# Studd ID vs Linea

The clearest difference is in-app purchases: Studd ID at none against Linea's 1. Studd ID also leads on device support (3 vs 1). Linea's advantage is update cadence (every 2 days vs monthly). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Linea sells 1 one-off in-app purchase. Studd ID asks for nothing beyond the download.

Studd ID ships an update monthly, Linea every 2 days. The most recent releases landed on October 3, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Studd ID | Linea |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Size | 38 MB | 2 MB |
| Requires iOS | **15.1** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [NetNordic Solutions AS](https://appshunter.io/developer/1477830116) | [Lene Nordheggen](https://appshunter.io/developer/1896400274) |

## What reviewers say

### Studd ID

[App page](https://appshunter.io/ios/app/studd-id/id6447625599)

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

**In-app purchases:** none


### Linea

[App page](https://appshunter.io/ios/app/linea-age-tracker/id6767146079)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Linea Pro | $5.99 | one-time |


## Frequently asked questions

### Is Studd ID free?

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

### Is Linea free?

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

### Do Studd ID or Linea have ads?

Neither Studd ID nor Linea shows ads.

### Which is updated more often, Studd ID or Linea?

Studd ID ships an update monthly, and Linea every 2 days. Most recently, Studd ID was updated on October 3, 2026 and Linea on September 29, 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.*