# Words Collide vs Energy Transformers

The clearest difference is review sentiment: Energy Transformers at 80% against Words Collide's 38%. Energy Transformers also leads on in-app purchases (none vs 19) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Words Collide sells 19 one-off in-app purchases. Energy Transformers asks for nothing beyond the download.

Words Collide ships an update every 2 months, Energy Transformers every 3 days. The most recent releases landed on October 18, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Words Collide | Energy Transformers |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (299 ratings)](https://appshunter.io/ios/app/words-collide/id1450105874/reviews)** | — |
| Number of ratings | **299** | — |
| Positive reviews | 37.7% of reviews | **80.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 146 MB | 258 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Lamington Games Pty Ltd](https://appshunter.io/developer/1186154557) | [Chaos Theory Games](https://appshunter.io/developer/1129029720) |

## What reviewers say

### Words Collide

[App page](https://appshunter.io/ios/app/words-collide/id1450105874)

Engage in a clever word-building game where you arrange letters to spell words. Collaborate with friends, discover new vocabulary, and aim for high scores through strategic combos. Unlock upgrades and enjoy different game modes.

**Highlights:** Solo or cooperative play, Zen and Adventure modes, Combo construction for high scores, In-game dictionary for word learning, Letter arrangement for word spelling, Unlockable upgrades (letters, hints, combos)

**Features:** Vision Pro support

**In-app purchases (19)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sale Spectral Boutique Card | $1.99 | one-time |
| Sale Spectral Robot Card | $1.99 | one-time |
| Sale Spectral Wooden Card | $1.99 | one-time |
| Sale Banded Tennis Card | $1.99 | one-time |
| Small Coin Pack | $1.99 | one-time |
| Sale Spectral Gold Bar Card | $1.99 | one-time |
| Sale Shiny Candle Card | $1.99 | one-time |
| Sale Spectral Glass Card | $1.99 | one-time |
| Sale Banded Robot Card | $1.99 | one-time |
| Sale Spectral Tennis Card | $1.99 | one-time |
| Classic Boutique Card | $2.99 | one-time |
| ClassicWooden Card | $2.99 | one-time |
| Classic Glass Card | $2.99 | one-time |
| ClassicRounded Card | $2.99 | one-time |
| Classic Candle Card | $2.99 | one-time |
| Starter Pack | $3.99 | one-time |
| Classic Attic Background | $3.99 | one-time |
| Medium Coin Pack | $4.99 | one-time |
| Large Coin Pack | $9.99 | one-time |

**What reviewers like**

- 🚀 Addictive gameplay
- 👍 Cute and visually appealing
- 🚀 Smooth and responsive
- 🔒 No forced ads
- 👍 Cooperative multiplayer

**What reviewers complain about**

- 🐛 Progress resets/lost
- 🐛 Buggy and unstable
- 🐛 Orientation issues
- 🐛 Unreliable word recognition
- 🐛 Confusing cascade feature

**Reported bugs**

- Game resets progress on app close
- Crashes and freezes on launch
- Inability to save progress
- Broken co-op game invitations
- Sound issues and muting

**Requested features**

- Add ability to change username
- Improve tutorial and instructions
- Implement cloud/account sync
- Add more word list options
- Improve friend/multiplayer functionality


### Energy Transformers

[App page](https://appshunter.io/ios/app/energy-transformers/id6465132278)

An educational game where players explore Australia to learn about renewable energy, air pollution, and climate solutions. Team up with a character from the future to make choices that reduce pollution and power the country sustainably.

**Highlights:** Learn about renewable energy, Explore Australia virtually, Understand climate solutions, Answer multiple-choice challenges, Collect fast facts and news nuggets, Make sustainable energy choices

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Words Collide free?

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

### Is Energy Transformers free?

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

### Do Words Collide or Energy Transformers have ads?

Words Collide shows ads; Energy Transformers does not.

### Which is updated more often, Words Collide or Energy Transformers?

Words Collide ships an update every 2 months, and Energy Transformers every 3 days. Most recently, Words Collide was updated on October 18, 2026 and Energy Transformers on October 2, 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.*