OverTune vs CamCheck

Standard tuners detect one frequency. OverTune detects three. Most acoustic instruments — and handpans in particular — produce a fundamental pitch together with an octave and a compound fifth. Bringing all three into precise alignment is what defines a well-tuned instrument. OverTune gives each overtone its own dedicated panel, analyzing them independently and simultaneously in real time. THREE INDEPENDENT PANELS Select any note from C1 to B7. OverTune configures three panels automatically: • Panel 1 — Fundamental • Panel 2 — Octave (2× fundamental) • Panel 3 — Compound fifth (3× fundamental, one octave + a perfect fifth) Each panel runs its own FFT spectral analysis with an adjustable frequency range, so you can focus exactly where you need to. WHAT EACH PANEL CONTAINS • Needle gauge — ±50 cent scale, spring-animated, with an in-tune zone at ±5 cents • Stroboscope — an animated pattern behind the needle that scrolls with pitch deviation and freezes when perfectly in tune. Choose from chevron, sine wave, or square styles • Frequency spectrum — logarithmic display with draggable range bounds and adjustable amplitude threshold • Note history — a rolling time graph showing tuning stability. Horizontal mode covers ±2 semitones; Vertical mode covers ±6 semitones with time flowing top to bottom • Reference tone — press and hold the speaker icon to hear a pure sine wave at that panel's target frequency. Double-tap to lock continuous playback INSTRUMENT PRESETS Filter the note selector to the exact notes of your instrument: • 21 handpan scale layouts — Kurd, Integral, Hijaz, Celtic, Pygmy, Akebono, and more • 20 musical scales — Major, Minor, Pentatonic, Blues, Modes, and World scales • 13 string instrument tunings — Guitar, Bass, Violin, Cello, Ukulele, and more TUNING TEMPERAMENT With an instrument preset active, compare your pitch against historical tuning systems instead of standard 12-TET: • Just Intonation — pure integer ratios • Pythagorean — chain of pure 3:2 fifths • Meantone (¼-comma) — pure 5:4 major thirds • Custom — define your own cent offsets for all 12 scale degrees EVERYTHING ELSE • A4 reference pitch adjustable from 400 to 480 Hz • Sharp or flat accidental notation — your choice • Focus modes: Narrow (full range) or Tight (±2 semitones from target) • Microphone selection for external audio inputs • Keep screen on during tuning sessions • Dark, light, or system appearance BUILT FOR HANDPAN BUILDERS Tuning a handpan means bringing the Doum (fundamental), Tak (octave), and compound fifth into harmonic alignment — one note at a time, strike after strike. OverTune was designed specifically for this workflow. Select a note, watch all three overtones simultaneously, and track your corrections over time with the history graph. FREE TO TRY OverTune includes 30 minutes of free daily use. A subscription unlocks all three panels with unlimited daily tuning time.

CamCheck helps you inspect an iPhone camera system before buying, selling, repairing, or accepting a used device. Use the app to check for possible camera dust spots, focus sharpness issues, shake stability, and differences between available camera lenses. CamCheck is designed for marketplace buyers, resellers, repair shops, and anyone who wants a quick camera inspection workflow. CAMERA DUST TEST Point the camera at a white wall, white paper, or another evenly lit bright surface. CamCheck analyzes the captured image and highlights possible dark dust marks or lens/sensor artifacts. FOCUS SHARPNESS TEST Use the built-in focus test pattern to check camera sharpness. Display or share the pattern on another screen, capture it with the tested iPhone camera, and review the focus score. FRONT & BACK CAMERA TESTING Inspect both rear and front cameras. For supported devices, compare available rear camera lenses such as Wide, Ultra Wide, and Telephoto. STABILIZATION & SHAKE TEST Hold the device still and run a motion-based stability test. CamCheck uses device motion sensors to estimate shake stability during inspection. CAMERA REPORTS Save inspection results, compare camera captures, review scores, and export a clean PDF report for buyers, sellers, repair shops, or personal records. USEFUL FOR: • Used iPhone buyers • Marketplace inspections • Phone resellers • Repair shops • Refurbished device checks • Personal camera health checks PREMIUM FEATURES: • Unlimited camera inspections • Front and back camera diagnostics • Multi-lens comparison • PDF reports • Focus chart testing • Saved inspection history Important: CamCheck is an inspection aid. It highlights possible camera issues based on captured images and motion data. Results may vary depending on lighting, surface quality, camera settings, and device condition. CamCheck does not replace professional repair diagnostics. Subscription Plans: - Payment will be charged to your App Store Account at confirmation of purchase. - Your subscription will automatically renew unless auto-renew is turned off at least 24 hours before the end of the current subscription period. - Your account will be charged for renewal within 24 hours prior to the end of the current subscription period. Automatic renewals will cost the same price you were originally charged for the subscription. - Manage or cancel your subscription from your user settings in the App Store at any time after purchasing. - Any unused portion of a free trial will be forfeited if you purchase a subscription. Privacy Policy: https://sunteame.com/privacy-policy/ Terms of Use: https://sunteame.com/terms-of-service/ If you have questions or feature requests, use the support link in the app to contact us.