MBR vs Latch Tuner
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
MBR
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MBR-01 is an expressive polyphonic synthesizer you play by touch. No keys, no menus to get lost in โ just a living surface that responds to where and how you press. Slide across the XY pad to bend pitch and open the filter at once. The instrument is locked to the scale you choose, so every note lands in key: explore freely without ever playing a wrong note. SIX VOICES, ONE EXPRESSIVE SURFACE โข 6-voice polyphony with glide โข Morphing oscillator (sine โ triangle โ saw โ square) plus a sub โข Resonant ladder filter with its own range control โข Full ADSR envelope ARPEGGIATOR โข Up, Down, Up/Down and Random modes โข Tempo with tap, adjustable divisions and octave range โข Hold to let chords ring LIVE FX RACK โข Drive, bitcrusher, ring modulator, pitch shifter, phaser and chorus โข Delay, reverb and glide for space and movement โข Toggle and tweak everything while you play 31 SCALES From major and minor to whole tone, diminished and blues โ through Hirajoshi, Iwato, Kumoi, Pelog, Bhairav, Marwa and more. Set the root and octave range and the whole surface re-tunes. PRESETS A curated library across Bass, Leads, Plucks, Pads and FX โ plus save your own. Each preset carries its own reactive visual style. REACTIVE VISUALS A Metal-powered visualizer reacts to your playing in real time, with external display output for performance and visuals. MIDI OUT Send what you play to hardware synths or other apps over Core MIDI, with channel selection. BILINGUAL Full English and Spanish, switchable inside the app at any time. Built for iPad and iPhone. No account, no data collection โ just sound.
Latch Tuner
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Know the note. Get the numbers. Back to the beat. Ordinary tuners are built for long, sustained notes. Play a one-shot through one and the needle jumps around during the attack, then goes blank before you can read it. Latch Tuner is built for how producers actually work: it skips the attack, measures the body of the sound, and holds the answer on screen after the sample has ended. How it works. You chopped a bass note from an old record and it's fighting your track. Insert Latch Tuner on the channel, trigger the pad once, and it reads: E3 โ26.5 ยข ยท 324.6 Hz ยท MIDI 64 Set TARGET to the note you actually want โ say C3 โ and it does the conversion for you: SEMI โ4 ยท FINE +27 Those are the two numbers your sampler's pitch controls take. Type them in, retrigger, done. No looping the sample into a phone tuner, no guessing against a piano. Two modes. โข LATCH โ for one-shots, chops, plucks, vocal stabs and 808s. Transient-aware capture holds the reading until you clear it. Capture history keeps your last few results on screen, so you can work through a whole kit without writing anything down. โข LIVE โ stop switching apps to tune. A straightforward in-line tuner for guitar, synth and voice, docked in a corner of your session. It tells you when it isn't sure. A gliding 808 or a weak fundamental reads as low confidence rather than a confident wrong answer. A chord reads as its root, flagged rather than asserted. Noise and washed-out chops report no clear pitch, because there isn't one. Tap PLAY to hear a reference tone against the sample and decide with your ears โ below ~80 Hz the tone adds an octave-up partial so you can hear it on a device speaker. Speaks sampler. Note name, cents, frequency and MIDI note number, plus the SEMI/FINE correction to your chosen target. Samplers disagree about octave numbers, so the readout shows its convention next to every answer โ and a C3/C4 toggle matches it to yours. It can't silently put you an octave off. Adjustable reference pitch (440, 432, 442โฆ). Runs where you work. An AUv3 audio effect โ use it in AUM, Koala, GarageBand, or any other AUv3 host. Plus a standalone app that listens through the mic. Audio passes through untouched. One-time purchase. No subscription, no ads, no account. Everything is analyzed on-device; nothing is recorded or uploaded.
Screenshots
Verdict
MBR and Latch Tuner are too close to call on the numbers: across 5 compared parameters โ price, ads, in-app purchases and device support among them โ neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
MBR costs $4.99 and Latch Tuner $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | MBR | Latch Tuner |
|---|---|---|
| Price | $4.99 | $4.99 |
| Update frequency | โ | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 | 16.0 |
| Further details โ not scored | ||
| Size | 3 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Cristopher Alejandro Yescas Arreola | Bruno Santos Marinho |
In-app purchases
MBR
No in-app purchases
Latch Tuner
No in-app purchases









