Apps Like Ref Tools for iPhone and iPad
Access , guides, and support on
Access HVACR for job support. Calculate refrigerant pressures and charge weights. View system diagrams and service guides. Track equipment specifications and maintenance schedules. Share resources and access technical support.
Ref Tools screenshots
Ranked alternatives
Showing 321–340 of 1,000 ranked alternatives.



TuneBro
Callaloo Records LLC
Tune instruments with precision and timing
Allows users to tune instruments with a chromatic tuner that detects pitch quickly and tracks low notes. It displays LED and cent readings for precise tuning. Users can set reference tones for ear training.



Speak Chinese 101
UMATEY LLC
Learn phrases and vocabulary
Learn basic phrases through English-to- translations. Follow native tutors to practice pronunciation. Look up words and phrases for travel or daily use. Save progress and review vocabulary for reinforcement.





Mechanical Engineer
Historycentral.com Inc
Design components, calculate loads, generate reports
Access engineering formulas for calculations, unit conversions, and property lookups. Input variables to solve equations. Store and organize formulas for quick reference. Export results and notes. Sync data across devices.



Proportional Scale
Courtney Parsons
Calculate image dimensions without distortion.
The app calculates new image dimensions while maintaining aspect ratio to prevent distortion. It offers fraction and percent modes, and an image scale tool for precise pixel sizing with a preview.


Silverson Conversion Tools
Silverson Machines Limited
Calculate tank volume with precise parameters
Calculate tank volume for cylindrical or rectangular tanks with flat, dished, spherical, or conical top and bottom styles. Input parameters to determine volume. Share results via email. View product information in a browser.

How we rank alternatives
Apps are ranked by functional similarity, category fit, rating confidence, and popularity.