Greatest Common Factor vs SubZap
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Find factors of a number
- Calculate GCF of two or more numbers
- Simplify fractions
- Understand number theory concepts
- Fraction simplification tool
Read full descriptionHide 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.
SubZap
Read full descriptionHide full description
Stop losing money to forgotten subscriptions. SubZap is the subscription tracker that actually respects your wallet -- unlike competitors that charge you a monthly subscription just to track your other subscriptions. With SubZap, you get a clear picture of all your recurring payments in one place. See your monthly and yearly totals at a glance, get reminded before bills hit, and cancel unwanted subscriptions with a single tap. WHY SUBZAP? Other subscription trackers charge $4-12 per month. SubZap Pro is a one-time $3.99 purchase. That is not a typo. A subscription tracker that does not charge you a subscription. KEY FEATURES - Dashboard: See all your subscriptions, monthly and yearly totals, and upcoming bills at a glance - Quick Add: Add subscriptions in seconds with smart presets for popular services - Zap Cancel: Cancel any subscription with a single tap -- no more hunting through settings - Billing Reminders: Get notified before every billing date so you are never caught off guard - Trial Alerts: Never forget to cancel a free trial before it converts to paid - Category Breakdown: See where your money goes by streaming, fitness, cloud storage, and more - Trend Charts: Track how your spending changes over time with visual charts - Multi-Currency: Track subscriptions in different currencies with automatic conversion - iCloud Sync: Your data stays in sync across all your devices - Export CSV: Download your subscription data as a spreadsheet - Search and Filter: Find any subscription instantly - Dark Mode: Looks great in both light and dark themes - Pause Subscriptions: Temporarily pause tracking for seasonal services FREE TIER Track up to 3 subscriptions for free, forever. No ads, no tricks. View your monthly and yearly totals, get billing reminders, and use Zap Cancel -- all at no cost. PRO UNLOCK -- ONE-TIME $3.99 PURCHASE Unlimited subscriptions, custom categories, trial ending alerts, trend charts, multi-currency support, iCloud sync, CSV export, and more. Pay once, own it forever. No recurring charges. IN-APP PURCHASE INFORMATION - Payment will be charged to your Apple ID account at confirmation of purchase. - This is a one-time purchase, not a subscription. It will not auto-renew. - You can restore your purchase on any device signed into the same Apple ID.
Screenshots
Verdict
The clearest difference is price: SubZap at Free against Greatest Common Factor's $0.99. Greatest Common Factor's advantage is in-app purchases (none vs 1) and iOS requirement (14.1 vs 17). On ads and device support 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
SubZap is free to download; Greatest Common Factor costs $0.99 up front. SubZap sells 1 one-off in-app purchase. Greatest Common Factor asks for nothing beyond the download.
| Parameter | Greatest Common Factor | SubZap |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 38 months | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.1 — better | 17 |
| Further details — not scored | ||
| Size | 1 MB | 2 MB |
| Age rating | 4+ | 9+ |
| Developer | H Valeur | 贺 周 |
In-app purchases
Greatest Common Factor
No in-app purchases
SubZap
- SubZap Pro$3.99
Questions
Is Greatest Common Factor free?
Is SubZap free?
Do Greatest Common Factor or SubZap have ads?
Other comparisons















