# Hestelex vs Big Bang

The clearest difference is update cadence: Big Bang at every 3 weeks against Hestelex's every 7 months. Hestelex's advantage is iOS requirement (10.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Hestelex ships an update every 7 months, Big Bang every 3 weeks. The most recent releases landed on October 19, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Hestelex | Big Bang |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Size | 87 MB | 95 MB |
| Requires iOS | **10.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SEGES Innovation P/S](https://appshunter.io/developer/1647185001) | [Astra - det nationale naturfagscenter](https://appshunter.io/developer/1874255472) |

## What reviewers say

### Hestelex

[App page](https://appshunter.io/ios/app/hestelex/id1450487613)

**In-app purchases:** none


### Big Bang

[App page](https://appshunter.io/ios/app/big-bang/id6758663076)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Hestelex free?

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

### Is Big Bang free?

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

### Do Hestelex or Big Bang have ads?

Neither Hestelex nor Big Bang shows ads.

### Which is updated more often, Hestelex or Big Bang?

Hestelex ships an update every 7 months, and Big Bang every 3 weeks. Most recently, Hestelex was updated on October 19, 2026 and Big Bang on October 5, 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.*