# CAL Select vs Curio

The clearest difference is review sentiment: Curio at 67% against CAL Select's 0%. Curio also leads on price (Free vs $10.99) and update cadence (weekly vs every 5 months). CAL Select's advantage is ads (none vs shown). On in-app purchases, device support and iOS requirement there is nothing between them.

Curio is free to download; CAL Select costs $10.99 up front. CAL Select sells 3 one-off in-app purchases and Curio sells 9 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

CAL Select ships an update every 5 months, Curio weekly. The most recent releases landed on October 14, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | CAL Select | Curio |
| --- | --- | --- |
| Price | $10.99 | **Free** |
| Rating | — | **[4.8 (17K ratings)](https://appshunter.io/ios/app/curio-antique-identifier/id6520380757/reviews)** |
| Number of ratings | — | **17K** |
| Positive reviews | 0.0% of reviews | **66.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | — | **#37** |
| Size | 53 MB | 87 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Colorix SA](https://appshunter.io/developer/372237429) | [Dionysus Labs, LLC](https://appshunter.io/developer/1738854903) |

## What reviewers say

### CAL Select

[App page](https://appshunter.io/ios/app/cal-select/id464801087)

This app is a digital color specifier for professionals, allowing users to instantly apply selected colors to images. It helps decorators, sign makers, and others find exact or similar color tones from leading brands of adhesive films, saving time and providing visual confirmation on objects.

**Highlights:** Digital color specifier, Integrates leading adhesive film brands, Apply selected colors to images, Instant color reference numbers and RGB values, Find identical or similar color tones, Compatible with COLORCATCH NANO

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RAL CLASSIC | $1.99 | one-time |
| RAL DESIGN | $5.99 | one-time |
| NCS®© | $9.99 | one-time |


### Curio

[App page](https://appshunter.io/ios/app/curio-antique-identifier/id6520380757)

**Currently charting:** #37 Top Grossing · Reference, #59 Top Free · Reference (US App Store)

Identify, understand, and value your antiques with just a photo. Get instant identification, historical context, and estimated market value for your treasures. Organize your collection and explore similar items online.

**Highlights:** Instant antique identification by photo, Detailed historical context and origin, Estimated market value appraisals, Visual matches for online comparison, Personal antique collection management, Exportable collection data

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | per 7 days |
| Premium | $6.99 | per 7 days |
| Premium Weekly | $6.99 | per 7 days |
| Premium | $9.99 | per month |
| Premium | $19.99 | per year |
| Premium | $29.99 | per year |
| Premium | $39.99 | per year |
| Premium | $49.99 | per year |
| Premium Lifetime | $49.99 | one-time |

**What reviewers like**

- 👍 Accurate identification
- 💡 Helpful for antique lovers
- 🚀 Efficient and user-friendly
- 🔍 Useful for small businesses
- 🧠 Impressive knowledge base

**What reviewers complain about**

- 💰 Expensive subscription model
- 🔍 Limited free scans
- 🤖 Inconsistent AI accuracy
- 🤔 Inability to select scan area

**Reported bugs**

- Inaccurate identification
- Crashes and errors

**Requested features**

- Free tier with ads
- Unlimited free scans
- Zoom and region selection
- Improved AI accuracy


## Frequently asked questions

### Is CAL Select free?

CAL Select costs $10.99, and also offers in-app purchases.

### Is Curio free?

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

### Do CAL Select or Curio have ads?

Curio shows ads; CAL Select does not.

### Which is updated more often, CAL Select or Curio?

CAL Select ships an update every 5 months, and Curio weekly. Most recently, CAL Select was updated on October 14, 2026 and Curio on October 22, 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.*