Apps Like CheckBoostAudio for iPhone and iPad
Ranked alternatives
Showing 141–160 of 1,000 ranked alternatives.


Guitar Tuner: Chords & Tabs
kadir altintop
Tune guitars and practice
Tune guitars with precise pitch detection and adjustable sensitivity. Learn and scales with interactive lessons and progress tracking. Practice with metronome, loop recorder, and playback features.

Simple Anki
Astemir Boziev
Review flashcards and track progress
Create and organize flashcards for study sessions. Review cards using spaced repetition to improve retention. Adjust difficulty based on performance. Track progress over time. Export cards to other decks. Share decks with others.





Seyo: Speak Korean Confidently
G9
Learn through real dialogues and roleplay
Learn through real-life conversations and cultural roleplay. Practice speaking with instant AI feedback. Engage in interactive lessons and realistic dialogues. Improve listening and speaking skills through immersive, structured learning.


AB Player
Catalystwo Limited
Repeat difficult audio segments easily.
The app allows users to set playback areas for repeated listening of difficult audio segments. Users can save clips for later listening or share them via email, Twitter, or Facebook.



bismark bs-spectrum
bismark LLC
Real-time audio spectrum analyzer with FFT.
The app analyzes audio input in real-time using FFT. It displays the frequency spectrum with options for graph scale, FFT window, decay time, and amplitude offset.

6000 TOEFL Vocabulary
Thanh Vu Truong
Build English vocabulary for TOEFL preparation.
The app provides structured packs and daily lessons to build English vocabulary. It includes pronunciation, review tools, and smart quiz modes for studying 6000 TOEFL vocabulary words.


WFMU Archive Bunker
Muddlegeist Inc.
Browse archived shows, play episodes, download
Browse archived shows from 2000 onward. Scroll through episode listings, play audio, and have next episodes start automatically. Download episodes for offline use. Track playback progress and mark shows as listened to.


The Summit Radio
Friends of 91.3
Listen to SummitFM and The 330
The app allows users to listen to live streams from The SummitFM and The 330. Users can pause and rewind live audio, view integrated program schedules, and bookmark content.


How we rank alternatives
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