# Block Tower vs DiffMaster

The clearest difference is rating: DiffMaster at 4.0 against Block Tower's 2.0. DiffMaster also leads on update cadence (every 3 weeks vs every 3 months) and iOS requirement (15.0 vs 26.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Block Tower sells 10 in-app purchases, starting at $1.99 per 7 days and DiffMaster sells 9 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

DiffMaster holds the better App Store score, 4.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Block Tower ships an update every 3 months, DiffMaster every 3 weeks. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Block Tower | DiffMaster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (1 ratings)](https://appshunter.io/ios/app/block-tower-stack-builder/id1146253957/reviews) | **[4.0 (1 ratings)](https://appshunter.io/ios/app/diffmaster-spot-difference/id6778729497/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 98 MB | 150 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sandeep Bhandari](https://appshunter.io/developer/794284640) | [GoEun Choi](https://appshunter.io/developer/1526619924) |

## What reviewers say

### Block Tower

[App page](https://appshunter.io/ios/app/block-tower-stack-builder/id1146253957)

Build a taller tower by dropping blocks at the right moment. Save shaky stacks and chase a perfect streak. Enjoy focused gameplay with no mid-run ad breaks, and track your progress with home screen widgets.

**Highlights:** One-tap block drops, Wobble-Save mechanic, Multiple game modes (Classic, Wind, Earthquake), Customizable skins and themes, Home Screen and Lock Screen widgets, Haptics and Sound Effects control

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $1.99 | per 7 days |
| Pro Weekly | $4.99 | per 7 days |
| Monthly Subscription | $4.99 | per month |
| Yearly Subscription Discount | $14.99 | per year |
| Yearly Subscription Sale | $14.99 | per year |
| Yearly Subscription Special | $19.99 | per year |
| Pro Annual | $29.99 | per year |
| Yearly Subscription | $29.99 | per year |
| Forever Pro Discount | $79.99 | one-time |
| Forever Pro | $99.99 | one-time |


### DiffMaster

[App page](https://appshunter.io/ios/app/diffmaster-spot-difference/id6778729497)

This game offers a relaxing visual puzzle experience with charming illustrations and no time pressure. It's designed for casual gamers seeking a stress-free way to unwind and enjoy a gentle brain workout, playable offline anywhere.

**Highlights:** Calm and relaxing gameplay with no timer, Gentle brain workout, Cute and cozy artwork, Playable offline anywhere, Continuous new content updates, Easy zoom feature for detailed inspection

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 2,700 Coins | $0.99 | one-time |
| Beginner Package | $1.99 | one-time |
| 5,400 Coins | $1.99 | one-time |
| Remove Pop-up Ads | $3.99 | one-time |
| Premium Package | $4.99 | one-time |
| 15,000 Coins | $4.99 | one-time |
| 27,000 Coins | $4.99 | one-time |
| 35,000 Coins | $9.99 | one-time |
| 60,000 Coins | $9.99 | one-time |


## Frequently asked questions

### Is Block Tower free?

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

### Is DiffMaster free?

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

### Which has better reviews, Block Tower or DiffMaster?

DiffMaster is rated higher. Block Tower averages 2.0 out of 5 from 1 ratings, while DiffMaster averages 4.0 from 1 ratings.

### Do Block Tower or DiffMaster have ads?

Both Block Tower and DiffMaster show ads.

### Which is updated more often, Block Tower or DiffMaster?

Block Tower ships an update every 3 months, and DiffMaster every 3 weeks. Most recently, Block Tower was updated on November 6, 2026 and DiffMaster on November 5, 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.*