# Sync vs Shape Theory

The clearest difference is price: Shape Theory at Free against Sync's $0.99. Shape Theory also leads on update cadence (every 3 weeks vs every 40 months). Sync's advantage is in-app purchases (none vs 3) and ads (none vs shown). On review sentiment and device support there is nothing between them.

Shape Theory is free to download; Sync costs $0.99 up front. Shape Theory sells 3 in-app purchases, starting at $0.99 per month. Sync asks for nothing beyond the download.

Sync ships an update every 40 months, Shape Theory every 3 weeks. The most recent releases landed on October 6, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Sync | Shape Theory |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.8 (33 ratings)](https://appshunter.io/ios/app/sync-ball/id356277312/reviews)** | — |
| Number of ratings | **33** | — |
| Positive reviews | 96.8% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 40 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 9 MB | 13 MB |
| Requires iOS | **12.0** | 18.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Tozai, Inc.](https://appshunter.io/developer/356277315) | [Bulltech](https://appshunter.io/developer/1586482702) |

## What reviewers say

### Sync

[App page](https://appshunter.io/ios/app/sync-ball/id356277312)

Engage your mind with a unique puzzle experience where you guide synchronized balls to designated holes using simple swipes. Navigate through increasingly complex mazes, strategically using walls to achieve your goals. Enjoy a tranquil yet stimulating challenge with 80 levels, designed for thoughtful problem-solving without time pressure.

**Highlights:** Swipe to move synchronized balls, Align balls into holes, Use maze walls for strategy, Avoid falling off the platform, Progress through 80 levels, No time limits or scores, Develop concentration and problem-solving skills

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Sync free?

Sync costs $0.99, with no in-app purchases.

### Is Shape Theory free?

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

### Do Sync or Shape Theory have ads?

Shape Theory shows ads; Sync does not.

### Which is updated more often, Sync or Shape Theory?

Sync ships an update every 40 months, and Shape Theory every 3 weeks. Most recently, Sync was updated on October 6, 2026 and Shape Theory on September 27, 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.*