terminate (memoryFootprint=43 MB, memoryAvailable=2054 MB)
in shared log.
Assuming the rest works as expected.
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Some users still see LoopFollow die shortly after going to the background with Silent Tune running, and the log can't tell whether iOS killed it for memory, it crashed, or it was swiped away. This logs MetricKit exit counts and crash diagnostics when iOS delivers them (at most once a day), adds a log line in applicationWillTerminate, and adds the memory footprint and remaining memory to the "App moved to background" line.