Tasks+Cal+Sync 4 vs Petey
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tasks+Cal+Sync 4
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.
- 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
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Please read the following desciption before buying this app! Tasks+Cal+Sync 4 is a niche app, suitable only when you need synchronizing contacts, tasks and calendar with a server or service which uses a standard called SyncML. The app does not support any other synchronisation technology! So please buy this app only if you know for sure that SyncML-based synchronisation is really what you need! This may be the case when the IT people of your organisation say so, and maybe even explicitly recommend using Tasks+Cal+Sync to synchronize calendars, tasks and contacts. In any case, please realize that for using this app, you need to know the URL of your syncml server, the login user to use, and the so called server paths for contacts/tasks/calendar. Only the provider of the SyncML service knows these details and can support you in establishing sync with his SyncML server. We as makers of the SyncML client app cannot! By now, SyncML is a legacy standard. It was invented in 2000, and many of that time's feature phones did support it. Since then, it has been largely superseded by other technologies, most notably CalDAV and CardDAV, which iOS supports out of the box without any extra app. But SyncML still exists, and for some older calendaring systems, it may be the only way to synchronize. For those cases, Tasks+Cal+Sync 4 exists. Tasks+Cal+Sync 4 is a rework of the former Tasks+Cal+Sync app, to allow using SyncML on iOS 10 and later (the original Tasks+Cal+Sync app only works up to iOS 9). But please note that Tasks+Cal+Sync 4 does not provide new features over the original Tasks+Cal+Sync - except for a contact list view with a way to easily assign contacts to groups. Otherwise Tasks+Cal+Sync 4 just carries the original Tasks+Cal+Sync functionality forward to make it usable with iOS10 and later. So now that you are certain SyncML based synchronisation is what you need - here's the summary for Tasks+Cal+Sync 4: • based on a mature and extensively interoperability tested SyncML engine, which powers many SyncML client and server products for different platforms (libsynthesis). • synchronizes app-internal calendar (not the iOS calendar! If you want that, have a look at "SyncML PRO 4"), app-internal tasks (not iOS reminders!) and iOS contacts to a SyncML compliant server or service in the internet or in the local network. • can act as SyncML server in the local WiFi network (e.g. to keep really old mobiles in sync with an iOS device) • has built-in tasks, month, day, week and list views for the iOS calendar (same as in original Tasks+Cal+Sync) • has a contacts list for the iOS contacts, and allows quickly assigning/removing contact group membership (that's a new feature in Tasks+Cal+Sync 4) Please visit the plan44.ch web page (see support link below) for support and FAQ, as well as documentation for download.
Petey
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.
- 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
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** Featured on TechCrunch, Daring Fireball, iMore, 9to5Mac, BGR, MacRumors & more! ** Ask Petey a question from your Apple Watch and read the answer on your wrist. No phone needed, no waiting for a screen to light up. Petey runs as its own Watch app, with a complication for your watch face so an answer is one tap away. Petey is also on iPhone and iPad, and your conversations stay in sync across all three. ON YOUR WATCH • Ask by voice or scribble, read the answer right there • Scroll long answers with the Digital Crown • Have the answer read out loud • Send an answer to your phone to use it in another app • Add Petey as a complication for one-tap access ON IPHONE AND IPAD • Full conversation history, synced with your Watch • Live Activity while Petey is thinking, so you can keep doing other things • Share a single answer or a whole conversation • Open any link Petey mentions with one tap • Create Apple Music playlists and view places in Apple Maps from a conversation • Shortcuts: open Petey or ask it a question from a shortcut, or from Siri USE YOUR OWN API KEY If you have an OpenAI API key, add it in settings and Petey uses it directly. You pay OpenAI, not us, and you can pick from the models your key allows. A ChatGPT Plus subscription is not an API key; keys come from platform.openai.com. FREE AND PREMIUM Petey is free to use with a monthly limit of messages. Petey Premium removes the limit and unlocks the more capable models. Bought Petey before it went free? Tap Restore Purchases and your original purchase carries over. PRIVACY Conversations are stored on your device and in your iCloud. Petey does not sell or share your data. Questions or feedback: support@petey.app FAQ: https://petey-assistant.com/faq.html Terms: https://petey-assistant.com/terms.html Privacy: https://petey-assistant.com/privacy.html
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Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Tasks+Cal+Sync 4 | Petey |
|---|---|---|
| Price | $14.99 | Free — better |
| Rating | 1.0 (2 ratings) | 3.8 (351 ratings) — better |
| Positive reviews | — | 51.3% of reviews |
| Number of ratings | 2 | 351 — better |
| Update frequency | Every 20 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 10.0 — better | 16.5 |
| Further details — not scored | ||
| Size | 8 MB | 70 MB |
| Age rating | 4+ | 9+ |
| Developer | Lukas Zeller | Pencil Research |
Customer experience
Tasks+Cal+Sync 4
Petey
Bugs and requests
Tasks+Cal+Sync 4
Not enough reviews yet to summarise bugs or requests.
Petey
Reported bugs
3 issues- 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
6 requests- 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
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- Complication that displays last response
In-app purchases
Tasks+Cal+Sync 4
No in-app purchases
Petey
- Petey Premium7 Days trial$6.991 Month
- Petey Legacy3 variants$6.991 Month
- Petey Premium Year7 Days trial$59.991 Year
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- Petey Legacy$59.991 Year
- GPT-4 Upgrade$3.99
- Petey Basic for watchOS$4.99
- Petey Premium for watchOS$12.99
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- Petey Basic Lifetime$129.99









