TB Spectrogram vs Piano for Singers
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
Piano for Singers
This app provides a responsive practice tool for singers and voice teachers. It offers two modes: Free Play for improvisation and Auto-Piano for practicing scales, arpeggios, and riffs in any key. It's designed for warm-ups and key-by-key practice with a fast, distraction-free interface.
- Free Play mode
- Auto-Piano mode
- Scales and arpeggios
- Customizable tempo
- Distraction-free interface
- Works on iPhone and iPad
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Piano for Singers is a simple, responsive practice tool for singers and voice teachers. Two modes • Free Play — play the keyboard freely • Auto-Piano — choose a pattern such as a scale, arpeggio, or riff, then tap any key to hear it played once in that key at your selected tempo Why singers like it • Fast, distraction-free interface • Great for warm-ups, riffs and runs, and key-by-key practice • Works on both iPhone and iPad • No ads Subscription The app is free to use. An optional monthly or yearly subscription removes the short wait screen and supports ongoing development and new patterns. Privacy This app does not record audio or collect personal data. 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
Verdict
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
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.
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.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 14, 2026 and October 10, 2026 respectively.
| Parameter | TB Spectrogram | Piano for Singers |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (50 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 71.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 50 — better | 4 |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Freemium — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 15 MB | 165 MB |
| Age rating | 4+ | 4+ |
| Developer | ToneBoosters | Sirin Sings LLC |
Customer experience
TB Spectrogram
Piano for Singers
In-app purchases
TB Spectrogram
No in-app purchases
Piano for Singers
- Piano for Singers – Supporter$0.991 Month
- Piano for Singers – Supporter$9.991 Year
Questions
Is TB Spectrogram free?
Is Piano for Singers free?
Which has better reviews, TB Spectrogram or Piano for Singers?
Do TB Spectrogram or Piano for Singers have ads?
Which is updated more often, TB Spectrogram or Piano for Singers?
Other comparisons
