# Let'Swift vs Ummisae

The clearest difference is update cadence: Ummisae at every 3 days against Let'Swift's every 3 months. Let'Swift's advantage is device support (3 vs 1). On price, review sentiment, 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.

Let'Swift ships an update every 3 months, Ummisae every 3 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Let'Swift | Ummisae |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/letswift/id1282995254/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 43 MB | 48 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Codesquad Inc.](https://appshunter.io/developer/1329598481) | [HYE ON JO](https://appshunter.io/developer/6777644739) |

## What reviewers say

### Let'Swift

[App page](https://appshunter.io/ios/app/letswift/id1282995254)

This app provides official conference information, including schedules and reminders. It's an open-source project built with SwiftUI, allowing users to view and contribute to the source code. Requires iOS 17, WatchOS 11.6 or later.

**Highlights:** Conference schedule access, Add schedule to calendar, Event reminders, Open-source code access, Feedback and issue submission

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Ummisae

[App page](https://appshunter.io/ios/app/ummisae-mother-daughter/id6808722953)

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

**In-app purchases:** none


## Frequently asked questions

### Is Let'Swift free?

Let'Swift is free to download, with no in-app purchases.

### Is Ummisae free?

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

### Do Let'Swift or Ummisae have ads?

Neither Let'Swift nor Ummisae shows ads.

### Which is updated more often, Let'Swift or Ummisae?

Let'Swift ships an update every 3 months, and Ummisae every 3 days. Most recently, Let'Swift was updated on October 24, 2026 and Ummisae on October 28, 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.*