Comparison

RetroTone vs Live Spectrum Analyzer

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

Head to head
About

RetroTone

Generate precise audio frequencies from 20Hz to 20,000Hz for various uses like relaxation, study, or sleep. Test your hearing range with a slider and tune musical instruments with the built-in tuner. Enjoy a simple, retro-inspired interface.

Highlights
  • Precise frequency generation (20Hz-20,000Hz)
  • Hearing range testing slider
  • Built-in instrument tuner
  • Supports relaxation and study frequencies (e.g., 432Hz, 528Hz)
  • Simple retro design
  • Includes bonus tracks
Features
Read full description

【日本語】 20Hzから20000Hzまで数値を直接入力してお望みの周波数をえらべます。スライダーを動かして何処まで聴こえるか試せます。432Hzや528Hzなどの周波数は、多くの人がリラックスや瞑想に活用しています。ヨガ、勉強、睡眠導入などに、自分好みの音をどうぞ。内蔵チューナーで楽器のチューニングにも使えます。シンプル設計で、レトロな雰囲気を楽しめます。 追加曲として RetroTone_A440.0Hz / RetroTone_A432.0Hz / RTSHealing_A432.0Hz の3曲を収録しています。 【English】 Directly enter any value from 20Hz to 20,000Hz to play exactly the frequency you want, or move the slider to test your hearing range. Frequencies like 432Hz and 528Hz are loved for relaxation, meditation, yoga, study or sleep. A built-in tuner also helps you tune your instruments. Simple design with a retro vibe. Includes 3 new tracks: RetroTone_A440.0Hz / RetroTone_A432.0Hz / RTSHealing_A432.0Hz. 【中文】 直接输入 20Hz 至 20000Hz 的任意数值即可播放您想要的频率,也可滑动滑块测试听力范围。432Hz、528Hz 等频率深受放松、冥想与专注人群喜爱,适合瑜伽、学习与助眠。内置调音器还可为乐器调音。设计简洁,尽享复古音色。 新增3首曲目:RetroTone_A440.0Hz / RetroTone_A432.0Hz / RTSHealing_A432.0Hz。 【한국어】 20Hz~20000Hz 값을 직접 입력해 원하는 주파수를 재생하거나, 슬라이더로 가청 범위를 테스트할 수 있습니다. 432Hz·528Hz 등의 주파수는 휴식·명상·요가·공부·수면에 좋습니다. 내장 튜너로 악기 튜닝에도 사용할 수 있습니다. 심플한 디자인의 레트로 사운드. 추가 곡 3곡 수록: RetroTone_A440.0Hz / RetroTone_A432.0Hz / RTSHealing_A432.0Hz. 【Español】 Introduce cualquier valor de 20Hz a 20.000Hz para reproducir la frecuencia exacta que quieras, o usa el deslizador para probar tu rango auditivo. Frecuencias como 432Hz y 528Hz son ideales para relajación, meditación, yoga, estudio o dormir. Un afinador integrado también afina tus instrumentos. Diseño sencillo y retro. Incluye 3 pistas nuevas: RetroTone_A440.0Hz / RetroTone_A432.0Hz / RTSHealing_A432.0Hz. 【Français】 Saisissez une valeur de 20Hz à 20 000Hz pour jouer la fréquence souhaitée, ou utilisez le curseur pour tester votre audition. Des fréquences comme 432Hz et 528Hz sont parfaites pour la relaxation, la méditation, le yoga, l'étude ou le sommeil. Un accordeur intégré accorde aussi vos instruments. Design simple et rétro. Comprend 3 nouveaux titres : RetroTone_A440.0Hz / RetroTone_A432.0Hz / RTSHealing_A432.0Hz. 【Deutsch】 Geben Sie einen Wert von 20Hz bis 20.000Hz ein, um die gewünschte Frequenz abzuspielen, oder testen Sie mit dem Schieberegler Ihren Hörbereich. Frequenzen wie 432Hz und 528Hz sind ideal für Entspannung, Meditation, Yoga, Lernen oder Schlaf. Ein integriertes Stimmgerät stimmt auch Instrumente. Schlichtes Retro-Design. Enthält 3 neue Titel: RetroTone_A440.0Hz / RetroTone_A432.0Hz / RTSHealing_A432.0Hz. 【Português】 Insira qualquer valor de 20Hz a 20.000Hz para tocar a frequência desejada, ou use o controle deslizante para testar sua audição. Frequências como 432Hz e 528Hz são ótimas para relaxamento, meditação, yoga, estudo ou sono. Um afinador integrado também afina seus instrumentos. Design simples e retrô. Inclui 3 novas faixas: RetroTone_A440.0Hz / RetroTone_A432.0Hz / RTSHealing_A432.0Hz. 【Italiano】 Inserisci un valore da 20Hz a 20.000Hz per riprodurre la frequenza desiderata, o usa il cursore per testare il tuo udito. Frequenze come 432Hz e 528Hz sono perfette per relax, meditazione, yoga, studio o sonno. Un accordatore integrato accorda anche i tuoi strumenti. Design semplice e retrò. Include 3 nuove tracce: RetroTone_A440.0Hz / RetroTone_A432.0Hz / RTSHealing_A432.0Hz. 【Русский】 Введите любое значение от 20 Гц до 20 000 Гц, чтобы воспроизвести нужную частоту, или используйте ползунок для проверки слуха. Частоты 432 Гц и 528 Гц идеальны для расслабления, медитации, йоги, учёбы и сна. Встроенный тюнер также настроит инструменты. Простой ретро-дизайн. Включает 3 новых трека: RetroTone_A440.0Hz / RetroTone_A432.0Hz / RTSHealing_A432.0Hz. 【العربية】 أدخل أي قيمة من 20Hz إلى 20000Hz لتشغيل التردد الذي تريده، أو استخدم شريط التمرير لاختبار سمعك. ترددات مثل 432Hz و528Hz مثالية للاسترخاء والتأمل واليوغا والدراسة والنوم. كما يضبط موالف مدمج آلاتك الموسيقية. تصميم بسيط بطابع ريترو. يتضمن 3 مقاطع جديدة: RetroTone_A440.0Hz / RetroTone_A432.0Hz / RTSHealing_A432.0Hz.

About

Live Spectrum Analyzer

Features
Read full description

Live Spectrum Analyzer is a real-time audio visualization tool for musicians, students, teachers, sound makers, and anyone who wants to see sound clearly. Use the microphone for live input, or import an audio file from Files to inspect how frequency, amplitude, pitch, and dynamics change over time. Switch between waveform, FFT, sonogram, spectrum bars, VU meter, pitch, octave bands, peak hold, envelope, waterfall, phase, Lissajous, and XY Scope views. Each mode is designed for quick visual reading while you listen, tune, practice, demonstrate acoustics, compare sounds, or check a recording. The app also provides practical analysis readouts, including RMS, peak level, decibels, detected pitch, strongest frequency peaks, spectral centroid, zero crossing rate, dynamic range, estimated BPM, beat strength, mel bands, chroma, noise floor, and clipping status. Results are intended as helpful visual references rather than certified measurement data. Key features: • Live microphone waveform and spectrum visualization • Import audio files for playback and local visual analysis • Waveform, FFT, sonogram, bars, VU, pitch, waterfall, phase, and scope modes • Adjustable gain, time window, FFT floor, sonogram brightness, contrast, and speed • Pitch reference, tolerance, microphone gain, and noise gate settings • Record audio locally, review saved recordings, and share or delete files • Capture visualization snapshots as PNG images • Local-first workflow with no account required Subscription and purchase information: The app offers a free experience and optional Pro access. Actual prices, trials, promotions, and availability are shown in the App Store. Privacy and data information: Your microphone input, imported audio, recordings, snapshots, and analysis results stay on your device by default. The app does not require an account and does not upload your media to a server operated by us. Privacy Policy: https://sites.google.com/view/livespectrumanalyzer/home/privacypolicy Terms of Use: https://sites.google.com/view/livespectrumanalyzer/home/term_of_use Contact: gongchengyong70@gmail.com

Screenshots

RetroTone4 screens
Live Spectrum Analyzer4 screens

Verdict

The call

The clearest difference is in-app purchases: RetroTone at none against Live Spectrum Analyzer's 3. RetroTone also leads on update cadence (weekly vs every 2 months). Live Spectrum Analyzer's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 26.2). On price and ads 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. Live Spectrum Analyzer sells 3 in-app purchases, starting at $1.99 per month. RetroTone asks for nothing beyond the download.

UpkeepUpdate frequency

RetroTone ships an update weekly, Live Spectrum Analyzer every 2 months. The most recent releases landed on October 13, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 4 level
RetroTone versus Live Spectrum Analyzer: the parameters behind the verdict, then further details
ParameterRetroToneLive Spectrum Analyzer
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyWeekly — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS26.215.6 — better
Further details — not scored
Size101 MB8 MB
Age rating4+4+
DeveloperHIROSHI SHINKAWA成勇 龚

In-app purchases

None

RetroTone

No in-app purchases

3 purchases

Live Spectrum Analyzer

Subscriptions2
  • Live Spectrum Analyzer Monthly PRO$1.991 Month
  • Live Spectrum Analyzer Yearly PRO$9.991 Year
One-time1
  • Live Spectrum Analyzer Life PRO$19.99

Questions

Is RetroTone free?
RetroTone is free to download, with no in-app purchases.
Is Live Spectrum Analyzer free?
Live Spectrum Analyzer is free to download, with in-app purchases available.
Do RetroTone or Live Spectrum Analyzer have ads?
Neither RetroTone nor Live Spectrum Analyzer shows ads.
Which is updated more often, RetroTone or Live Spectrum Analyzer?
RetroTone ships an update weekly, and Live Spectrum Analyzer every 2 months. Most recently, RetroTone was updated on October 13, 2026 and Live Spectrum Analyzer on October 24, 2026.

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