RTPListen vs Crop audio
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
RTPListen
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If you are not a developer debugging RTP audio, this app probably isn't for you. Specify a multicast address if you want to listen to a multicast RTP session. Specify an allowed sender if you want to filter inbound packets by sender IP address.
Crop audio
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Crop audio is a simple audio editing tool that lets you precisely cut exactly the part you want from audio files and even adjust the volume. Without any complex editing software, just a few taps allow you to crop MP3 and WAV files to your desired range and immediately save or share them. Use it for various purposes, such as ringtones, alarm sounds, social media clips, or extracting parts of lecture and meeting recordings. β Key Features Β· Waveform Visualizer When you load an audio file, the full waveform unfolds on the screen, letting you visually check loud and quiet parts to decide where to cut. Β· Precise Range Selection (Crop) Drag the sliders to freely adjust the start and end points. The selected range is highlighted in color right on the waveform. Β· Volume Adjustment Boost or lower the volume as much as you need, from 0.1x to 3.0x. Easily adjust tracks that were recorded too quietly or too loudly. Β· Preview with Play / Pause / Stop Before exporting, you can preview the selected range with the adjusted volume applied. Freely play, pause, and stop to make sure it's exactly what you want. Β· Fast Export & Share Once editing is done, you can instantly save it as a file or share it with other apps. β Recommended For - Anyone who wants to extract a short clip from a long track to use as a ringtone or alarm. - Anyone looking to extract specific parts from lectures, meetings, or interview recordings. - Anyone who needs to trim audio clips short for social media uploads. - Anyone who needs to adjust a track because the volume is too quiet or too loud. β Supported Formats Supports MP3 and WAV files. Get your audio editing done quickly and effortlessly with Crop audioβsimple, yet packed with all the essential features you need!
Screenshots
Verdict
The clearest difference is ads: RTPListen at none against Crop audio's shown. RTPListen also leads on update cadence (daily vs every 2 months). Crop audio's advantage is iOS requirement (15.0 vs 18.1). On price, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
RTPListen ships an update daily, Crop audio every 2 months. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | RTPListen | Crop audio |
|---|---|---|
| Price | Free | Free |
| Update frequency | Daily β better | Every 2 months |
| Ads | No β better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, iPod β better |
| Requires iOS | 18.1 | 15.0 β better |
| Further details β not scored | ||
| Size | 1 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | Peter Whiting | JAEMIN LEE |
In-app purchases
RTPListen
No in-app purchases
Crop audio
No in-app purchases









