# Theta vs Dircode lock

The clearest difference is update cadence: Dircode lock at every 6 weeks against Theta's every 31 months. Theta's advantage is device support (4 vs 2) and iOS requirement (14.0 vs 16.0). On price, ads and in-app purchases there is nothing between them.

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

Theta ships an update every 31 months, Dircode lock every 6 weeks. The most recent releases landed on September 16, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Theta | Dircode lock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 31 months | **Every 6 weeks** |
| Size | 8 MB | 38 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mikhail Fedorov](https://appshunter.io/developer/714735606) | [Anton Poletaev](https://appshunter.io/developer/1896055196) |

## What reviewers say

### Theta

[App page](https://appshunter.io/ios/app/theta-meter/id1541332058)

**In-app purchases:** none


### Dircode lock

[App page](https://appshunter.io/ios/app/dircode-lock/id6765741629)

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

**In-app purchases:** none


## Frequently asked questions

### Is Theta free?

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

### Is Dircode lock free?

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

### Do Theta or Dircode lock have ads?

Neither Theta nor Dircode lock shows ads.

### Which is updated more often, Theta or Dircode lock?

Theta ships an update every 31 months, and Dircode lock every 6 weeks. Most recently, Theta was updated on September 16, 2026 and Dircode lock on September 8, 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.*