# Big Bang vs Simon's Bacteria

The clearest difference is in-app purchases: Big Bang at none against Simon's Bacteria's 4. Big Bang also leads on update cadence (every 6 days vs every 3 weeks) and iOS requirement (14.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Simon's Bacteria sells 4 one-off in-app purchases. Big Bang asks for nothing beyond the download.

Big Bang ships an update every 6 days, Simon's Bacteria every 3 weeks. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Big Bang | Simon's Bacteria |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 3 weeks |
| Monetization | Free | — |
| Size | 85 MB | 15 MB |
| Requires iOS | **14.0** | 17.6 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Ajith Prasanna Wijesekara Ganitharathna Banjanayalage](https://appshunter.io/developer/1793761504) | [Andrei Kondratev](https://appshunter.io/developer/6786983517) |

## What reviewers say

### Big Bang

[App page](https://appshunter.io/ios/app/big-bang-multiverse/id6776590920)

Control a growing black hole, consuming everything in your path from pebbles to galaxies. Trigger a Big Bang to warp into larger universes with new challenges and cosmic objects to devour. Enjoy endless arcade action with no interruptions.

**Highlights:** One-touch drag controls, Consume cosmic objects to grow, Trigger Big Bangs to warp universes, Compete with rival black holes, Collect power-ups and prizes, Offline play supported, Unlock cosmic skins

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

**In-app purchases:** none


### Simon's Bacteria

[App page](https://appshunter.io/ios/app/simons-bacteria/id6786983515)

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Multiplayer Unlock | $0.99 | one-time |
| Small Tip | $0.99 | one-time |
| Medium Tip | $2.99 | one-time |
| Large Tip | $4.99 | one-time |


## Frequently asked questions

### Is Big Bang free?

Big Bang is free to download, with no in-app purchases.

### Is Simon's Bacteria free?

Simon's Bacteria is free to download, with in-app purchases available.

### Do Big Bang or Simon's Bacteria have ads?

Neither Big Bang nor Simon's Bacteria shows ads.

### Which is updated more often, Big Bang or Simon's Bacteria?

Big Bang ships an update every 6 days, and Simon's Bacteria every 3 weeks. Most recently, Big Bang was updated on October 31, 2026 and Simon's Bacteria on October 28, 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.*