Prime Factorization vs Calculator HD Pro Lite
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Prime Factorization
This utility app breaks down integers into their prime factors. It also calculates the number and sum of divisors, lists all divisors, and identifies specific number types like prime, perfect, abundant, or deficient.
- Prime factorization of integers
- Calculate number of divisors
- Sum of divisors calculation
- List all divisors
- Identify prime numbers
- Identify perfect, abundant, deficient numbers
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This app factorize inputted integer to primes. You can input and factorize any integers under 100 million. App will show below result. * The result of prime factorization * The number of divisors * The sum total of divisors * All Divisors In addition, you can know which inputted number is "Prime number", "Perfect Number", "Multipru Perfect Number", "Abundant Number"or "Dificient Number".
Calculator HD Pro Lite
This app offers a user-friendly calculator with large buttons and extensive customization options. It features a dual-line display to see input and results simultaneously, saves your calculation history, and provides full scientific functions. Personalize layouts, themes, and even button symbols to suit your needs.
- Dual-line display
- Calculation history
- Full scientific functions
- Customizable layouts and themes
- Big buttons
- Email history
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A colorful calculator with big buttons, comprehensive features, and extensive customization. Used by millions. Supported by ads. SEE EVERY STEP ・Dual-line display - shows your input and result simultaneously ・Multi-line input for long equations ・Tap & hold to move the cursor or copy and paste where you want SAVE YOUR WORK ・History saves every calculation with time and date ・Label important calculations for easy reference ・Email single calculations or complete history ・Swipe down to review previous work CUSTOMIZE EVERYTHING ・6 layouts including extra-large button options ・10 color themes plus Dark Mode ・Adjustable font size and bold text ・Left-handed mode ・Show or hide features you don't need SCIENTIFIC FUNCTIONS ・Full scientific calculator when needed ・Memory buttons with values displayed ・Percentage and backspace buttons ・Automatic scientific notation ・VoiceOver accessibility OPTIONAL IN APP PURCHASES ・Today View Widget (iOS 17 and below) ・Multiple History Tapes ADDITIONAL FEATURES ・Customizable button symbols and decimal settings ・Multiple backspace button styles ・iPad Split View and 3D Touch support ・Gesture controls for quick access URL Scheme: calculatorhdprofree://
Screenshots
Verdict
The clearest difference is ads: Prime Factorization at none against Calculator HD Pro Lite's shown. Prime Factorization also leads on review sentiment (100% vs 77%) and monetization model (free vs ad-supported). Calculator HD Pro Lite's advantage is ratings volume (52K vs 5) and rating (4.6 vs 4.4). On price, update cadence, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Calculator HD Pro Lite holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Calculator HD Pro Lite has 52K ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 100% of Prime Factorization's written reviews are positive against 77% of Calculator HD Pro Lite's, so the app with the better star average is not the one people write more warmly about.
Prime Factorization ships an update every 3 months, Calculator HD Pro Lite every 2 months. The most recent releases landed on October 15, 2026 and October 24, 2026 respectively.
| Parameter | Prime Factorization | Calculator HD Pro Lite |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (5 ratings) | 4.6 (52K ratings) — better |
| Positive reviews | 100.0% of reviews — better | 77.3% of reviews |
| Number of ratings | 5 | 52K — better |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 15.2 |
| Further details — not scored | ||
| Size | 2 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | Sohei Mori | Cider Software LLC |
Customer experience
Prime Factorization
Calculator HD Pro Lite
Bugs and requests
Prime Factorization
Not enough reviews yet to summarise bugs or requests.
Calculator HD Pro Lite
Reported bugs
3 issues- Calculation errors with very large numbers
- Crashes after recent update
- Decimal point displayed as comma
Requested features
5 requests- Dark mode option
- Ability to sync calculation history across devices
- More advanced math functions (e.g. dms/dd)
- Customizable button layout
- Ability to disable ads without paying
In-app purchases
Prime Factorization
No in-app purchases
Calculator HD Pro Lite
No in-app purchases
Questions
Is Prime Factorization free?
Is Calculator HD Pro Lite free?
Which has better reviews, Prime Factorization or Calculator HD Pro Lite?
Do Prime Factorization or Calculator HD Pro Lite have ads?
Which is updated more often, Prime Factorization or Calculator HD Pro Lite?
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