Circlo vs Wave Slicer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Circlo
This app offers a unique ambient audiovisual experience with a pulsating circle display and a dynamic soundtrack that changes intensity throughout the day. Users can customize color schemes and control the music through a simple double-tap interface.
- Ambient audiovisual clock
- Dynamic soundtrack
- Pulsating circle display
- Customizable color schemes
- Music on/off toggle
- Intuitive double-tap controls
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Circlo is an ambient audiovisual clock. The ambient soundtrack by Hannu Kuosmanen changes depending on what time of day it is while the circles on the screen pulsate gently. The music is at its calmest around 1 am/pm, and gets more intense until the clock strikes 1 again. Double-tap anywhere to access the settings screen where you can change the color scheme and turn the music on or off. Design and programming by Johan Halin. Music by Hannu Kuosmanen. --- Johan Halin has also created Kontrol, an experimental techno composition that was shown in 2011 at the Museum of Modern Art in New York as part of the "Talk to Me" exhibition, and Revolve, an ambient reaction game.
Wave Slicer
Precisely cut audio samples by zooming to individual waveforms. Apply a full effect chain, draw custom amplitude envelopes, and create seamless loops. Export high-quality WAV files directly from your device.
- Precise waveform editing
- Full effect chain
- Custom amplitude envelopes
- Seamless loop creation
- High-quality WAV export
- Direct microphone recording
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Wave Slicer cuts a sound down to the piece you actually want. Load a track, record something, or send a file to it from anywhere on your phone — then zoom in until you can see the individual samples and cut exactly there. WHAT IT DOES A waveform that stays smooth on a ten-minute file and keeps going down to sample level. Drag the edges of a selection, slide the whole selection along, or draw a new one. Every edge snaps to a zero crossing, so a cut never clicks. A full effect chain that you hear while you turn it. Transpose by semitones, high-pass and low-pass with resonance, tanh saturation, bitcrush and sample rate reduction, echo with feedback, and a reverb that can ring out for eight seconds past the end of the slice. An amplitude envelope you draw by hand. Tap to add a point, drag to move it, bend the curve between two points. The same envelope drawing as the pitch curve in Drum Rack. Fades on both ends, and a loop crossfade that folds the tail over the head so a loop comes round without a seam. Export as a 16 or 24-bit WAV, with TPDF dither on 16-bit. The file lands where you choose to save it, named so you can find it again in a DAW browser. Record straight from the microphone when you want to sample something in the room. Echo cancellation and noise suppression stay off, because those are built for speech and ruin anything worth sampling. Twelve sounds are built in to start with, including two drum loops on the grid, so there is something to cut the moment you open it. WHAT IT DOES NOT DO No account. No sign-in. No advertising. No analytics. No tracking. Audio you load, record or export never leaves your device. The app asks the internet for exactly one thing: a small text file holding the current links shown on the last screen. FROM THE LAB Wave Slicer is part of Lumlux Art Lab, a set of free browser tools for people who make music. The same slicer runs on the website, so you can try it before installing anything. Made in Antwerp by FDR-Sound.
Screenshots
Verdict
The clearest difference is update cadence: Wave Slicer at every 4 days against Circlo's every 33 months. Circlo's advantage is ratings volume (5 vs 1) and iOS requirement (9.0 vs 15.0). On price, rating, ads and in-app purchases 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.
On the App Store both sit at effectively the same score — 5.0 for Circlo against 5.0 for Wave Slicer. That said, the two scores are not equally well evidenced: Circlo has 5 ratings behind it against 1, so its average is the more settled of the two.
Circlo ships an update every 33 months, Wave Slicer every 4 days. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.
| Parameter | Circlo | Wave Slicer |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | 1 |
| Update frequency | Every 33 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 14 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Aero Deko | Frank De Rop |
In-app purchases
Circlo
No in-app purchases
Wave Slicer
No in-app purchases









