# SphereKnight vs OUTBREAK SURVIVOR

The clearest difference is in-app purchases: OUTBREAK SURVIVOR at none against SphereKnight's 1. OUTBREAK SURVIVOR also leads on update cadence (every 2 days vs every 4 months). SphereKnight's advantage is iOS requirement (8.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. SphereKnight sells 1 one-off in-app purchase. OUTBREAK SURVIVOR asks for nothing beyond the download.

SphereKnight ships an update every 4 months, OUTBREAK SURVIVOR every 2 days. The most recent releases landed on November 3, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | SphereKnight | OUTBREAK SURVIVOR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (6 ratings)](https://appshunter.io/ios/app/sphereknight/id1287918992/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 69.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 164 MB | 16 MB |
| Requires iOS | **8.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 12+ |
| Developer | [hiroaki saito](https://appshunter.io/developer/1287918991) | [HAYATO SUZUKI](https://appshunter.io/developer/1890118485) |

## What reviewers say

### SphereKnight

[App page](https://appshunter.io/ios/app/sphereknight/id1287918992)

Control a ball-shaped knight by flicking your finger to defeat enemies and stop an invasion of chaos. Upgrade weapons, forge new armor, and master unique sword auras to progress through 33 stages and 8 boss battles. An endless mode offers continuous challenges.

**Highlights:** Flick controls for ball-shaped knight, Dash attack for enemy defeat, Master sword auras, Upgrade weapons and forge armor, 33 stages with boss battles, Endless stage run feature

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sphere Knight:ad removal | $1.99 | one-time |


### OUTBREAK SURVIVOR

[App page](https://appshunter.io/ios/app/outbreak-survivor/id6816338153)

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

**In-app purchases:** none


## Frequently asked questions

### Is SphereKnight free?

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

### Is OUTBREAK SURVIVOR free?

OUTBREAK SURVIVOR is free to download, with no in-app purchases.

### Do SphereKnight or OUTBREAK SURVIVOR have ads?

Both SphereKnight and OUTBREAK SURVIVOR show ads.

### Which is updated more often, SphereKnight or OUTBREAK SURVIVOR?

SphereKnight ships an update every 4 months, and OUTBREAK SURVIVOR every 2 days. Most recently, SphereKnight was updated on November 3, 2026 and OUTBREAK SURVIVOR on October 26, 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.*