# CalendarTask vs Tendback

The clearest difference is update cadence: CalendarTask at fortnightly against Tendback's every 5 weeks. CalendarTask also leads on device support (4 vs 1) and iOS requirement (15.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. CalendarTask sells 7 in-app purchases, starting at $9.99 per year and Tendback sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

CalendarTask ships an update fortnightly, Tendback every 5 weeks. The most recent releases landed on November 7, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | CalendarTask | Tendback |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (280 ratings)](https://appshunter.io/ios/app/calendartask-efficient-life/id1570563588/reviews)** | — |
| Number of ratings | **280** | — |
| Positive reviews | 76.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Monetization | Freemium | — |
| Size | 77 MB | 5 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Beijing Xiaowei Cloud Service Technology Co., Ltd.](https://appshunter.io/developer/1473104264) | [孟奇 李](https://appshunter.io/developer/1895201807) |

## What reviewers say

### CalendarTask

[App page](https://appshunter.io/ios/app/calendartask-efficient-life/id1570563588)

Organize your life with a powerful task management and calendar application. Synchronize across devices, set reminders, and view important dates. Customize your calendar and utilize widgets for quick access to your schedule and upcoming events.

**Highlights:** Cross-platform synchronization, Lunar and solar calendar view, Customizable calendar appearance, Repeat tasks and reminders, Countdown widgets, List mode for tasks, Free widgets

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 year VIP (7-day free trial) | $9.99 | per year |
| 3 months | $3.99 | one-time |
| 10% off for 3-month | $3.99 | one-time |
| 10% off for 1-year | $8.99 | one-time |
| 1 year | $9.99 | one-time |
| 3 years | $19.99 | one-time |
| 10% off for 3-year | $19.99 | one-time |


### Tendback

[App page](https://appshunter.io/ios/app/tendback/id6782829023)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tendback Pro Monthly | $0.99 | per month |
| Tendback Pro Yearly | $4.99 | per year |
| Tendback Pro Lifetime | $12.99 | one-time |


## Frequently asked questions

### Is CalendarTask free?

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

### Is Tendback free?

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

### Do CalendarTask or Tendback have ads?

Neither CalendarTask nor Tendback shows ads.

### Which is updated more often, CalendarTask or Tendback?

CalendarTask ships an update fortnightly, and Tendback every 5 weeks. Most recently, CalendarTask was updated on November 7, 2026 and Tendback on November 10, 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.*