Date + Days Calculator
By Nirav Patel
Date + Days Calculator is a free iOS utility for adding or subtracting days from specific dates, designed for professional users.
The App DNA
What makes this app unique?
The app removes the cognitive friction of manual calendar counting for professionals, though its inability to edit past entries creates new friction for users who make input errors.
For Professionals in civil engineering, medicine, and education who require quick date-based calculations.
What does it look like?
Key features
Calculates a future date by adding a specific number of days to a starting date.
Calculates a past date by subtracting a specific number of days from a starting date.
Provides date selection functionality covering a range of more than 100 years.
How much does it cost?
The app is distributed as a free utility with no visible in-app purchases or subscription tiers.
Velocity
Dormant developmentopaqueShow more...
Date + Days Calculator has seen no development activity for 3,013 days. The project is effectively abandoned, as no updates or feature enhancements have been deployed in over eight years. There is no evidence of ongoing maintenance or support for the current platform environment.
Who built it?
Nirav Patel
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What do users think recently?
The recent review mood reads mixed. Users appreciate the simple and clean design makes the application very useful for daily tracking tasks.
How are ratings & reviews evolving?
What users say, by theme
- The simple and clean design makes the application very useful for daily tracking tasks
- The inability to modify entry dates after creation prevents users from correcting past logs
3 of 3 recent reviews analyzed · limited sample
Read the full review analysisUnlock 1 user request, each backed by review evidence.
Access the full report for freeCompetition
Competitive landscape for Date + Days Calculator
How's the Utilities market?
Date + Days Calculator occupies a basic utility niche with a 3.0-star rating across 3 reviews. The lack of updates since 2018 positions it as a legacy tool rather than a competitive modern utility.
Read the market outlookThe rivals identified
Unlock the deeper market read.
Access the full report for freeThe Analyst's Read
Key takeaways for Date + Days Calculator
Where is it heading?
The market for single-purpose date utilities is consolidating around integrated tools that offer more flexibility. Date + Days Calculator is currently exposed to churn because it lacks the basic editing capabilities expected by professional users, and its lack of updates suggests these gaps will persist.
- The eight-year development silence indicates the app is in maintenance-only mode, which prevents it from addressing user requests for format toggles.
- The inability to modify past entries creates a persistent frustration loop that drives users toward more flexible, actively maintained calendar alternatives.
The SWOT
- Minimalist interface reduces cognitive load for quick, single-task date arithmetic
- Implementing a history log or editable entry system would capture users currently churning due to input errors
Next best moves
Ship editable entry functionality because users report inability to correct past logs → reduce churn
+ 1 more prioritized moveThe counter-intuitive read
The app's eight-year dormancy is its primary feature, as it provides a stable…
Read the full takeBottom line
Date + Days Calculator remains a legacy tool that requires an editable entry system to remain relevant for professional users. Adding this functionality would unlock the retention currently lost to input-error frustration, preventing users from abandoning the app for more flexible alternatives.
Unlock 2 critical frictions, 1 market threat, 1 more prioritized move and the analyst’s take.
Access the full report for freeFAQ
Is Date + Days Calculator suitable for professional use?
Does Date + Days Calculator allow me to change a date after I enter it?
What is a free alternative to Date + Days Calculator?
Sources
- [1] App Store
Report last updated