# Dinosaur World vs Math Key

The clearest difference is price: Dinosaur World at Free against Math Key's $1.99. Dinosaur World also leads on iOS requirement (13.0 vs 17.0). Math Key's advantage is in-app purchases (none vs 4) and update cadence (every 3 weeks vs every 2 months). On ads and device support there is nothing between them.

Dinosaur World is free to download; Math Key costs $1.99 up front. Dinosaur World sells 4 in-app purchases, starting at $6.99 per month. Math Key asks for nothing beyond the download.

Dinosaur World ships an update every 2 months, Math Key every 3 weeks. The most recent releases landed on October 20, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Dinosaur World | Math Key |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[3.9 (55 ratings)](https://appshunter.io/ios/app/dinosaur-world-dinosaurs/id992325607/reviews)** | — |
| Number of ratings | **55** | — |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 189 MB | 1 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [BABYBUS CO.,LTD](https://appshunter.io/developer/463401192) | [1STGROUP PRIVATE LIMITED](https://appshunter.io/developer/6773183984) |

## What reviewers say

### Dinosaur World

[App page](https://appshunter.io/ios/app/dinosaur-world-dinosaurs/id992325607)

Explore the prehistoric world by digging for dinosaur bones, discovering new species, and caring for baby dinosaurs. Learn fun facts about various dinosaurs through colorful scenarios and cute animations.

**Highlights:** Dig for dinosaur bones, Discover new dinosaur species, Care for baby dinosaurs, Learn dinosaur facts, Colorful scenarios and animations, Interactive play with dinosaurs

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 连续包月 | $6.99 | per month |
| 连续包年 | $41.99 | per year |
| 一个月会员 | $4.99 | one-time |
| 一年会员 | $29.99 | one-time |


### Math Key

[App page](https://appshunter.io/ios/app/math-key/id6790252476)

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

**In-app purchases:** none


## Frequently asked questions

### Is Dinosaur World free?

Dinosaur World is free to download, with in-app purchases available.

### Is Math Key free?

Math Key costs $1.99, with no in-app purchases.

### Do Dinosaur World or Math Key have ads?

Neither Dinosaur World nor Math Key shows ads.

### Which is updated more often, Dinosaur World or Math Key?

Dinosaur World ships an update every 2 months, and Math Key every 3 weeks. Most recently, Dinosaur World was updated on October 20, 2026 and Math Key on October 28, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*