Apps Like Collatz Explorer for iPhone and iPad
Ranked alternatives
Showing 101–120 of 1,000 ranked alternatives.


737 NG FMS Tutorial
Wayforward Technology, LLC
Learn pre-flight sequences and flight holds
Learn pre-flight procedures for a Hawaii to Los Angeles flight using a full-featured emulator. Practice holds and alternates rarely used in standard training. Simulate cockpit operations and review detailed flight sequences step by step.

Ballet Class
Andrea Piermattei
Piano music for ballet lessons.
The app provides piano music for ballet exercises. Users select piano pieces composed by professional pianists, ordered by the traditional sequence of ballet class exercises.

PlayClock3D
Akiyo Imanaka
Turn clock hands, tap to listen, switch
Learn to tell time by interacting with a 3D clock. Rotate clock hands and tap a crab to display and hear the time. Switch between Japanese and English audio using a national flag. Move a character to different locations and change the weather.

Arpeggios on Bass
Dmitrij Pavlov
Learn bass arpeggios with detailed guidance.
The app contains 360 bass arpeggios with inversions and transposition options. It provides fingering, stroke sequences, and right-hand fingerings for each arpeggio.

Counting Train
Mikhail Magurean
Trace numbers, match sequences, count shapes
Learn numbers and through interactive activities. Trace numbers up to 100, match numbers to sequences, and count geometric shapes. Provide feedback on answers and progress.


A.L.E.X.
Carmine T. Guida, Inc.
Program a robot through puzzle levels.
The app is a puzzle game where users program a robot with commands to complete levels. It helps users think and plan logically, suitable for ages six and up.



MALLETS VOICE LITE
Ars Et Media Srl
Practice harmony and voicings with exercises
Learn harmony and voicings with interactive lessons and a library of chords and voicings. Use the Coach to visualize mallet positions. Create and export MIDI sequences. Play chords on vibraphone or keyboard instruments.


CQDX 59
koji kamogawa
Practice QSOs with realistic calls and signals
Simulate amateur radio QSOs with CQ calls and 59 reports. Exchange phonetic call signs with varying signal levels and tone. Adjust own call sign and monitor TX/RX status. Include pseudo signal meter for realistic feedback.

Times Tables Multiplication IQ
HONETI Filip Serewa
Learn and division facts adaptively
Adjusts difficulty based on child's skill level. Focuses on challenging operations. Tracks progress with visual feedback. Uses intelligent repetition for practice. Allows customization of learning intensity.



Grammar Basics and Advanced
Prachi Pimpalkhare
Comprehensive English grammar study material provided.
The app provides English grammar study material covering a wide range of topics. Users can suggest additional topics for future upgrades via email.


N'Back 10
Yasuyoshi Ota
Improve memory with N'Back training.
The app offers N'Back training to improve sensory and working memory. It includes multiple modes and tasks to challenge cognitive abilities.

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