# Prime Factorization vs ClockTide

The clearest difference is price: Prime Factorization at Free against ClockTide's $0.99. Prime Factorization also leads on in-app purchases (none vs 1) and ads (none vs shown). ClockTide's advantage is update cadence (every 10 days vs every 3 months). On device support there is nothing between them.

Prime Factorization is free to download; ClockTide costs $0.99 up front. ClockTide sells 1 one-off in-app purchase. Prime Factorization asks for nothing beyond the download.

Prime Factorization ships an update every 3 months, ClockTide every 10 days. The most recent releases landed on September 30, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Prime Factorization | ClockTide |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.4 (5 ratings)](https://appshunter.io/ios/app/prime-factorization/id528980227/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 10 days** |
| Monetization | Free | — |
| Size | 2 MB | 20 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [Sohei Mori](https://appshunter.io/developer/528980270) | [KANG LI](https://appshunter.io/developer/1853344231) |

## What reviewers say

### Prime Factorization

[App page](https://appshunter.io/ios/app/prime-factorization/id528980227)

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.

**Highlights:** Prime factorization of integers, Calculate number of divisors, Sum of divisors calculation, List all divisors, Identify prime numbers, Identify perfect, abundant, deficient numbers

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### ClockTide

[App page](https://appshunter.io/ios/app/clocktide/id6755859312)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| clockflow_lifetime_099 | $0.99 | one-time |


## Frequently asked questions

### Is Prime Factorization free?

Prime Factorization is free to download, with no in-app purchases.

### Is ClockTide free?

ClockTide costs $0.99, and also offers in-app purchases.

### Do Prime Factorization or ClockTide have ads?

ClockTide shows ads; Prime Factorization does not.

### Which is updated more often, Prime Factorization or ClockTide?

Prime Factorization ships an update every 3 months, and ClockTide every 10 days. Most recently, Prime Factorization was updated on September 30, 2026 and ClockTide on September 17, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*