Apps like DualSim Data Manager

Here are some great alternatives to DualSim Data Manager by TheMonster :
FlexiRoam: eSIM & Data Plans
FlexiRoam: eSIM & Data Plans
★3.7
Timely Mobile Network Refresh
Timely Mobile Network Refresh
★4.0
AIRSIM
AIRSIM
★3.4
Mobile Data Widget
Mobile Data Widget
★3.8
SIM Number Finder & Phone Info
SIM Number Finder & Phone Info
★4.2
SIM Card Info
SIM Card Info
★3.9
Network Info & Sim Details
Network Info & Sim Details
★3.9
Dual Sim / Multi Sim Selector
Dual Sim / Multi Sim Selector
★4.1
Roamingo
Roamingo
★4.7
Sim Cell Info
Sim Cell Info
★4.3
Drimsim — mobile data abroad
Drimsim — mobile data abroad
★3.3
SIM Unlock for HTC phones
SIM Unlock for HTC phones
★3.7
SIM Card Info (Dual-Sim)
SIM Card Info (Dual-Sim)
★4.0
1O1O
1O1O
★4.5
FORCE LTE Only (4G/5G)
FORCE LTE Only (4G/5G)
★4.1
Truphone SIM Data Settings
Truphone SIM Data Settings
★4.1