# Star2 Random Defense(S2RD) vs Grades Puzzle

The clearest difference is in-app purchases: Grades Puzzle at none against Star2 Random Defense(S2RD)'s 10. Grades Puzzle also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.0). Star2 Random Defense(S2RD)'s advantage is update cadence (weekly vs every 5 months). On price and device support there is nothing between them.

Both are free to download. Star2 Random Defense(S2RD) sells 10 one-off in-app purchases. Grades Puzzle asks for nothing beyond the download.

Star2 Random Defense(S2RD) ships an update weekly, Grades Puzzle every 5 months. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Star2 Random Defense(S2RD) | Grades Puzzle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.4 (5 ratings)](https://appshunter.io/ios/app/star2-random-defenses2rd/id6739694467/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 26.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 584 MB | 96 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 12+ |
| Developer | [Springcomes Co., Ltd.](https://appshunter.io/developer/1151454258) | [Hieu Hoang](https://appshunter.io/developer/1108291419) |

## What reviewers say

### Star2 Random Defense(S2RD)

[App page](https://appshunter.io/ios/app/star2-random-defenses2rd/id6739694467)

Experience a classic vertical strategy defense game with unpredictable battles and endless strategic possibilities. Combine random heroes, utilize a deep trait system, and adapt your tactics to diverse regions. Every match offers a new adventure where luck and strategy intertwine.

**Highlights:** Random hero summons, Strategic card combinations, Over 100 unique traits, 7-tier hero progression system, Diverse regional challenges, Vertical gameplay

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| high efficiency 3d package 1 | $0.99 | one-time |
| Special Membership (28 Days) | $3.99 | one-time |
| premium membership (28 Days) | $3.99 | one-time |
| high efficiency 3d package 2 | $3.99 | one-time |
| hunting pass premium | $9.99 | one-time |
| forgotten rift premium attendance | $11.99 | one-time |
| eternal rift premium attendance | $11.99 | one-time |
| eternal rift premium pass | $22.99 | one-time |
| level pass basic 4 | $34.99 | one-time |
| level pass premium 4 | $99.99 | one-time |


### Grades Puzzle

[App page](https://appshunter.io/ios/app/grades-puzzle/id6748925132)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Star2 Random Defense(S2RD) free?

Star2 Random Defense(S2RD) is free to download, with in-app purchases available.

### Is Grades Puzzle free?

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

### Do Star2 Random Defense(S2RD) or Grades Puzzle have ads?

Star2 Random Defense(S2RD) shows ads; Grades Puzzle does not.

### Which is updated more often, Star2 Random Defense(S2RD) or Grades Puzzle?

Star2 Random Defense(S2RD) ships an update weekly, and Grades Puzzle every 5 months. Most recently, Star2 Random Defense(S2RD) was updated on October 30, 2026 and Grades Puzzle 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.*