| Usatine & Erickson Media LLC | 🍎 | 1 | 5.0★ | Medical |
| Use All Five, Inc. | 🍎 | 1 | — | SHOPPING |
| Used Cars NI Ltd | 🍎 | 1 | 4.3★ | Lifestyle |
| Useeum | 🍎 | 1 | 4.6★ | Education |
| Useful utility and photo design apps ltd | 🍎 | 1 | 4.7★ | Entertainment |
| UserZoom | 🍎 | 1 | 3.0★ | Business |
| Userjoy Technology Co., Ltd. | 🍎 | 1 | 1.0★ | Games |
| Userware | 🍎 | 1 | — | Business |
| Usio, Inc. | 🍎 | 1 | 4.6★ | Finance |
| Usman Bashir | 🍎 | 1 | 1.0★ | Games |
| Usman Jamil | 🍎 | 1 | — | Utilities |
| Usman Miah | 🍎 | 1 | — | Reference |
| Usnoop Limited | 🍎 | 1 | 4.6★ | Finance |
| Ut Sarees | 🍎 | 1 | — | Shopping |
| Utah State University | 🍎 | 1 | 4.7★ | Sports |
| Utah Valley University | 🍎 | 1 | 3.8★ | Education |
| Utaxi LLC | 🍎 | 1 | 4.8★ | Travel |
| Uteach | 🍎 | 1 | 5.0★ | Education |
| Utepils Brewing | 🍎 | 1 | 5.0★ | Food & Drink |
| Utiful Software GmbH | 🍎 | 1 | 4.1★ | Photo & Video |
| UtilSoft LLC | 🍎 | 1 | 5.0★ | Business |
| Utilities Board of the City of Oneonta Alabama | 🍎 | 1 | 2.0★ | Reference |
| Utilities Integrated Private Limited | 🍎 | 1 | — | Utilities |
| Utility Business Media | 🍎 | 1 | — | Business |
| Utility Trailer Manufacturing Company | 🍎 | 1 | — | Business |
| Utility and useful apps for entertainment and productivity | 🍎 | 1 | 4.6★ | Utilities |
| Utilstop LLC | 🍎 | 1 | 5.0★ | Lifestyle |
| Utkan Cakı | 🍎 | 1 | — | Education |
| Utkarsh Small Finance Bank Ltd | 🍎 | 1 | 4.6★ | Finance |
| Utku Yegen | 🍎 | 1 | 5.0★ | Book |
| Utopiapps | 🍎 | 1 | 4.1★ | Finance |
| Utraspeed Inc | 🍎 | 1 | 4.8★ | Lifestyle |
| Utsaah Psychological Services Pvt. Ltd. | 🍎 | 1 | — | Education |
| Uttara Sharma | 🍎 | 1 | 3.3★ | Lifestyle |
| Uveaa Australia Pty Ltd | 🍎 | 1 | — | Finance |
| Uventex | 🍎 | 1 | 3.9★ | Entertainment |
| Uwan Studio | 🍎 | 1 | 4.3★ | Games |
| Uwe Martin | 🍎 | 1 | — | Utilities |
| Uwe Meier | 🍎 | 1 | 3.3★ | Games |
| Uwe Prechtel | 🍎 | 1 | 5.0★ | Travel |
| Uxcel, Inc. | 🍎 | 1 | 4.7★ | Education |
| Uyen Bui | 🍎 | 1 | — | Education |
| Uyen Nguyen Thi | 🍎 | 1 | 3.1★ | Education |
| Uygur Kiran | 🍎 | 1 | 5.0★ | Reference |
| Uzair Jamal | 🍎 | 1 | 4.5★ | Productivity |
| Uzair Nazir | 🍎 | 1 | 4.8★ | Reference |
| Uzelki LLC | 🍎 | 1 | 4.9★ | Education |
| Uzi Yoshia | 🍎 | 1 | — | Lifestyle |
| Uzno Apps | 🍎 | 1 | 4.7★ | Health & Fitness |
| Uzrek Payment Systems Inc | 🍎 | 1 | 4.9★ | Finance |