Comparison

CheckBoostAudio vs SceneFlow

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

CheckBoostAudio

Features
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Take your listening experience to the next level with this simple and intuitive audio player designed for language learners! With powerful features to help you manage tracks for repeated listening and focused practice, it’s your perfect companion for efficient learning. # Key Features - Track Check Feature Mark the parts you couldn’t catch with a simple check. Instantly identify which tracks need more attention for smoother and smarter review. - Waveform Display for Precise Control Visualize your audio with a sleek waveform display! Easily pinpoint the exact moment you want to rewind or fast-forward to—perfect for detailed practice. - Checked Tracks Page Easily access all your checked tracks on the Checked Tracks page! Revisit and focus on the parts you struggled with or the sections you want to master. Designed for language learners, musicians, and anyone who loves music, this player enhances your listening habits, whether for study, practice, or leisure. Download now and start building better listening habits today!

About

SceneFlow

Features
Read full description

SceneFlow is a language-learning app for building Japanese or English skills through short, everyday scenes. Listen, read aloud, and practice shadowing with language you can connect to real life. Instead of novels or news, SceneFlow focuses on familiar moments: getting ready in the morning, commuting, cooking, working, going out, and winding down at night. Learn natural expressions by connecting words with scenes, actions, feelings, and short conversations. LEARN THROUGH EVERYDAY SCENES Choose lessons by topic and difficulty. Each scene is short enough for a few minutes of practice, making it easy to study during small breaks. Compare Japanese and English as you learn expressions you can reuse in similar situations. NORMAL AND SLOW AUDIO Listen to full passages or individual sections at normal or slow speed. Hear the word order and rhythm clearly, then replay each section as often as you need. READ ALOUD AND REVIEW TEXT MATCHES Read the full scene aloud and compare the recognized speech with the lesson text. Mismatched words or phrases are highlighted in red, and a text-match percentage helps you review what was recognized. Please note: the match percentage compares recognized words or characters with the lesson text. It does not acoustically score accent, stress, intonation, or naturalness. PRACTICE WITH SHADOWING Listen to one section and speak immediately after it. Short, repeatable sections help you train listening and speaking together. 1-, 2-, AND 3-MINUTE LONG READS Build speaking stamina with complete everyday passages designed to take about one, two, or three minutes at a natural pace. Start small and gradually practice speaking for longer. PACED READ ALOUD Follow automatically scrolling text and keep reading without stopping. Choose Gentle, Lesson, or Challenge pace to develop a smoother, more continuous speaking rhythm. TRACK YOUR LEARNING See today’s goal, words or characters read, sentences completed, time spent reading aloud, shadowing time, and completed scenes. SceneFlow uses calm daily goals—5 minutes or 10 scenes—rather than streak pressure. LEARN JAPANESE OR ENGLISH Switch the language you want to learn at any time. Japanese learners can use English support, while English learners can use Japanese translations. Progress is stored separately for each language. DESIGNED WITH PRIVACY IN MIND • No account required • No ads • Lessons and audio are included in the app • Recorded audio is not saved as learning history • Lessons and audio playback remain available without speech recognition Notice the small details in ordinary scenes, and turn a few minutes each day into meaningful language practice with SceneFlow. FREE CONTENT SceneFlow is free to download, so you can start learning right away. • Access up to 10 topic lessons in each category • Access up to 3 long-form lessons in each duration: 1, 2, and 3 minutes For every unlocked lesson, you can use the regular learning features, including lesson details, normal and slow audio, reading aloud, recognized-text matching, shadowing, paced read aloud, and progress tracking. FULL ACCESS Purchase Full Access through an in-app purchase to remove the limits on the lesson library. • Access all 154 topic lessons • Access all 30 long-form lessons Full Access does not add a separate set of practice modes. It unlocks the complete lesson library, including the lessons that are unavailable with free access.

Screenshots

CheckBoostAudio2 screens
SceneFlow4 screens

Verdict

The call

The clearest difference is in-app purchases: CheckBoostAudio at none against SceneFlow's 1. CheckBoostAudio also leads on iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SceneFlow sells 1 one-off in-app purchase. CheckBoostAudio asks for nothing beyond the download.

Scorecard2 real differences · 4 level
CheckBoostAudio versus SceneFlow: the parameters behind the verdict, then further details
ParameterCheckBoostAudioSceneFlow
PriceFreeFree
Update frequencyEvery 3 days—
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size32 MB300 MB
Age rating4+4+
DeveloperMasatomo FukudaAIビジョンテクノロジー株式会社

In-app purchases

None

CheckBoostAudio

No in-app purchases

1 purchases

SceneFlow

One-time1
  • Unlock All Content$3.99

Questions

Is CheckBoostAudio free?
CheckBoostAudio is free to download, with no in-app purchases.
Is SceneFlow free?
SceneFlow is free to download, with in-app purchases available.
Do CheckBoostAudio or SceneFlow have ads?
Neither CheckBoostAudio nor SceneFlow shows ads.

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