# Cell VS Virus vs Efemeris

The clearest difference is price: Cell VS Virus at Free against Efemeris's $3.99. Cell VS Virus also leads on update cadence (every 2 weeks vs every 8 months) and iOS requirement (6.0 vs 15.0). Efemeris's advantage is in-app purchases (none vs 4). On ads and device support there is nothing between them.

Cell VS Virus is free to download; Efemeris costs $3.99 up front. Cell VS Virus sells 4 one-off in-app purchases. Efemeris asks for nothing beyond the download.

Cell VS Virus ships an update every 2 weeks, Efemeris every 8 months. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Cell VS Virus | Efemeris |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[4.5 (156 ratings)](https://appshunter.io/ios/app/cell-vs-virus/id880120788/reviews)** | — |
| Number of ratings | **156** | — |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 8 months |
| Monetization | Free with in-app purchases | — |
| Size | 68 MB | 130 MB |
| Requires iOS | **6.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [景弘 王](https://appshunter.io/developer/660167348) | [DTDA Games](https://appshunter.io/developer/1291540307) |

## What reviewers say

### Cell VS Virus

[App page](https://appshunter.io/ios/app/cell-vs-virus/id880120788)

Engage in an epic strategic tower defense battle between cells and viruses. Command cute characters in a dual role of offense and defense across numerous stimulating levels. Collect and upgrade diverse roles to overcome challenges and unlock new themes.

**Highlights:** Strategic tower defense gameplay, Dual role offense and defense characters, Role collection and upgrades, 36 stimulating levels, Star collection and unlocking, Diverse role combinations, Beautiful theme transformations

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 200 energy | $1.99 | one-time |
| 440 energy | $3.99 | one-time |
| 1040 energy | $7.99 | one-time |
| 2400 energy | $15.99 | one-time |

**What reviewers like**

- 👍 Fun and enjoyable gameplay
- 💡 Unique game mechanics
- 🤩 Cute graphics and characters
- 🧠 Educational aspects
- ⏳ Good time killer

**What reviewers complain about**

- 🐛 Crashing issues
- 📉 Difficulty spikes
- 🌐 Download problems
- ❓ Translation issues
- ⚖️ Unfair CPU powers

**Reported bugs**

- Game keeps crashing
- Download issues
- Translation is a bit off

**Requested features**

- Faster updates
- More levels
- New cells and viruses
- Level editor
- More characters


### Efemeris

[App page](https://appshunter.io/ios/app/efemeris/id1667323204)

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

**In-app purchases:** none


## Frequently asked questions

### Is Cell VS Virus free?

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

### Is Efemeris free?

Efemeris costs $3.99, with no in-app purchases.

### Do Cell VS Virus or Efemeris have ads?

Neither Cell VS Virus nor Efemeris shows ads.

### Which is updated more often, Cell VS Virus or Efemeris?

Cell VS Virus ships an update every 2 weeks, and Efemeris every 8 months. Most recently, Cell VS Virus was updated on November 1, 2026 and Efemeris on November 7, 2026.

---

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