# KrypCity vs Double Holo

The clearest difference is rating: Double Holo at 4.8 against KrypCity's 1.0. Double Holo also leads on ratings volume (1.6K vs 1) and chart position (#14 vs unranked). KrypCity's advantage is in-app purchases (none vs 10) and update cadence (daily vs weekly). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. Double Holo sells 10 in-app purchases, starting at $2.99 per 7 days. KrypCity asks for nothing beyond the download.

Double Holo holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: Double Holo has 1.6K ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 50% and 49% positive.

KrypCity ships an update daily, Double Holo weekly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | KrypCity | Double Holo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/krypcity/id6736624504/reviews) | **[4.8 (1.6K ratings)](https://appshunter.io/ios/app/double-holo-card-scanner/id6759494054/reviews)** |
| Number of ratings | 1 | **1.6K** |
| Positive reviews | **50.0% of reviews** | 49.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Weekly |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#14** |
| Size | 40 MB | 246 MB |
| Requires iOS | **13.4** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 12+ |
| Developer | [Web3 Dev Company](https://appshunter.io/developer/1772707902) | [Double Holo Inc.](https://appshunter.io/developer/1879043477) |

## What reviewers say

### KrypCity

[App page](https://appshunter.io/ios/app/krypcity/id6736624504)

A Web3 marketplace for purchasing real estate, vehicles, and other items using cryptocurrency. Earn rewards on every transaction through CryptoTradingFund.

**Highlights:** Buy real estate with cryptocurrency, Purchase cars with cryptocurrency, Shop for various items, Earn rewards on purchases, Powered by CryptoTradingFund, Web3 marketplace

**Features:** macOS Compatibility

**In-app purchases:** none


### Double Holo

[App page](https://appshunter.io/ios/app/double-holo-card-scanner/id6759494054)

**Currently charting:** #14 Top Grossing · Shopping (US App Store)

A modern marketplace and intelligence platform for trading card collectors. Buy and sell cards with low fees, and utilize premium tools for market analysis, price forecasting, and collection management. Stop guessing and start making confident collecting decisions.

**Highlights:** Low seller fees (4.9%), Curated card recommendations, Reddit sentiment analysis, Pack value analysis, Grading ROI analysis, AI-powered price forecasting, Real-time portfolio tracking

**Features:** Apple Wallet

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Smart Collector | $2.99 | per 7 days |
| Serious Collector | $5.99 | per 7 days |
| Smart Collector Monthly | $9.99 | per month |
| Essentials Monthly | $14.99 | per month |
| Serious Collector Monthly | $22.99 | per month |
| Vendor Basic | $24.99 | per month |
| Growth Monthly | $26.99 | per month |
| Smart Collector Annual | $59.99 | per year |
| Serious Collector Annual | $199.99 | per year |
| Vendor Basic | $199.99 | per year |


## Frequently asked questions

### Is KrypCity free?

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

### Is Double Holo free?

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

### Which has better reviews, KrypCity or Double Holo?

Double Holo is rated higher. KrypCity averages 1.0 out of 5 from 1 ratings, while Double Holo averages 4.8 from 1.6K ratings.

### Do KrypCity or Double Holo have ads?

Neither KrypCity nor Double Holo shows ads.

### Which is updated more often, KrypCity or Double Holo?

KrypCity ships an update daily, and Double Holo weekly. Most recently, KrypCity was updated on October 30, 2026 and Double Holo on October 31, 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.*