Last Updated: 16 June, 2026

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Quick Answer

IMO is a free communication app from Pagebites, Inc. that offers HD video calls, voice calls, and instant messaging across 170+ countries. The latest IMO APK works on Android 5.0 and above, weighs around 96–142 MB depending on the variant, and runs smoothly even on slow 2G or 3G networks. Download it from the Google Play Store or a trusted APK source, enable installation from unknown sources, and you’re ready to call worldwide in under two minutes.

App Privacy

ALLWAPK.NET has explained below how the app uses your data. To learn more, please read the Privacy Policy.

IMO APK File Information

Detail	Value
App Name	IMO – International Calls & Chat
Developer	Pagebites, Inc. (imo.im)
Category	Communication
Latest Version	2026.05.10xx series
File Size	~96–142 MB
Android Required	5.0 (Lollipop) and above
Architecture	Universal
Price	Free (contains ads)
Downloads	1 Billion+
Rating	4.3 / 5 (Google Play)
Official Website	imo.im

What Is IMO APK?

IMO is a lightweight messaging and calling app built for one job: keeping you connected on any network, even when bandwidth is tight. It launched in 2007, found mass adoption across the Middle East, South Asia, and Africa, and now sits past one billion downloads on the Play Store.

The APK file is simply the Android installer package. You can grab it from Google Play in the usual way, or download the APK directly when you need an older build, a region-specific version, or the beta channel.

What sets IMO apart from heavyweights like WhatsApp is its focus on call quality over weak connections. Where most apps drop or freeze on a patchy 3G line, IMO keeps the audio intact and gracefully scales video down instead of disconnecting.

IMO vs IMO Beta vs IMO HD vs IMO Lite: Which Version Is Right for You?

Version	Best For	Size	Key Difference
IMO (main),	Every day, users who want stability	~142 MB	Official stable release with all core features
IMO Beta	Early adopters and testers	~85 MB	Pre-release builds with experimental features
IMO HD	High-end devices and large screens	~144 MB	Higher resolution video and richer UI
IMO Lite	Low-end phones, limited storage, weak data	~10–15 MB	Stripped-down build optimised for entry-level Android

Pick the main app if you want “just works.” Pick Lite if you’re on a budget phone or a slow connection. Pick Beta only if you’re comfortable with occasional bugs in exchange for early features.

Who Developed IMO?

IMO is built by Pagebites, Inc., a Palo Alto–based company founded by Ralph Harik and Georges Harik (an early Google employee). The team has stayed deliberately small and product-focused, which is part of why the app stayed lean while competitors ballooned.

Key Features of IMO APK

HD Video and Voice Calls

IMO supports up to 720p video on capable devices and adapts in real time as your bandwidth changes. Audio uses a custom codec tuned for spotty networks, which is the main reason calls hold together on 3G when WhatsApp would have cut out already.

Free International Calling

There is no per-minute charge for IMO-to-IMO calls anywhere in the world. Whether you’re calling someone in Lahore from Dubai or Manila from Toronto, you only pay for the data and the app is designed to use very little of it.

Instant Messaging with Media Sharing

Send text, photos, videos, voice notes, location, contacts, and files including PDF, DOC, and ZIP. There’s no aggressive compression like some competitors apply by default photos arrive close to their original quality.

Group Video Calls

Group calls support multiple participants in a single video call, which is enough for family catch-ups, study groups, or quick team check-ins.

End-to-End Encryption

IMO states that personal messages and calls are protected with end-to-end encryption, meaning only you and the recipient can read or hear them. Public voice rooms are not E2E encrypted by design, since they’re intended as open spaces.

Voice Rooms (Voice Club)

The Voice Club lets you drop into or host live audio rooms with strangers and friends — somewhere between a podcast and a group call. It’s a polarizing feature: some users love it, others want to turn it off. You can disable it under Me → Settings → Functions → VoiceClub.

Low Data Consumption

A typical IMO voice call uses roughly 250–400 KB per minute, and HD video runs around 4–6 MB per minute. Compared to many alternatives, this is meaningfully lighter, which matters if you’re on a capped mobile plan.

Cross-Platform Compatibility

IMO runs on Android, iOS, Windows, and Mac, and your chat history syncs across devices when you sign in.

Stickers, GIFs, and Emojis

A built-in sticker store and GIF library cover the usual expressive needs, including localized packs for Urdu, Arabic, Hindi, and other major languages.

Cloud Backup and Chat History

Chats are stored in the cloud tied to your phone number, so reinstalling the app or switching phones restores your conversations without manual export.

What’s New in the Latest Version

Recent IMO updates have focused on privacy and call quality. Highlights from recent release notes:

• Privacy Chat: Screenshot Block, Time Machine, and Disappearing Messages
• Invisible Friend: hide selected contacts with a shake gesture
• Optimal Light: automatic lighting correction for night video calls
• General performance optimizations and bug fixes

Always check the “What’s New” section on the Play Store listing for the exact build notes.

System Requirements and Compatibility

Minimum Android Version

Android 5.0 Lollipop or higher. Older devices on Android 4.x are no longer supported by the latest APK.

Supported Devices

Phones, tablets, and Chromebooks. ARM and ARM64 architectures are both supported through the universal APK.

Storage and RAM Requirements

At least 200 MB of free storage (the install footprint grows once chat data accumulates) and 2 GB of RAM for a smooth experience. The Lite version runs comfortably with 1 GB RAM.

How to Download IMO APK Safely

There are two safe routes:

1. Google Play Store — the default and safest option. Searches for “IMO” or visit play.google.com/store/apps/details?id=com.imo.android.imoim.
2. Trusted APK source — only if you need an older version, a region-locked build, or your device doesn’t have Play Services. Stick to well-known APK directories that publish hashes and developer signatures.

Things to avoid: any site offering “premium unlocked,” “mod APK,” or “pro version” of IMO. IMO is free already — these are almost always wrappers around malware.

How to Install IMO APK on Android

1. Download the APK from a trusted source to your phone.
2. Allow unknown sources. Go to Settings → Apps → Special access → Install unknown apps, choose your browser or file manager, and toggle Allow.
3. Open the APK file from your Downloads folder.
4. Tap Install and wait for the process to finish.
5. Open IMO, enter your phone number, and verify with the OTP sent by SMS.
6. Grant permissions for contacts, microphone, and camera when prompted.

The whole process takes under two minutes on a decent connection.

How to Install IMO on PC (Windows and Mac)

IMO doesn’t ship a native desktop app on every platform, but there are three reliable options:

• IMO Web — open imo.im in any modern browser, scan the QR code with the mobile app, and chat from your computer.
• Official desktop installer — available for Windows from imo.im when offered for your region.
• Android emulator — install BlueStacks or LDPlayer, log into Google Play inside the emulator, and install IMO like any Android app.

The web client is the lightest and the safest place to start.

How to Update IMO APK to the Latest Version

• Play Store: open the Play Store, search IMO, and tap Update if available.
• APK route: download the newer APK and install it over the existing app your chats and account stay intact as long as the package name is the same.
• Auto-update: under Play Store → Settings → Network preferences → Auto-update apps, set it to Wi-Fi only so updates don’t eat your mobile data.

How to Use IMO Beginner’s Guide

Creating an IMO Account

Open the app, pick your country code, and enter your phone number. No email, no username — just the number.

Verifying Your Phone Number

IMO sends a 4–6 digit code by SMS. If it doesn’t arrive in 60 seconds, tap Resend or choose the voice call option, which dictates the code instead.

Adding Contacts

IMO scans your phone contacts and automatically shows which of your existing contacts already use IMO. You can also add people manually by entering their number.

Making Your First Video Call

Open a chat, tap the video icon at the top, and IMO will start ringing on the other end. To switch between front and back cameras, tap the flip icon during the call.

Sending Photos, Videos, and Documents

In any chat, tap the paperclip or plus icon, choose Gallery, Camera, Document, or Voice Note, and send. Files up to several hundred MB are supported.

Hidden Features and Pro Tips

• Self-destructing messages — long-press a message to send it as a disappearing one.
• Time Machine — clear chat history that’s older than a set period automatically.
• Screenshot Block — prevents screenshots inside protected chats on supported devices.
• Storage manager — under Settings → Storage, you can clear cached media in bulk and reclaim several GB.
• Two-factor PIN — add an extra PIN to your account so a SIM swap alone won’t hijack it.
• Background data limit — limit IMO’s background data under Android’s app data settings to save mobile data.

Is IMO Safe to Use?

IMO is generally safe when installed from the Play Store or imo.im. The risks are not the app itself but where you download it from and what permissions you grant.

Encryption and Data Protection

IMO uses end-to-end encryption for personal one-on-one chats and calls, according to the developer. Group voice rooms and public Voice Club content are not E2E by design. The app declares that no user data is shared with third parties and that data in transit is encrypted.

App Permissions Explained

IMO asks for contacts (to find your friends), microphone (for calls), camera (for video), storage (for media), and phone (for verification). All are expected for a messaging app. Be cautious of any “IMO mod” that requests SMS or accessibility access — that’s a red flag.

Common Privacy Concerns

The most common complaint is the Voice Club feature surfacing suggestive content. Disable it under Me → Settings → Functions → VoiceClub. Beyond that, IMO has had its share of historical security audits the latest builds have addressed previously disclosed issues, but as with any messenger, keep the app updated.

Is IMO Banned in Any Country?

IMO’s availability varies by region and changes over time. Several Gulf and Middle Eastern countries have restricted VoIP services in general, which has at various points affected WhatsApp calling, Skype, FaceTime, and IMO.

Using IMO in UAE, Saudi Arabia, and Qatar

Historically, IMO calls have been blocked or restricted in the UAE due to local telecom regulations on VoIP. Status changes — check your country’s current Telecommunications Regulatory Authority guidance before relying on it. Saudi Arabia lifted blanket VoIP bans some years ago and most apps work normally. Qatar generally permits VoIP messenger calling.

If IMO calling is restricted where you live, the legal route is to use a service licensed by your local regulator (such as BOTIM or C’Me in the UAE), not to bypass restrictions with a VPN — which can violate local law.

Legal Alternatives in Restricted Regions

• BOTIM — licensed in the UAE
• C’Me — licensed in the UAE
• HiU Messenger — licensed in the UAE
• Voico — licensed in the UAE

Troubleshooting Common IMO Problems

IMO Not Sending Verification Code

• Check that your number is entered with the correct country code.
• Wait the full 60 seconds before tapping Resend.
• Try the voice call verification option instead of SMS.
• Disable any SMS-blocking app temporarily.
• Confirm your carrier isn’t filtering A2P (application-to-person) SMS.

IMO Calls Not Connecting or Dropping

• Restart your Wi-Fi or mobile data.
• Make sure IMO has Microphone and Camera permissions.
• Switch between Wi-Fi and mobile data to test which network is at fault.
• If you’re in a region with VoIP restrictions, calling may be blocked at the network level (see the country section above).

Installation Failed Error

• Free up at least 500 MB of storage before installing.
• Uninstall any previous IMO version (older signed builds can clash).
• Re-download the APK — the file may be partially corrupted.
• Confirm the APK matches your CPU architecture (universal APKs cover both ARM and ARM64).

IMO Keeps Crashing or Freezing

• Clear the app cache under Settings → Apps → IMO → Storage → Clear cache.
• Update to the latest version.
• Restart the phone.
• As a last resort, uninstall and reinstall — your chats will restore from the cloud after sign-in.

No Sound During Calls

• Make sure your phone isn’t in silent or Do Not Disturb mode.
• Check that the call volume (not media volume) is turned up.
• Test with another app to rule out hardware issues.
• Toggle the speaker icon during the call.

Can’t Add New Contacts

• Re-grant the Contacts permission under app settings.
• Ask the other person to make sure their IMO account is active.
• Pull down on the contact list to refresh.

IMO vs Other Messaging Apps

Feature	IMO	WhatsApp	BOTIM	Signal	Telegram
Free calls	✅	✅	✅ (paid in UAE on some plans)	✅	✅
HD video	✅	✅	✅	✅	✅
Works on weak networks	Excellent	Average	Good	Average	Good
End-to-end encryption	Personal chats	All chats	Limited	All chats by default	Secret chats only
Cloud chat backup	✅	✅ (Google Drive)	✅	❌ (by design)	✅ (Telegram cloud)
Group call size	Multiple	32	Limited	40	200 (voice chat)
Voice rooms / live audio	✅	❌	❌	❌	✅
Legal in UAE	Restricted	Restricted	✅ Licensed	Restricted	Restricted

IMO vs WhatsApp

WhatsApp wins on universal adoption almost everyone has it. IMO wins on call stability over weak connections and on regions where WhatsApp calling is restricted.

IMO vs BOTIM

BOTIM is the licensed VoIP option in the UAE. Outside the UAE, IMO is the stronger product with a larger user base and a richer feature set.

IMO vs Signal

Signal is the privacy-first choice open-source protocol, no metadata retention, no ads. IMO is more feature-rich but less paranoid about data. If privacy is your top concern, Signal wins; if you want better call quality on weak networks and you’re fine with a mainstream messenger, IMO is the better pick.

IMO vs Telegram

Telegram is built around big groups, channels, and bots; it’s more of a social platform than a private messenger by default. IMO is built around calling especially international calling.

Pros and Cons of IMO

Pros

• Excellent call quality on slow networks
• Free international voice and video calls
• Lightweight and storage-efficient
• Available in over 30 languages
• Cross-platform sync across mobile, web, and desktop

Cons

• Contains ads
• Voice Club / public rooms can surface unwanted content unless disabled
• Group call sizes are smaller than Telegram or WhatsApp
• VoIP calling restricted in some Gulf countries
• Some users report inconsistent OTP delivery on certain carriers

Best Alternatives to IMO in 2026

1. WhatsApp — the global default; best for reaching the widest audience.
2. Signal — the strongest choice for privacy and metadata minimization.
3. Telegram — best for large communities, channels, and bots.
4. BOTIM — the right choice if you live in the UAE and need licensed VoIP calling.
5. Viber — solid alternative with similar feature set and good call quality.

Real User Reviews and Ratings

IMO holds a 4.3-star rating across roughly 9 million Google Play reviews. The recurring themes:

• Praise for call quality on weak connections and free international calling.
• Complaints about ads and the Voice Club feature appearing prominently.
• Some users report OTP delivery issues on specific carriers.
• Generally positive reviews from users in regions with high international call costs.

Expert Verdict Is IMO Worth Downloading?

For anyone who makes regular international calls — to family abroad, remote colleagues, or contacts in countries with patchy mobile networks IMO is hard to beat. The call quality on weak 3G is genuinely better than WhatsApp or FaceTime, the data usage is lower, and the app is free.

If you live in a country where IMO VoIP is restricted, use the locally licensed alternative (BOTIM in the UAE). If your top priority is privacy with no compromises, Signal is the better choice. For everyone else, IMO is a solid, well-engineered messenger worth keeping installed alongside whatever you already use.

Frequently Asked Questions

1. Is IMO APK safe to download? Yes, when downloaded from the Google Play Store or imo.im. Avoid “mod” or “premium unlocked” versions from random sites, as these often contain malware.

2. Is IMO free to use? Yes. All IMO-to-IMO voice calls, video calls, and messages are free worldwide. You only pay for your data.

3. Does IMO work without an internet connection? No. IMO is a VoIP and instant messaging service, so it requires either Wi-Fi or mobile data to function.

4. How much data does an IMO video call use? Roughly 4–6 MB per minute for HD video and around 250–400 KB per minute for voice-only calls.

5. Can I use IMO on multiple devices? Yes. Your IMO account is tied to your phone number and syncs across Android, iOS, IMO Web, and the desktop client.

6. Is IMO end-to-end encrypted? Personal one-on-one chats and calls are end-to-end encrypted according to the developer. Public Voice Club rooms are not E2E.

7. Why is IMO not working in UAE? The UAE restricts VoIP calling on most international messaging apps. The licensed alternatives are BOTIM, C’Me, and HiU Messenger.

8. How do I delete my IMO account? Open the app, go to Me → Settings → Account → Delete Account, confirm with your phone number, and your account and chats will be permanently removed.

9. Why am I not receiving the IMO OTP? Common causes include carrier filtering of automated SMS, a blocked country code, or a temporary service outage. Try the voice call verification option as an alternative.

10. Can I use IMO on my PC? Yes. Use imo.im in any browser and scan the QR code with your mobile app, or install an official desktop client where available.

11. What’s the difference between IMO and IMO Beta? IMO Beta is the pre-release channel for new features still being tested. IMO is the stable version most users should run.

12. Does IMO support group video calls? Yes, group video calls are supported with multiple participants in the same call.

13. Can I hide my online status on IMO? Open Me → Settings → Privacy and you can control who sees your online status and last-seen timestamp.

14. How do I block someone on IMO? Open the chat, tap the contact’s name at the top, scroll down, and select Block Contact. Blocked users can’t call or message you.

15. Does IMO save my chat history if I uninstall it? Yes. Chats are tied to your phone number on IMO’s cloud. Reinstalling and signing in restores your history automatically.

16. Is IMO better than WhatsApp? IMO is better for call quality on weak networks and for free international calling. WhatsApp is better for reach because almost everyone uses it. Many people keep both installed.

17. How do I turn off the Voice Club feature? Go to Me → Settings → Functions → VoiceClub and toggle it off.

Final Thoughts

IMO has carved out a niche that bigger messengers don’t really compete in: dependable international calling on networks that other apps give up on. Whether you’re calling home from abroad, running a small business across borders, or just want a backup messenger that works when WhatsApp gives you the spinning wheel, IMO earns its place on your home screen.

Download the latest version from the Play Store or a trusted APK source, take two minutes to disable Voice Club if it’s not your thing, and you’re set.

About the Author

Written by your editorial team — a group of mobile-app reviewers who test communication apps across Android and iOS, including real-world testing on 3G, 4G, and 5G networks across Pakistan, the UAE, and Southeast Asia. We update this guide whenever IMO releases a major version.