Primality vs Elaborate Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Primality
This app determines if a given integer is prime or provides its prime factors. It also calculates the ordinal position of prime numbers found, up to a certain limit.
- Primality testing
- Prime factorization
- Prime ordinality calculation
- Large integer support (up to 999,999,999,999)
- Clean and simple interface
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The Primality App has a clean and simple, yet powerful, function: Given any integer, the app determines either that the given integer is prime or else it provides all prime factors of that integer. Very clean, very simple, focussed. The app operates in the range of 0 - 999,999,999,999. A popular feature of the app is its ability to determine the prime ordinality of each prime found, such as observing that 97 if the 25th prime. (However, this particular feature is available only up to the 100,000th prime, which is 1,299,709.) Requires iOS 13 or higher.
Elaborate Calculator
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A visual wrapper for IVY on the go. For large difficult calculations or when in need of arbitrary precision. Optimized for small screens and without needing something else to run your equations. MIT Source https://github.com/BrandonRoehl/elaborate
Screenshots
Verdict
The clearest difference is update cadence: Primality at every 2 months against Elaborate Calculator's every 4 months. Primality also leads on iOS requirement (13.2 vs 18.0). On price, ads, 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.
Primality ships an update every 2 months, Elaborate Calculator every 4 months. The most recent releases landed on September 9, 2026 and September 13, 2026 respectively.
| Parameter | Primality | Elaborate Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (24 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 24 — better | — |
| Update frequency | Every 2 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, Mac — better |
| Requires iOS | 13.2 — better | 18.0 |
| Further details — not scored | ||
| Size | 1 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Bruce Schechter | Brandon Roehl |
In-app purchases
Primality
No in-app purchases
Elaborate Calculator
No in-app purchases
Questions
Is Primality free?
Is Elaborate Calculator free?
Do Primality or Elaborate Calculator have ads?
Which is updated more often, Primality or Elaborate Calculator?
Other comparisons
