# gtsync vs Cairn

The clearest difference is price: Cairn at Free against gtsync's $4.99. Cairn also leads on update cadence (every 5 days vs every 2 weeks) and iOS requirement (15.0 vs 26.2). gtsync's advantage is in-app purchases (none vs 3) and ads (none vs shown). On device support there is nothing between them.

Cairn is free to download; gtsync costs $4.99 up front. Cairn sells 3 in-app purchases, starting at $1.99 per month. gtsync asks for nothing beyond the download.

gtsync ships an update every 2 weeks, Cairn every 5 days. The most recent releases landed on October 8, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | gtsync | Cairn |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/gtsync-sync-tasks-and-reminders/id6761292407/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | Paid | — |
| Best chart rank | **#119** | — |
| Size | 9 MB | 41 MB |
| Requires iOS | 26.2 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Florian Kaiser](https://appshunter.io/developer/1888709041) | [Heajung Yoo](https://appshunter.io/developer/1895444232) |

## What reviewers say

### gtsync

[App page](https://appshunter.io/ios/app/gtsync-sync-tasks-and-reminders/id6761292407)

**Currently charting:** #119 Top Paid · Productivity (US App Store)

Seamlessly synchronize your tasks and reminders between Google Tasks and Apple Reminders. This app ensures your to-do lists are always up-to-date across your devices with automatic, bi-directional syncing.

**Highlights:** Bi-directional sync, Auto-discovery of lists, Conflict resolution, Activity log, Background sync, Siri Shortcuts

**Features:** macOS Compatibility

**In-app purchases:** none


### Cairn

[App page](https://appshunter.io/ios/app/cairn/id6767776784)

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cairn Pro Monthly | $1.99 | per month |
| Cairn Pro yearly | $12.99 | per year |
| Cairn Pro - Ad-free forever | $0.99 | one-time |


## Frequently asked questions

### Is gtsync free?

gtsync costs $4.99, with no in-app purchases.

### Is Cairn free?

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

### Do gtsync or Cairn have ads?

Cairn shows ads; gtsync does not.

### Which is updated more often, gtsync or Cairn?

gtsync ships an update every 2 weeks, and Cairn every 5 days. Most recently, gtsync was updated on October 8, 2026 and Cairn on October 12, 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.*