# Tasks+Cal+Sync 4 vs Petey

The clearest difference is price: Petey at Free against Tasks+Cal+Sync 4's $14.99. Petey also leads on rating (3.8 vs 1.0) and update cadence (every 3 weeks vs every 20 months). Tasks+Cal+Sync 4's advantage is in-app purchases (none vs 10) and iOS requirement (10.0 vs 16.5). On ads and device support there is nothing between them.

Petey is free to download; Tasks+Cal+Sync 4 costs $14.99 up front. Petey sells 8 in-app purchases, starting at $6.99 per month. Tasks+Cal+Sync 4 asks for nothing beyond the download.

Petey holds the better App Store score, 3.8 against 1.0. That said, the two scores are not equally well evidenced: Petey has 351 ratings behind it against 2, so its average is the more settled of the two.

Tasks+Cal+Sync 4 ships an update every 20 months, Petey every 3 weeks. The most recent releases landed on October 16, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Tasks+Cal+Sync 4 | Petey |
| --- | --- | --- |
| Price | $14.99 | **Free** |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/tasks-plus-cal-plus-sync-4/id1166018485/reviews) | **[3.8 (351 ratings)](https://appshunter.io/ios/app/petey-ai-chat-for-watch/id6446047813/reviews)** |
| Number of ratings | 2 | **351** |
| Positive reviews | — | 51.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 3 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 8 MB | 70 MB |
| Requires iOS | **10.0** | 16.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 9+ |
| Developer | [Lukas Zeller](https://appshunter.io/developer/299521020) | [Pencil Research](https://appshunter.io/developer/1473063859) |

## What reviewers say

### Tasks+Cal+Sync 4

[App page](https://appshunter.io/ios/app/tasks-plus-cal-plus-sync-4/id1166018485)

This app synchronizes contacts, tasks, and calendars using the SyncML standard. It's designed for users who need to connect with older systems or specific organizational requirements that rely on this legacy synchronization technology.

**Highlights:** SyncML synchronization for contacts, tasks, and calendars, App-internal calendar and task management, iOS contact group assignment, Acts as a local SyncML server, Month, day, week, and list calendar views

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

**In-app purchases:** none


### Petey

[App page](https://appshunter.io/ios/app/petey-ai-chat-for-watch/id6446047813)

Interact with a powerful AI model directly from your Apple Watch or iPhone. Get quick answers, generate messages, create music playlists, and more. Access knowledge and communicate with an intelligent computer in real-time.

**Highlights:** Interact with GPT model on Apple Watch/iPhone, Create Apple Music playlists, View locations on Apple Maps, Get URL previews, Continue conversations with history, Generate messages without typing, Text to Speech for answers

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Petey Premium | $6.99 | per month |
| Petey Legacy | $6.99 | per month |
| Petey Premium Year | $59.99 | per year |
| Petey Legacy | $59.99 | per year |
| GPT-4 Upgrade | $3.99 | one-time |
| Petey Basic for watchOS | $4.99 | one-time |
| Petey Premium for watchOS | $12.99 | one-time |
| Petey Basic Lifetime | $129.99 | one-time |

**What reviewers like**

- 🚀 Powerful AI assistant on your wrist
- 👍 Convenient and easy to use
- 🔒 Ability to use own API key
- 💡 Great implementation of ChatGPT on Apple Watch

**What reviewers complain about**

- 🐛 Buggy or inconsistent performance
- 💰 Paid app with additional subscription
- 🔇 Text-to-speech issues or low volume
- 🤖 Robotic or unnatural voice output

**Reported bugs**

- App not installing or disappearing from Apple Watch
- Inability to upgrade to GPT-4 or API key not working
- Slow or no responses from the AI assistant

**Requested features**

- Default to voice input instead of keyboard
- Ability to continue conversations and ask follow-up questions
- Option to change speech voice
- Integration with Notes or other apps for saving responses
- Support for Apple Watch Action button


## Frequently asked questions

### Is Tasks+Cal+Sync 4 free?

Tasks+Cal+Sync 4 costs $14.99, with no in-app purchases.

### Is Petey free?

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

### Which has better reviews, Tasks+Cal+Sync 4 or Petey?

Petey is rated higher. Tasks+Cal+Sync 4 averages 1.0 out of 5 from 2 ratings, while Petey averages 3.8 from 351 ratings.

### Do Tasks+Cal+Sync 4 or Petey have ads?

Neither Tasks+Cal+Sync 4 nor Petey shows ads.

### Which is updated more often, Tasks+Cal+Sync 4 or Petey?

Tasks+Cal+Sync 4 ships an update every 20 months, and Petey every 3 weeks. Most recently, Tasks+Cal+Sync 4 was updated on October 16, 2026 and Petey on October 30, 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.*