byKlemm
Shopify apps for checkout - other and more
byKlemm is a Germany-based Shopify app developer founded in 2026. The firm specializes in the Checkout - Other category, which serves as the sole focus of its current portfolio. The studio maintains a lean collection consisting of one active application.
The developer’s flagship offering is PO Validator B2B, which provides specialized functionality within the checkout ecosystem. This application currently represents the entirety of the portfolio's reach across product categories.
byKlemm is currently establishing its presence in the Shopify marketplace as it begins its development journey. The studio focuses on delivering essential checkout tools to support merchant operations.
1 published apps · 1 currently active
Time to review
No usage duration data available yet.
Top merchant geographies
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Across all apps
How byKlemm's apps stack up against the category leaders.
PO Validator B2B
vs Aftersell Post Purchase Upsell
PO Validator B2B
vs SMART Checkout Rules & Upsells
PO Validator B2B
vs Kedra Checkout Rules & Upsells
PO Validator B2B
vs Kwik COD & Checkout
PO Validator B2B
vs Blockify Checkout Customizer
PO Validator B2B
vs Payment Rules Hide PaymentHero
Developers with overlapping focus areas