Apps with estimates
0 of 10% of their apps have a 30-day estimate
Jaap-Jan Groenendijk
iOS apps by Jaap-Jan Groenendijk, with estimated downloads and revenue.
PublisherUpdated Oct 19, 2026
Avg. rating
0.00Weighted by number of ratings
Apps All 1 of their apps we track.
| App | Category | Downloads · 30D |
|---|---|---|
 CheckWatchDeveloper Tools | Developer Tools | Downloads and revenue for apps outside the free top 300 are part of Pro |
| App | Category | Released | Downloads · 30D |
|---|---|---|---|
| CheckWatchDeveloper Tools | Developer Tools | Apr 21, 2026 | Downloads and revenue for apps outside the free top 300 are part of Pro |
Categories Share of their apps
- Developer Tools100%
About this data: every app of theirs we track. Downloads and revenue are AppTrendKit estimates, not the publisher's own numbers; ratings come from the App Store.