Report updated May 25, 2026

TL;DR:Roster-Calendar wins in the productivity space by prioritizing speed-to-entry for shift-based workers, but its reliance on manual input leaves it vulnerable to automated scheduling competitors. Users feel Mixed, praising rapid shift pattern entry but frustrated by manual entry friction. Roster-Calendar maintains a loyal niche through its rapid shift-entry templates, but it risks obsolescence as AI-driven scheduling tools automate manual logging, so the PM must prioritize natural language input to protect the core user base from modern competitors..|TL;DR:Roster-Calendar wins in the productivity space by prioritizing speed-to-entry for shift-based workers, but its reliance on manual input leaves it vulnerable to automated scheduling competitors. Users feel Mixed, praising rapid shift pattern entry but frustrated by manual entry friction. Roster-Calendar maintains a loyal niche through its rapid shift-entry templates, but it risks obsolescence as AI-driven scheduling tools automate manual logging, so the PM must prioritize natural language input to protect the core user base from modern competitors..
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Roster-Calendar is an established productivity app that is free with in-app purchases. With a 4.4/5 rating from 63 reviews, it shows polarized user reception. Users particularly appreciate rapid shift pattern entry, though manual entry friction remains a common concern.

What is Roster-Calendar?

Roster-Calendar is a productivity app for shift workers to manage recurring work patterns on iOS.

Users hire this app to minimize the time spent logging complex, recurring shift schedules that standard calendar apps handle poorly.

Current Momentum

v6.3 · 28mo ago

Zombie
  • Last major update Jan 2024.
  • No new features released recently.
AI-powered deep analysis surfacing high-signal insights. Still in beta, accuracy improves daily. For informational purposes only.

Active Nemesis

CalenGoo - Calendar and Tasks

CalenGoo - Calendar and Tasks

By Gunia UG (haftungsbeschränkt)

Other Rivals

Family Calendar and Organizer
WidgetCal-Calendar Widget
CalendarBridge
Solid Calendar
Flipcause
Kickserv Field Service
Smokeball
AutoAlert

7-Day Rank Pulse 🇺🇸

Productivity

No ranking data

Rating Pulse 🇺🇸

Recent User MoodAI-powered deep analysis surfacing high-signal insights. Still in beta, accuracy improves daily. For informational purposes only.

What makes this app unique?

What Does It Look Like?

How Is The App's Momentum Right Now?

Loading...

What Are The Key Features?

Shift Pattern TemplatesDifferentiator

Editable templates for rapid entry of recurring work schedules

Online SyncDifferentiator

Cloud synchronization between mobile app and web-based calendar interface

How much does it cost?

Freemium
  • Free tier with ads
  • Premium subscription at $1.49/month

Freemium model anchored at $1.49/month, gating advanced synchronization, multimedia features, and ad removal.

Who Built It?

Productivity

Enrichment in progress

Publisher profile available very soon

What other apps does michael heinz make?

Отжимания 100+

Отжимания 100+

Здоровье и фитнес

Roster-Calendar Pro

Roster-Calendar Pro

Business

Generador de frecuencias Pro

Generador de frecuencias Pro

Medicina

Lupa con luz+zoom

Lupa con luz+zoom

Medicina

What do users think recently?

Medium confidence · 49 reviews analyzed

How did the latest release land?

Overall
4.4/ 5
(63)
Current version
4.4/ 5
0.0 vs overall
(63)
Main signal post-update: rapid shift pattern entry.

What is the recent mood?

Mixed

Recent user voice shows a mixed sentiment. Users appreciate rapid shift pattern entry, but report manual entry friction.

Limited review volume (49 reviews). Sentiment analysis will deepen as more data lands.

What is the competitive landscape for Roster-Calendar?

How's The Productivity Market?

Market outlook for this category

Available very soon

The rivals identified

The Nemesis

Head to Head

Roster-Calendar should focus on its niche speed-to-entry advantage rather than competing on feature breadth, which is already dominated by CalenGoo.

What sets Roster-Calendar apart

  • Offers a significantly more streamlined, low-friction onboarding process for shift-based workers.

  • Provides a specialized, purpose-built UI for rapid shift pattern entry that outperforms generalist calendars.

What's CalenGoo - Calendar and Tasks's Edge

  • Maintains a massive, battle-tested ecosystem with over 1.5 million ratings and high user trust.

  • Provides deep, granular configuration options for power users that Roster-Calendar currently lacks.

Contenders

Features integrated group chat and shared to-do lists, facilitating better communication for family-based scheduling.

Prioritizes collaborative group calendar management, whereas Roster-Calendar is currently optimized for individual shift tracking.

Offers superior lock-screen and notification center widget customization compared to Roster-Calendar's current feature set.

Provides deep integration with AwesomeCalendar, creating a more interconnected ecosystem for power users.

Leverages AI scheduling assistants to automate meeting times, a feature absent in Roster-Calendar's manual workflow.

Provides a unified interface that bridges disparate calendar services, reducing fragmentation for professional users.

Solid Calendar

Solid Calendar

4.9 (114)

Solid Apps S.R.L.

📈

Solid Calendar is a direct threat because it combines natural language input with rotating schedule management, mirroring Roster-Calendar's core value proposition.

Supports natural language input, allowing users to create events faster than Roster-Calendar's manual tap-based entry.

Includes a dedicated rotating schedule manager that specifically targets the same shift-work demographic as Roster-Calendar.

Peers

Provides on-site payment processing and QR code check-in, which are critical for event-based scheduling workflows.

Offers real-time reporting features that provide deeper insights into event attendance than Roster-Calendar.

Includes digital signature capture and QuickBooks integration, essential for field service professionals managing client work.

Focuses on end-to-end field service management rather than just personal shift pattern tracking.

Automates time tracking and legal form generation, providing high-value utility that Roster-Calendar does not offer.

Includes an AI-powered matter assistant that manages complex professional workflows beyond simple calendar entries.

Integrates inventory management and customer engagement tools, positioning it as a broader business operations platform.

Provides automated task assignment and monitoring, which is more complex than Roster-Calendar's simple shift logging.

New Kids on the Block

Shift Calendar: Work Planner

Shift Calendar: Work Planner

0

Brite Technologies

This is a direct feature-for-feature competitor that has entered the market to challenge Roster-Calendar's specific niche.

Includes an integrated earnings tracker, providing financial utility that Roster-Calendar currently lacks for shift workers.

The outtake for Roster-Calendar

Strengths to defend, gaps to attack

Core Strengths

  • Rapid shift pattern entry mechanism sustains high user satisfaction for manual loggers
  • Freemium pricing structure lowers the barrier to entry for new shift workers

Critical Frictions

  • $1.49/month premium tier lacks high-value automation features
  • Manual entry workflow creates friction compared to natural language competitors

Growth Levers

  • Integration of natural language processing could automate shift entry
  • B2B partnerships with staffing agencies could scale user acquisition

Market Threats

  • Solid Calendar's natural language input feature directly erodes the speed-to-entry advantage
  • AI-driven scheduling assistants are rapidly commoditizing manual calendar logging

What are the next best moves?

highInvest

Ship natural language input because Solid Calendar's input speed is a direct threat → increase new-user conversion.

Solid Calendar's natural language input is a cited competitive threat.

Trade-off: Pause the multimedia feature development — natural language input has higher impact on core retention.

mediumMaintain

Audit premium tier value because current gating is insufficient to drive conversion → increase subscription revenue.

Freemium model insights indicate current gating is limited.

Trade-off: Same-quarter capacity available — no major lever displaced.

A counter-intuitive read

The app's lack of feature updates is not a weakness but a sign of a completed utility that requires no further bloat to serve its core shift-worker demographic.

Feature Gaps vs Competitors

  • Natural language input (available in Solid Calendar but absent here)
  • Integrated earnings tracker (available in Shift Calendar but absent here)

Key Takeaways

Roster-Calendar maintains a loyal niche through its rapid shift-entry templates, but it risks obsolescence as AI-driven scheduling tools automate manual logging, so the PM must prioritize natural language input to protect the core user base from modern competitors.

Where Is It Heading?

Mixed Signals

The shift-scheduling market is consolidating around automated, AI-assisted tools, leaving manual-entry apps like Roster-Calendar increasingly exposed. Without a shift toward automation, the app will likely see churn increase as users migrate to competitors that offer lower-friction scheduling workflows.

Lack of feature updates in the latest release suggests a maintenance-mode posture that leaves the app vulnerable to faster-moving competitors.

The stable 4.37 rating indicates the core manual-entry value proposition remains intact for the existing user base.

Disclosure

Independent intel to help builders create better apps.

AI-powered analysis with editorial review, built from publicly available sources. See methodology.

Marlvel.ai is not affiliated with, endorsed by, or sponsored by Roster-Calendar, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Hope this helps & keep building! · Found an error?

What's new in this report

The app remains in a maintenance-mode state, with competitive pressure shifting from technical stability issues to a lack of modern input features like natural language processing.

added

Natural language input threat

shifted

Complaint theme shift

declined

Sentiment score decrease

added

Natural language processing opportunity

Cite this report

Marlvel.ai. “Roster-Calendar Intelligence Report.” Updated May 25, 2026. https://marlvel.ai/intel-report/productivity/roster-calendar

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