# 小鹦轻轻 vs Arc

The clearest difference is in-app purchases: 小鹦轻轻 at none against Arc's 3. 小鹦轻轻 also leads on iOS requirement (15.6 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Arc sells 3 in-app purchases, starting at $2.99 per month. 小鹦轻轻 asks for nothing beyond the download.

小鹦轻轻 ships an update every 2 weeks, Arc every 9 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 小鹦轻轻 | Arc |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 9 days** |
| Monetization | — | Freemium |
| Size | 2 MB | 18 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [蓉 康](https://appshunter.io/developer/1810964174) | [岚烜 吴](https://appshunter.io/developer/6788589687) |

## What reviewers say

### 小鹦轻轻

[App page](https://appshunter.io/ios/app/1/id6746670996)

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

**In-app purchases:** none


### Arc

[App page](https://appshunter.io/ios/app/arc-75-day-challenge-tracker/id6796747380)

Track daily routines and build habits with customizable challenges. Integrates with Apple Health for automatic task completion. Offers a free starter challenge and optional Pro features for advanced tracking.

**Highlights:** Customizable challenge lengths (21-90 days), Apple Health auto-tracking integration, Strict mode for missed days, Finisher card with completion details, Home and lock screen widgets, No account required for privacy

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Arc Pro Monthly | $2.99 | per month |
| Arc Pro Yearly | $19.99 | per year |
| Arc Pro | $29.99 | one-time |


## Frequently asked questions

### Is 小鹦轻轻 free?

小鹦轻轻 is free to download, with no in-app purchases.

### Is Arc free?

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

### Do 小鹦轻轻 or Arc have ads?

Neither 小鹦轻轻 nor Arc shows ads.

### Which is updated more often, 小鹦轻轻 or Arc?

小鹦轻轻 ships an update every 2 weeks, and Arc every 9 days. Most recently, 小鹦轻轻 was updated on October 30, 2026 and Arc 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.*