Comparison

Harmonica Real Pro vs Reverse Singing

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

Head to head
About

Harmonica Real Pro

This app simulates a diatonic harmonica, offering various practice modes and features. Learn and play songs with adjustable speed and pitch, and record your performances.

Highlights
  • Diatonic harmonica simulation
  • Offline and online song library
  • Adjustable playback speed
  • Transpose and reverb effects
  • Normal and RealTime play modes
  • Autoplay option
  • Recording and sharing functionality
Features
Read full description

The harmonica, also known as a French harp or mouth organ, is a free reed wind instrument used worldwide in many musical genres, notably in blues, American folk music, classical music, jazz, country, and rock. The many types of harmonica include diatonic, chromatic, tremolo, octave, orchestral, and bass versions. A harmonica is played by using the mouth (lips and tongue) to direct air into or out of one (or more) holes along a mouthpiece. Behind each hole is a chamber containing at least one reed. The most common is the diatonic Richter-tuned with ten air passages and twenty reeds, often called the blues harp. A harmonica reed is a flat, elongated spring typically made of brass, stainless steel, or bronze, which is secured at one end over a slot that serves as an airway. When the free end is made to vibrate by the player's air, it alternately blocks and unblocks the airway to produce sound. Reeds are tuned to individual pitches. Tuning may involve changing a reed's length, the weight near its free end, or the stiffness near its fixed end. Longer, heavier, and springier reeds produce deeper, lower sounds; shorter, lighter, and stiffer reeds make higher-pitched sounds. If, as on most modern harmonicas, a reed is affixed above or below its slot rather than in the plane of the slot, it responds more easily to air flowing in the direction that initially would push it into the slot, i.e., as a closing reed. This difference in response to air direction makes it possible to include both a blow reed and a draw reed in the same air chamber and to play them separately without relying on flaps of plastic or leather (valves, wind-savers) to block the nonplaying reed. An important technique in performance is bending, causing a drop in pitch by making embouchure adjustments. Bending isolated reeds is possible, as on chromatic and other harmonica models with wind-savers, but also to both lower, and raise (overbend, overblow, overdraw) the pitch produced by pairs of reeds in the same chamber, as on a diatonic or other unvalved harmonica. Such two-reed pitch changes actually involve sound production by the normally silent reed, the opening reed (for instance, the blow reed while the player is drawing). (https://en.wikipedia.org/wiki/Harmonica) The Harmonica Real is Diatonic Harmonica musical instrument simulation app. More offline and online songs for practice (With the ability to change speed, transpose, reverb). Play with 2 modes: - Normal - RealTime You can choose autoplay for listening songs. Record feature: record, play back and share to your friends. Reverb feature. ** Songs is updated regularly

About

Reverse Singing

Record your voice, then reverse and transform it with a variety of hilarious audio effects. Create funny clips, experiment with voice changers, and share your creations with friends.

Highlights
  • Record audio
  • Reverse audio
  • Apply voice changer effects
  • Save and share audio clips
  • Experiment with microphone
Features
Read full description

Discover the Fun of Reversing Your Voice (and all the crazy effects!) with Reverse Singing! - Record, reverse, and transform your audio into hilarious creations. - Reverse Singing is the #1 app for voice reversing and funny audio effects. - Reverse Singing lets you record, reverse audio, and apply wild voice changer effects like alien, chipmunk, ghost, demon, giant voice, vocoder, autotune, and more. - Reverse Singing is perfect for laughing with friends, making funny clips, or just experimenting with your microphone. How to Use: 1. Record your voice using the built-in microphone. 2. Reverse audio, add effects like autotune, vocoder, or reverb, and play back the results. 3. Save your funniest voice clips or share them with friends to make them laugh! A SUBSCRIPTION IS REQUIRED TO ACCESS PREMIUM EFFECTS AND FEATURES. The Terms of Use (EULA) can be found here: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Harmonica Real Pro4 screens
Reverse Singing4 screens

Verdict

The call

Harmonica Real Pro and Reverse Singing both sit at 4.8 stars, but that hides the real split: 78% of Harmonica Real Pro's written reviews are positive against 25% of Reverse Singing's. Harmonica Real Pro also leads on in-app purchases (none vs 6) and iOS requirement (13.0 vs 15.1). Reverse Singing's advantage is ads (none vs shown) and update cadence (every 11 days vs every 5 weeks). On price, rating, ratings volume 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. Reverse Singing sells 6 in-app purchases, starting at $4.99 per 7 days. Harmonica Real Pro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Harmonica Real Pro against 4.7 for Reverse Singing. Both are backed by a comparable volume of ratings — 4.6K and 7.7K respectively. Written reviews are what separate them: 78% of Harmonica Real Pro's written reviews are positive against 25% of Reverse Singing's.

UpkeepUpdate frequency

Harmonica Real Pro ships an update every 5 weeks, Reverse Singing every 11 days. The most recent releases landed on September 23, 2026 and September 24, 2026 respectively.

Scorecard7 real differences · 4 level
Harmonica Real Pro versus Reverse Singing: the parameters behind the verdict, then further details
ParameterHarmonica Real ProReverse Singing
PriceFreeFree
Rating4.8 (4.6K ratings) — better4.7 (7.7K ratings)
Positive reviews78.5% of reviews — better25.0% of reviews
Number of ratings4.6K7.7K — better
Update frequencyEvery 5 weeksEvery 11 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFreemium
Best chart rank—#72 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.0 — better15.1
Further details — not scored
Size100 MB43 MB
Age rating4+4+
DeveloperSon Truong NgocCalico Studio Inc.

Customer experience

Harmonica Real Pro

All ratings4,621 ratings
Positive94.2%
Neutral2.5%
Negative3.3%
Written reviews79 reviews
Positive78.5%
Neutral7.6%
Negative13.9%

Reverse Singing

All ratings7,734 ratings
Positive92.2%
Neutral1.5%
Negative6.3%
Written reviews136 reviews
Positive25.0%
Neutral2.9%
Negative72.1%

Bugs and requests

Harmonica Real Pro

Not enough reviews yet to summarise bugs or requests.

Reverse Singing

Reported bugs

1 issue
  • Couldn't delete the app

Requested features

1 request
  • More attempts or a less restrictive usage model

In-app purchases

None

Harmonica Real Pro

No in-app purchases

6 purchases

Reverse Singing

Subscriptions6
  • Unlimited Access3 Days trial$4.997 Days
  • Unlimited Access3 Days trial$7.997 Days
  • Unlimited Access$9.991 Month
Show 3 more
  • Unlimited Access3 Days trial$9.997 Days
  • Unlimited Access3 Days trial$14.997 Days
  • Unlimited Access$29.991 Year

Questions

Is Harmonica Real Pro free?
Harmonica Real Pro is free to download, with no in-app purchases.
Is Reverse Singing free?
Reverse Singing is free to download, with in-app purchases available.
Which has better reviews, Harmonica Real Pro or Reverse Singing?
Harmonica Real Pro is rated higher. Harmonica Real Pro averages 4.8 out of 5 from 4.6K ratings, while Reverse Singing averages 4.7 from 7.7K ratings.
Do Harmonica Real Pro or Reverse Singing have ads?
Harmonica Real Pro shows ads; Reverse Singing does not.
Which is updated more often, Harmonica Real Pro or Reverse Singing?
Harmonica Real Pro ships an update every 5 weeks, and Reverse Singing every 11 days. Most recently, Harmonica Real Pro was updated on September 23, 2026 and Reverse Singing on September 24, 2026.

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