TOPLAPapp vs plugdata
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TOPLAPapp
This app offers a unique sonic puzzle experience using a virtual machine for sound synthesis. Users control the machine by placing command letters and adjusting parameter sliders to generate experimental, often noisy, electronic music.
- Virtual machine for sound synthesis
- Instruction-based sound generation
- Parameter sliders for sound control
- Grid-based command placement
- Experimental sonic art focus
- Live coding principles
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TOPLAPapp is a sonic puzzle based around a virtual machine for sound synthesis. This machine accepts a few valid instructions represented by the letters T, O, P, L, A, and p, and you control it by placing each command letter within a grid, along with setting some associated parameter sliders. The machine rushes through the instruction set to create output sounds, which are usually of a somewhat noisy character, hopefully interestingly so. The historical antecedents include instruction synthesis as pioneered at the Institute of Sonology in the 1970s, and the live coding movement, of modifying a running program as it acts. This app is intended for those interested in more experimental sonic art: don't download unless you are open to stranger computer music sounds ((http://www.toplap.org).
plugdata
This app provides a visual programming environment for audio experimentation, prototyping, and education. It allows users to create and run audio patches on their mobile devices, enabling creative sound design on the go.
- Visual programming environment
- Audio experimentation
- Prototyping
- Educational tool
- Standalone application
- Audio plugins
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plugdata is visual programming environment for audio experimentation, prototyping and education. With plugdata for iOS, you can bring your plugdata patches with you everywhere you go. This app ships with a standalone application and audio plugins.
Screenshots
Verdict
The clearest difference is review sentiment: TOPLAPapp at 95% against plugdata's 63%. TOPLAPapp also leads on rating (4.8 vs 4.4) and iOS requirement (7.0 vs 12.0). plugdata's advantage is update cadence (every 3 months vs every 49 months) and ratings volume (17 vs 4). On price, ads, in-app purchases and monetization model 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
TOPLAPapp holds the better App Store score, 4.8 against 4.4. Both are backed by a comparable volume of ratings — 4 and 17 respectively. Written reviews point the same way: 95% of TOPLAPapp's written reviews are positive against 63% of plugdata's.
TOPLAPapp ships an update every 49 months, plugdata every 3 months. The most recent releases landed on September 24, 2026 and October 9, 2026 respectively.
| Parameter | TOPLAPapp | plugdata |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (4 ratings) — better | 4.4 (17 ratings) |
| Positive reviews | 95.5% of reviews — better | 63.2% of reviews |
| Number of ratings | 4 | 17 — better |
| Update frequency | Every 49 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 7.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 0 MB | 147 MB |
| Age rating | 4+ | 4+ |
| Developer | Joshua Parmenter | Timothy Schoen |
Customer experience
TOPLAPapp
plugdata
In-app purchases
TOPLAPapp
No in-app purchases
plugdata
No in-app purchases
