# Luna Lines vs Understudy

The clearest difference is iOS requirement: Understudy at 14.0 against Luna Lines's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Luna Lines sells 2 in-app purchases, starting at $4.99 per month and Understudy sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Luna Lines ships an update every 3 weeks, Understudy monthly. The most recent releases landed on September 13, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Luna Lines | Understudy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (11 ratings)](https://appshunter.io/ios/app/luna-lines-actor-app/id6475893524/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 25 MB | 42 MB |
| Requires iOS | 26.0 | **14.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Luna Technologies Inc.](https://appshunter.io/developer/1725367224) | [Shingo Otsuhata](https://appshunter.io/developer/1871224706) |

## What reviewers say

### Luna Lines

[App page](https://appshunter.io/ios/app/luna-lines-actor-app/id6475893524)

This app helps actors memorize scripts by recording lines for themselves and other characters. It offers customizable repetition cycles and seamless playback control, even with wireless earbuds and smartwatches.

**Highlights:** Record lines for self and others, Customizable repetition cycles, Seamless playback control, AirPods and Apple Watch integration, CarPlay support

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lines Pro | $4.99 | per month |
| Lines Pro | $19.99 | per year |


### Understudy

[App page](https://appshunter.io/ios/app/understudy-learn-your-lines/id6758158317)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy me a coffee | $0.99 | one-time |
| Add a donut | $1.99 | one-time |
| Add a sandwich | $3.99 | one-time |


## Frequently asked questions

### Is Luna Lines free?

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

### Is Understudy free?

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

### Do Luna Lines or Understudy have ads?

Neither Luna Lines nor Understudy shows ads.

### Which is updated more often, Luna Lines or Understudy?

Luna Lines ships an update every 3 weeks, and Understudy monthly. Most recently, Luna Lines was updated on September 13, 2026 and Understudy on September 14, 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.*