Tuner+ vs Cello Tuner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tuner+
This app provides perfectly tuned reference notes for various musical instruments, allowing users to tune by ear. It offers both real audio and sine wave sounds and supports VoiceOver accessibility. It does not analyze instrument notes but serves as a quick reference for tuning in any key.
- Plays reference notes for tuning
- Supports guitar, bass, piano, and more
- Real audio and sine wave sounds
- VoiceOver accessibility
- Tune in any key
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Tuner+ Tune your Guitar, Bass, Banjo, Mandolin, Cello, Violin, Piano, Viola, or Ukulele in seconds. This app plays perfectly tuned notes for you to match your pitch to. The sounds are both real audio and sine wave form. We're also proud to announce that Tuner+ is now supports full VoiceOver Accessibility. This app does NOT analyze the notes of your instrument to tell you if you are sharp or flat. It is just a quick way to get reference notes for ear tuning in any key. Enjoy! Nick Moby Pixel
Cello Tuner
This app provides precise tuning for string instruments with auto noise filtering and multiple tuning modes. It also includes a metronome with various beat types and subdivision options to aid practice.
- Auto noise filtering
- Standard, 5th Suite, Kodály, and Whole step down tuning modes
- Calibrate piano sound
- A4 frequency adjustment
- Intuitive metronome interface
- 18 beat types
- Segment beat subdivision
- Pendulum display mode
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Include Standard, 5th Suite, Zoltán Kodály, Whole step down modes. The simplest and most precise tuning APP with auto noise filtering. First step is choose the frequency at top of screen, then choose the tuning at the middle of the screen. When you play instrument, the pitch will be shown on the panel for the individual string by indicating signal high or low. [Tuner] - Calibrate Piano Sound : Click on an open string then calibrate the sound with your instrument. Piano Sound A4=442. - A4 Frequency adjustment: choose 428~452 frequencies for A4 string. - The scale for precision tuning is 10 cents for every sub-bit. The green arrow means pitch is accurate and it will turn white once the pitch difference exceeds more than a sub-bit. [Metronome] - The operation screen is intuitive and easy to use. All functions can be set on the same page. - Intuitive beat mode selection, 18 types, including: Grave 25-45 / Largo 40-60 / Lento 45-60 / Larghetto 60-66 / Adagio 66-76 / Adagietto 72-76 / Andante 76-108 / Andantino 80- 108 / Marcia moderato 83-85 /Andante moderato 92-112 / Moderato 108-120 / Allegretto 112-120 / 116-120/ Allegro 120-156 / Vivace 156-176 / Vivacissimo 172-176 / Presto 168-200 / Prestissimo 200 Bpm and over - Support for "segment beat" function, double, triple and quad beat subdivision - Support pendulum display mode - Timing display Helps control the practice time - Use RTP (Real Time Playback) mode, precise beat, and support dynamic shifting
Screenshots
Verdict
The clearest difference is rating: Tuner+ at 4.7 against Cello Tuner's 3.8. Tuner+ also leads on review sentiment (82% vs 59%) and ratings volume (1.1K vs 17). Cello Tuner's advantage is update cadence (monthly vs every 6 months). On price, ads, in-app purchases and monetization model 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. Tuner+ sells 1 one-off in-app purchase and Cello Tuner sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Tuner+ holds the better App Store score, 4.7 against 3.8. That said, the two scores are not equally well evidenced: Tuner+ has 1.1K ratings behind it against 17, so its average is the more settled of the two. Written reviews point the same way: 82% of Tuner+'s written reviews are positive against 59% of Cello Tuner's.
Tuner+ ships an update every 6 months, Cello Tuner monthly. Both last shipped on October 16, 2026.
| Parameter | Tuner+ | Cello Tuner |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (1.1K ratings) — better | 3.8 (17 ratings) |
| Positive reviews | 82.4% of reviews — better | 59.3% of reviews |
| Number of ratings | 1.1K — better | 17 |
| Update frequency | Every 6 months | Monthly — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 12.1 — better |
| Further details — not scored | ||
| Size | 9 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | Nick Culbertson | Hsing-Fu Hsueh |
Customer experience
Tuner+
Cello Tuner
Bugs and requests
Tuner+
Reported bugs
2 issues- App crashes on certain devices
- Distortion on some string notes
Requested features
4 requests- Add support for alternate tunings
- Provide visual tuning indicators
- Include a metronome feature
- Expand instrument selection
Cello Tuner
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Tuner+
- Remove Ads - Tuner+$0.99
Cello Tuner
- All Function&No Ads$0.99








