# Stack Trainer vs Nikud Keyboard

The clearest difference is rating: Nikud Keyboard at 4.0 against Stack Trainer's 1.0. Nikud Keyboard also leads on review sentiment (40% vs 0%) and in-app purchases (none vs 2). On update cadence, ads, device support and iOS requirement there is nothing between them.

Stack Trainer costs $3.99 and Nikud Keyboard $1.99 up front. Stack Trainer sells 2 in-app purchases, starting at $1.99 per 3 months. Nikud Keyboard asks for nothing beyond the download.

Nikud Keyboard holds the better App Store score, 4.0 against 1.0. That said, the two scores are not equally well evidenced: Nikud Keyboard has 21 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Stack Trainer's written reviews are positive against 40% of Nikud Keyboard's.

Stack Trainer ships an update every 3 months, Nikud Keyboard every 2 months. The most recent releases landed on August 28, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Stack Trainer | Nikud Keyboard |
| --- | --- | --- |
| Price | $3.99 | **$1.99** |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/stack-trainer/id646458442/reviews) | **[4.0 (21 ratings)](https://appshunter.io/ios/app/nikud-keyboard/id1570902547/reviews)** |
| Number of ratings | 1 | **21** |
| Positive reviews | 0.0% of reviews | **40.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Subscription | **Paid** |
| Size | 6 MB | 18 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ralph Cos](https://appshunter.io/developer/573505028) | [Pierre Janineh](https://appshunter.io/developer/1567754380) |

## What reviewers say

### Stack Trainer

[App page](https://appshunter.io/ios/app/stack-trainer/id646458442)

This app provides a realistic card deck experience for close-up magicians to train their memory of card stacks. It offers various challenge modes and filters to aid learning and practice, with a focus on a clean, distraction-free interface.

**Highlights:** Realistic card deck simulation, Multiple mnemonic training approaches, Customizable stack filters, Lorrayne's peg words integration, Interactive quick-touch analyzer, Display and whisper modes

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3 Months Subscription | $1.99 | per 3 months |
| Annual Subscription | $2.99 | per year |


### Nikud Keyboard

[App page](https://appshunter.io/ios/app/nikud-keyboard/id1570902547)

This custom keyboard enhances your Hebrew typing with a full set of Nikud characters for accuracy and tradition. Customize font size and layout for a seamless, user-friendly experience across all your apps.

**Highlights:** Comprehensive Nikud characters, Customizable font size and layout, Seamless integration as default keyboard, User-centric design for easy navigation, Enhanced Hebrew text readability

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Stack Trainer free?

Stack Trainer costs $3.99, and also offers in-app purchases.

### Is Nikud Keyboard free?

Nikud Keyboard costs $1.99, with no in-app purchases.

### Which has better reviews, Stack Trainer or Nikud Keyboard?

Nikud Keyboard is rated higher. Stack Trainer averages 1.0 out of 5 from 1 ratings, while Nikud Keyboard averages 4.0 from 21 ratings.

### Do Stack Trainer or Nikud Keyboard have ads?

Neither Stack Trainer nor Nikud Keyboard shows ads.

### Which is updated more often, Stack Trainer or Nikud Keyboard?

Stack Trainer ships an update every 3 months, and Nikud Keyboard every 2 months. Most recently, Stack Trainer was updated on August 28, 2026 and Nikud Keyboard on September 21, 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.*