Solid Calendar
Solid Calendar is a productivity app for iOS, iPadOS, and macOS that manages events, tasks, and rotating schedules through a one-time purchase model.
The App DNA
What makes this app unique?
It removes the financial friction of recurring subscriptions, serving users who prioritize data privacy by keeping all information on the local device.
For Professionals, students, and shift-workers seeking a simple, subscription-free alternative to native calendar applications.
What does it look like?
Key features
Conversational event creation reduces scheduling friction.
Supports shift-based work patterns for non-office professionals.
Eliminates subscription fatigue for productivity users.
How much does it cost?
The $4.99 one-time purchase model acts as a primary differentiator against subscription-heavy productivity competitors.
Velocity
Steady developmentShow more...
5 versions in history. Development pace: steady.
Who built it?
Solid Apps S.R.L.
13+ apps tracked · Productivity
Grammar Fix
Fit.AI: ultra personal fitness
Winston: Daily Companion
Solid Planner - timer + agenda
Trace: Expense Tracker
Solid Notes
Solid Diary - AI Journal
Evo - The Everything App
Solid Habits
Solid Focus Timer
Parksy - find your parked car
Recipes of the worldUser Sentiment
What do users think recently?
How are ratings & reviews evolving?
Not enough recent reviews to extract reliable themes yet.
Read the full review analysisCompetition
Competitive landscape for Solid Calendar
How's the Productivity market?
Solid Calendar maintains a niche position by avoiding subscription models, a strategy that contrasts with the broader productivity category. The $4.99 price point provides a clear value proposition for users who prioritize ownership over recurring access.
The rivals identified
By Gunia UG (haftungsbeschränkt)
CalenGoo directly competes with Solid Calendar by offering a robust, feature-rich environment for power users who require deep integration between calendar events and task management.
- Offers a sophisticated direct sync engine that provides more reliable cross-platform data consistency than Solid.
- Includes advanced task-in-event integration, allowing users to manage complex workflows directly within their calendar view.
- Provides specialized floating event functionality that offers greater flexibility for scheduling tasks without fixed time slots.
Cat Calendar：Schedule PlannerContender
Štyri ZmenyContender
ShiftCal: Shift Schedule MakerContender
Algerie Calendrier 2026ContenderUnlock the head-to-head verdict: where this rival wins, and where it loses.
Access the full report for freeThe Analyst's Read
Key takeaways for Solid Calendar
Where is it heading?
The productivity calendar market is consolidating around tools that offer either deep enterprise integration or high-frequency live-ops updates. Solid Calendar remains advantaged by its pricing, but the lack of recent development activity exposes it to churn as competitors improve their feature sets.
- The 329-day update gap suggests the app is in maintenance mode, which risks losing users to rivals with faster release cadences.
- The $4.99 one-time purchase model remains a strong differentiator in a market saturated with recurring subscription costs.
The SWOT
- One-time purchase model removes recurring cost friction
- Local-only data storage ensures privacy compliance
- Expand shift-management features to displace regional-specific competitors
Next best moves
Ship a feature update to the rotating schedule manager because the current 329-day update gap risks user churn to more active rivals → increase retention.
The counter-intuitive read
Users report: The lack of cloud-sync is a feature, not a bug…
Read the full takeFeature gaps
Advanced task-in-event integration (available in CalenGoo but absent here) +1
Since the last report: The update gap has widened from 159 days to 329 days, intensifying the risk of maintenance-mode stagnation. The competitive narrative now explicitly frames the lack of cloud-sync as a privacy-focused design choice rather than a feature omission.
Bottom line
Solid Calendar’s one-time purchase model effectively captures subscription-fatigued users, but the 329-day update gap leaves the app vulnerable to rivals with active development cycles. Prioritizing a feature update for the rotating schedule manager would defend the core shift-worker segment against more agile competitors.
Unlock 2 critical frictions, 1 market threat and the analyst’s take.
Access the full report for freeFAQ
Is Solid Calendar a subscription app?
How does Solid Calendar compare to CalenGoo?
Is my calendar data stored on third-party servers?
What is a good alternative for shift scheduling?
Sources
- [1] App Store
Report last updated