# Twelver vs USECS

The clearest difference is iOS requirement: USECS at 12.0 against Twelver's 15.1. On price, update cadence, 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.

Twelver ships an update every 6 weeks, USECS monthly. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Twelver | USECS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Size | 47 MB | 75 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [The Mainstay Foundation (UK)](https://appshunter.io/developer/1579334002) | [USECS (SMC-PRIVATE) LIMITED](https://appshunter.io/developer/1896760260) |

## What reviewers say

### Twelver

[App page](https://appshunter.io/ios/app/twelver/id6747648010)

**Features:** macOS Compatibility

**In-app purchases:** none


### USECS

[App page](https://appshunter.io/ios/app/usecs/id6770668514)

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

**In-app purchases:** none


## Frequently asked questions

### Is Twelver free?

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

### Is USECS free?

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

### Do Twelver or USECS have ads?

Neither Twelver nor USECS shows ads.

### Which is updated more often, Twelver or USECS?

Twelver ships an update every 6 weeks, and USECS monthly. Most recently, Twelver was updated on October 28, 2026 and USECS 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.*