S vs MP3 Pitch Changer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
S
This semi-modular synthesizer app for iPad offers a hands-on sound design experience with a single-screen interface for intuitive patching. It delivers a warm, vintage sound inspired by 1970s synthesizers, featuring dual oscillators, resonant filters, and multiple modulation sources.
- Single-screen interface
- Fast, hands-on patching
- Vintage 1970s synth sound
- Dual oscillators
- Resonant ladder filter
- Multiple modulation sources
Read full descriptionHide full description
S-Modular is a semi-modular synthesiser for iPad, designed for fast, hands-on patching without clutter. Everything is presented on a single screen, making sound design immediate and intuitive. Simply drag from one jack to another to create connections. S-Modular delivers a distinctive vintage sound inspired by classic 1970s synthesis — warm, rich, and full of character. Features Dual oscillators 24 dB/oct ladder filter Resonant high-pass and low-pass filters Two LFOs Four-step CV sequencer Four-track mixer Audio and CV splitter Two AHR envelope generators Delay effect
MP3 Pitch Changer
Adjust audio speed and pitch in real-time with various effects. This tool is ideal for musicians and singers looking to practice songs at different tempos or tunings. Easily modify frequency and tempo with simple sliders and export your creations.
- Real-time pitch and speed adjustment
- Reverb, Delay, Echo & Distortion effects
- Independent or simultaneous control
- Export adjusted songs
- Save custom settings
- Support for various audio formats
Read full descriptionHide full description
Real-Time audio speed and pitch adjustment with Reverb, Delay, Echo & Distortion effect. An audio speed changer and pitch shifting app designed for musicians & singers. You can easily change the speed and pitch of audio files on your iPhone/iPad device either independently or at the same time. Useful for practicing fast songs, or those that need different tunings. Simple controls and clear visuals make Up Tempo easy to use without compromising accuracy. Modify the frequency or tempo of your sound files by simply moving two sliders. If you move the speed slider, your music will play in slow motion or faster. On the other hand, if you move the pitch slider, you will get a high-pitched or low-pitched audio. Apply effects on your audio. By playing with the sliders, you can get a squirrel or evil voice. You can also export your adjusted song & share with friends or listening in another player. Mp3 Pitch Changer Features: - Alter the pitch- change song pitch up or down - Change the tempo - change audio speed to a % of original speed - Support various formats of audio files. - Play instantly with real-time audio speed and pitch adjustment with Reverb Delay Echo & distortion effect. - Export adjusted song in m4a format - Save settings for use another time. - Real-Time audio speed and pitch adjustment - You can also save the adjusted audio file.
Screenshots
Verdict
The clearest difference is rating: S at 2.6 against MP3 Pitch Changer's 1.0. S also leads on review sentiment (31% vs 0%) and ratings volume (11 vs 3). MP3 Pitch Changer's advantage is price ($1.99 vs $2.99) and iOS requirement (12.4 vs 15.6). On ads, in-app purchases, monetization model 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
S costs $2.99 and MP3 Pitch Changer $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
S holds the better App Store score, 2.6 against 1.0. Both are backed by a comparable volume of ratings — 11 and 3 respectively. Written reviews point the same way: 31% of S's written reviews are positive against 0% of MP3 Pitch Changer's.
| Parameter | S | MP3 Pitch Changer |
|---|---|---|
| Price | $2.99 | $1.99 — better |
| Rating | 2.6 (11 ratings) — better | 1.0 (3 ratings) |
| Positive reviews | 31.3% of reviews — better | 0.0% of reviews |
| Number of ratings | 11 — better | 3 |
| Update frequency | Every 7 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 12.4 — better |
| Further details — not scored | ||
| Size | 7 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Paul Betowski | Suresh Verma |
Customer experience
S
MP3 Pitch Changer
In-app purchases
S
No in-app purchases
MP3 Pitch Changer
No in-app purchases








