Comparison

Sing vs JMP Pro

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

Head to head
About

Sing

Visualize your singing or instrument playing pitch with a color-coded graph. This app analyzes audio input to show if you are on, sharp, or flat, helping you train your ear for accurate intonation.

Highlights
  • Color-coded pitch graph
  • Real-time audio analysis
  • Visualizes pitch accuracy
  • Supports singing and instruments
  • Pitch frequency spectrum display
  • Monophonic pitch detection
Features
Read full description

Can you sing in tune? Learn to sing (or play an instrument) accurately in tune with HotPaw Sing-inTuna's color-coded pitch graph. Sing-inTuna uses the built-in microphone on your iPhone or iPad to analyze and help you visualize if you are singing, or playing a musical instrument (such as a violin), precisely on the right pitch. It graphs pitch on a scrolling graph resembling a musical Grand Staff. Tones that are on-pitch (+-20 cents) are colored green; notes slightly sharp: red; notes a pinch flat: blue. You can also display an optional pitch frequency spectrum of your voice to see your timbre. Sing-inTuna requires a quiet environment with no accompaniment or harmony, and monophonic pitches that are at least a quarter second long. The pitch range using the built-in mic is about +-2 octaves from middle-C, depending on microphone use, loudness, and timbre. Note: This app produces no sounds and shows no sheet music. It only listens so that you can see your pitch, and how well your pitch matches that of a well tuned equal-temperament instrument.

About

JMP Pro

This app emulates a classic guitar preamplifier, offering four distinct channels for various tones from clean to high-gain metal. It includes a power amplifier, digital delay, analog modulations, and reverb. It functions as a standalone app or an audio effect.

Highlights
  • Four distinct amplifier channels
  • Virtual EL34 power amplifier
  • Digital delay with filter and offset
  • Analog chorus and tremolo modulation
  • Hall reverb algorithm
  • Noise gate and studio compressor
Features
Read full description

PREAMPLIFIER Nembrini Audio JMP Pro Guitar Amplifier plugin is based on a Marshall JMP1* preamplifier. JMP Pro Valve Amplifier drives pure tone into each of its four uniquely voiced channels OD1, OD2, Clean1 and Clean2 OD1: This channel’s smouldering power will take you from the molten gold of a classic British sound, to searing metal and all points in between. OD2: Tightly focused, high gain is served up here by the truckload. Modern and aggressive, yet fluid and toneful. This channel has all the distortion and sustain you’ll ever need. Clean1: It is perfect for warm full-bodied chords, fat clean lead passages and jazz tones. Clean2: It has the glassy edge of a classic British sound for those bright, jangly tones. POWER AMPLIFIER Powered by four EL34 virtual tubes with presence, volume and power switch in class AB push-pull configuration. DIGITAL DELAY FILTER make the delay Lo-Fi and OFFSET create a time offset in left/right delay sections ANALOG MODULATIONS select Chorus or Tremolo modulation AMBIENT REVERB Hall reverb algorithm FILTERS CLEANER Low and High cut filters PRE and POST amplifier ANALOG NOISE GATE tuned for guitar and bass STUDIO COMPRESSOR keep your dynamics in check, whether just thickening the sound or keeping levels consistent Works as a standalone app, AudioUnit v3 effect, or Inter-App Audio effect. Legal Disclaimer: JMP1 is a registered trademark of Marshall Amplification PLC. Nembrini Audio JMP Pro was developed by Nembrini Audio SRL based on its own modelling techniques. Marshall Amplification PLC has not endorsed nor sponsored the Nembrini Audio JMP Pro in any manner, nor licensed any intellectual property for use in this product.

Screenshots

Sing1 screens
JMP Pro2 screens

Verdict

The call

The clearest difference is price: Sing at $4.99 against JMP Pro's $19.99. Sing also leads on update cadence (every 6 months vs every 50 months). JMP Pro's advantage is rating (5.0 vs 3.0) and review sentiment (100% vs 63%). On ratings volume, 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

CostPrice · In-app purchases · Ads · Monetization

Sing costs $4.99 and JMP Pro $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

JMP Pro holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews point the same way: 63% of Sing's written reviews are positive against 100% of JMP Pro's.

UpkeepUpdate frequency

Sing ships an update every 6 months, JMP Pro every 50 months. The most recent releases landed on October 8, 2026 and October 15, 2026 respectively.

Scorecard4 real differences · 6 level
Sing versus JMP Pro: the parameters behind the verdict, then further details
ParameterSingJMP Pro
Price$4.99 — better$19.99
Rating3.0 (2 ratings)5.0 (4 ratings) — better
Positive reviews62.5% of reviews100.0% of reviews — better
Number of ratings24 — better
Update frequencyEvery 6 months — betterEvery 50 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615 — better
Further details — not scored
Size2 MB30 MB
Age rating4+4+
DeveloperHotPaw ProductionsNembrini Audio

Customer experience

Sing

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews16 reviews
Positive62.5%
Neutral6.3%
Negative31.3%

JMP Pro

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Sing

No in-app purchases

None

JMP Pro

No in-app purchases

Questions

Is Sing free?
Sing costs $4.99, with no in-app purchases.
Is JMP Pro free?
JMP Pro costs $19.99, with no in-app purchases.
Which has better reviews, Sing or JMP Pro?
JMP Pro is rated higher. Sing averages 3.0 out of 5 from 2 ratings, while JMP Pro averages 5.0 from 4 ratings.
Do Sing or JMP Pro have ads?
Neither Sing nor JMP Pro shows ads.
Which is updated more often, Sing or JMP Pro?
Sing ships an update every 6 months, and JMP Pro every 50 months. Most recently, Sing was updated on October 8, 2026 and JMP Pro on October 15, 2026.

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