Comparison

Sampledex Effect Shift vs Roboto AUv3 Singing Synth

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

Head to head
About

Sampledex Effect Shift

This app offers a versatile audio effects suite with 50 distinct effects, seven macro controls, and a seven-band EQ. Shape sounds with various parameters, explore factory presets, and integrate into your music workflow via AUv3 extension or live input processing.

Highlights
  • 50 effect choices
  • Seven hands-on macro controls
  • Seven-band Bender EQ
  • 51 factory presets
  • AUv3 audio effect extension
  • Live input processing
  • EQ A/B comparison
Features
Read full description

Give your sound a new direction. Sampledex Effect Shift brings 50 effect choices, seven hands-on macro controls and the seven-band Bender EQ to iPhone and iPad. Add drive to a drum loop, movement to a synth or space around a melody, then shape the result to fit your track. FIND A STARTING POINT Choose from 51 factory presets: Default plus a starting sound for each of the 50 effects. A factory preset recalls a complete sound. Use the separate effect menu when you want to change the algorithm while keeping your other settings. CHOOSE YOUR CHARACTER Explore drive, digital textures, filters, chorus, flanging, phasing, tremolo, ring modulation, delay and reverb. Start with an effect, then turn Amount, Tone, Time, Mix, Dimension, Sparkle and Output to make it your own. SHAPE IT WITH BENDER EQ Follow seven colored band curves and their numbered handles. Select a band to adjust frequency, gain and Q directly. Use Fine for smaller graph movements, or lock dragging to frequency or gain. High-pass, low-pass and Prism controls give you more ways to shape the response. COMPARE AND KEEP YOUR IDEAS Use EQ A/B to compare two settings and copy a favorite into the other slot. Save the full sound as a preset and import or export preset documents when moving between your workflows. Each instance keeps its own sound in your host's project state. BUILT FOR TOUCH Move between Effects, Bender EQ and Advanced pages. Scroll to reach every control, enter a precise value or turn a textured macro knob. Switch Light or Dark directly from the touch header, or use the theme menu in Advanced. Your theme and settings return when the instance is restored. BRING IT INTO YOUR MUSIC WORKFLOW The included AUv3 audio effect extension loads in compatible hosts. The containing app also offers live input processing: connect headphones or an audio interface, then enable live input. Microphone permission is requested when you enable input. Your host manages audio when you use the extension. GO FURTHER Explore HoloRune character, spatial modes, EQ routing, parallel mix and Mid/Side levels in Advanced. Sidechain ducking requires a compatible host and a routed sidechain source.

About

Roboto AUv3 Singing Synth

Create synthesized singing voices by drawing melodies and typing lyrics. Offers ten distinct voice presets, extensive vocal parameter control, and automation curves. Export your creations as WAV audio or MIDI files.

Highlights
  • Piano roll melody editor
  • Lyric input per note
  • Ten voice presets
  • Vocal parameter automation
  • WAV audio export
  • MIDI file export
  • AUv3 and standalone support
Features
Read full description

Write a melody, type a word on each note, and Roboto sings it. A synthesized singing voice with ten presets, automation curves, WAV and MIDI export. AUv3 and standalone. Roboto is a singing voice synthesizer. Write a melody in the piano roll, type a word on each note, and Roboto sings it. No samples are used: the voice comes from a glottal pulse source, five formant resonators and shaped noise for the consonants. An animated robot face follows the voice with its LED eyes and mouth, next to a live waveform and the lyrics lit in time. PIANO ROLL AND LYRICS • Draw the melody in the piano roll and type a word on each note • A note named + sings the next syllable of the previous word • English words are turned into phonemes by built-in rules and a word list • Phonemes can be typed directly, for example S-T-R-IY-T • Select notes with a box, then move, duplicate, cut, copy and paste them • A note named - keeps singing the vowel before it at a new pitch • 23 built-in songs to try, in every language TEXT TAB • The whole song as text, one entry per note in the form word:note:beats • Type a song from scratch or paste one in LANGUAGES • Sings in English, German, French, Spanish, Japanese, Russian, Finnish, Swedish, Italian and Portuguese • Spelling rules for each language and vowels measured from native speakers VOICE • Ten voice presets: Default, Robot, Soprano, Bass, Child, Whisper, Choir, Opera, Giant, Alien • Transpose and tempo, with optional sync to the host • Glide: how fast the pitch slides between legato notes • Vibrato depth and rate, jitter and breath • Consonant level and length • Formant shift (vocal tract size) and formant bandwidth • Reverb and double track • Sliders show their value on the thumb, and above your finger while you drag AUTOMATION • Curves along the song for volume, pitch bend, vibrato depth, breath, formant shift and chorus • Curve points snap to the grid and are sized for touch • All voice parameters can be automated by the host MIDI • Keys from C1 upwards sing from the matching bar for as long as they are held • Keys on MIDI channel 2 change the sung pitch live without changing the words, sliding between keys at the Glide speed • Controllers drive volume, vibrato, breath, formant shift and chorus • Bluetooth MIDI in the standalone app EXPORT • WAV audio • MIDI file with notes, lyrics, tempo and the curves as controllers AUv3 + STANDALONE Run Roboto as a standalone app on iPhone and iPad, or as an AUv3 instrument inside any AUv3 host.

Screenshots

Sampledex Effect Shift4 screens
Roboto AUv3 Singing Synth1 screens

Verdict

The call

Sampledex Effect Shift and Roboto AUv3 Singing Synth are too close to call on the numbers: across 6 compared parameters — price, ads, in-app purchases and monetization model among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
Sampledex Effect Shift versus Roboto AUv3 Singing Synth: the parameters behind the verdict, then further details
ParameterSampledex Effect ShiftRoboto AUv3 Singing Synth
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews—33.3% of reviews
Number of ratings2 — better—
Update frequency—Every 9 days
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size13 MB18 MB
Age rating4+4+
DeveloperRobert ClemonsDiscoDSP LLC

In-app purchases

None

Sampledex Effect Shift

No in-app purchases

None

Roboto AUv3 Singing Synth

No in-app purchases

Questions

Is Sampledex Effect Shift free?
Sampledex Effect Shift is free to download, with no in-app purchases.
Is Roboto AUv3 Singing Synth free?
Roboto AUv3 Singing Synth is free to download, with no in-app purchases.
Do Sampledex Effect Shift or Roboto AUv3 Singing Synth have ads?
Neither Sampledex Effect Shift nor Roboto AUv3 Singing Synth shows ads.

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