# Tida Tasks vs CalStack

The clearest difference is price: Tida Tasks at Free against CalStack's $9.99. CalStack's advantage is in-app purchases (none vs 1). On update cadence, ads, device support and iOS requirement there is nothing between them.

Tida Tasks is free to download; CalStack costs $9.99 up front. Tida Tasks sells 1 in-app purchase, starting at $2.99 per month. CalStack asks for nothing beyond the download.

Tida Tasks ships an update every 6 days, CalStack every 5 days. The most recent releases landed on October 11, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Tida Tasks | CalStack |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/tida-tasks/id6787073654/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 days | **Every 5 days** |
| Monetization | Freemium | — |
| Size | 10 MB | 20 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad, Mac | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Daoud Mansour](https://appshunter.io/developer/6787073656) | [Pick Two Productions Inc](https://appshunter.io/developer/1860419697) |

## What reviewers say

### Tida Tasks

[App page](https://appshunter.io/ios/app/tida-tasks/id6787073654)

Organize your life with simple, intuitive buckets for tasks. Capture ideas instantly, set reminders with natural language, and manage your day without clutter. Enjoy a calm, private, and customizable experience.

**Highlights:** Task buckets for organization, Instant task capture, Natural language date/time input, Intuitive gesture controls, Private, on-device data storage, Customizable color themes

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tend Premium | $2.99 | per month |


### CalStack

[App page](https://appshunter.io/ios/app/calstack/id6789672345)

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

**In-app purchases:** none


## Frequently asked questions

### Is Tida Tasks free?

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

### Is CalStack free?

CalStack costs $9.99, with no in-app purchases.

### Do Tida Tasks or CalStack have ads?

Neither Tida Tasks nor CalStack shows ads.

### Which is updated more often, Tida Tasks or CalStack?

Tida Tasks ships an update every 6 days, and CalStack every 5 days. Most recently, Tida Tasks was updated on October 11, 2026 and CalStack on October 9, 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.*