Slow Player Lite vs By Ear PRO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Slow Player Lite
Learn new songs by adjusting playback speed and pitch without altering the original sound. This tool is ideal for musicians practicing instruments or anyone looking to improve their listening comprehension of foreign languages. It allows for precise control over playback sections and key.
- Adjust playback speed (75%-150%)
- Change musical key
- Set custom start and end times
- Real-time seeking
- Repeat phrases
- Speed and key changes without pausing
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This App is the Music Dictation Player and the fastest, and easiest way to learn new songs by slowing down or speeding up play back without changing the pitch! Works with guitar, bass, trumpet, piano, voice or any other instrument and 'learn by ear'. It can be used for the listening of the foreign language, too. Other features: - change speed without any change in pitch.(75% to 150%) - change key.(-6 to 6 semitone) - change start time, end time keeping length.(dragging the red range rectangle) - realtime seeking.(drag orange play button) - speed, key, start time, end time can change without music pause! - repeat phrases **Upgrade to full version to get the following features : - No Ads. - Change Speed.(50% - 200%) - Save Phrase. - Export AAC Format. **Warning - Does not work with DRM protected songs(m4p)
By Ear PRO
This app helps musicians transcribe songs by automatically analyzing chords from audio. It allows for slow playback of difficult phrases and visualizes chords on a piano roll for accurate copying. Users can also create their own transcriptions from scratch.
- AI chord analysis from audio
- Pitch-preserving slow playback
- Piano roll visualization of chords
- Freehand transcription with chord insertion
- Project saving and loading
- MIDI export
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"How do they play that part?" — this app answers it. Every musician hits the same wall sooner or later: working a song out by ear. A song with no sheet music. A phrase you love. That intro. By Ear PRO takes that wall down with four tools. 1. A head start on the chords Import a track and you get a first reading of the chord progression. Your ears still decide — you just don't have to start from nothing. 2. Slow playback that keeps the pitch Play a fast phrase slowly without it dropping in pitch. Combine it with AB repeat and you can loop the hard part as long as you like. 3. Work it out while you watch the piano roll The chords sit on a piano roll in front of you. See it, hear it, and correct it until it matches what you heard. 4. Start from a blank roll and write it yourself Enter notes at your own pace from nothing at all. Insert chords as you go and build the structure while you work. ABOUT THE PRO PLAN A one-time purchase with a permanent licence. Buy it once and there is nothing more to pay. No subscription and no renewal. PRO unlocks: - Saving and opening projects (.csp) - MIDI export (.mid) - Everything added to PRO in the future RESTORING AFTER A NEW DEVICE OR REINSTALL If you bought it before, tap "Restore purchase" in the app to get it back at no cost. As long as you are signed in with the same Apple ID, PRO works on the new device with nothing more to pay. PAYMENT - Charges are billed to your Apple ID. - PRO is enabled as soon as the purchase is confirmed. - Payment is handled through Apple's In-App Purchase. PRIVACY AND TERMS Privacy policy: https://tenmais.jp/privacy.php?lang=en Terms of use (Apple standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ This app does not sell or pass your personal information to anyone. See the privacy policy above for details. SUPPORT Questions and requests are welcome: https://tenmais.jp/contact/?lang=en Working a song out by ear is the best training there is for understanding music. We hope this app makes your musical life richer.
Screenshots
Verdict
The clearest difference is review sentiment: By Ear PRO at 100% against Slow Player Lite's 54%. Slow Player Lite's advantage is monetization model (free vs paid) and ads (none vs shown). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Slow Player Lite ships an update every 3 weeks, By Ear PRO every 3 months. The most recent releases landed on September 18, 2026 and October 1, 2026 respectively.
| Parameter | Slow Player Lite | By Ear PRO |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) — better | — |
| Positive reviews | 53.8% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks — better | Every 3 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 6.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 6 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | dotpico Inc. | Kenichi Ando |
Customer experience
Slow Player Lite
By Ear PRO
In-app purchases
Slow Player Lite
No in-app purchases
By Ear PRO
No in-app purchases









