---
title: "Vladimir Kelin — Publisher Overview"
type: publisher
publisher: "Vladimir Kelin"
publisher_slug: "vladimir-kelin"
canonical_url: "https://marlvel.ai/publishers/vladimir-kelin"
last_updated: 2026-05-07T21:47:19.699Z
source: Marlvel.ai
license: CC-BY-NC-4.0
citation: "Marlvel.ai — Vladimir Kelin Publisher Overview"
---
## ⚠ Content Warning

This publisher's portfolio includes apps classified as sensitive (health). Information is aggregated from public sources for informational purposes only. This overview touches health-related apps. It is not medical advice.

---

# Vladimir Kelin — Publisher Overview

> Providing precision timing and connectivity tools for fitness, academic, and professional workflows. Enabling hands-free data integration for athletes and structured task management.

- **Publisher:** Vladimir Kelin
- **Website:** [https://facebook.com](https://facebook.com)
- **Overview generated:** 2026-05-07
- **License:** CC-BY-NC 4.0

## Executive summary

The publisher maintains a focused utility-first strategy, bridging the gap between standard mobile productivity and specialized hardware integration. By prioritizing background functionality and unique input methods like haptic feedback and Bluetooth broadcasting, they capture a niche of users requiring reliable, hands-free performance. The recent expansion into BLE heart rate broadcasting suggests a strategic pivot toward deeper integration with third-party fitness ecosystems and wearable hardware.

## Publisher DNA

- **Primary focus:** Utility and Health & Fitness tools
- **Scale:** indie
- **Target audience:** Athletes, fitness enthusiasts, and individuals requiring structured, hands-free interval timing for academic or culinary tasks.

## Portfolio momentum

- **Velocity:** active
- **Active apps:** 3
- **Abandoned apps:** 0
- **Last major release:** 4 days ago

Released 3 updates across 3 apps in the last 6 months, maintaining a consistent development cadence for their entire portfolio.

## Aggregated portfolio metrics

- **Total reviews (all apps):** 235
- **Weighted rating:** 4.05 / 5
- **Apps in portfolio:** 3

## Category breakdown

| Category | Apps | Share |
| :--- | :--- | :--- |
| Health & Fitness | 2 | 66.7% |
| Utilities | 1 | 33.3% |

## Top apps

- **Periodic Timer** — Flagship utility app with 162 reviews.
- **Periodic Timer +** — Paid health and fitness variant with 71 reviews.
- **HeartBLE: Heart Rate Bluetooth** — Recent health-focused integration tool with a 5.0 rating.

## Signature patterns

- Focus on background-capable utility and timing functionality
- Integration of specialized hardware protocols like Bluetooth Low Energy
- Mixed monetization strategy utilizing both freemium and paid models
- Design emphasis on hands-free interaction and haptic feedback

## Bottom line

This publisher demonstrates a disciplined approach to niche utility software, successfully balancing consumer-facing timers with specialized health-tech integrations. Their ability to maintain high user satisfaction in technical categories suggests a strong product-market fit for power users.

---
© 2026 Marlvel.ai | [Publisher apps index](https://marlvel.ai/api/llm/publishers/vladimir-kelin) | [Methodology](https://marlvel.ai/api/llm/methodology)
Data licensed under CC-BY-NC 4.0.

---
© 2026 Marlvel.ai | [Full publisher profile](https://marlvel.ai/publishers/vladimir-kelin) | [Publisher apps index](https://marlvel.ai/api/llm/publishers/vladimir-kelin) | [Methodology](https://marlvel.ai/api/llm/methodology)
Data licensed under CC-BY-NC 4.0.