# Lua vs HeadsUpDaddy

The clearest difference is in-app purchases: Lua at none against HeadsUpDaddy's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. HeadsUpDaddy sells 1 one-off in-app purchase. Lua asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on October 4, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Lua | HeadsUpDaddy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 days | Every 4 days |
| Size | 2 MB | 11 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 12+ | 17+ |
| Developer | [Brianna Orellana](https://appshunter.io/developer/1881815145) | [WakeSys sarl](https://appshunter.io/developer/1769788757) |

## What reviewers say

### Lua

[App page](https://appshunter.io/ios/app/lua-cycle-tracker/id6759943330)

**Features:** macOS Compatibility

**In-app purchases:** none


### HeadsUpDaddy

[App page](https://appshunter.io/ios/app/headsupdaddy/id6802102690)

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $2.99 | one-time |


## Frequently asked questions

### Is Lua free?

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

### Is HeadsUpDaddy free?

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

### Do Lua or HeadsUpDaddy have ads?

Neither Lua nor HeadsUpDaddy shows ads.

### Which is updated more often, Lua or HeadsUpDaddy?

Lua ships an update every 4 days, and HeadsUpDaddy every 4 days. Most recently, Lua was updated on October 4, 2026 and HeadsUpDaddy on October 25, 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.*