Report updated Jun 21, 2026
Date & Time Calculator(9 in 1)
For professionals and individuals requiring precise time, date, and duration calculations for work, study, or travel planning.
Date & Time Calculator(9 in 1) is a well-regarded business app that is free with in-app purchases. With a 4.4/5 rating from 5.8K reviews, it maintains solid user satisfaction. Users particularly appreciate accurate time and date calculation tools provide significant utility for professional scheduling and academic planning, though intrusive full-screen advertisements disrupt the user experience during split-screen multitasking and time-sensitive calculations remains a common concern.
What is Date & Time Calculator(9 in 1)?
Date & Time Calculator (9 in 1) is a specialized utility app for iOS and Android that performs complex date, time, and duration calculations.
Users hire this app to solve professional scheduling and academic planning problems that standard calculators cannot handle, as the specialized logic removes the manual effort of date-time arithmetic.
Current Momentum
v3.1 · 3mo ago
Steady- Shipped minor bug fixes on iOS
- Ships general Android performance improvements
What makes this app unique?
What Does It Look Like?
What Are The Key Features?
Calculates remaining travel time based on distance and average speed
Calculates business days between dates while excluding weekends
Home screen widget with second-hand support for Android 12+
How much does it cost?
- iOS: $0.99 one-time purchase
- Android: Free with ad support
Monetization splits by platform, utilizing a paid-upfront model on iOS and an ad-supported model on Android.
Who Built It?
Thomas Tsopanakis
Providing essential utility and productivity tools for personal organization and time management. Streamlining daily workflows through focused, single-purpose applications.
Portfolio
13
Apps
What other apps does Thomas Tsopanakis make?
Explore the full Thomas Tsopanakis report
Portfolio breakdown, audience, momentum, and every app published by Thomas Tsopanakis.
What do users think recently?
Low confidence · Latest 63 of 99 total reviews analyzed · Based on 99 reviews. Signal may be noisy.
How did the latest release land?
What is the recent mood?
Recent user voice shows a excited sentiment. Users appreciate accurate time and date calculation tools provide significant utility for professional scheduling and academic planning, but report intrusive full-screen advertisements disrupt the user experience during split-screen multitasking and time-sensitive calculations.
What Users Love
What Frustrates Users
What Users Want
View the full user-sentiment analysis
Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.
What is the competitive landscape for Date & Time Calculator(9 in 1)?
How's The Business Market?
How does it evolve in the Business market?
The app maintains visibility across 30 global markets, peaking at #43 Paid in the US category. Its grossing rank lagging behind free discovery signals monetization friction relative to its utility advantage.
Rank progression
31 active rankings tracked — 30-day window
The rivals identified
Same space(4)
Competes on general utility utility, serving as a generic alternative for users seeking basic calculation functionality.
Differentiators
- Provides a stripped-back, minimalist interface that appeals to users who find feature-heavy calculators overwhelming.
- Lacks the specialized date-time calculation engine that serves as the core value proposition for our target.
Targets the education segment, positioning itself as a specialized tool for students rather than a general business utility.
Differentiators
- Focuses on graphing and academic functionality, creating a distinct product identity separate from date-time management.
- Optimized for the specific needs of students and educators rather than the professional time-tracking market.
Maintains a massive user base by focusing on high-frequency, general-purpose utility rather than specialized date-time logic.
Differentiators
- Prioritizes broad-spectrum arithmetic features over the niche date-time calculation workflows found in our target app.
- Leverages a long-standing market presence to maintain high visibility in general utility search results.
As the default system utility, it captures the vast majority of casual calculation intent by being pre-installed on every iOS device.
Differentiators
- System-level integration provides instant access via Control Center, which third-party apps cannot replicate.
- Zero-friction user experience eliminates the need for downloading or managing additional utility software.
New entrants(1)
Demonstrates higher development velocity with multiple releases in the last six months compared to stagnant competitors.
Differentiators
- Increased release cadence suggests a more active approach to bug fixes and feature iteration cycles.
- Focuses on rapid deployment of utility updates to capture users dissatisfied with abandoned legacy calculator apps.
Compare Date & Time Calculator(9 in 1) against every rival
All rivals in one side-by-side table — identity, store metrics, ratings & sentiment, and strategic intel — plus a head-to-head page for each.
The outtake for Date & Time Calculator(9 in 1)
Strengths to defend, gaps to attack
Core Strengths
- Specialized calculation engine provides high-precision utility for professional scheduling
- Analog widget drives daily home-screen visibility
Critical Frictions
- Full-screen ads block visibility during split-screen usage
- Persistent crash reports during standard operations
Growth Levers
- B2B distribution into academic institutions as a standard scheduling tool
- Wearable integration for quick-access time calculations
Market Threats
- System-level calculator updates reducing the need for third-party tools
- Aggressive ad-monetization driving users to cleaner, free alternatives
What are the next best moves?
Audit ad-placement logic because full-screen ads block split-screen usage → reduce churn
Top complaint theme identifies ad-disruption as a primary friction point during multitasking.
Trade-off: Pause the widget-expansion sprint — ad-friction has a higher impact on current user retention.
Ship stability hotfix because crash reports occur during standard operations → stabilize Android rating
Sentiment analysis identifies technical instability as a key complaint theme.
Trade-off: Same-quarter capacity available — no major lever displaced.
A counter-intuitive read
The app's reliance on ad-supported monetization on Android is a strategic liability that makes it vulnerable to system-level utilities which offer a cleaner experience at zero cost.
Feature Gaps vs Competitors
- Real-time graphing (available in @Calculator but absent here)
- System-level Control Center integration (available in Apple Calculator but absent here)
Key Takeaways
The app provides high-utility calculation tools, but aggressive ad-monetization on Android is creating churn, so the PM should prioritize ad-placement audits to protect the user base.
Where Is It Heading?
Mixed Signals
The utility-calculator market is consolidating around system-integrated tools, leaving third-party apps with high ad-friction exposed. Unless the team shifts from ad-heavy monetization to a more balanced model, they will continue to lose ground to cleaner, free alternatives.
Persistent crash reports during standard operations erode user trust, which compounds the rating drag already visible on Android.
Intrusive full-screen advertisements during split-screen usage drive users toward cleaner alternatives, accelerating churn pressure on the Android base.