# Crisp: Water Eject — Speaker Cleaner & Tone Test

> Speaker Cleaner & Tone Test (iPhone/iPad app by ZHENGQIAO JIANG.)

- Source: https://appshunter.io/ios/app/crisp-water-eject/id6767547524 (this page in markdown: same URL + `.md`)
- Developer: [ZHENGQIAO JIANG](https://appshunter.io/developer/1892168889)
- Category: Utilities, Music
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 2 MB
- Languages: American English, Arabic, French (France), German (Germany), Italian, Japanese, Korean, Malay, Brazilian Portuguese, Russian and 2 more
- Released: 2026-05-11
- Data updated: 2026-10-02
- User reviews in markdown: https://appshunter.io/ios/app/crisp-water-eject/id6767547524/reviews.md

## What is Crisp?

Clear water. Test your speaker. Verify the result.
Crisp uses targeted sound frequencies to help eject trapped water and dislodge dust from iPhone and iPad speakers. Then it listens with the microphone to compare real Before/After dB measurements—so you can check the result instead of guessing.

NO ADS. NO ACCOUNTS. 100% OFFLINE.

Is my data private?
Everything runs on your device. Nothing leaves your iPhone or iPad. No accounts, no analytics, no ads, no tracking.

How do I get started?
1. Place your device face down on a soft surface
2. Set volume to maximum
3. Tap Start Eject and wait 3 minutes

What can I do with it?
- Eject trapped water using a 165Hz tone, or switch to Dust mode to shake out lint and debris
- Choose Normal, Turbo, or Deep intensity for a faster or more thorough clean
- Find your phone's exact speaker resonance point with Resonance Finder for a stronger clean
- Compare a real Before/After dB reading, not just a guess, to confirm the cycle worked
- Generate any tone from 20Hz to 22kHz — up to 30kHz in Ultrasonic mode — with sine, square, triangle, or sawtooth waveforms
- Test speaker frequency response with bass (80Hz), mid (1kHz), and treble (8kHz) presets
- Run stereo balance (left/right) tests on stereo-capable devices
- Check your microphone for blockages with a one-tap diagnostic
- Measure ambient sound level with the built-in dB meter
- Sweep frequencies automatically to dislodge stubborn dust particles
- Take a structured hearing test across the audible range and save your audiogram
- Save your favorite frequencies for one-tap recall
- Set a cleaning reminder and track your streak over the past 7 days
- Ask Siri to eject water, hands-free
- 100% no ads, ever — most speaker-cleaning apps are free with ads until you subscribe; Crisp never shows one

What devices does it work on?
iPhone or iPad running iOS 17 or later. The same audio principles work on any built-in speaker.

Why use Crisp?
Speaker grilles trap moisture from sweat, rain, pool splashes, and humidity. Dust and pocket lint accumulate over time. Crisp uses sound vibration — the same technique built into Apple Watch — to physically dislodge particles without opening your device or using cleaning tools that can damage internal components.

Does it really work?
Sound vibration ejection is a well-documented technique. Results depend on how much water is trapped and how recently. For best results, run the cycle within an hour of water exposure, repeat 2 to 3 times, and keep the device face down throughout.

How much does it cost?
Download free. Optional Crisp Pro plans and any eligible introductory offer are shown in the app using your local App Store price. You can manage or cancel subscriptions anytime in Settings.

Terms of Use: https://taxlite.net/crisp/terms.html
Privacy Policy: https://taxlite.net/crisp/privacy.html

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Weekly | $1.99 | per 7 days |
| Monthly | $4.99 | per month |
| Yearly | $29.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime | $79.99 | one-time |



## Version history (last 4 releases)

### 1.3.0 — 2026-09-15

Crisp 1.3 — real proof it worked, plus iPad support.

• Before / After now shows a real dB comparison, not just a guess
• Microphone Test: check if your mic is blocked or covered
• New full-screen slide-to-tune dial with live waveform visualization
• 7-day cleaning streak tracker in Settings
• iPad support, with landscape layouts across every tab

Still 100% on-device, no ads, nothing you do here ever leaves your device.

### 1.2.0 — 2026-07-10

Crisp 1.2 — a much bigger speaker toolkit.

• Hearing Test: a pure-tone check for each ear with a saved audiogram
• Dust mode: high-frequency cleaning to shake out lint and dust
• Turbo and Deep intensity for a stronger or longer clean
• Resonance Finder: tune to your phone's loudest point
• Before / After check to hear the difference a cycle makes
• Sound Level Meter (dB) in Speaker Test
• Cleaning reminders so your speakers stay clear
• Ultrasonic mode for tones up to 30 kHz on supported devices
• Ask Siri to eject water, hands-free

Still 100% on-device — nothing you do here ever leaves your iPhone.

### 1.1.0 — 2026-05-13

Welcome to Crisp!

• 165Hz water eject mode with 3-minute auto cycle
• Frequency generator: 20Hz to 22kHz, four waveforms
• Speaker test: bass, mid, treble, full range, stereo balance
• Auto-sweep mode for dust removal
• Save and recall your favorite frequencies
• Background playback with Lock Screen controls
• 100% offline — no data collection, no ads, no tracking

Start with a 3-day free trial.

### 1.0 — 2026-05-11

No release notes.

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All apps by ZHENGQIAO JIANG: https://appshunter.io/developer/1892168889

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-02.*