Precision Strobe Tuner vs Slow Down Music | Transcribe+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Precision Strobe Tuner
This app provides a highly sensitive chromatic tuner for musical instruments. It features a radial spectrum display and a classic strobe tuner for precise pitch visualization. Ideal for instrument technicians and musicians seeking accurate tuning.
- Chromatic tuning
- Radial spectrum display
- Classic strobe tuner
- Programmable temperament function
- Piano tuning functions
- String inharmonicity characterization
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Precision Strobe Tuner 2.0 A General Purpose Chromatic Musical Instrument Tuner App with special Temperament and Piano Tuning Functions. The PST combines a radial Spectrum Display with a classic Strobe Tuner and Note Dial for an ultimate visualization of pitch and tone. The Strobe Display is highly sensitive with response speed that is practically instantaneous and has long been the preferred tool for piano tuners and instrument technicians. The central Spectrum Display shows the input spectrum wrapped around the Display, with each Octave drawn in a separate color. The Note Dial is marked like a clock with the twelve notes of the Scale. All overtones of the input are shown as peaks in the Spectrum Display pointing towards their corresponding Notes. The Fundamental Indicator Tic on the Spectrum Display shows the Note of the Fundamental along the Note Dial, with the color designating the Octave. Use the Spectrum Display for coarse adjustment by tuning the Fundamental to the center of the desired Note Indicator. As the input approaches the desired Note, a Two Group pinwheel pattern becomes visible rotating in the Strobe Display. Fine tuning is accomplished by adjusting to stop rotation. The Strobe Display responds instantaneously to changes in pitch and is extremely sensitive. The outside Strobe Display works just like a classic rotating disk strobe tuner. The Two-Group pattern rotates CCW when the input is flat, and CW when sharp. When the rotation is stopped, the note is in tune. The previews show a general strobe display demonstration, an example of using the calibration function to measure the accuracy of a tuning fork and an example of guitar string tuning. The first screenshot shows the display tuning a Guitar Low E string. The Fundamental appears as an Orange peak in the Spectrum Display. This string rings bright, so the overtones are also dominant in the Display. The second screenshot shows the display for an E 440 Tuning Fork with the Calibration Dial enabled and adjusted. This Fork is 2.9 cent Flat. The PST also includes a Programmable Temperament Function with 5 user definable banks. The third screenshot shows an example of a Temperament Bank set up to a typical Piano Stretch Curve. This can also be used for tuning alternate temperaments, pedal steel guitar setups, or special guitar intonation systems. In addition, there are several Special Measurement Banks used for String Inharmonicity characterization and Piano Stretch Curve Estimation. Individual strings can be characterized by measuring the Fundamental and 2nd Harmonic separately. By careful selection of a few representative measurement points, a reasonable smooth fit Piano Stretch Curve can be generated. Any number of measurements can be used. The final screenshot shows the Input Signal Scope/Spectrum Display Page. The Detailed Operation Manual can be viewed here: www.precisionstrobe.com
Slow Down Music | Transcribe+
This app allows musicians to slow down and change the pitch of songs to aid in transcription and practice. It uses AI to separate instruments, offers customizable looping, and supports various chord chart formats.
- AI instrument separation (vocals, drums, bass, guitar, piano)
- Adjustable tempo and pitch
- Customizable looping and practice sections
- Import and sync chord charts
- Interactive waveform scrubbing
- Video loading for visual aid
- 10-band EQ and channel mixer
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Transcribe+ combines high quality tempo and pitch-shifting with on-device AI that splits a song into vocals, drums, bass, guitar, piano, and other instruments, so you can isolate and hear EXACTLY what you are transcribing by ear. Now on iPhone, iPad, and Mac! Adjust speed and pitch effortlessly with simple swipe gestures. Tap the waveform to pause the track, then drag to listen at your chosen pace, even one note at a time! Attach chord charts that follow the form of the song, mark song structures or add personal notes using customizable flags on the waveform, and practice specific sections repeatedly by defining looped areas. Key Features: • Speed adjustable from 0.25x to 2x without affecting pitch. • Split tracks into 2, 4, or 6 stems (vocals, drums, bass, guitar, piano, other). • Easy pitch modification by +/-12 semitones. • Fine-tune pitch adjustment slider with 1 cent increments. • Interactive waveform interface for real-time scrubbing and listening note by note. • Chord charts from MusicXML, ABC, iReal Pro, or pasted text. • Beats, bars, tempo, and key detected automatically. • Consolidate and practice loops in a single location with Loop View. • Smart Loops can automatically increase speed or shift pitch with each loop. • Load videos for enhanced visual understanding. • Intuitive 10-band EQ toolbar for refined frequency adjustment and additional isolation possibilities. • Mark and annotate waveforms for efficient review. • Easily export loops or entire tracks in eight formats. • Multiple windows and split-screen multitasking for efficient iPad use. • 11 attractive themes with elegant icons. • Keyboard shortcuts compatible with foot pedals for easier control during practice. • Integration with popular cloud storage services. AI Vocal Removal & Stems Separation: Remove or isolate vocals, drums, bass, guitar, piano, or other instruments on ANY track (without DRM). Use this feature to focus on the instruments you're interested in, or create a play-along track. Stems are split entirely on your device, with no uploading and no limits. If an instrument isn't in the song, its stem is hidden instead of filled with leftover noise. Export any combinations of stems and remix them as you like! Chord Charts: Import common chord chart formats you find online. The chord changes run under the waveform, following the actual form of the song. Transcribe+ listens to the whole song on your device and suggests the exact beat where the form starts. If a bar is stretched or squeezed, or the song is heard at double or half tempo, it offers a one-tap fix. Loop View with "Smart Loops": View all your loops in the loop view. Simply tap the loop icon to start or stop a loop. You can set parameters for a metronome count-in before each loop or auto-increase speed or shift pitch with each repetition. Link loops as you learn, starting with small chunks and joining them together with a tap. EQ ToolBar, Channel Mixer, and Fine Tuning Slider: Further isolate or enhance the part you're listening to with the EQ toolbar or the Stereo Channel mixer. You can also finely adjust the overall pitch of the track in increments of 1 cent. Transcribe+ for Mac: Transcribe+ now runs on the Mac, with a full menu bar, keyboard shortcuts, and all of the same features. Apple Music Support: Transcribe+ integrates with Apple Music, letting you adjust the tempo and add flags and loops to any song in your Apple Music library. Please note, due to DRM music streaming limitations, some features are unavailable on Apple Music tracks. iCloud Sync: All of your flags, loops, chord charts, and settings for each track you load are automatically saved to iCloud. These settings also sync automatically across all your devices. Six stems require a device with 8 GB of memory or more; other devices split 4 stems. Beat detection and chord charts require iOS 27 or macOS 27. Terms of Use: https://dynamicappdesign.com/tos.html
Screenshots
Verdict
The clearest difference is price: Slow Down Music | Transcribe+ at Free against Precision Strobe Tuner's $9.99. Slow Down Music | Transcribe+ also leads on update cadence (every 8 days vs every 4 months) and ratings volume (5.4K vs 56). Precision Strobe Tuner's advantage is in-app purchases (none vs 4) and review sentiment (79% vs 64%). On rating, ads 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
Slow Down Music | Transcribe+ is free to download; Precision Strobe Tuner costs $9.99 up front. Slow Down Music | Transcribe+ sells 4 in-app purchases, starting at $9.99 per month. Precision Strobe Tuner asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.6 for Precision Strobe Tuner against 4.5 for Slow Down Music | Transcribe+. That said, the two scores are not equally well evidenced: Slow Down Music | Transcribe+ has 5.4K ratings behind it against 56, so its average is the more settled of the two. Written reviews are what separate them: 79% of Precision Strobe Tuner's written reviews are positive against 64% of Slow Down Music | Transcribe+'s.
Precision Strobe Tuner ships an update every 4 months, Slow Down Music | Transcribe+ every 8 days. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.
| Parameter | Precision Strobe Tuner | Slow Down Music | Transcribe+ |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 4.6 (56 ratings) — better | 4.5 (5.4K ratings) |
| Positive reviews | 79.1% of reviews — better | 64.0% of reviews |
| Number of ratings | 56 | 5.4K — better |
| Update frequency | Every 4 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Freemium — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 12.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 2 MB | 357 MB |
| Age rating | 4+ | 4+ |
| Developer | Jim Campbell | Dynamic App Design LLC |
Customer experience
Precision Strobe Tuner
Slow Down Music | Transcribe+
Bugs and requests
Precision Strobe Tuner
Not enough reviews yet to summarise bugs or requests.
Slow Down Music | Transcribe+
Reported bugs
4 issues- Playback issues with DRM-protected tracks
- Crashes when trying to export loops
- Inconsistent behavior when scrolling and scrubbing
- Inability to delete individual songs from recent list
Requested features
5 requests- Ability to save and manage custom loops and flags
- Metronome or beat detection feature
- Deeper integration with streaming services like Spotify
- More precise control over pitch and speed adjustments
- Improved audio isolation and separation of instruments
In-app purchases
Precision Strobe Tuner
No in-app purchases
Slow Down Music | Transcribe+
- Transcribe+ Premium Monthly$9.991 Month
- Transcribe+ Premium Yearly7 Days trial$39.991 Year
- Unlock Everything$79.99
- Unlock Everything$99.99
Questions
Is Precision Strobe Tuner free?
Is Slow Down Music | Transcribe+ free?
Which has better reviews, Precision Strobe Tuner or Slow Down Music | Transcribe+?
Do Precision Strobe Tuner or Slow Down Music | Transcribe+ have ads?
Which is updated more often, Precision Strobe Tuner or Slow Down Music | Transcribe+?
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