# Flutter vs Passed Word

The clearest difference is in-app purchases: Passed Word at none against Flutter's 12. Passed Word also leads on ads (none vs shown) and rating (5.0 vs 4.7). Flutter's advantage is ratings volume (4.7K vs 2). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Flutter sells 12 one-off in-app purchases. Passed Word asks for nothing beyond the download.

Passed Word holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Flutter has 4.7K ratings behind it against 2, so its average is the more settled of the two.

Flutter ships an update every 8 days, Passed Word every 3 days. The most recent releases landed on October 16, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Flutter | Passed Word |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (4.7K ratings)](https://appshunter.io/ios/app/flutter-butterfly-sanctuary/id564007552/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/passed-word/id6473484021/reviews)** |
| Number of ratings | **4.7K** | 2 |
| Positive reviews | 72.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 8 days | **Every 3 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 567 MB | 43 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Runaway](https://appshunter.io/developer/1042800793) | [Case of Bolts LLC](https://appshunter.io/developer/1719045195) |

## What reviewers say

### Flutter

[App page](https://appshunter.io/ios/app/flutter-butterfly-sanctuary/id564007552)

Create a vibrant rainforest sanctuary by collecting and nurturing hundreds of real butterfly species. Watch them grow through their life cycle, learn fascinating facts, and expand your magical forest with beautiful decorations. Enjoy relaxing gameplay with a calming soundtrack and discover new species through missions and events.

**Highlights:** Collect 400+ real butterfly species, Nurture butterflies through their life cycle, Expand and decorate your forest sanctuary, Engage in missions and limited-time events, Relaxing gameplay with peaceful ambiance

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

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Beetle Bank | $0.99 | one-time |
| 50 Flutterbucks | $1.99 | one-time |
| Amazing Value Pack | $1.99 | one-time |
| Starter Park 001 | $2.99 | one-time |
| Doug the Glowbug (month) | $2.99 | one-time |
| Starter Pack B | $4.99 | one-time |
| 130 Flutterbucks | $4.99 | one-time |
| Nectar Booster | $4.99 | one-time |
| Spirit Booster | $4.99 | one-time |
| 275 Flutterbucks | $9.99 | one-time |
| 700 Flutterbucks | $24.99 | one-time |
| Flower Flourisher | $24.99 | one-time |

**What reviewers like**

- 🦋 Beautiful and relaxing game
- 👍 Informative and educational
- 🎨 Gorgeous graphics and animations
- 🎶 Calming music and ambiance

**What reviewers complain about**

- 🐛 Frequent crashes and bugs
- 💰 Expensive in-app purchases and expansions
- ⏱️ Slow progression and long wait times
- 🔒 Requires constant internet connection

**Reported bugs**

- Game resets progress after updates
- Inability to access Flutterpedia and achievements
- Inconsistent performance and freezing issues

**Requested features**

- Offline mode
- Ability to sell or remove unwanted butterflies
- More interactive events and mini-games
- Expanded forest and storage space


### Passed Word

[App page](https://appshunter.io/ios/app/passed-word/id6473484021)

This game challenges players to collaboratively build a story, with each participant only seeing the previous turn's text. Once all players have contributed, the full, often surprising, narrative is revealed.

**Highlights:** Collaborative storytelling, Turn-based gameplay, Hidden previous text, Full story reveal, Multiplayer

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

**In-app purchases:** none


## Frequently asked questions

### Is Flutter free?

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

### Is Passed Word free?

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

### Which has better reviews, Flutter or Passed Word?

Passed Word is rated higher. Flutter averages 4.7 out of 5 from 4.7K ratings, while Passed Word averages 5.0 from 2 ratings.

### Do Flutter or Passed Word have ads?

Flutter shows ads; Passed Word does not.

### Which is updated more often, Flutter or Passed Word?

Flutter ships an update every 8 days, and Passed Word every 3 days. Most recently, Flutter was updated on October 16, 2026 and Passed Word on October 7, 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.*