Fretboard Trainer 1.0

Cons

• Feature set is limited — only a few specific frets and an octave-shapes mode (additional fret modes are paid), so advanced or full-neck training is constrained unless all IAPs are purchased.
• In-app purchases required to unlock some practice areas, which fragments the experience and may be inconvenient for users wanting full access up front.
• Privacy disclosure is incomplete in the App Store listing (developer hadn’t provided privacy details to Apple at the time of listing), which may concern users because the app uses the microphone.
• Very small number of public ratings (3) and a middling average rating (3.0/5) — limited social proof and unclear overall user satisfaction.
• Possible reliability issues with microphone-based pitch detection: ambient noise, different guitar tunings, or phone/mic placement can reduce accuracy (no detailed calibration or advanced audio settings visible in the listing).
• Limited analytics and feedback: the app appears focused on single-note correctness and scoring rather than detailed progress tracking, mistake analysis, or long-term learning plans.
• iOS-only distribution (App Store listing) — no indication of an Android or desktop version, limiting availability for non-iOS users.
• Time-limited drills (while useful for some) may frustrate learners who prefer unlimited practice or slower, accuracy-focused drills; customization options aren’t described in the listing.