# Cell to Singularity vs H2O Academy

The clearest difference is in-app purchases: H2O Academy at none against Cell to Singularity's 21. H2O Academy also leads on ads (none vs shown) and rating (5.0 vs 4.8). Cell to Singularity's advantage is ratings volume (23K vs 1) and chart position (#174 vs unranked). On price and device support there is nothing between them.

Both are free to download. Cell to Singularity sells 17 one-off in-app purchases. H2O Academy asks for nothing beyond the download.

H2O Academy holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Cell to Singularity has 23K ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | Cell to Singularity | H2O Academy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (23K ratings)](https://appshunter.io/ios/app/cell-to-singularity-evolution/id1327555461/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/h2o-academy/id1662161180/reviews)** |
| Number of ratings | **23K** | 1 |
| Positive reviews | 82.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | — |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#174** | — |
| Size | 494 MB | 63 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Computer Lunch](https://appshunter.io/developer/1287171333) | [Dargan M. Frierson](https://appshunter.io/developer/1209897089) |

## What reviewers say

### Cell to Singularity

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

**Currently charting:** #174 Top Free · Strategy, #174 Top Grossing · Strategy, #199 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


### H2O Academy

[App page](https://appshunter.io/ios/app/h2o-academy/id1662161180)

Prepare for your Level 1 Water Treatment Plant Operator exam with this app. It focuses exclusively on the math required, offering clear explanations and unlimited practice problems with hints and answers. Test your knowledge with quizzes designed for practical application.

**Highlights:** Targeted math topics for Level 1 exam, Explanations of math concepts, Step-by-step problem-solving guides, Unlimited practice problems, Hints and answers for practice, Knowledge testing quizzes

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Cell to Singularity free?

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

### Is H2O Academy free?

H2O Academy is free to download, with no in-app purchases.

### Which has better reviews, Cell to Singularity or H2O Academy?

H2O Academy is rated higher. Cell to Singularity averages 4.8 out of 5 from 23K ratings, while H2O Academy averages 5.0 from 1 ratings.

### Do Cell to Singularity or H2O Academy have ads?

Cell to Singularity shows ads; H2O Academy does not.

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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.*