How to Record LINE Calls in 2026: iPhone Built-in Without Notification + Android Recording App Tested

Meetings, interviews, client calls: LINE conversations always slip away

Many important work conversations happen over LINE calls: a supervisor assigning tasks on the fly, a client verbally agreeing to a quote, or key points from a remote interview. But LINE itself has never had a built-in recording feature, so most people have had to rely on a second phone, a voice recorder, or risky third-party apps that notify the other party.

Until 2026, when iPhone's iOS 26 update introduced the 'Local Capture' feature, finally allowing you to record LINE calls directly, with no notification to the other party. Android users can achieve the same goal with apps like Cube ACR. This article breaks down both mainstream methods and tells you how to download, save, and avoid common pitfalls.

Before choosing a LINE call recording solution, understand these 4 key points

1. Will the other party be notified?

Privacy is the biggest concern. iPhone's 'Local Capture' is a system-level feature that doesn't emit a tone or notification during recording; Android's Cube ACR also doesn't notify the other party, but some phone brands may require extra settings due to system restrictions.

2. Is the recording quality clear?

Regardless of the method, it's recommended to enable speakerphone during calls. Tests show that without speakerphone, both voices can sound muffled, especially since iPhone's 'Local Capture' currently requires speakerphone to accurately capture both audio tracks.

3. Where are recordings stored? Can they be downloaded?

On iPhone, 'Local Capture' recordings are saved directly to the Voice Memos app, which can be exported via AirDrop, cloud services, or by connecting to a computer. On Android, Cube ACR lets you set a storage path and share or upload recordings directly to the cloud.

4. Do you need cross-platform use?

If you have both iPhone and Android devices, consider the compatibility of recordings. iPhone recordings are in m4a format, while Android recordings are often mp3 or m4a; both can be played on computers, but management differs.

iPhone solution: iOS 26 'Local Capture' tested—no notification, no installation

If your iPhone is updated to iOS 26 or later, this is the simplest and most recommended method. It requires no app installation and can be started directly from the Control Center.

Setup steps (set once, use forever)

1. Go to LINE → Home → Settings → Calls, and enable 'Voice Call Feature' and 'Integrate with iPhone Calls'.
2. Then go to iPhone Settings → Phone → Incoming Calls, and change to 'Full Screen'.
3. Swipe down from the top-right corner to open Control Center, find the 'Local Capture' icon (if not visible, add it in Settings > Control Center).

Recording steps

1. Make or answer a LINE call.
2. During the call, pull down Control Center and tap 'Local Capture'.
3. If you only want to record audio (not screen), long-press the 'Local Capture' icon and check 'Audio Only'.
4. After the call ends, the recording is automatically saved to Voice Memos.

Test results and limitations

• Pros: Completely free, no installation, invisible to the other party, stable recording quality.
• Limitations: Currently requires speakerphone to clearly capture both voices; avoid letting the screen go to sleep during recording, as the system may interrupt recording to save power.
• Best for: All iPhone users, especially those who value privacy and don't want to install extra apps.

How to download recordings

After recording, open Voice Memos → find the recording → tap the share button at the bottom left → you can 'Save to Files' or AirDrop to a computer, or upload directly to iCloud, Google Drive, etc.

Android solution: Cube ACR tested—supports multiple messaging apps

Android users, due to different system openness, need third-party apps for LINE call recording. Currently, the most stable, free, and root-free option is Cube ACR.

Installation and setup

1. Download 'Cube ACR' from Google Play Store.
2. Open the app and grant microphone, storage, and other permissions.
3. Follow the prompts to enable 'Accessibility Service' or 'Notification Access' so the app can detect LINE calls.

Recording steps

1. Make a LINE call.
2. Cube ACR will automatically detect and start recording (or you can start manually).
3. After the call ends, the recording is saved in the app, where you can play, rename, or share it.

How to download recordings

In Cube ACR's recording list, find the file, tap 'Share' → choose 'Save to Files' or upload directly to Google Drive, Dropbox, etc.

Test results and limitations

• Pros: Free, automatic detection, supports LINE, WhatsApp, Messenger, and other messaging apps.
• Limitations: Some Chinese phone brands (like Xiaomi, OPPO) may require manually adding Cube ACR to the whitelist due to battery-saving mechanisms; speakerphone is also recommended during recording.
• Best for: Android users, especially those who need to record multiple messaging apps simultaneously.

Other options: Screen recording and external recording devices

Screen recording (works on both iPhone and Android)

If you don't want to use the above methods, you can also use built-in screen recording. But note: iPhone's screen recording does not capture external audio by default; you must long-press the record button and enable the 'Microphone'. On Android, you need to select 'Microphone sound' in the recording settings. The downside is larger files and the need for additional conversion or editing after recording.

External voice recorder or second phone

This is the most traditional method: put the call on speaker and use a voice recorder or another phone placed nearby. Pros: simple, no installation needed. Cons: poorer audio quality, more background noise, and manual file management.

Pitfall guide: 4 common mistakes in LINE call recording

Pitfall 1: Not using speakerphone, resulting in only your voice being recorded Both iPhone's 'Local Capture' and Cube ACR need speakerphone to capture the other party's voice. If you're using earphones or not on speaker, the other party's voice will be very faint or absent.

Pitfall 2: Screen auto-lock interrupts recording Especially on iPhone, locking the screen may cause the system to pause background operations. It's recommended to set auto-lock to 'Never' or manually keep the screen on during recording.

Pitfall 3: Recordings stored in the app, then the app is deleted When using Cube ACR, be sure to regularly export recordings to the cloud or computer. Uninstalling the app or clearing data will result in loss of recordings.

Pitfall 4: Ignoring legal and privacy issues In Taiwan, the Communications Protection and Surveillance Act requires at least one party's consent for recording; but if it involves others' privacy or trade secrets, it's advisable to obtain consent first. Company use should also comply with labor and personal data protection laws.

Summary: Which solution should you choose?

Your needs	Recommended solution
iPhone user, don't want to install apps, invisible to the other party	iPhone 'Local Capture' (iOS 26+)
Android user, need free and automatic recording	Cube ACR
Occasional recording, don't want setup	Screen recording (remember to enable microphone)
Can't use phone software, or need highest audio quality	External voice recorder + speakerphone

If you're an iPhone user, after upgrading to iOS 26, try 'Local Capture' first—it's completely free, intuitive, and recordings go straight to Voice Memos, making sharing and downloading easy. Android users can rely on Cube ACR's stability.

Final reminder: Regardless of the method, make sure recording is allowed in your context before recording, and develop the habit of backing up immediately after recording, so important content doesn't disappear from your phone.

References

• LINE finally supports call recording! No external tools or devices needed, just use iPhone's built-in system feature
• [Phone Tips] LINE call recording is now possible! iPhone built-in call recording trick without notifying the other party! | Jyes Communication~Challenge the lowest price in the phone market
• LINE Call Recording Tutorial: 4 Methods to Record LINE Calls, Personally Tested! [2025]
• Achieving Cube ACR for LINE call recording
• How to record phone calls and LINE calls? Recommended call recording apps for iPhone and Samsung