Apps Like NSO for iPhone and iPad
NSO screenshots
Ranked alternatives
Showing 21–40 of 1,000 ranked alternatives.
Citizen Now: US Citizenship
Liontude LLC
Study civics questions and prepare for
Study for the US Test with authentic questions and audio. Practice both 100-question and 128-question formats. Review official USCIS materials and track progress. Access study guides and test simulations. Prepare for the reading and writing sections.
Signal Flags International
Gigs, Inc.
Recognize and interpret maritime flags.
The app provides images and usage descriptions for all 40 international code flags. It includes a quiz for memorization and the complete International Code of Signals document for reference.
ASVAB Practice Test By ABC
Thanh Hung
Tests
Exam questions organized by topic and subtopic. Review explanations for correct answers. Track progress over time. Set study goals and receive feedback on performance. Access updated content reflecting current standards.
CPALMS Standards Viewer
CPALMS, Inc.
Browse by subject and grade
Access Florida by subject, grade, domain, or cluster. Search for specific topics across grades and subjects. View related access points and links to vetted instructional resources. Stay updated with current standard information.
ETERNAL LITHIUM
Nanchang Yepai Technology Co., Ltd.
Monitor battery health and control power systems
Monitor battery health with real-time state of charge predictions and adaptive forecasting. Simulate runtime under various load conditions. Control infrastructure for safety and performance.
How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.