# Stack Master vs ACAAT CHRONOMASTER

The clearest difference is price: Stack Master at $24.99 against ACAAT CHRONOMASTER's $69.99. Stack Master also leads on in-app purchases (none vs 2) and chart position (#200 vs unranked). ACAAT CHRONOMASTER's advantage is rating (5.0 vs 3.8) and update cadence (every 3 days vs every 3 weeks). On ads, monetization model and device support there is nothing between them.

Stack Master costs $24.99 and ACAAT CHRONOMASTER $69.99 up front. ACAAT CHRONOMASTER sells 2 one-off in-app purchases. Stack Master asks for nothing beyond the download.

ACAAT CHRONOMASTER holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: Stack Master has 9 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 83% of Stack Master's written reviews are positive against 100% of ACAAT CHRONOMASTER's.

Stack Master ships an update every 3 weeks, ACAAT CHRONOMASTER every 3 days. The most recent releases landed on September 7, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Stack Master | ACAAT CHRONOMASTER |
| --- | --- | --- |
| Price | **$24.99** | $69.99 |
| Rating | [3.8 (9 ratings)](https://appshunter.io/ios/app/stack-master/id1272229335/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/acaat-chronomaster/id1513813745/reviews)** |
| Number of ratings | **9** | 1 |
| Positive reviews | 83.3% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Paid | Paid |
| Best chart rank | **#200** | — |
| Size | 36 MB | 8 MB |
| Requires iOS | **11.0** | 17.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | +4 |
| Developer | [Devious-Monkey](https://appshunter.io/developer/388388527) | [sebastien macak](https://appshunter.io/developer/1330334721) |

## What reviewers say

### Stack Master

[App page](https://appshunter.io/ios/app/stack-master/id1272229335)

**Currently charting:** #200 Top Paid · Entertainment (US App Store)

Master your favorite card stacks with this mobile training application. It offers multiple training modes and challenges to analyze your weaknesses and improve your learning curve. Supports various pre-set and custom stacks.

**Highlights:** Multiple training modes, 18 funny challenges, Supports pre-set stacks, Create custom stacks, Publish scores and compare with friends, Specialized training modules

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

**In-app purchases:** none


### ACAAT CHRONOMASTER

[App page](https://appshunter.io/ios/app/acaat-chronomaster/id1513813745)

This app allows users to force card positions and numbers within stacks, offering multiple input methods and advanced customization. It supports integrations with other platforms and provides developers with an API for custom solutions.

**Highlights:** Stack forcing, Number forcing, Remote control input, Lockscreen input, Multi-forcing up to 3 numbers, Pre-record numbers, Webhook integration

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| acaat watch compagnon | $19.99 | one-time |
| ACAAT Appclip config | $22.99 | one-time |


## Frequently asked questions

### Is Stack Master free?

Stack Master costs $24.99, with no in-app purchases.

### Is ACAAT CHRONOMASTER free?

ACAAT CHRONOMASTER costs $69.99, and also offers in-app purchases.

### Which has better reviews, Stack Master or ACAAT CHRONOMASTER?

ACAAT CHRONOMASTER is rated higher. Stack Master averages 3.8 out of 5 from 9 ratings, while ACAAT CHRONOMASTER averages 5.0 from 1 ratings.

### Do Stack Master or ACAAT CHRONOMASTER have ads?

Neither Stack Master nor ACAAT CHRONOMASTER shows ads.

### Which is updated more often, Stack Master or ACAAT CHRONOMASTER?

Stack Master ships an update every 3 weeks, and ACAAT CHRONOMASTER every 3 days. Most recently, Stack Master was updated on September 7, 2026 and ACAAT CHRONOMASTER on September 26, 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.*