# Sum Is vs Block Basic Triangle

The clearest difference is in-app purchases: Sum Is at none against Block Basic Triangle's 5. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Block Basic Triangle sells 5 one-off in-app purchases. Sum Is asks for nothing beyond the download.

Sum Is ships an update every 4 months, Block Basic Triangle every 2 months. The most recent releases landed on October 25, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Sum Is | Block Basic Triangle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (7 ratings)](https://appshunter.io/ios/app/block-basic-triangle/id6469026359/reviews)** |
| Number of ratings | — | **7** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | — | Free with in-app purchases |
| Size | 43 MB | 126 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vijay Kumar Meena](https://appshunter.io/developer/1502353944) | [RACKGYUN LIM](https://appshunter.io/developer/1617024411) |

## What reviewers say

### Sum Is

[App page](https://appshunter.io/ios/app/sum-is/id1548187986)

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

**In-app purchases:** none


### Block Basic Triangle

[App page](https://appshunter.io/ios/app/block-basic-triangle/id6469026359)

A classic puzzle game where players drag triangle blocks onto a board to form shapes. It offers over 700 levels and is designed to be fun, brain-developing, and an engaging way to pass the time.

**Highlights:** Over 700 levels, Free hints available, Easy drag and drop gameplay, Offline play supported, Brain-developing puzzles, Cute design

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hint 10 | $1.99 | one-time |
| Hint 20 | $2.99 | one-time |
| Ads Free | $3.99 | one-time |
| Hint 50 | $5.99 | one-time |
| Hint 100 | $9.99 | one-time |


## Frequently asked questions

### Is Sum Is free?

Sum Is is free to download, with no in-app purchases.

### Is Block Basic Triangle free?

Block Basic Triangle is free to download, with in-app purchases available.

### Do Sum Is or Block Basic Triangle have ads?

Both Sum Is and Block Basic Triangle show ads.

### Which is updated more often, Sum Is or Block Basic Triangle?

Sum Is ships an update every 4 months, and Block Basic Triangle every 2 months. Most recently, Sum Is was updated on October 25, 2026 and Block Basic Triangle on November 3, 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.*