# Sum Is vs Drop & Fuse

The clearest difference is in-app purchases: Sum Is at none against Drop & Fuse's 9. Drop & Fuse's advantage is update cadence (every 3 weeks vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Drop & Fuse sells 9 one-off in-app purchases. Sum Is asks for nothing beyond the download.

Sum Is ships an update every 4 months, Drop & Fuse every 3 weeks. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Sum Is | Drop & Fuse |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (7 ratings)](https://appshunter.io/ios/app/drop-and-fuse/id6761551537/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 43 MB | 165 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Vijay Kumar Meena](https://appshunter.io/developer/1502353944) | [Dimension Technics](https://appshunter.io/developer/372972949) |

## 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


### Drop & Fuse

[App page](https://appshunter.io/ios/app/drop-and-fuse/id6761551537)

Experience a unique 3D puzzle game with rope-dropping physics. Swing, aim, and merge cute items across three distinct themes. Utilize power-ups and daily rewards to achieve the ultimate merge and boost your high score.

**Highlights:** Unique rope-dropping physics, Real 3D item interactions, Three distinct visual themes, In-game power-ups, Daily rewards and boosters

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter Pack | $1.99 | one-time |
| Gem Pack 50 | $1.99 | one-time |
| Advanced Pack | $3.99 | one-time |
| Gem Pack 120 | $3.99 | one-time |
| Ad Free | $4.99 | one-time |
| Ad Free Bundle | $5.99 | one-time |
| Mega Pack | $6.99 | one-time |
| Gem Pack 300 | $7.99 | one-time |
| Gem Pack 700 | $12.99 | one-time |


## Frequently asked questions

### Is Sum Is free?

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

### Is Drop & Fuse free?

Drop & Fuse is free to download, with in-app purchases available.

### Do Sum Is or Drop & Fuse have ads?

Both Sum Is and Drop & Fuse show ads.

### Which is updated more often, Sum Is or Drop & Fuse?

Sum Is ships an update every 4 months, and Drop & Fuse every 3 weeks. Most recently, Sum Is was updated on October 25, 2026 and Drop & Fuse on October 31, 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.*