About this app
Hone your skills at converting between metric prefixes using S.I. units. The Metric Practice app offers practice in converting between metric prefixes at different skill levels. You can either select the units, the value, or both to determine the equivalent for a given value and unit. The lite version of this app contains only the novice level of each practice type.
Latest release
What’s New
This update from Apple will improve the functionality of this app. No new features are included. **Added option to purchase all content via in-app purchase.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 22, 2026 · 3:29 PM Free
Screenshots
