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Jakub Kalamarz

For knowledge workers, students, and developers seeking streamlined, mobile-first workflow management.

6apps1.4(165.6K) Multi-theme

Snapshot

Who is Jakub Kalamarz?

Equipping professionals and developers with focused utility and productivity tools. Streamlining workflows through gesture-based design and real-time technical monitoring.

Target audience

Knowledge workersStudentsDevelopers seeking streamlined

Active nemesis

Jared Hall

Other rivals

Portfolio

Free 4
6
apps
Productivity2
Developer Tools1
Health & Fitness1
Travel1

Last updated

Pomodoro Timer & Focus・pomo

v1.42.0

2.3y ago

Active

Publisher DNA

What defines Jakub Kalamarz?

Publisher DNA

Primary focus

Productivity and utility tools for mobile

Scale

indie

Target audience

Knowledge workers, students, and developers seeking streamlined, mobile-first workflow management.

Signature Patterns

  • •Strong emphasis on gesture-based and intuitive UI controls
  • •Mixed monetization strategy utilizing both free-to-use and paid-upfront models
  • •Focus on niche utility and workflow-specific problem solving
  • •Mobile-first design approach for task and project management
Active

Portfolio momentum

Released 5 updates across 6 apps in the last 6 months, indicating a consistent development cadence for their core productivity and utility titles.

Last release 74d agoActive apps 4Abandoned 2

Portfolio

What does Jakub Kalamarz ship?

Rivals

Who does Jakub Kalamarz compete with?

The rivals identified

Nemeses(1)

Jared Hall

known forAPI Alerts

1 app5.0Developer Tools

Both applications target developers requiring real-time monitoring of webhook events and project milestones. They compete directly on the utility of delivering instant notifications for server health and system activity.

Contenders(10)

Akshit Kumar Nagpal

known forHookBell - Webhook Alerts

1 app0.0Developer Tools

Both applications target developers requiring mobile visibility into webhook events. They compete directly on the utility of converting raw server-side data into actionable push notifications.

Anatolii Sukhonosov

known forPushBird - Push via Webhook

1 app5.0Developer Tools

Both apps target developers requiring HTTP-triggered push notifications, creating direct competition for simple alert delivery workflows.

Bibek Acharya

known forWebhookify - Ai Notifications

1 app5.0Developer Tools

Both applications target developers requiring webhook management and AI-filtered alerts, competing directly for the same technical audience.

Elsayed Hussein

known forWebhookBeam – Monitoring

1 app5.0Developer Tools

Both apps target developers needing real-time webhook monitoring, with both offering free access to push notification alerts for external service events.

Erfan Reed

known forHost Alerts

1 app5.0Developer Tools

Both applications target developers requiring real-time webhook monitoring and notification management for system events and custom triggers.

Jeffery Caldwell

known forWebhook Catcher

1 app5.0Developer Tools

Both applications target developers requiring mobile access to webhook data, sharing core functionality in endpoint creation and real-time notification delivery.

Kamil Kujawinski

known forAPI Widgets

1 app0.0Developer Tools

Both apps target developers managing API data, with Hook focusing on notification-based monitoring and API Widgets prioritizing home screen visualization of live data streams.

Matthias Aigner

known forWebhook to Push Notifications

2 apps0.0Developer Tools

Both applications target developers requiring real-time mobile alerts for webhook events, competing directly for the same technical workflow of bridging server-side triggers to push notifications.

Mohammed Alsaleh

known forPushHook - Webhook Alerts App

1 app1.0Developer Tools

Both applications target developers requiring real-time webhook monitoring, creating direct competition for the same technical workflow and notification management needs.

凤明 李

known forAPI Event Notify

1 app5.0Developer Tools

Both applications target developers requiring real-time mobile push notifications for server-side events and webhook triggers. They compete directly on the utility of delivering third-party system alerts to a mobile device.

Same space(1)

Simon B. Støvring

known forbrrr • send push notifications

1 app4.7Developer Tools

Brrr serves the same developer audience by providing a lightweight, account-free alternative for triggering push notifications directly from scripts.

The Analyst's Read

The bottom line on Jakub Kalamarz

Bottom line

The publisher demonstrates strong product-market fit in the productivity category, anchored by a high-engagement flagship app. Their ability to successfully diversify into developer tools will be the key indicator of their long-term scalability.

Frequently asked questions

How many apps does Jakub Kalamarz publish?
Jakub Kalamarz has 6 apps tracked by Marlvel, primarily in the Productivity category.
What kind of apps does Jakub Kalamarz make?
Jakub Kalamarz's portfolio is concentrated in Productivity and Developer Tools, with an average rating of 1.4/5 across rated apps.
What is Jakub Kalamarz's top app?
By review volume across the portfolio, Pomodoro Timer & Focus・pomo is Jakub Kalamarz's best-known app tracked by Marlvel.

What fed this analysis

Apps analyzed:
6
With full intel:
0
With overview:
6
Website scraped:
yes
Social presence:
no

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Jakub Kalamarz, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “Jakub Kalamarz intelligence.” Updated 2026-05-07. https://marlvel.ai/publishers/jakub-kalamarz

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Data licensed under CC-BY-NC 4.0