# SpeedJack 21 vs EngStory

The clearest difference is ads: EngStory at none against SpeedJack 21's shown. EngStory also leads on update cadence (every 5 days vs fortnightly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SpeedJack 21 ships an update fortnightly, EngStory every 5 days. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | SpeedJack 21 | EngStory |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/speedjack-21/id1511287771/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 5 days** |
| Monetization | Ad-supported | — |
| Size | 86 MB | 77 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [KwangRim Ahn](https://appshunter.io/developer/1511287770) | [Mingu Jeon](https://appshunter.io/developer/1684291294) |

## What reviewers say

### SpeedJack 21

[App page](https://appshunter.io/ios/app/speedjack-21/id1511287771)

Practice your blackjack basic strategy with this educational app. Achieve consecutive correct answers to rank your time record on the server and improve your casino winning average.

**Highlights:** Blackjack basic strategy practice, Consecutive correct answer challenge, Server-based time ranking, Improve casino winning average, User sign-in required for challenges

**Features:** macOS Compatibility

**In-app purchases:** none


### EngStory

[App page](https://appshunter.io/ios/app/engstory/id6744103729)

**In-app purchases:** none


## Frequently asked questions

### Is SpeedJack 21 free?

SpeedJack 21 is free to download, with no in-app purchases.

### Is EngStory free?

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

### Do SpeedJack 21 or EngStory have ads?

SpeedJack 21 shows ads; EngStory does not.

### Which is updated more often, SpeedJack 21 or EngStory?

SpeedJack 21 ships an update fortnightly, and EngStory every 5 days. Most recently, SpeedJack 21 was updated on November 3, 2026 and EngStory on October 28, 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.*