# Spill Zone vs Shape Theory

The clearest difference is update cadence: Shape Theory at every 3 weeks against Spill Zone's every 2 months. Spill Zone's advantage is iOS requirement (11.0 vs 18.6). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Spill Zone sells 4 one-off in-app purchases and Shape Theory sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Spill Zone ships an update every 2 months, Shape Theory every 3 weeks. The most recent releases landed on October 21, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Spill Zone | Shape Theory |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (30 ratings)](https://appshunter.io/ios/app/spill-zone/id896251878/reviews)** | — |
| Number of ratings | **30** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 41 MB | 13 MB |
| Requires iOS | **11.0** | 18.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [TMSOFT](https://appshunter.io/developer/288669797) | [Bulltech](https://appshunter.io/developer/1586482702) |

## What reviewers say

### Spill Zone

[App page](https://appshunter.io/ios/app/spill-zone/id896251878)

This puzzle game challenges players to merge chemical spills until the entire board is a single color. Strategize to solve puzzles in the fewest moves possible, with daily challenges and multiplayer options.

**Highlights:** 200 unique puzzle levels, Daily challenge puzzles, Turn-based multiplayer, Create and share custom puzzles, No timer for strategic play, Earn stars for hints and unlocks

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 Lives | $0.99 | one-time |
| 100 Stars | $0.99 | one-time |
| Oil | $0.99 | one-time |
| Special Chemical | $0.99 | one-time |

**What reviewers like**

- 👍 Addictive and fun gameplay
- 🧠 Great brain training
- 💡 Unique puzzle mechanics
- 👨‍👩‍👧‍👦 Family-friendly entertainment
- ⏱️ Good time killer

**What reviewers complain about**

- 🤔 Maddeningly difficult at times
- 💡 Hints are expensive/not helpful
- 📶 Requires Wi-Fi for some features

**Requested features**

- More challenges/levels
- More helpful/cheaper hints
- Messaging ability between players
- Dark mode option


### Shape Theory

[App page](https://appshunter.io/ios/app/shape-theory-brain-puzzles/id6449924079)

Uncover hidden geometric shapes by strategically revealing parts of a concealed form. Deduce the correct shape from a list of suspects to advance through increasingly challenging levels. Compete globally for the top leaderboard spot.

**Highlights:** Shape discovery through limited reveals, Strategic deduction of hidden forms, Progressive difficulty levels, Minimalist, captivating graphics, Global leaderboard competition, Brain teaser and strategy gameplay

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads For 1 Month | $0.99 | per month |
| No Ads For 1 Year | $4.99 | per year |
| No Ads Forever | $8.99 | one-time |


## Frequently asked questions

### Is Spill Zone free?

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

### Is Shape Theory free?

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

### Do Spill Zone or Shape Theory have ads?

Both Spill Zone and Shape Theory show ads.

### Which is updated more often, Spill Zone or Shape Theory?

Spill Zone ships an update every 2 months, and Shape Theory every 3 weeks. Most recently, Spill Zone was updated on October 21, 2026 and Shape Theory on October 12, 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.*