MP3 Trimmer vs Session
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MP3 Trimmer
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MP3 Trimmer helps you cut audio into the exact section you want to keep. Import a clip from Photos, Files, or a direct URL, then use the waveform editor to choose the start and end points before saving the result. The app is built for practical audio edits: shortening a recording, cutting a song section, preparing a sound bite, cleaning up a voice note, or keeping only the useful part of a longer file. You can preview the selected range, switch between regular cut and middle cut, and make small adjustments with zoom, playback controls, and undo or redo. Edit Audio With Control - Import audio from Photos, Files, or URL - Trim with draggable waveform handles - Use regular cut or middle cut mode - Zoom into the waveform for finer timing - Preview playback before exporting - Undo or redo trim changes while editing Adjust the Output - Change volume before saving - Adjust tempo when needed - Add fade in and fade out - Choose output quality options - Save the finished audio file - Share the result from the export screen Keep Your Clips Organized - View saved audio in History - Preview previous exports - Rename saved clips - Share or delete saved files - Reopen a saved clip for another edit MP3 Trimmer works well for audio notes, music snippets, ringtone-style clips, podcast cuts, study recordings, voice memos, and quick social media sound edits. Most editing happens on your device after you choose the source file. URL import requires network access to download the audio. MP3 Trimmer is free to use. Optional Pro access removes ads, unlocks unlimited trims, and enables all output options. Terms of Use: https://alderpathstudio.github.io/MP3-Trimmer/term-of-use.html Privacy Policy: https://alderpathstudio.github.io/MP3-Trimmer/privacy-policy.html
Session
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Your offline practice room. Any song → your speed, your key, no lead vocals — everything runs on your iPhone, nothing is uploaded, and it's completely free. REMOVE VOCALS — OR KEEP ONLY THEM On-device AI splits any song into vocals and backing. Practice with a clean instrumental, or solo the vocal to study the phrasing. Works with audio files and videos. SLOW DOWN WITHOUT CHANGING PITCH 50–150% speed with clean time-stretching. Step-Up Tempo raises the speed a little every loop — the classic way to master a hard passage. CHANGE THE KEY ±12 semitones in real time. Session detects the song's key and shows you where your transposition lands. LOOP EXACTLY THE RIGHT BARS Drag precise A-B handles on the waveform, snap them to the detected beat, and save named sections (verse, chorus…) to jump between. EXPORT YOUR PRACTICE MIX Export audio — or the original video with your slowed, re-keyed, vocal-free mix, picture retimed to stay in sync. Save straight to Photos. PRIVATE BY DESIGN No account. No cloud. No upload. Your music never leaves your phone — and there's no monthly fee, no usage quota, no catch. Made by the developer of TakeCover Studio.
Screenshots
Verdict
The clearest difference is in-app purchases: Session at none against MP3 Trimmer's 4. Session also leads on ads (none vs shown). MP3 Trimmer's advantage is iOS requirement (16.0 vs 18.0). On price and device support 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. MP3 Trimmer sells 4 in-app purchases, starting at $2.99 per 7 days. Session asks for nothing beyond the download.
| Parameter | MP3 Trimmer | Session |
|---|---|---|
| Price | Free | Free |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 40 MB | 92 MB |
| Age rating | 4+ | 4+ |
| Developer | Jeny Goentoro | Sheng-Hsin Kang |
In-app purchases
MP3 Trimmer
- 1W$2.997 Days
- 1M$5.991 Month
- 1Y3 Days trial$29.991 Year
- Pro$49.99
Session
No in-app purchases








