Days between Dates

Days between Dates

By William Jockusch

Days between Dates is a utility for calculating intervals between two dates, designed for legal and medical professionals using a spin-wheel interface on iOS.

The App DNA

What makes this app unique?

The app removes the cognitive friction of manual calendar counting for professionals who need to determine sentence, delivery, or project deadlines.

For Professionals in legal and medical fields needing quick date-to-date duration calculations.

What does it look like?

Key features

Date Dial Interfacestandard

Spin-wheel UI for selecting start and end dates to calculate intervals.

Multi-Unit Calculationstandard

Outputs duration in days, weeks, months, and years.

How much does it cost?

freeFree

Distributed as a free utility with no functional in-app purchase gates due to broken store connectivity.

Velocity

Dormant developmentopaqueShow more...

Development has ceased, with no updates or feature releases in 2,138 days. The app remains in a zombie state, as the last recorded version was published over five years ago. There is no evidence of ongoing maintenance or operational activity.

See all version history

Who built it?

William Jockusch

5 apps tracked · Utilities

EduCalc Classic ProEduCalc Classic ProTriangle SolverTriangle SolverAd-Free Unit ConverterAd-Free Unit ConverterEduCalc ProEduCalc Pro
Explore the full publisher profile

User Sentiment

What do users think recently?

Review voice lately leans excited. Users appreciate simple and clean interface allows users to calculate date ranges without unnecessary complexity or bloat and versatile date calculation features provide significant utility for professional workflows like legal and pharmacy scheduling.

How are ratings & reviews evolving?

App Store
4.16 · 19

What users say, by theme

What Users Love
  • Simple and clean interface allows users to calculate date ranges without unnecessary complexity or bloat
  • Versatile date calculation features provide significant utility for professional workflows like legal and pharmacy scheduling
  • Reliable core functionality makes the app a daily habit for tracking personal and professional deadlines
What Frustrates Users
  • Unstable date field behavior causes input values to reset or switch unexpectedly during user interaction
+ 2 more themes
What Users Want 3 requests inside

40 of 40 recent reviews analyzed · high confidence · Excited overall

Read the full review analysis

Unlock 2 more frustration themes and 3 user requests, each backed by review evidence.

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Competition

Competitive landscape for Days between Dates

How's the Utilities market?

Days between Dates maintains a 4.16-star rating across its limited review pool, serving as a legacy utility in the App Store. The lack of updates since 2020 signals a maintenance-only posture that cedes the professional-utility segment to more active competitors.

The rivals identified

The Analyst's Read

Key takeaways for Days between Dates

Where is it heading?

The utility market is shifting toward integrated project management tools that offer business day logic and cloud sync. Days between Dates remains stable due to its simplicity, but it risks losing its professional user base to more modern alternatives that automate the manual adjustments currently required.

  • The five-year development hiatus prevents the integration of business day logic, which forces professional users to manually adjust for weekends and holidays.
  • The minimalist interface maintains a steady, positive rating among a small user base that values simplicity over feature expansion.

The SWOT

Core Strengths
  • Minimalist spin-wheel interface reduces cognitive load for quick date-to-date calculations
Critical Frictions 2 weaknesses inside
Growth Levers
  • Adding persistent storage for past calculations would address the top user request
Market Threats 1 threat identified

Next best moves

1 Invest

Ship persistent storage for calculations because it is the top-requested user feature → increase daily utility

The counter-intuitive read

The app's greatest weakness, its lack of updates…

Read the full take

Since the last report: The app's product strategy shifted from general maintenance to a specific focus on persistent storage as the primary development priority. While the codebase remains in a five-year hiatus, the analytical framework now identifies the lack of history logging as the most significant barrier to professional utility.

Bottom line

Days between Dates serves a narrow professional niche through simplicity, but the lack of persistent storage and business day logic limits its retention. Adding a simple history log would unlock the daily habit loop users currently request.

Unlock 2 critical frictions, 1 market threat and the analyst’s take.

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FAQ

Is Days between Dates suitable for professional project management?
It is useful for quick date-to-date math, but it lacks business day logic and persistent storage, which may limit its utility for complex professional project management.
Does Days between Dates save my past calculations?
No, the app does not currently support persistent storage or history logging for past calculations.
What is a free alternative to Days between Dates?
Users seeking more advanced features like business day exclusion or history logging should look for dedicated project management or calendar-based utility apps.

Sources

  1. [1] App Store

Report last updated

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Days between Dates, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

What's new

The app's product strategy shifted from general maintenance to a specific focus on persistent storage as the primary development priority. While the codebase remains in a five-year hiatus, the analytical framework now identifies the lack of history logging as the most significant barrier to professional utility.

added

Persistent storage identified as core weakness

shifted

Outlook trend adjustment

shifted

PM action item priority

Cite this report

Marlvel.ai. “Days between Dates Intelligence Report.” Updated Sep 9, 2026. https://marlvel.ai/apps/days-between-dates

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