# Robot Defender vs This is Blast!

The clearest difference is ads: Robot Defender at none against This is Blast!'s shown. Robot Defender also leads on iOS requirement (9.0 vs 15.0). This is Blast!'s advantage is update cadence (every 11 days vs every 3 weeks). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Robot Defender sells 1 one-off in-app purchase and This is Blast! sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Robot Defender ships an update every 3 weeks, This is Blast! every 11 days. The most recent releases landed on November 6, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Robot Defender | This is Blast! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (8.7K ratings)](https://appshunter.io/ios/app/this-is-blast/id6738323233/reviews)** |
| Number of ratings | — | **8.7K** |
| Positive reviews | — | 25.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 11 days** |
| Monetization | — | Free with in-app purchases |
| Size | 28 MB | 398 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | +4 |
| Developer | [Aimer Shine Co. Ltd](https://appshunter.io/developer/1032169915) | [Voodoo](https://appshunter.io/developer/714804730) |

## What reviewers say

### Robot Defender

[App page](https://appshunter.io/ios/app/robot-defender/id1293129144)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All weapon and special sets. | $0.99 | one-time |


### This is Blast!

[App page](https://appshunter.io/ios/app/this-is-blast/id6738323233)

Engage in a vibrant color-matching block shooter where you aim, tap, and blast matching colors. Overcome clever puzzles and tricky obstacles with explosive combos for a satisfying gameplay experience. Enjoy regular updates with new levels and seasonal events.

**Highlights:** Color-matching block shooter, Simple tap-to-aim mechanics, Explosive combos and chain reactions, Challenging puzzles with obstacles, Eye-catching visuals and smooth effects, Regular updates with new levels

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Special Product #1 | $0.99 | one-time |
| Small Pack | $1.99 | one-time |
| Special Product #2 | $2.99 | one-time |
| Offer #11 | $4.99 | one-time |
| Offer #6 | $4.99 | one-time |
| Offer #5 | $4.99 | one-time |
| Medium Pack | $7.99 | one-time |
| Special Product #5 | $8.99 | one-time |
| Offer #3 | $9.99 | one-time |
| Large Pack | $14.99 | one-time |

**What reviewers like**

- 👍 Fun game
- 💡 No ads
- 💡 Offline play
- 👍 Relaxing and entertaining

**What reviewers complain about**

- 🐛 Bugs and glitches
- 🐛 Inability to combine 3 blocks
- 🐛 Levels unable to be completed
- 🐛 Daily/weekly tasks not working
- 🐛 Leaderboard issues

**Reported bugs**

- Blocks not moving/clearing properly
- Game freezing/locking up
- Tutorial level not functioning
- Leagues not unlocking properly
- Daily/weekly tasks not updating

**Requested features**

- Option to turn off vibration
- More challenging levels
- Better progression system
- Ability to report bugs


## Frequently asked questions

### Is Robot Defender free?

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

### Is This is Blast! free?

This is Blast! is free to download, with in-app purchases available.

### Do Robot Defender or This is Blast! have ads?

This is Blast! shows ads; Robot Defender does not.

### Which is updated more often, Robot Defender or This is Blast!?

Robot Defender ships an update every 3 weeks, and This is Blast! every 11 days. Most recently, Robot Defender was updated on November 6, 2026 and This is Blast! on November 10, 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.*