# HyperRef vs Sanzo Palette

The clearest difference is in-app purchases: Sanzo Palette at none against HyperRef's 1. Sanzo Palette also leads on rating (5.0 vs 4.7). HyperRef's advantage is device support (3 vs 1). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. HyperRef sells 1 one-off in-app purchase. Sanzo Palette asks for nothing beyond the download.

Sanzo Palette holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | HyperRef | Sanzo Palette |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (3 ratings)](https://appshunter.io/ios/app/hyperref/id6743102705/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/sanzo-palette/id6755197266/reviews)** |
| Number of ratings | **3** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 12 MB | 6 MB |
| Requires iOS | 18.6 | **18.0** |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Seth Kenneth Berggren](https://appshunter.io/developer/1801346715) | [ERIK SEBASTIAN DE ERICE JEREZ](https://appshunter.io/developer/1852528289) |

## What reviewers say

### HyperRef

[App page](https://appshunter.io/ios/app/hyperref/id6743102705)

Create and organize your personal art reference library with powerful import and study tools. Analyze images by value, contrast, and color, and track your artistic progress with attached studies. Secure your sensitive collections with biometric protection.

**Highlights:** Web import for bulk image saving, Analyze images by value, contrast, color, Timed practice and study modes, Attach sketches to references, Biometric collection protection, Smart collections and organization, Offline access with iCloud sync

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HyperRef Pro | $4.99 | one-time |


### Sanzo Palette

[App page](https://appshunter.io/ios/app/sanzo-palette/id6755197266)

Explore hundreds of harmonious color palettes inspired by a renowned color dictionary. Extract colors from images, save favorites, and share combinations with original book layouts. Works offline for designers, artists, and color enthusiasts.

**Highlights:** Curated color combinations, Search by name or ID, Extract palettes from pictures, Save favorite colors, Offline functionality, Share color data

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

**In-app purchases:** none


## Frequently asked questions

### Is HyperRef free?

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

### Is Sanzo Palette free?

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

### Which has better reviews, HyperRef or Sanzo Palette?

Sanzo Palette is rated higher. HyperRef averages 4.7 out of 5 from 3 ratings, while Sanzo Palette averages 5.0 from 2 ratings.

### Do HyperRef or Sanzo Palette have ads?

Neither HyperRef nor Sanzo Palette shows ads.

### Which is updated more often, HyperRef or Sanzo Palette?

HyperRef ships an update every 2 months, and Sanzo Palette every 2 months. Most recently, HyperRef was updated on November 4, 2026 and Sanzo Palette on October 30, 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.*