# Rolly Vortex vs Knife vs Balls

The clearest difference is ads: Knife vs Balls at none against Rolly Vortex's shown. Knife vs Balls also leads on update cadence (every 3 weeks vs every 4 months) and iOS requirement (9.0 vs 14.0). Rolly Vortex's advantage is ratings volume (305K vs 29) and rating (4.6 vs 4.3). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Rolly Vortex sells 10 one-off in-app purchases and Knife vs Balls sells 10 in-app purchases, starting at $4.49 per 7 days. Whichever you choose, the download price is not the number that matters.

Rolly Vortex holds the better App Store score, 4.6 against 4.3. That said, the two scores are not equally well evidenced: Rolly Vortex has 305K ratings behind it against 29, so its average is the more settled of the two. Written reviews point the same way: 53% of Rolly Vortex's written reviews are positive against 33% of Knife vs Balls's.

Rolly Vortex ships an update every 4 months, Knife vs Balls every 3 weeks. The most recent releases landed on October 21, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Rolly Vortex | Knife vs Balls |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (305K ratings)](https://appshunter.io/ios/app/rolly-vortex/id1231932402/reviews)** | [4.3 (29 ratings)](https://appshunter.io/ios/app/knife-vs-balls/id1451495364/reviews) |
| Number of ratings | **305K** | 29 |
| Positive reviews | **52.7% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 203 MB | 210 MB |
| Requires iOS | 14.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Voodoo](https://appshunter.io/developer/714804730) | [Ketchapp](https://appshunter.io/developer/528065807) |

## What reviewers say

### Rolly Vortex

[App page](https://appshunter.io/ios/app/rolly-vortex/id1231932402)

Navigate a rolling ball through an ever-changing obstacle course. Test your reflexes and precision to achieve high scores and compete with friends.

**Highlights:** Fast-paced rolling gameplay, Obstacle avoidance challenges, High score tracking, Challenge friends, Intuitive controls

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Deer | $0.99 | one-time |
| The Panda | $0.99 | one-time |
| The Elephant | $0.99 | one-time |
| The Giraffe | $0.99 | one-time |
| The Lion | $0.99 | one-time |
| The Lioness | $0.99 | one-time |
| The Rhino | $0.99 | one-time |
| The Zebra | $0.99 | one-time |
| Remove Ads | $2.99 | one-time |
| Unlock The Zoo Characters | $4.99 | one-time |

**What reviewers like**

- 🚀 Addictive and fun gameplay
- 👍 Relaxing and stress-relieving
- 🎨 Customizable balls and vortexes

**What reviewers complain about**

- 🔍 Too many ads and pop-ups
- 🐛 Frequent glitches and crashes
- 🔋 Vibration issues causing distraction
- 🤯 Frustratingly difficult at times

**Reported bugs**

- Game freezing and crashing
- Leaderboard and progress not saving properly
- Ads playing even after paying to remove them

**Requested features**

- More challenging levels and modes
- Ability to turn off vibrations completely
- Offline play without ads
- Additional customization options


### Knife vs Balls

[App page](https://appshunter.io/ios/app/knife-vs-balls/id1451495364)

Engage in an addictive ball-slicing challenge by throwing knives to defeat bosses and collect a variety of blades. Play daily for rewards and compete globally for the highest score.

**Highlights:** Endless challenge mode, Over 60 knives to collect, More than 30 bosses to defeat, Daily rewards, Global high score competition

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Vip Offer | $4.49 | per 7 days |
| Banana | $0.99 | one-time |
| Kunaï | $1.99 | one-time |
| Pinch of Coins | $2.99 | one-time |
| Sharp Finger | $2.99 | one-time |
| No ads | $3.99 | one-time |
| Magic Wand | $3.99 | one-time |
| Spinny Gun | $5.99 | one-time |
| Mjöllnir | $7.99 | one-time |
| Pixel Sword | $13.99 | one-time |


## Frequently asked questions

### Is Rolly Vortex free?

Rolly Vortex is free to download, with in-app purchases available.

### Is Knife vs Balls free?

Knife vs Balls is free to download, with in-app purchases available.

### Which has better reviews, Rolly Vortex or Knife vs Balls?

Rolly Vortex is rated higher. Rolly Vortex averages 4.6 out of 5 from 305K ratings, while Knife vs Balls averages 4.3 from 29 ratings.

### Do Rolly Vortex or Knife vs Balls have ads?

Rolly Vortex shows ads; Knife vs Balls does not.

### Which is updated more often, Rolly Vortex or Knife vs Balls?

Rolly Vortex ships an update every 4 months, and Knife vs Balls every 3 weeks. Most recently, Rolly Vortex was updated on October 21, 2026 and Knife vs Balls on October 11, 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.*