# Dattii vs Axis轴线

The clearest difference is update cadence: Dattii at every 4 days against Axis轴线's every 5 months. Dattii also leads on iOS requirement (15.6 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Dattii sells 2 one-off in-app purchases and Axis轴线 sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Dattii ships an update every 4 days, Axis轴线 every 5 months. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Dattii | Axis轴线 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/axis/id6767885284/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 5 months |
| Monetization | — | Freemium |
| Size | 73 MB | 4 MB |
| Requires iOS | **15.6** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SZU-YUAN CHI](https://appshunter.io/developer/1829424256) | [德鑫 徐](https://appshunter.io/developer/1801107545) |

## What reviewers say

### Dattii

[App page](https://appshunter.io/ios/app/dattii/id6749231487)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kindly a cup of coffee | $0.99 | one-time |
| A cup of coffee | $1.99 | one-time |


### Axis轴线

[App page](https://appshunter.io/ios/app/axis/id6767885284)

This system helps you align your personal strategy with your execution by visualizing the gap between your plans and actual progress. It offers layered views from simple timelines to strategic Gantt charts, with automated analysis of your deviation patterns. Features include a focus mode and cross-device synchronization.

**Highlights:** Mirror Timeline for plan vs. actual comparison, KPI Waterfall for target achievement visualization, Strategy Gantt charts for long-term trends, Automated deviation pattern analysis, Zen Mode for focused work sessions, Widgets and Dynamic Island integration, iCloud cross-device sync

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Axis Pro Monthly | $2.99 | per month |
| Axis Pro Yearly | $9.99 | per year |
| Axis Pro Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is Dattii free?

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

### Is Axis轴线 free?

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

### Do Dattii or Axis轴线 have ads?

Neither Dattii nor Axis轴线 shows ads.

### Which is updated more often, Dattii or Axis轴线?

Dattii ships an update every 4 days, and Axis轴线 every 5 months. Most recently, Dattii was updated on November 5, 2026 and Axis轴线 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.*