David Kieffer was founded in 2019. The first app was launched in June 5, 2019 and they have 1 iOS apps in August 2025
David Kieffer is a publisher of Zef app.
Name | Category | Downloads (30d) | Monthly Revenue | Reviews | Ratings | Recent release | |
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![]() Zef
Riding sports social tracking
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Sports |
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21
|
2
|
2 months ago |