Most parental control app reviews assume one household, one set of parents, one shared login. Co-parenting changes the calculation, because both parents usually want their own visibility, not just a report the other parent forwards along.
Qustodio
Qustodio tends to work well for co-parents because its dashboard is built around per-device and per-child reporting that either parent can check independently. It covers screen time limits, content filtering, and app-level controls, and it works across both Android and iOS, which matters if each house uses a different phone ecosystem.
Bark
Bark leans more toward monitoring content — texts, social apps, and concerning language or images — and sending alerts, rather than being a screen-time-limit tool first. For co-parents, its strength is that both parents can be set up to receive the same alerts, so a concerning message doesn't only get seen in one house.
Which one fits two households better
If the priority is enforcing agreed-upon time limits consistently across both homes, Qustodio's shared reporting tends to fit that job more directly. If the priority is safety monitoring — knowing both parents see the same red flags — Bark is built more specifically for that. Some co-parents end up using both, since they solve different problems.
Either way, the app is only enforcing a rule — it doesn't replace having both households agree on what the rule actually is first.