GeoFormulas by ChatStick vs Articulation Lab

Take the stress out of geometry! GeoFormulas is your all-in-one learning and calculation app designed for students, teachers, and curious minds. With interactive diagrams, clear step-by-step explanations, and instant calculators, you’ll never be stuck on a formula again. Whether you’re studying for class, teaching in the classroom, or simply brushing up on your math skills, GeoFormulas makes geometry engaging and easy to understand. Why you’ll love GeoFormulas: • Huge Formula Library – Explore 50+ 2D & 3D shapes with area, perimeter, surface area, and volume formulas.

 • Interactive Diagrams – Move sliders, change dimensions, and watch shapes transform in real time.

 • Instant Calculator – Enter values and get results immediately with unit conversions built in.

 • Learn While You Calculate – Read simple explanations and discover how each formula works.

 • Track Your Work – Save favorites, view history, and share results with friends or classmates.

 • Beautiful Themes – Customize the look of the app with fun, colorful designs.
 
 Go Premium and Unlock All Features: • Access to all 50+ shapes and formulas

 • Step-by-step derivations and deeper explanations

 • Unlimited history and favorites

 • Premium themes and customization

 • Ad-free experience

 With GeoFormulas, geometry becomes clear, interactive, and enjoyable. Download today and make geometry simple!

Articulation Lab was developed by speech-language therapist Gülce Tüzüner to help children recognize speech sounds and practice them through playful activities. Certified and rated 5/5 by the Educational App Store. Children can practice at the sound, syllable, word, phrase, sentence, and reading levels. Activities are organized around 10 target sounds: R, S, L, SH, CH, TH, Z, J, K, and G. Articulation Lab includes: • 10 speech sound targets • 9 interactive game modes • 700+ word and picture-supported practice items with audio • Sound warm-ups, word, phrase, and sentence practice • Minimal pair and listening activities • Voice recording so children can hear their own practice • Reading lists and reading passages • Customizable word lists for practice activities • Daily goals, progress tracking, and rewards • Support for multiple child profiles The free version includes access to S sound activities, previews of the first three items in eligible activities, one child profile, and up to 15 practice rounds per day. Articulation Lab Plus unlocks all target sounds, games, practice activities, reading content, and support for multiple profiles. Articulation Lab is designed to support speech sound practice. It does not diagnose or treat speech disorders and does not replace evaluation or therapy by a qualified speech-language professional. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://articulationlab.app/privacy