Comparison

TB Spectrogram vs Piano for Singers

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

Head to head
About

TB Spectrogram

This app provides real-time audio analysis with a spectrogram, spectrum analyzer, and goniometer. It can be used as a standalone application or as an AUv3 plugin within compatible music production hosts. Visualize your audio in detail with adjustable settings and multiple display options.

Highlights
  • Real-time spectrogram and spectrum analysis
  • Goniometer for stereo signal analysis
  • AUv3 plugin compatibility
  • Adjustable frequency and time resolution
  • Customizable color themes
  • On-screen piano keyboard mapping
Features
Read full description

ToneBoosters Spectrogram shows a real-time spectrogram, spectrum, and goniometer AUv3 plugin! We have taken the stunning visual spectrum analyzer features from our latest and greatest Equalizer Pro plugin and released it as a separate app / AUv3 plugin! The ToneBoosters Spectrogram app captures the microphone input and processes the signals in real time. To use it as a plug-in, use an AUv3-compatible host app such as Steinberg Cubasis, Apple Garageband, Audio Evolution Mobile Studio, Auria, AUM, or others. ToneBoosters Spectrogram will appear in the list of Audio Unit extensions for effect plug-ins. Key features: - Fully resizable (as AUv3 plugin) - Color themes for the user interface - Max screen support in Garageband - Adjustable color themes for UI and for spectrogram independently - Adjustable dynamic range - Adjustable frequency resolution - Adjustable time resolution - Adjustable spectral slope - Spectrogram AGC and dimming support - Show spectrogram and spectrum analyzer as overlay or individually - Spectrum analyzer also supports peak hold - Split-band goniometer for stereo signal analysis (correlation, left/right balance in one or two bands!) - On-screen piano keyboard to map spectrum analyzer to piano notes - Optimised for iPad and compatible with iPhone and iPod Touch What you should know: - Licenses acquired for this platform are not compatible with other platforms. - Audio Unit (AUv3) extensions require an iPad mini 2, iPad 4 or later models.

About

Piano for Singers

Practice vocal exercises, arias, and songs with adjustable piano accompaniment. Instantly transpose to any key and adjust tempo for personalized practice sessions. Explore a library of warmups, classical repertoire, and songs, with an option to unlock the full collection via subscription.

Highlights
  • Transposable piano accompaniment
  • Adjustable tempo (30-300 BPM)
  • Library of 120+ exercises and songs
  • Free Play and Auto-Piano modes
  • Simple, distraction-free interface
  • Works on iPhone and iPad
Features
Read full description

Piano for Singers is a simple, flexible practice companion for singers and voice teachers. Choose a vocal exercise, aria, or song, set your preferred key and tempo, and sing along with piano playback. 120 Exercises & Songs Explore a growing library of vocal exercises and classical repertoire: • 32 vocal warmup patterns, including scales, arpeggios, modes, and riffs • The complete Vaccai Practical Method of Italian Singing • 35 Arie Antiche, including Caro mio ben, Sebben crudele, and Lascia ch'io pianga • 14 songs by Francesco Paolo Tosti • 17 additional Neapolitan songs, including Torna a Surriento and Core 'ngrato Transposable Piano Accompaniment No need to play the accompaniment yourself. Select a piece and tap a piano key to hear it in your preferred key. Repertoire playback includes both piano accompaniment and the vocal melody as a reference. • Instantly change keys with a single tap • Adjust tempo from 30 to 300 BPM • Pause, resume, or jump to any passage • Practice at your own pace Two Piano Modes • Free Play: Use the responsive touch keyboard to play notes and chords freely. • Auto-Piano: Choose an exercise or piece and let the piano play it for you in the selected key and tempo. Designed for Singers • Simple, distraction-free interface • Works on iPhone and iPad • Built-in music library, no streaming required • No ads Free Access & Subscription Try Piano for Singers for free. One rotating warmup is available immediately each day, and other exercises and songs can be accessed after a short wait. An optional monthly or annual subscription provides immediate access to the entire library and supports ongoing development. Made by a voice teacher for singers. Privacy Policy: https://www.sirinsings.com/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

TB Spectrogram2 screens
Piano for Singers3 screens

Verdict

The call

The clearest difference is rating: Piano for Singers at 5.0 against TB Spectrogram's 4.4. Piano for Singers also leads on review sentiment (100% vs 71%). TB Spectrogram's advantage is in-app purchases (none vs 2) and ratings volume (50 vs 4). On price, update cadence, 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. Piano for Singers sells 2 in-app purchases, starting at $0.99 per month. TB Spectrogram asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Piano for Singers holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: TB Spectrogram has 50 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 71% of TB Spectrogram's written reviews are positive against 100% of Piano for Singers's.

UpkeepUpdate frequency

TB Spectrogram ships an update every 3 weeks, Piano for Singers every 4 weeks. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.

Scorecard6 real differences · 4 level
TB Spectrogram versus Piano for Singers: the parameters behind the verdict, then further details
ParameterTB SpectrogramPiano for Singers
PriceFreeFree
Rating4.4 (50 ratings)5.0 (4 ratings) — better
Positive reviews71.0% of reviews100.0% of reviews — better
Number of ratings50 — better4
Update frequencyEvery 3 weeks — betterEvery 4 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFreemium — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size15 MB158 MB
Age rating4+4+
DeveloperToneBoostersSirin Sings LLC

Customer experience

TB Spectrogram

All ratings50 ratings
Positive86.0%
Neutral2.0%
Negative12.0%
Written reviews31 reviews
Positive71.0%
Neutral6.5%
Negative22.6%

Piano for Singers

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

TB Spectrogram

No in-app purchases

2 purchases

Piano for Singers

Subscriptions2
  • Piano for Singers – Supporter$0.991 Month
  • Piano for Singers – Supporter$9.991 Year

Questions

Is TB Spectrogram free?
TB Spectrogram is free to download, with no in-app purchases.
Is Piano for Singers free?
Piano for Singers is free to download, with in-app purchases available.
Which has better reviews, TB Spectrogram or Piano for Singers?
Piano for Singers is rated higher. TB Spectrogram averages 4.4 out of 5 from 50 ratings, while Piano for Singers averages 5.0 from 4 ratings.
Do TB Spectrogram or Piano for Singers have ads?
Neither TB Spectrogram nor Piano for Singers shows ads.
Which is updated more often, TB Spectrogram or Piano for Singers?
TB Spectrogram ships an update every 3 weeks, and Piano for Singers every 4 weeks. Most recently, TB Spectrogram was updated on November 3, 2026 and Piano for Singers on November 8, 2026.

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