Comparison

Greatest Common Factor vs Expiry Tracker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Greatest Common Factor

This app helps users find the factors of numbers, calculate the Greatest Common Factor (GCF) for two or more numbers, and simplify fractions. It's a useful tool for understanding number theory concepts and performing fraction simplification.

Highlights
  • Find factors of a number
  • Calculate GCF of two or more numbers
  • Simplify fractions
  • Understand number theory concepts
  • Fraction simplification tool
Features
Read full description

The factors of a number are all the integers that you can evenly divide into that number. The Greatest Common Factor (GCF) is the greatest integer that divides exactly into two or more numbers with no remainder. The Greatest Common Factor is used to simplify fractions. To simplify a fraction, you can divide the numerator and denominator of the fraction by the GCF of the numerator and denominator. Factors, the Greatest Common Factor, and simplifying fractions go hand-in-hand. Use this app to get the factors of a number, get the Greatest Common Factor of two or more numbers, and to simplify fractions.

About

Expiry Tracker

Organize and track all your time-sensitive documents like warranties, subscriptions, and IDs. Get reminders for upcoming due dates and monitor your spending on these items. Data is kept private on your device with optional iCloud sync.

Highlights
  • Track warranties, subscriptions, IDs, and leases
  • Due date dashboard with urgency grouping
  • Monitor daily and monthly spending
  • Calendar and timeline view of bills
  • Customizable advance reminders
  • Home screen widgets for quick overview
  • Data export and local data clearing
Features
Read full description

Warranties, subscriptions, IDs, insurance, leases, supplies—anything with a due date belongs in one place. Expiry Tracker helps you manage every time-bound asset, group reminders by urgency, and see what you really spend each day and month. Data stays on this device by default. No account, no ads, no tracking. Optional iCloud sync uses your private container so iPhone and iPad stay in step. • Due dashboard: ring progress for ample / soon / today / overdue • Item management: category templates, billing cycles, photo attachments, notes • Holding costs: daily and annualized spend, category mix, trends, and rankings • Calendar & timeline: see bill dates by month or browse in chronological order • Local reminders: multi-step advance alerts with overdue escalation • Home Screen widgets: next due item, this month’s outlay, daily cost • Export anytime: JSON backup and CSV details; clear local data when you want • Full access with subscription (free trial available) Reminders stay off until you enable them. Built for people who want one place for subscriptions, warranties, and document renewals—not just “what’s due,” but whether it’s worth keeping. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.minifanyou.com/privacy/qx.html

Screenshots

Greatest Common Factor4 screens
Expiry Tracker4 screens

Verdict

The call

The clearest difference is rating: Greatest Common Factor at 5.0 against Expiry Tracker's 1.0. Greatest Common Factor also leads on iOS requirement (14.1 vs 17.0). Expiry Tracker's advantage is update cadence (every 8 days vs every 38 months) and monetization model (freemium vs paid). On price, ratings volume, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Greatest Common Factor holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Greatest Common Factor ships an update every 38 months, Expiry Tracker every 8 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 5 level
Greatest Common Factor versus Expiry Tracker: the parameters behind the verdict, then further details
ParameterGreatest Common FactorExpiry Tracker
PriceFreeFree
Rating5.0 (1 ratings) — better1.0 (1 ratings)
Number of ratings11
Update frequencyEvery 38 monthsEvery 8 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFreemium — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.1 — better17.0
Further details — not scored
Size1 MB5 MB
Age rating4+4+
DeveloperH ValeurXiamen Fengyun Network Technology Co., Ltd.

In-app purchases

None

Greatest Common Factor

No in-app purchases

None

Expiry Tracker

No in-app purchases

Questions

Is Greatest Common Factor free?
Greatest Common Factor is free to download, with no in-app purchases.
Is Expiry Tracker free?
Expiry Tracker is free to download, with no in-app purchases.
Which has better reviews, Greatest Common Factor or Expiry Tracker?
Greatest Common Factor is rated higher. Greatest Common Factor averages 5.0 out of 5 from 1 ratings, while Expiry Tracker averages 1.0 from 1 ratings.
Do Greatest Common Factor or Expiry Tracker have ads?
Neither Greatest Common Factor nor Expiry Tracker shows ads.
Which is updated more often, Greatest Common Factor or Expiry Tracker?
Greatest Common Factor ships an update every 38 months, and Expiry Tracker every 8 days. Most recently, Greatest Common Factor was updated on October 30, 2026 and Expiry Tracker on October 31, 2026.

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