Richard Koopmann
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- Platforms: iOS Apps (1) iOS Games (1) macOS Apps (1)
- Rankings: 0
- Total: 3
- Lists: 1 + 1
- Reviews: 0
- Free: 0
- Points: ¡ 1 + 2
- Videos: 0
- Paid: 3
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- Website: Open
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- flation
- iOS Apps: Reference By: Richard Koopmann
- $1.00
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 0 Version: 2024.4.22 Introducing flation Your Time Machine for Money Value! Ever wondered how much a dollar from 1913 would be worth today? Or how the purchasing power of your savings has changed over the ...
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- card piles
- iOS Games: Card By: Richard Koopmann
- $0.99
- Lists: 0 + 0 Rankings: 0 Reviews: 0
- Points: 0 + 1 Version: 2024.1 You know you've been waiting *forever* for the famous 21-card trick to be on mobile. Simply memorize a card, indicate the pile, and your card is revealed to you! Is it witchcraft? ...
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- do over — text permutations
- macOS Apps: Developer Tools By: Richard Koopmann
- $0.99
- Lists: 1 + 1 Rankings: 0 Reviews: 0
- Points: 1 + 1 Version: 2024.1.1 - Want to quickly and easily change the values and template text and see the results in realtime? do over can do that. - Want to use a different placeholder in the template? do over ...
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