Days + Date + Time Calculator is a utility for duration math between dates and times on iOS.
The App DNA
What makes this app unique?
It serves users needing quick interval calculations, but the current ad-heavy implementation creates significant friction during use.
For Users requiring precise duration calculations between dates and times for personal or professional scheduling.
What does it look like?
Key features
Calculates total days between two calendar dates.
Computes duration between two specific calendar dates and times.
Calculates duration between two specific time inputs.
How much does it cost?
The app is distributed as a free utility without visible subscription or in-app purchase gates, relying entirely on ad inventory.
Velocity
Dormant developmentopaqueShow more...
The app has reached a zombie state, with no updates or feature releases in the last 417 days. Development activity has ceased entirely, and there is no evidence of ongoing maintenance or support. The lack of any recent version history suggests the project is no longer being actively developed.
Who built it?
山 钟
5 apps tracked · Productivity
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BlendCamera - Double ExposureUser Sentiment
What do users think recently?
The recent review mood reads excited. Users appreciate the app provides a simple and effective way for users to count days and track time and users appreciate the wide variety of special glyphs and characters available for creative text styling.
How are ratings & reviews evolving?
What users say, by theme
- The app provides a simple and effective way for users to count days and track time
- Users appreciate the wide variety of special glyphs and characters available for creative text styling
- Aggressive advertising at sign-in and during use disrupts the core functionality for many active users
49 of 49 recent reviews analyzed · high confidence · Excited overall
Read the full review analysisUnlock 2 more frustration themes and 2 user requests, each backed by review evidence.
Access the full report for freeCompetition
Competitive landscape for Days + Date + Time Calculator
How's the Productivity market?
Days + Date + Time Calculator maintains a 4.7-star rating across 862 total ratings, yet the lack of updates for 417 days signals a lack of active product investment. The reliance on ad-based monetization without a premium removal option creates a significant friction point for users.
Read the market outlookThe rivals identified
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Access the full report for freeThe Analyst's Read
Key takeaways for Days + Date + Time Calculator
Where is it heading?
The productivity utility market is consolidating around ad-free or subscription-based tools that offer modern, clean interfaces. Days + Date + Time Calculator remains exposed due to its reliance on aggressive ad inventory and lack of active development, which will likely lead to further user attrition as competitors continue to iterate.
- The 417-day release dormancy signals the product is in maintenance mode, which prevents it from addressing modern interface expectations.
- Frequent ad-based interruptions during use drive negative sentiment, which compounds the churn pressure already visible in recent reviews.
The SWOT
- Simple, effective logic for date interval calculations
- Implement one-time purchase to remove ads
Next best moves
Implement one-time purchase to remove ads because users explicitly request a paid tier to eliminate interruptions → increase user satisfaction
+ 1 more prioritized moveThe counter-intuitive read
The app's high rating is a legacy artifact…
Read the full takeSince the last report: The product's competitive narrative has shifted from a focus on recent functional regressions to a broader critique of its inability to meet modern productivity interface standards. The core product remains in a 417-day state of dormancy, with no material changes to features or pricing.
Bottom line
The reliance on intrusive ad inventory without a premium removal option is actively eroding the user base. Introducing a paid tier to remove ads would address the primary user complaint and stabilize the product's value proposition.
Unlock 2 critical frictions, 1 market threat, 1 more prioritized move and the analyst’s take.
Access the full report for freeFAQ
Is Days + Date + Time Calculator free to use?
Can I remove the ads in the app?
What are some alternatives to this calculator?
Sources
- [1] App Store, source
Report last updated