# Arc Timeline 4 — Automatic Location History

> Automatic background location history tracker with activity and health insights. (iPhone/iPad app by Matthew Bruce Greenfield.)

- Source: https://appshunter.io/ios/app/arc-timeline-4/id6740688708 (this page in markdown: same URL + `.md`)
- Developer: [Matthew Bruce Greenfield](https://appshunter.io/developer/444610547)
- Category: Health & Fitness, Lifestyle
- Price: Free with in-app purchases
- Rating: 3.80/5 from 22 App Store ratings · 31 written reviews indexed
- Age rating: 4+
- Requires: iOS 26.0 · 59 MB
- Languages: American English, European Spanish, German (Germany), Thai, Chinese (Traditional, Taiwan), Chinese (Simplified, China), French (France), Japanese
- Released: 2026-04-16
- Data updated: 2026-08-31
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/arc-timeline-4/id6740688708/reviews.md

## What is Arc Timeline 4?

Arc Timeline automatically records where you go, how you get there, and how long you stay - all in the background, with no buttons to press.

A smart learning engine gets more accurate the more you use it, building a detailed, searchable timeline of your daily life. Your trips, your places, your history - recorded effortlessly.

WHAT ARC TIMELINE DOES

▸ Automatically detects and records your visits and trips
▸ Learns your places and recognises them by name
▸ Detects walking, running, cycling, driving, train, bus, airplane, and 20+ more activity types
▸ A learning engine that improves over time, personalised to you
▸ Search your entire history - find any place, any trip, any day

BUILT FOR QUALITY

▸ High quality GPS data with advanced Kalman filtering
▸ Reliable background recording with intelligent sleep mode
▸ Built for iOS 26 with Liquid Glass design
▸ Full dark mode support

YOUR DATA, YOUR DEVICE

▸ All data stored on your device
▸ Optional iCloud backup to your private iCloud account
▸ No accounts, no sign-ups, no data shared with third parties
▸ Export your data anytime in standard JSON format

HEALTH & ACTIVITY INSIGHTS

▸ Heart rate, calories burned, steps, and altitude for every trip and visit
▸ Import workouts from Apple Health
▸ Sync visits to your calendar
▸ Places tab with visit history, occupancy charts, and geographic reports

A free trial is included. An active subscription or lifetime purchase is required after the trial period.

Terms of Use (EULA): https://www.bigpaua.com/arcapp/terms

## Key features

- 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

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Monthly Subscription | $4.99 | per month |
| Yearly Subscription | $44.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Purchase | $179.99 | one-time |


## Recent user reviews (10 of 31)

All indexed reviews: https://appshunter.io/ios/app/arc-timeline-4/id6740688708/reviews.md

### 5/5 — 日付が見えない

*2026-07-31*

たぶん10年くらい使っています。永久ライセンスを購入して非常に気に入っていました。しかし、

iPhone12で使用していますが、タイムラインで肝心な日付が「2026年7月2…」と表示されてしまい、いつの記録か分からなくなりました。このままでは使えません。何とかしていただけると助かります。
よろしくお願いします。

追記
2日後に回答があり、修正して頂けるとのことでした。
素早い対応に感謝します。星の数を2から5に変更しました。

**Developer response:** レビューをありがとうございます。10年近くもArcをご利用いただいていること、心から感謝いたします。

日付が「2026年7月2…」と省略されてしまう問題、ご報告の通り再現・確認できました。原因も特定済みで、バグとして登録しています(整理番号 BIG-673)。近いうちのアップデートで修正できる見込みです。

ご不便をおかけして申し訳ありません。報告していただいたおかげで、日本語表示を使う全ユーザーのための改善につながります。

### 5/5 — 旧アプリより安定&日本語対応

*2026-07-16*

旧アプリでは、処理中にページ切り替えなどの操作をすると、たまにクラッシュしてしまう事があったのですが、今のところそのような兆候は無く安定しています。

現状の不満点としては、以前は出来ていたライトモード/ダークモードのアプリ内での任意切り替えが出来ない事

### 2/5 — Great idea executed awkwardly

*2026-07-10*

Sometimes thinks I walk at 400mph or sleep in a parking lot or am stationary while boating on water. Place search is flaky. Great concept though. Hasn’t changed substancially in years.

**Developer response:** Ah the old hater is back. You've been at this 8 years! Never a good thing to say, but still paying for the app year after year.

To others reading, I recommend checking the support forum, where we have a vibrant, active, and happy community of users and builders, focused on using and improving the app, taking it to new heights. It's at https://support.bigpaua.com/

This hater is not representative (nor do they ever highlight any genuine problems).

### 3/5 — 無視されちゃう

*2026-07-08*

前のアプリでは、移動してると記録されてるのに、かすりもしない時がある。なんで？

**Developer response:** レビューありがとうございます。移動が記録されないことがあるとのこと、ご不便をおかけしています。レビュー欄では詳しいやり取りができないため、サポートフォーラム(https://support.bigpaua.com)に投稿していただけると、状況を確認しながらきちんと対応できます。日本語での投稿でも大丈夫です。また、最新バージョン(1.5.0)には調査に役立つ診断機能が追加されていますので、まずアップデートをお試しください。

### 4/5 — Top aber plötzlich sehr hoher Akkuverbrauch

*2026-07-07*

Top aber plötzlich sehr hoher Akkuverbrauch seit ich das iPhone vor ca 4 Wochen neu gestartet habe. Ein Modus mit geringerer Genaugkeit zu Gunsten des Akkus wäre wichtig.

**Developer response:** Danke für die Rückmeldung! Ein plötzlich hoher Akkuverbrauch ist nicht normal — Arc ist darauf ausgelegt, sehr sparsam zu laufen, und sollte im Alltag kaum spürbar sein. Statt die Genauigkeit zu reduzieren (was die Qualität der Timeline deutlich verschlechtern würde), finden wir lieber die Ursache. Solche Phasen erhöhten Verbrauchs entstehen oft durch iOS selbst und normalisieren sich meist von allein. Falls nicht: Im Support-Forum (support.bigpaua.com) können wir uns das mit einem Log genauer ansehen.

### 5/5 — Long time user, great app, great support

*2026-06-21, version 1.3.3*

I have used this since its release. The arc timeline 4 release has been great. Any issues have been take up by the developer in the forums. 

I feel the improvements have been great and the support ongoing.

### 5/5 — Impressive App, incredible update

*2026-06-17*

Timeline 4 is a massive update and huge change for the better! The UI *flies* now, days and weeks and months load instantly. And finally dark mode! Congrats and thank you to Matt for the job well done, glad for all the work you do.

### 3/5 — Still thinks 40 mph is an appropriate walking speed

*2026-06-05*

But it’s a great app overall.

**Developer response:** Ah the old hater is back. You've been at this 8 years! Never a good thing to say, but still paying for the app year after year.

To others reading, I recommend checking the support forum, where we have a vibrant, active, and happy community of users and builders, focused on using and improving the app, taking it to new heights. It's at https://support.bigpaua.com/

This hater is not representative (nor do they ever highlight any genuine problems).

### 1/5 — Unstable and crashes

*2026-05-22*

Feels very vibe coded. Lots of crashes in the app and no developer support.

**Developer response:** Is this trolling?

The app has no crashes (it’s all monitored), there’s an incredibly active customer support forum that I’m replying on all day, and the app has been in development for two years with an entire year of successful public beta prior to going live on the App Store.

If you are a genuine user, please come to the support forum (https://support.bigpaua.com), which is clearly linked from within the app.

### 5/5 — Solides Location Tracking mit exportierbaren Daten

*2026-05-20*

Läuft seit langem durchgängig, und die Version 4 hebt das ganze auf ein neues Level.

## Frequently asked questions about Arc Timeline 4

### What is Arc Timeline?

Arc Timeline is an iOS app that automatically records your location history, including visits, trips, and activity types like walking or driving. It uses a smart learning engine to recognize places and improve accuracy over time.

### How does Arc Timeline track my activity?

Arc Timeline automatically detects and records your visits and trips in the background using high-quality GPS data. It can identify over 20 different activity types and provides health insights such as heart rate, calories burned, and steps for each recorded event.

### Is my data private with Arc Timeline?

Yes, all your data is stored directly on your device. You have the option for an iCloud backup to your private account, but no accounts or sign-ups are required, and your data is not shared with third parties.

### What are the subscription options for Arc Timeline?

Arc Timeline offers a free trial, after which an active subscription or lifetime purchase is required. Subscription plans include a monthly option for $4.99 with a 7-day free trial, and a yearly option for $44.99 with a 7-day free trial.

### Does Arc Timeline have ads?

No, Arc Timeline does not contain advertisements. The app operates on a subscription or lifetime purchase model after an initial free trial period.

### What devices is Arc Timeline compatible with?

Arc Timeline is built for iOS and is compatible with iPhones. It supports iOS 26 and offers full dark mode support.

### How often is Arc Timeline updated?

The latest version of Arc Timeline is 1.4.0, and it was last updated on June 25, 2026. This indicates a relatively recent update cycle for the application.

### Can I export my data from Arc Timeline?

Yes, you can export your data from Arc Timeline anytime in a standard JSON format. This allows you to keep a personal copy of your location history and activity logs.

## Version history (last 5 releases)

### 1.6.1 — 2026-08-18

• Old app cleanup: Settings > Storage now shows how much space Arc Timeline 3's old data is using on your iPhone, with a safe way to delete it when you no longer need it. Safeguards make sure everything worth keeping has been copied across first. (BIG-321, BIG-693)
• Improved recording accuracy on underground metro and train lines. (BIG-607)
• Improved timeline item handling around recording gaps, plus other timeline processing refinements. (BIG-444, BIG-585)
• The place merge confirmation now shows each place's visit count, to help you pick the keeper. (BIG-676)
• Responses in Search can now be copied with a long press. (BIG-561)
• Fixed a date display issue for Japanese and Chinese at larger text sizes. (BIG-673)
• Plus foundations for place categories, coming in a future update. (BIG-513)

### 1.6.0 — 2026-07-30

• Merge duplicate places. If the same place has ended up recorded twice, open either one and choose Merge Places from the menu. (BIG-153)
• Reduced unnecessary overnight location activity. (BIG-624)
• Improved GPX import removal. (BIG-645)
• The map scale bar in the Places tab now follows the card, matching the Timeline tab. (BIG-113)

### 1.5.1 — 2026-07-16

• Visits without an assigned place now get their street address filled in automatically as you browse, including city and country, and become findable by city and country in search. (BIG-455)
• Set a visit's one-time title to its street address with a single tap. (BIG-227)
• Street-address titles display in a lighter style, so they read apart from places you've named yourself. (BIG-634)
• Run automatic exports on demand with new Run Now buttons in Settings, and the last-export times shown there are now accurate. (BIG-568)
• The AI assistant now handles date ranges like "last 30 days" and "since 2020" correctly, and answers questions spanning long histories more reliably. (BIG-582, BIG-564, BIG-548)
• Fixed layout and translation issues in GPX import. (BIG-630, BIG-637)

### 1.5.0 — 2026-07-09

• Import GPX files. Bring routes, workouts, and old exports into your timeline: open a GPX file from the Files app or a share sheet, or use the new Import GPX File option on the timeline view. You can adjust dates and timezones before importing, existing timeline data is safely set aside when an import overlaps it, and any import can be removed again later with everything restored exactly as it was. (BIG-204)
• Background recording without the persistent location indicator. Arc no longer keeps the location indicator lit while recording in the background. (BIG-617)
• Further improvements to recording on underground trains and metros, plus a fix for out-of-order location data that could distort recorded paths. (BIG-607)
• New Export Diagnostics option on the timeline view. If a day ever looks wrong, it packages everything we need to investigate into a single file you can send us. (BIG-626)
• Arc's documents folder is now visible in the Files app (On My iPhone, Arc Timeline 4).

### 1.4.0 — 2026-06-25

• See what you're up to at a glance with a new widget for your home screen and lock screen, showing your current activity and when it started. (BIG-140)
• Choose your map style in Settings, with separate styles for light and dark mode. (BIG-146)
• Add notes to timeline items more easily, and notes now save automatically when you leave the editor. (BIG-445, BIG-473)
• Fixed a crash that could occur when exporting your data.

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## More apps by Matthew Bruce Greenfield

- [Arc Timeline - Trips & Places](https://appshunter.io/ios/app/arc-timeline-trips-and-places/id1063151918)
- [Arc Mini](https://appshunter.io/ios/app/arc-mini/id1510217238)
- [Life Balance](https://appshunter.io/ios/app/life-balance/id1607824907)
- [This & That](https://appshunter.io/ios/app/this-and-that/id1660363624)
- [Arc Timeline Recorder](https://appshunter.io/ios/app/arc-timeline-recorder/id6499296846)

All apps by Matthew Bruce Greenfield: https://appshunter.io/developer/444610547

## Related topics

[arc timeline 4](https://appshunter.io/ios/topics/arc-timeline-4) · [arc timeline](https://appshunter.io/ios/topics/arc-timeline)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-31.*