# Shape Theory vs Solve Ten

The clearest difference is ads: Solve Ten at none against Shape Theory's shown. Shape Theory's advantage is iOS requirement (18.6 vs 26.4). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Shape Theory sells 3 in-app purchases, starting at $0.99 per month and Solve Ten sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Shape Theory ships an update every 3 weeks, Solve Ten every 2 weeks. The most recent releases landed on September 9, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Shape Theory | Solve Ten |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 13 MB | 1 MB |
| Requires iOS | **18.6** | 26.4 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bulltech](https://appshunter.io/developer/1586482702) | [Syuhei Higashizono](https://appshunter.io/developer/1207601525) |

## What reviewers say

### 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 |


### Solve Ten

[App page](https://appshunter.io/ios/app/solve-ten/id6762054752)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| UNLOCK ENDLESS | $0.99 | one-time |


## Frequently asked questions

### Is Shape Theory free?

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

### Is Solve Ten free?

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

### Do Shape Theory or Solve Ten have ads?

Shape Theory shows ads; Solve Ten does not.

### Which is updated more often, Shape Theory or Solve Ten?

Shape Theory ships an update every 3 weeks, and Solve Ten every 2 weeks. Most recently, Shape Theory was updated on September 9, 2026 and Solve Ten on September 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.*