| Feature | standard | pro |
|---|---|---|
| GENERAL | ||
| Requirement | iOS 15 | iOS 15 |
| Dark mode | ✓ | ✓ |
| Document per instrument | ✓ | ✓ |
| Cloud syncing | ✓ | ✓ |
| TUNING | ||
| Automatic note detection | ✓ | ✓ |
| Display of target pitch | ✓ | ✓ |
| Linear indicator | ✓ | ✓ |
| Strobe | ✓ | ✓ |
| Accuracy of 0.01 cents | ✓ | ✓ |
| Freeze indicator | ✓ | |
| Partial spectrum | ✓ | |
| Partial replay | ✓ | |
| Calibration | ✓ | |
| Over-pulling | ✓ | |
| Extended strobe settings | ✓ | |
| Configurable header | ✓ | |
| Tone generator | ✓ | |
| Headless tuning | ✓ | |
| Optimize concert pitch | ✓ | |
| TUNING STYLES | ||
| Balanced | ✓ | ✓ |
| Octaves pure | ✓ | ✓ |
| Twelfths pure | ✓ | ✓ |
| Fifths pure | ✓ | ✓ |
| Nineteenths pure | ✓ | ✓ |
| Custom styles | ✓ | |
| Static tunings | ✓ | |
| CUSTOMIZATION | ||
| Concert pitch | ✓ | ✓ |
| Measure inharmonicity | ✓ | ✓ |
| Custom range / harpsichords | ✓ | ✓ |
| Extra bass notes | ✓ | |
| Unequal temperaments | ✓ | ✓ |
| Custom temperaments | ✓ | |
| Interval weights | ✓ | |
| Partial weights | ✓ | |
| Extra stretch | ✓ | |
| CURVES | ||
| Inharmonicity curve | ✓ | ✓ |
| Graphical tuning curve | ✓ | |
| Deviation curves | ✓ | |
| PRICE | ||
| As one-time purchase | US$99.99 | US$599.99 |
| As subscription | US$15.99 / month | |
| US$149.99 / year |
