# p vs Curvia

The clearest difference is in-app purchases: p at none against Curvia's 1. Curvia's advantage is update cadence (every 4 days vs every 5 months) and iOS requirement (16.0 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. Curvia sells 1 one-off in-app purchase. p asks for nothing beyond the download.

p ships an update every 5 months, Curvia every 4 days. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | p | Curvia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/p-adelic/id6764312694/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 12 MB | 9 MB |
| Requires iOS | 18.6 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [PracticallyZen, LLC](https://appshunter.io/developer/1833874358) | [rainwe games Co., Ltd.](https://appshunter.io/developer/1796960010) |

## What reviewers say

### p

[App page](https://appshunter.io/ios/app/p-adelic/id6764312694)

Visualize numbers in their real and p-adic completions simultaneously. Explore digits in base p, analyze algebraic numbers, and delve into special functions. Offers a library of examples and is designed for privacy.

**Highlights:** Adelic strip visualization, Streaming precision up to 200 digits, Analysis of algebraic numbers and polynomials, Deep dive into number theory concepts, Library of worked examples, On-device computation for privacy

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

**In-app purchases:** none


### Curvia

[App page](https://appshunter.io/ios/app/curvia/id6783280425)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Curvia Pro | $2.99 | one-time |


## Frequently asked questions

### Is p free?

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

### Is Curvia free?

Curvia is free to download, with in-app purchases available.

### Do p or Curvia have ads?

Neither p nor Curvia shows ads.

### Which is updated more often, p or Curvia?

p ships an update every 5 months, and Curvia every 4 days. Most recently, p was updated on October 19, 2026 and Curvia on October 24, 2026.

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