# Card Stack vs Blitz Speed

The clearest difference is in-app purchases: Card Stack at none against Blitz Speed's 1. Card Stack also leads on update cadence (every 3 days vs every 2 weeks) and iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Blitz Speed sells 1 one-off in-app purchase. Card Stack asks for nothing beyond the download.

Card Stack ships an update every 3 days, Blitz Speed every 2 weeks. Both last shipped on September 29, 2026.

## The numbers

| Metric | Card Stack | Blitz Speed |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 days** | Every 2 weeks |
| Size | 127 MB | 9 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Furkan Savas](https://appshunter.io/developer/1840487666) | [SHOTARO TAKAHASHI](https://appshunter.io/developer/6777748605) |

## What reviewers say

### Card Stack

[App page](https://appshunter.io/ios/app/card-stack-up-or-down/id6782604201)

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

**In-app purchases:** none


### Blitz Speed

[App page](https://appshunter.io/ios/app/blitz-speed/id6794324543)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is Card Stack free?

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

### Is Blitz Speed free?

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

### Do Card Stack or Blitz Speed have ads?

Both Card Stack and Blitz Speed show ads.

### Which is updated more often, Card Stack or Blitz Speed?

Card Stack ships an update every 3 days, and Blitz Speed every 2 weeks. Most recently, Card Stack was updated on September 29, 2026 and Blitz Speed on September 29, 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.*