# Halo vs Arc Timeline 4

The clearest difference is rating: Halo at 4.8 against Arc Timeline 4's 3.9. Halo also leads on ratings volume (112 vs 23) and iOS requirement (18.0 vs 26.0). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. Halo sells 8 in-app purchases, starting at $2.99 per 7 days and Arc Timeline 4 sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Halo holds the better App Store score, 4.8 against 3.9. Both are backed by a comparable volume of ratings — 112 and 23 respectively. Written reviews complicate that: 58% of Halo's written reviews are positive against 61% of Arc Timeline 4's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on September 9, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Halo | Arc Timeline 4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (112 ratings)](https://appshunter.io/ios/app/halo-habit-tracker/id6738296252/reviews)** | [3.9 (23 ratings)](https://appshunter.io/ios/app/arc-timeline-4/id6740688708/reviews) |
| Number of ratings | **112** | 23 |
| Positive reviews | 57.9% of reviews | **60.5% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 98 MB | 64 MB |
| Requires iOS | **18.0** | 26.0 |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Dig Wells, Inc.](https://appshunter.io/developer/1498971378) | [Matthew Bruce Greenfield](https://appshunter.io/developer/444610547) |

## What reviewers say

### Halo

[App page](https://appshunter.io/ios/app/halo-habit-tracker/id6738296252)

Build lasting habits with powerful tracking and AI-powered coaching. This app uses science-backed methods to help you create momentum and achieve your goals.

**Highlights:** Habit tracking, AI coaching, Science-backed protocols, Momentum building, Lasting change

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Halo Pro | $2.99 | per 7 days |
| Halo Pro | $12.99 | per month |
| Halo Pro | $19.99 | per month |
| Halo Pro | $59.99 | per year |
| Halo Pro | $59.99 | per year |
| Halo Pro | $59.99 | per year |
| Halo Pro | $69.99 | per year |
| Halo Pro | $69.99 | per year |


### Arc Timeline 4

[App page](https://appshunter.io/ios/app/arc-timeline-4/id6740688708)

This app automatically tracks your location history, including how you travel and how long you stay at places. It learns your habits to provide a detailed, searchable timeline of your daily life, offering insights into your activity and health metrics.

**Highlights:** Automatic background location recording, Smart learning engine for place recognition, Detects over 20 activity types, Searchable trip and place history, Health and activity insights (heart rate, calories), Data stored on device with optional iCloud backup

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $4.99 | per month |
| Yearly Subscription | $44.99 | per year |
| Lifetime Purchase | $179.99 | one-time |


## Frequently asked questions

### Is Halo free?

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

### Is Arc Timeline 4 free?

Arc Timeline 4 is free to download, with in-app purchases available.

### Which has better reviews, Halo or Arc Timeline 4?

Halo is rated higher. Halo averages 4.8 out of 5 from 112 ratings, while Arc Timeline 4 averages 3.9 from 23 ratings.

### Do Halo or Arc Timeline 4 have ads?

Neither Halo nor Arc Timeline 4 shows ads.

### Which is updated more often, Halo or Arc Timeline 4?

Halo ships an update weekly, and Arc Timeline 4 weekly. Most recently, Halo was updated on September 9, 2026 and Arc Timeline 4 on September 27, 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.*