# Abstractor vs Proref

The clearest difference is iOS requirement: Proref at 15.0 against Abstractor's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Abstractor sells 3 in-app purchases, starting at $0.99 per month and Proref sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Abstractor ships an update every 5 days, Proref every 6 days. The most recent releases landed on October 1, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Abstractor | Proref |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/abstractor/id1588227281/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 6 days |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 44 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [superdiagonal](https://appshunter.io/developer/1588227283) | [John Oliver Atienza](https://appshunter.io/developer/1526037866) |

## What reviewers say

### Abstractor

[App page](https://appshunter.io/ios/app/abstractor/id1588227281)

This drawing app uses generative magic and dynamic flow brushes to create unique, animated artwork. Explore infinite possibilities with brushes that respond to your gestures, imported images, and algorithmic patterns.

**Highlights:** Generative flow brushes, Image-driven velocity maps, Algorithmic particle behavior, Color shifting based on stroke, Layer support, Color source layers

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Access · 1 Month | $0.99 | per month |
| Premium · 1 Year | $9.99 | per year |
| All-Access | $9.99 | one-time |


### Proref

[App page](https://appshunter.io/ios/app/proref-art-reference-boards/id6802284370)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Proref Pro | $7.99 | one-time |


## Frequently asked questions

### Is Abstractor free?

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

### Is Proref free?

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

### Do Abstractor or Proref have ads?

Neither Abstractor nor Proref shows ads.

### Which is updated more often, Abstractor or Proref?

Abstractor ships an update every 5 days, and Proref every 6 days. Most recently, Abstractor was updated on October 1, 2026 and Proref on October 3, 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.*