# FlashInvaders vs Twenty Campus

The clearest difference is review sentiment: FlashInvaders at 77% against Twenty Campus's 3%. FlashInvaders also leads on rating (4.9 vs 1.0) and ads (none vs shown). Twenty Campus's advantage is update cadence (every 3 weeks vs every 11 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

FlashInvaders holds the better App Store score, 4.9 against 1.0. That said, the two scores are not equally well evidenced: FlashInvaders has 903 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 77% of FlashInvaders's written reviews are positive against 3% of Twenty Campus's.

FlashInvaders ships an update every 11 months, Twenty Campus every 3 weeks. Both last shipped on October 15, 2026.

## The numbers

| Metric | FlashInvaders | Twenty Campus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (903 ratings)](https://appshunter.io/ios/app/flashinvaders/id895180919/reviews)** | [1.0 (9 ratings)](https://appshunter.io/ios/app/twenty-campus/id1395193765/reviews) |
| Number of ratings | **903** | 9 |
| Positive reviews | **76.6% of reviews** | 2.5% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 11 months | **Every 3 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 20 MB | 34 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [flash invaders](https://appshunter.io/developer/895180922) | [Sergic](https://appshunter.io/developer/1121168367) |

## What reviewers say

### FlashInvaders

[App page](https://appshunter.io/ios/app/flashinvaders/id895180919)

Discover and document street art mosaics globally. Scan artwork to add it to your personal gallery, earn points, and track your progress. Share your finds and compete with friends.

**Highlights:** Discover street art mosaics, Scan and document artwork, Personal mosaic gallery, Share discoveries on social media, Follow friends' scores, Live worldwide flash stream

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

**In-app purchases:** none

**What reviewers like**

- 👍 Fun and engaging app
- 🚀 Great for exploring cities
- 👾 Clever concept
- 💥 Motivates users to discover art
- 🌍 Encourages travel and discovery

**What reviewers complain about**

- 🐛 Validation/recognition issues
- 🚫 Inability to upload existing photos
- 🤖 Glitchy and unreliable
- 🚫 Accounts getting banned/blocked

**Reported bugs**

- Camera not working
- Login/sign-up issues
- Crashes and black screens
- Inability to restore lost galleries

**Requested features**

- Ability to upload existing photos
- Improved validation and recognition
- Geolocation support for damaged invaders
- Higher zoom levels
- More invaders in different regions


### Twenty Campus

[App page](https://appshunter.io/ios/app/twenty-campus/id1395193765)

Manage your student accommodation with ease. Track rent payments, report maintenance issues, connect with support, and access important documents related to your living space.

**Highlights:** Manage personal account, Track rent payments, Report accommodation problems, Contact support, Access flat documents

**In-app purchases:** none


## Frequently asked questions

### Is FlashInvaders free?

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

### Is Twenty Campus free?

Twenty Campus is free to download, with no in-app purchases.

### Which has better reviews, FlashInvaders or Twenty Campus?

FlashInvaders is rated higher. FlashInvaders averages 4.9 out of 5 from 903 ratings, while Twenty Campus averages 1.0 from 9 ratings.

### Do FlashInvaders or Twenty Campus have ads?

Twenty Campus shows ads; FlashInvaders does not.

### Which is updated more often, FlashInvaders or Twenty Campus?

FlashInvaders ships an update every 11 months, and Twenty Campus every 3 weeks. Most recently, FlashInvaders was updated on October 15, 2026 and Twenty Campus on October 15, 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.*