Comparison

Echochops vs Sphere Flow Pocket

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

Head to head
About

Echochops

This app creates a feedback delay effect on sounds from your device's microphone, mimicking an echo. It allows for creative musical patterns and ambient sound experiences through adjustable delay times and filters. Experiment with various audio effects for both musical and experimental purposes.

Highlights
  • Adjustable delay time up to 60 seconds
  • Feedback rate control
  • Four audio filter types
  • Parameter control via tilt and rotation
  • Glitch and Funny delay modes
  • Background audio playback
Features
Read full description

The extreme delay machine that you've never heard before. In short: This is a Karaoke echo machine. Words spoken in the iPhone's microphone will come back a few seconds later. It's like the echo effect you can hear at a mountain. You can get various kinds of effects by changing the delay time and the feedback rate. To make music: Tap on the table - it sounds like "tock"......"tock"....."tock"..... Clap your hands - you'll hear "tock", "clap", "tock", "clap", "tock", "clap"... You can produce simple musical patterns this way. Daily life use: Leave it as it is. It's fun to hear repeating sounds of ordinary life. You can use the stereo headset with the mic. Take a walk with the iPhone in your pocket and enjoy the repeating sounds around you. In detail: "Echochops" produces a feedback delay effect (an echo effect) on the sounds from the iPhone's microphone. The feedback delay is widely used to produce rich vocal and guitar sounds. It is also used as a special kind of musical performance. You can use "Echochops" not only as a "musical" application but also as a "noisy" experiment. Features: - Input and output level meter - Input and output level setting - Delay time setting, within 60 seconds. - Feedback rate setting, from 0% to 100% - Direct and Delay balance setting - Four types of audio filters (Lowpass, Highpass, Bandpass, Notch) - Audio filter frequency setting - Audio filer Q setting - Parameter control by audio input/output levels - Parameter control by tilting - Parameter control by rotating (a compass-equipped device only) - Mode setting to change delay time, "Glitch" or "Funny". - Output route setting, headphone/receiver or speaker. - Tilt angle setting for controlling - Upside-down portrait mode for efficient use of microphone and speaker - Delayed sound can be erased - Works with iPod audio simultaneously - Background audio playback (iOS 4.0 and later) [[ ATTENTIONS ]] Due to a latency of an audio input and output, the actual delaying time will be slightly longer than the setting. A natural feedback through the air may happen because the microphone and speaker are placed closely on the iPhone. Distorted sounds or harsh grating noises will be produced depending of the setting of parameters. It would be better NOT to use this application if you cannot stand noisy sounds. [[ Address of Gratitude ]] Thanks to Mr. Kaoru Sato (EP-4)

About

Sphere Flow Pocket

Read full description

Sphere Flow Pocket turns your iPhone into a 3D panning controller for immersive audio. Hold the glowing sphere on screen and move your iPhone through the air — the audio object in your DAW follows in real time, at full floating-point resolution. Let go and it stays. Reach a wall and you feel it click in your hand. No MIDI mapping, no mouse. Just move. HOW IT WORKS Sphere Flow Pocket connects over your local Wi-Fi network to the free companion AAX plug-ins for Avid Pro Tools. Insert SphereReceiver on a mono or stereo track — or SphereConstellation on a 5.1, 7.1, 7.1.2, 7.1.4 or 9.1.6 stem — and your motion is rendered in real time while every move is recorded as plug-in automation. Plug-in instances on your network are discovered automatically and appear in a one-tap menu. Communication is built on the open ADM-OSC standard. Full setup guide and plug-in download: reminitone.com/products/sphere-flow A CONTROLLER, NOT A SCREEN Pocket is designed to be used blind. Keep your eyes on your DAW: the iPhone in your hand is the controller, and haptics tell you what you cannot see — a tap when you grab, a knock when you hit a wall, a faint rumble as you slide along it, a click when the sphere snaps into place. Position is relative: every time you hold the sphere, the motion starts from where it is now, so you never have to reach across the room. FREE • Mono panning — unlimited, forever • Haptic walls, floor and ceiling • Wall Snap • CENTER — bring the sphere back to the middle of the room in one tap • Adjustable motion range: 20 to 80 cm of iPhone travel across the full stage PRO (one-time purchase, 7-day free trial) • Stereo — two spheres, front and back on screen; swap targets with one tap • Constellation — take an entire 5.1, 7.1, 7.1.2, 7.1.4 or 9.1.6 stem as one object. Move it with your hand, turn and tilt it with your wrist, scale it with a slider or by dragging while you hold. Lock rotation or scale to protect what you have already written, reset either with one tap • Physics — Throw with a swipe (the sphere flies the way you were moving), Gravity, Bounce. Every bounce is felt in your hand and recorded as automation Try everything free for 7 days, then unlock once to keep it. Mono panning stays free whether or not you buy. BUILT FOR ENGINEERS • 6DoF motion tracking — real position in the room, not just tilt • Float resolution over OSC — no 7-bit MIDI stepping • 60 Hz position updates for dense, smooth automation • Automatic discovery via Bonjour, manual IP connection as fallback • Tracking-loss protection: the sphere freezes instead of jumping when tracking degrades REQUIREMENTS Sphere Flow Pocket requires the free companion plug-ins (AAX, for Avid Pro Tools) running on a computer on the same network: SphereReceiver for mono/stereo tracks, SphereConstellation for 5.1, 7.1, 7.1.2, 7.1.4 and 9.1.6 stems. Download and documentation at reminitone.com/products/sphere-flow. Motion tracking uses the rear camera; no images are stored or transmitted. Also available: Sphere Flow for Apple Vision Pro — the same system, with your hands as the controller. Dolby Atmos is a trademark of Dolby Laboratories. Pro Tools is a trademark of Avid Technology, Inc. Sphere Flow Pocket is an independent product of reminitone and is not affiliated with or endorsed by Dolby Laboratories, Avid Technology, or Apple Inc.

Screenshots

Echochops4 screens
Sphere Flow Pocket4 screens

Verdict

The call

The clearest difference is price: Sphere Flow Pocket at Free against Echochops's $0.99. Sphere Flow Pocket also leads on update cadence (daily vs every 15 months). Echochops's advantage is in-app purchases (none vs 2) and device support (3 vs 1). On ads and iOS requirement 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

Sphere Flow Pocket is free to download; Echochops costs $0.99 up front. Sphere Flow Pocket sells 2 one-off in-app purchases. Echochops asks for nothing beyond the download.

UpkeepUpdate frequency

Echochops ships an update every 15 months, Sphere Flow Pocket daily. The most recent releases landed on October 11, 2026 and October 4, 2026 respectively.

Scorecard4 real differences · 6 level
Echochops versus Sphere Flow Pocket: the parameters behind the verdict, then further details
ParameterEchochopsSphere Flow Pocket
Price$0.99Free — better
Rating3.6 (5 ratings) — better—
Positive reviews62.5% of reviews—
Number of ratings5 — better—
Update frequencyEvery 15 monthsDaily — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, Vision Pro — betteriPhone
Requires iOS16.0 — better17.0
Further details — not scored
Size1 MB2 MB
Age rating4+4+
DeveloperMasayuki AkamatsuYujiro Yonetsu

In-app purchases

None

Echochops

No in-app purchases

2 purchases

Sphere Flow Pocket

One-time2
  • 7-Day TrialFree
  • Sphere Flow Pocket Pro$39.99

Questions

Is Echochops free?
Echochops costs $0.99, with no in-app purchases.
Is Sphere Flow Pocket free?
Sphere Flow Pocket is free to download, with in-app purchases available.
Do Echochops or Sphere Flow Pocket have ads?
Neither Echochops nor Sphere Flow Pocket shows ads.
Which is updated more often, Echochops or Sphere Flow Pocket?
Echochops ships an update every 15 months, and Sphere Flow Pocket daily. Most recently, Echochops was updated on October 11, 2026 and Sphere Flow Pocket on October 4, 2026.

Other comparisons