# A Chain Reaction vs Cell to Singularity

The clearest difference is ads: A Chain Reaction at none against Cell to Singularity's shown. A Chain Reaction also leads on iOS requirement (7.0 vs 15.0). Cell to Singularity's advantage is update cadence (every 2 weeks vs every 5 months) and ratings volume (23K vs 50). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. A Chain Reaction sells 1 one-off in-app purchase and Cell to Singularity sells 17 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Cell to Singularity holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Cell to Singularity has 23K ratings behind it against 50, so its average is the more settled of the two. Written reviews point the same way: 72% of A Chain Reaction's written reviews are positive against 82% of Cell to Singularity's.

A Chain Reaction ships an update every 5 months, Cell to Singularity every 2 weeks. The most recent releases landed on October 14, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | A Chain Reaction | Cell to Singularity |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (50 ratings)](https://appshunter.io/ios/app/a-chain-reaction/id528254256/reviews) | **[4.8 (23K ratings)](https://appshunter.io/ios/app/cell-to-singularity-evolution/id1327555461/reviews)** |
| Number of ratings | 50 | **23K** |
| Positive reviews | 71.8% of reviews | **82.2% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | — | **#150** |
| Size | 58 MB | 498 MB |
| Requires iOS | **7.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Kwok Chun Hin](https://appshunter.io/developer/446734044) | [Computer Lunch](https://appshunter.io/developer/1287171333) |

## What reviewers say

### A Chain Reaction

[App page](https://appshunter.io/ios/app/a-chain-reaction/id528254256)

Engage in a chain reaction puzzle game where you trigger explosions by tapping the screen.  Complete various objectives across multiple game modes, from classic levels to infinite challenges.

**Highlights:** Chain reaction explosions, Multiple game modes, Classic mode with 8 levels, Sudden Death infinite levels, Perfectionist mode, Chaos mode, Dodge mode

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $0.99 | one-time |

**What reviewers like**

- 👍 Captivating gameplay
- 🎨 Peaceful and relaxing
- 💎 Addictive and fun
- 🕹️ Simple but engaging

**What reviewers complain about**

- 🔍 Limited levels/content
- 💰 Paywall for additional content
- 🔍 Repetitive gameplay
- 📢 Intrusive ads

**Reported bugs**

- Compatibility issues with older devices
- Crashes and freezes on some devices

**Requested features**

- More levels and variations
- Ability to retry individual levels
- Additional color themes
- Improved audio/music options


### Cell to Singularity

[App page](https://appshunter.io/ios/app/cell-to-singularity-evolution/id1327555461)

**Currently charting:** #150 Top Free · Strategy, #165 Top Grossing · Strategy, #184 Top Grossing · Simulation (US App Store)

Embark on an evolutionary journey from a single cell to a technological singularity. Tap to gain entropy, unlock new chapters of life, and witness milestones like dinosaur extinction and the Industrial Revolution. Explore the past, present, and future of humanity in this engaging idle clicker game.

**Highlights:** Evolutionary clicker gameplay, Gain Entropy currency, Unlock chapters of life, Climb Tech Tree, View 3D habitats, Discover scientific facts, Simulate life on Earth

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

**In-app purchases (17)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Darwinium Bundle | $0.99 | one-time |
| 50 Cubes | $1.99 | one-time |
| Starter Bundle | $2.99 | one-time |
| Darwinium Bundle | $2.99 | one-time |
| Special Offer | $2.99 | one-time |
| Special Offer | $3.99 | one-time |
| Darwinium Bundle | $4.99 | one-time |
| 150 Cubes | $4.99 | one-time |
| Special Offer | $4.99 | one-time |
| Darwinium Bundle | $6.99 | one-time |
| Special Offer | $7.99 | one-time |
| 300 Cubes | $7.99 | one-time |
| Darwinium Bundle | $9.99 | one-time |
| Infinity Pass (30 Days) | $12.99 | one-time |
| Infinity Pass | $12.99 | one-time |
| 900 Cubes | $19.99 | one-time |
| Special Offer | $19.99 | one-time |

**What reviewers like**

- 🚀 Awesome game!
- 🚀 Amazing still
- 🚀 Best game ever
- 🚀 Very relaxing simple game packed with nicely designed content
- 🚀 Genuinely Brilliant

**What reviewers complain about**

- 🐛 Lengthy but worth the read
- 🐛 Ads
- 🐛 Stolen logits
- 🐛 Ads too long
- 🐛 Too many LONG ads

**Reported bugs**

- Stopped getting metabits after simulation 11
- Mesozoic Valley simulation is bugged
- Crashes when loading data from server
- Rapid buy feature removed in update
- Ads not working properly

**Requested features**

- Add pls
- More in the Beyond
- More galaxies, planets, and stars in the Beyond
- Add insects, plants, and other animal groups
- Add a facility to turn off planet/star titles


## Frequently asked questions

### Is A Chain Reaction free?

A Chain Reaction is free to download, with in-app purchases available.

### Is Cell to Singularity free?

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

### Which has better reviews, A Chain Reaction or Cell to Singularity?

Cell to Singularity is rated higher. A Chain Reaction averages 4.6 out of 5 from 50 ratings, while Cell to Singularity averages 4.8 from 23K ratings.

### Do A Chain Reaction or Cell to Singularity have ads?

Cell to Singularity shows ads; A Chain Reaction does not.

### Which is updated more often, A Chain Reaction or Cell to Singularity?

A Chain Reaction ships an update every 5 months, and Cell to Singularity every 2 weeks. Most recently, A Chain Reaction was updated on October 14, 2026 and Cell to Singularity on October 19, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*