A caregiver app that stops sending alerts without an error message has almost always been put to sleep by the phone's own battery manager, not uninstalled, crashed, or damaged by an update. Android ships with at least two separate systems for killing background apps to save power. Manufacturers layer a third one on top, under their own name and menu, and any one of the three can block a monitoring app while the icon and the notification permission still look untouched.
The fix is almost never in the app itself.
It's in three settings, checked in order, on the specific phone brand involved.
Rule out the system-wide culprit first
Before touching any manufacturer's battery menu, check a setting that exists on every Android phone regardless of brand: Pause app activity if unused. Google's own support page describes it as a feature that automatically deletes an unopened app's temporary files and revokes its permissions. It also stops the app's background activity and blocks its notifications, and it sits under Settings, then the app's own page, then Unused apps. It runs independently of whatever the phone's battery-optimization menu says, which is why turning off battery optimization for an app can still leave it disabled: the two systems don't check each other. Open the caregiver app's own settings page and confirm this toggle is off first.
Samsung Galaxy: Background usage limits
On a Galaxy phone, the relevant menu is Settings, then Battery and device care, then Battery, then Background usage limits. Samsung's own support page describes three tiers there: sleeping apps, deep sleeping apps (which stop running in the background entirely and only wake when opened), and a "never sleeping apps" list for apps that should keep running no matter what. A caregiver app that has stopped sending alerts has usually been moved into one of the first two lists on its own; adding it to "never sleeping apps" is the fix. Samsung's documentation is written against Android 13, and menu names shift with the OS version, so the wording on a newer or older Galaxy phone may differ slightly.
Google Pixel: Adaptive Battery and per-app battery usage
Pixel phones route through two settings rather than one. The phone-wide toggle is at Settings, then Battery, then Battery Saver, then Adaptive Battery, which Google's support page describes as an AI feature that limits background activity for apps it decides you rarely use. The per-app override sits separately at Settings, then Apps, then the specific app, then App battery usage, where the choices are Unrestricted, Optimized, or Restricted; Unrestricted is the one that stops the OS from touching the app at all. Google's own documentation adds that Adaptive Battery can take a few weeks to fully calibrate after a factory reset, which matters if the alerts started failing shortly after setting up a replacement phone rather than an old one.
Motorola: Manage background apps
Motorola's phones use a plainer three-way choice. The path is Settings, then Battery, then Manage background apps, where each app can be set to Smart use, Always allow, or Don't allow. Motorola's own support text describes Smart use as monitoring an app's background behavior and restricting it automatically if usage looks excessive. A caregiver app that only sends a small signal every so often looks, to that algorithm, like it's doing nothing useful.
Always allow is the one to pick instead.
Xiaomi and HyperOS: the same fight, murkier menus
Xiaomi's phones are widely reported to run one of the more aggressive versions of this same pattern, combining a separate Autostart permission with a per-app battery saver level, both under Settings, then Apps, then Manage apps, then the app in question. Xiaomi's own support pages for this were not reachable this session to confirm the current exact wording, and the menu names have shifted between MIUI and HyperOS releases, so treat the path above as a starting point rather than a verified script: look for anything named Autostart or Battery saver on the app's own permissions screen, and set both to the least restrictive option available.
OPPO and ColorOS: Phone Manager and the power-saving modes
OPPO documents its own battery tools through the Phone Manager app rather than through Settings alone. OPPO's own writeup describes an "Optimize" action inside Phone Manager that can disable an app's auto-launch permission and shut down background apps it judges to be using excess power, on top of a separate Power Saving mode under Settings, then Battery, that reduces background activity phone-wide. OPPO's more aggressive Super Power Saving mode goes further, limiting the phone to six apps chosen by the user; a caregiver app left out of that list stops running until Super Power Saving is turned off. Excluding the caregiver app from Phone Manager's optimization and keeping ordinary Power Saving mode off, rather than relying on Super Power Saving, is the combination that tends to hold.
Why Android fights its own caregiver apps
None of this is a bug specific to any one manufacturer. Android's battery model assumes most background activity is waste. That's true for most apps. But a caregiver app's entire job is to sit in the background doing almost nothing most of the time, which is the exact profile the OS is built to catch. Manufacturers add their own layer on top of Google's because their phones are judged by battery-life benchmarks rather than by whether a monitoring app three menus deep kept working, so the incentive runs the wrong way for this use case on every brand.
A monitoring app that relies on a small, infrequent signal, such as a periodic check-in rather than constant activity, tends to be the first thing an OEM's battery algorithm flags. CareBridge's own Android app is built around exactly that kind of signal, checking in every 15 minutes so a phone that goes silent reads as a problem worth a caregiver's attention rather than as nothing happening.
If this cycle has already repeated across two or three phone upgrades, with a new OEM's menu hiding the same three toggles each time, it's worth asking whether a phone-based app is the right tool. A dedicated cellular device that isn't a general-purpose smartphone sidesteps the problem entirely: there's no OS battery manager to fight in the first place. Best Buy Health's Lively Mobile2 pendant, for one, runs on its own cellular connection. The device costs $119.99 plus a Lively service plan starting at $24.99 a month for the Basic tier, with fall detection sold as a $9.99-a-month add-on (verified at shop.lively.com, September 2026). It has to be worn or carried to do any good, which is its own daily-habit problem, but once it's on, no software update can put it back to sleep.
Of the five settings menus above, Samsung's is worth trusting longest. A "never sleeping apps" list is an explicit, named exemption, the kind of setting a user has to deliberately find and remove. OPPO's Super Power Saving mode rests on a shakier assumption, since it can be triggered by low battery alone and will drop a previously exempted app back into its six-app allowlist without any menu visit at all. That reading follows from OPPO's own description of what Super Power Saving does rather than from a guess about OPPO's intentions.
Re-check after every OS update
Every one of these settings can reset. A major Android version upgrade, a manufacturer software update, or in some cases a routine security patch can rebuild the battery menu it lives in and revert an app back to a restricted state, and none of these companies send a notification when that happens.
The reliable habit is a quick check after every update notification, treated as routine rather than a one-time fix: open the app's battery settings and confirm the exemption held. For other ways to keep tabs on an Android-using parent without asking them to change anything, see our rundown of free options.
All third-party product names and trademarks belong to their respective owners. Details verified against official sources on September 22, 2026; check the linked sites for current pricing.
CareBridge is not a medical device and is not a substitute for emergency services. If you believe someone is in immediate danger, call your local emergency number.