# OneCal vs VOIDTASK

The clearest difference is update cadence: VOIDTASK at weekly against OneCal's monthly. VOIDTASK also leads on rating (5.0 vs 4.8). OneCal's advantage is ratings volume (19 vs 3) and iOS requirement (16.4 vs 18.5). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. OneCal sells 6 in-app purchases, starting at $5.99 per month and VOIDTASK sells 1 in-app purchase, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

VOIDTASK holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: OneCal has 19 ratings behind it against 3, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

OneCal ships an update monthly, VOIDTASK weekly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | OneCal | VOIDTASK |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (19 ratings)](https://appshunter.io/ios/app/onecal-unified-calendar/id6759604806/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/voidtask/id6769259016/reviews)** |
| Number of ratings | **19** | 3 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 70 MB | 5 MB |
| Requires iOS | **16.4** | 18.5 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [OneCal](https://appshunter.io/developer/1879760763) | [Praxticus Mobile Labs LLC](https://appshunter.io/developer/1155766939) |

## What reviewers say

### OneCal

[App page](https://appshunter.io/ios/app/onecal-unified-calendar/id6759604806)

Consolidate all your Google Calendar, Outlook, and iCloud events into a single, intuitive interface. Manage your schedule, create events, and share booking links effortlessly. Sync calendars in real-time for seamless team collaboration and to avoid double-bookings.

**Highlights:** Unified calendar view, Event creation and management, Scheduling and booking links, Real-time availability sync, Team calendar collaboration, Customizable reminders and attendees

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Monthly | $5.99 | per month |
| Essential Monthly | $12.99 | per month |
| Premium Monthly | $29.99 | per month |
| Basic Yearly | $59.99 | per year |
| Essential Yearly | $120.99 | per year |
| Premium Yearly | $300.00 | per year |


### VOIDTASK

[App page](https://appshunter.io/ios/app/voidtask/id6769259016)

This app offers a unique, dark-themed interface for managing tasks with advanced AI assistance. It visualizes task relationships, includes focus modes, OCR scanning, and voice input for efficient workflow. Designed for speed and privacy, it keeps all data on-device.

**Highlights:** AI-powered task creation and management, Dark terminal-grade interface, Visual knowledge graph of tasks, Distraction-free focus modes, OCR and voice task input, On-device AI assistant, Streak tracker for accountability

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Integrations | $2.99 | per month |


## Frequently asked questions

### Is OneCal free?

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

### Is VOIDTASK free?

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

### Which has better reviews, OneCal or VOIDTASK?

VOIDTASK is rated higher. OneCal averages 4.8 out of 5 from 19 ratings, while VOIDTASK averages 5.0 from 3 ratings.

### Do OneCal or VOIDTASK have ads?

Neither OneCal nor VOIDTASK shows ads.

### Which is updated more often, OneCal or VOIDTASK?

OneCal ships an update monthly, and VOIDTASK weekly. Most recently, OneCal was updated on November 5, 2026 and VOIDTASK on October 31, 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.*