# Mental Chronometry vs Dinkytoon Interactive Stories

The clearest difference is in-app purchases: Mental Chronometry at none against Dinkytoon Interactive Stories's 1. Mental Chronometry also leads on price ($0.99 vs $1.99). Dinkytoon Interactive Stories's advantage is update cadence (every 11 days vs every 42 months). On ads, device support and iOS requirement there is nothing between them.

Mental Chronometry costs $0.99 and Dinkytoon Interactive Stories $1.99 up front. Dinkytoon Interactive Stories sells 1 one-off in-app purchase. Mental Chronometry asks for nothing beyond the download.

Mental Chronometry ships an update every 42 months, Dinkytoon Interactive Stories every 11 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Mental Chronometry | Dinkytoon Interactive Stories |
| --- | --- | --- |
| Price | **$0.99** | $1.99 |
| Rating | — | **[4.6 (16 ratings)](https://appshunter.io/ios/app/dinkytoon-interactive-stories/id6737738926/reviews)** |
| Number of ratings | — | **16** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 42 months | **Every 11 days** |
| Monetization | — | Free with in-app purchases |
| Size | 201 MB | 655 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Paul Cohen](https://appshunter.io/developer/908777603) | [Craig Peck](https://appshunter.io/developer/1777684551) |

## What reviewers say

### Mental Chronometry

[App page](https://appshunter.io/ios/app/mental-chronometry/id1574095844)

**Features:** macOS Compatibility

**In-app purchases:** none


### Dinkytoon Interactive Stories

[App page](https://appshunter.io/ios/app/dinkytoon-interactive-stories/id6737738926)

Embark on a magical adventure with an adorable baby elephant in this beautifully animated interactive story. Inspired by a classic nursery rhyme, this app blends engaging music and simple gameplay for independent exploration and learning.

**Highlights:** Handcrafted original story with high-quality animations, Inspired by 'Twinkle, Twinkle, Little Star', Engaging musical elements for learning through play, Simple and intuitive gameplay for independent play, Interactive environments and characters, Ad-free experience

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Levels | $0.99 | one-time |


## Frequently asked questions

### Is Mental Chronometry free?

Mental Chronometry costs $0.99, with no in-app purchases.

### Is Dinkytoon Interactive Stories free?

Dinkytoon Interactive Stories costs $1.99, and also offers in-app purchases.

### Do Mental Chronometry or Dinkytoon Interactive Stories have ads?

Neither Mental Chronometry nor Dinkytoon Interactive Stories shows ads.

### Which is updated more often, Mental Chronometry or Dinkytoon Interactive Stories?

Mental Chronometry ships an update every 42 months, and Dinkytoon Interactive Stories every 11 days. Most recently, Mental Chronometry was updated on October 25, 2026 and Dinkytoon Interactive Stories on October 24, 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.*