# Important First vs Calindex

The clearest difference is update cadence: Calindex at every 3 days against Important First's every 6 weeks. Important First's advantage is iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Important First ships an update every 6 weeks, Calindex every 3 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Important First | Calindex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/calindex/id6789342118/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 days** |
| Monetization | — | Free |
| Size | 30 MB | 9 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Georgi Georgiev](https://appshunter.io/developer/1435876648) | [Manafold LLC](https://appshunter.io/developer/6775217982) |

## What reviewers say

### Important First

[App page](https://appshunter.io/ios/app/important-first/id6757949779)

**Features:** macOS Compatibility

**In-app purchases:** none


### Calindex

[App page](https://appshunter.io/ios/app/calindex/id6789342118)

Combines Apple Calendar and Reminders into a single, chronological timeline. Add events and reminders using natural language, and convert notes into actionable plans. Offers widgets and on-device insights for a private, streamlined schedule.

**Highlights:** Chronological timeline view, Natural language event/reminder creation, Integrated Apple Calendar & Reminders, Note to event conversion, Home/Lock Screen widgets, On-device insights, Private by design

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

**In-app purchases:** none


## Frequently asked questions

### Is Important First free?

Important First is free to download, with no in-app purchases.

### Is Calindex free?

Calindex is free to download, with no in-app purchases.

### Do Important First or Calindex have ads?

Neither Important First nor Calindex shows ads.

### Which is updated more often, Important First or Calindex?

Important First ships an update every 6 weeks, and Calindex every 3 days. Most recently, Important First was updated on October 28, 2026 and Calindex 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.*