# gtsync vs AI PDF Reader

The clearest difference is price: AI PDF Reader at Free against gtsync's $4.99. AI PDF Reader also leads on device support (4 vs 2) and iOS requirement (14.0 vs 26.2). gtsync's advantage is in-app purchases (none vs 4) and chart position (#112 vs unranked). On update cadence and ads there is nothing between them.

AI PDF Reader is free to download; gtsync costs $4.99 up front. AI PDF Reader sells 4 in-app purchases, starting at $0.99 per month. gtsync asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 8, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | gtsync | AI PDF Reader |
| --- | --- | --- |
| 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 | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Paid | — |
| Best chart rank | **#112** | — |
| Size | 9 MB | 226 MB |
| Requires iOS | 26.2 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 12+ |
| Developer | [Florian Kaiser](https://appshunter.io/developer/1888709041) | [Software Tailor (HK) Limited](https://appshunter.io/developer/6776648111) |

## What reviewers say

### gtsync

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

**Currently charting:** #112 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


### AI PDF Reader

[App page](https://appshunter.io/ios/app/ai-pdf-reader-on-device/id6779994987)

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Personal - Monthly | $0.99 | per month |
| Pro Business - Monthly | $4.99 | per month |
| Pro Personal - Yearly | $9.99 | per year |
| Pro Business - Yearly | $49.99 | per year |


## Frequently asked questions

### Is gtsync free?

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

### Is AI PDF Reader free?

AI PDF Reader is free to download, with in-app purchases available.

### Do gtsync or AI PDF Reader have ads?

Neither gtsync nor AI PDF Reader shows ads.

### Which is updated more often, gtsync or AI PDF Reader?

gtsync ships an update every 2 weeks, and AI PDF Reader every 2 weeks. Most recently, gtsync was updated on October 8, 2026 and AI PDF Reader 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.*