Comparison

apeCsound vs Vectorscope 2

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

Head to head
About

apeCsound

Features
Read full description

apeCsound brings the full power of Csound 7, one of the most complete sound synthesis and signal processing languages ever created, inside your music apps. Write or paste any Csound orchestra, press Apply, and apeCsound turns it into an Audio Unit (AUv3) instrument or effect you can play, record and automate in GarageBand, Logic Pro for iPad, AUM, Cubasis, Loopy Pro and any other AUv3 host. It also runs as a standalone app. THE CSOUND ENGINE, BUILT IN Csound 7 is embedded in the app: nothing else to install Thousands of opcodes: oscillators, filters, physical models, granular, spectral (pvs), FM, waveguides, reverbs, delays, OSC and much more Process live audio from the host as an effect, or play it as a MIDI instrument Audio channels follow the host layout automatically Host transport available to your code as control channels: tempo, play/stop, position, time signature PARAMETERS YOUR HOST CAN AUTOMATE Describe sliders, switches, menus and XY pads directly in your .csd file apeCsound builds the control panel for you and exposes every parameter (176 in all) to the host for automation and MIDI learn Values are read in Csound with a simple chnget; chnset writes them back and moves the controls Organise the panel in collapsible groups with a comment in the code Snapshots: save, recall, rename and overwrite complete sets of values, stored with the session Undo and redo for every change, with one shared history LIVE CODING Evaluate sends the selection, the current instrument block or a single line to the running engine, without recompiling: redefine an instrument while it plays, change a global value, trigger a score event A dedicated Evaluate line for one-liners such as "i 2 0 1" SEE WHAT YOUR CODE IS DOING Monitor: every value written with chnset appears as a meter, a multi-bar card or a text line, with dB scale and history on request Channels: a diagnostic list of every channel the engine knows, with type, direction, value and who writes it; channels that nobody writes are flagged and can be mapped to a parameter in one tap Graphs: function tables and display signals drawn live, redrawn whenever a table changes Console: all Csound messages and errors, with errors marked on the line in the editor A CODE EDITOR MADE FOR CSOUND Syntax highlighting with dark and light themes, line numbers and adjustable text size Opcode completion that inserts the complete syntax, with outputs and optional arguments, in classic or modern (functional) style Jump between arguments with Tab Inline help bar showing the syntax of the opcode under the cursor, or the error on that line Find and replace, comment/uncomment, smart indentation Designed for touch: native-style selection handles, magnifier, edit menu and long-press caret navigation Built-in link to the Csound reference manual SESSIONS AND FILES Open and save standard .csd files from Files, iCloud Drive or any document provider Your code, parameters and snapshots are saved with the host project Start from a ready-made template, a blank session or one of nearly 200 included examples Import Cabbage and CsoundQt files: their widgets become parameters, their meters and displays show up in the Monitor ACCESSIBILITY Fully usable with VoiceOver: named controls, real menus, an accessible code editor and XY pad, complete keyboard navigation Whether you are a sound designer, a composer, a teacher or a student, apeCsound turns your iPad and iPhone into a complete Csound workstation that lives inside your favourite music apps.

About

Vectorscope 2

Visualize your stereo audio signals in real-time. Understand stereo width, phase relationships, and channel balance through intuitive X/Y and Polar displays. Analyze your mix's mono compatibility and overall energy distribution.

Highlights
  • Stereo field visualization
  • X/Y and Polar display modes
  • Correlation meter
  • Balance meter
  • Peak and RMS level meters
  • AUv3 plugin support
Features
Read full description

See your stereo field. Vectorscope 2 shows the shape of a stereo signal as you hear it: how wide it is, where it leans and whether its channels work together or cancel each other out. Rebuilt from the ground up, it runs as an Audio Unit (AUv3) inside GarageBand, AUM, Logic Pro and any other host, and on its own with your device's microphone or an audio interface. TWO VIEWS OF THE SAME SOUND • X/Y: the classic Lissajous display. Mono sits on the vertical axis, wide material spreads across the diamond, and a signal out of phase turns sideways. • Polar: the half-disc view, with left, center and right laid out as you'd place them in a mix. • Short or long trail, automatic or fixed zoom, and four trace colors. METERS THAT TELL THE REST • Correlation, from +1 (mono-compatible) to −1 (out of phase), so you catch phase problems before they reach a mono speaker. • Balance, so you know where the energy sits between left and right. • Peak and RMS level meters with held peaks and clip indicators. Tap to reset. • A notice when the input is mono, so a single vertical line never looks like a broken meter. MADE FOR EVERY SCREEN Vectorscope 2 lays itself out for the space it's given: an iPhone upright or sideways, an iPad, iPhone Duo folded or open, and a plugin slot in a host, from GarageBand's compact strip to its expanded view. QUIET BY DEFAULT On its own, the app starts with its output muted, so the microphone never feeds back through the speaker next to it. As a plugin it passes your audio through untouched. From Monolith DSP. Terms of Use: https://monolith-dsp.com/terms/ Privacy Policy: https://monolith-dsp.com/privacy/

Screenshots

Vectorscope 24 screens

Verdict

The call

The clearest difference is update cadence: apeCsound at every 2 days against Vectorscope 2's every 8 days. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

apeCsound ships an update every 2 days, Vectorscope 2 every 8 days. The most recent releases landed on November 10, 2026 and November 13, 2026 respectively.

Scorecard1 real difference · 9 level
apeCsound versus Vectorscope 2: the parameters behind the verdict, then further details
ParameterapeCsoundVectorscope 2
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 2 days — betterEvery 8 days
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPadiPhone, iPad — better
Requires iOS1717.0
Further details — not scored
Size33 MB44 MB
Age rating4+4+
DeveloperapeSoftRuben Nine Blanco

In-app purchases

None

apeCsound

No in-app purchases

None

Vectorscope 2

No in-app purchases

Questions

Is apeCsound free?
apeCsound is free to download, with no in-app purchases.
Is Vectorscope 2 free?
Vectorscope 2 is free to download, with no in-app purchases.
Do apeCsound or Vectorscope 2 have ads?
Neither apeCsound nor Vectorscope 2 shows ads.
Which is updated more often, apeCsound or Vectorscope 2?
apeCsound ships an update every 2 days, and Vectorscope 2 every 8 days. Most recently, apeCsound was updated on November 10, 2026 and Vectorscope 2 on November 13, 2026.

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