Everything you need to know about Instagram in one place — signing up and logging in, fixing common issues, writing a great bio, using Reels and Stories, downloading content, recovering a hacked account, deleting your account, and posting at the best time.
Last updated: September 23, 2026
Instagram is a free photo and video-sharing social networking app owned by Meta, available on iOS, Android, and the web at instagram.com. Users can post photos and videos, share disappearing Stories, create short-form Reels, message friends via Direct Messages (DMs), and follow accounts to see their content in a personalized feed.
Launched in 2010, Instagram has grown into one of the world's largest social platforms, used by individuals, creators, and businesses alike for entertainment, networking, and marketing.
Figure 1: The four core features that make up the Instagram experience.
To create an Instagram account, download the app from the App Store or Google Play (or visit instagram.com on desktop), tap "Sign up," and enter your phone number or email, create a username and password, and complete your profile.
To log in to Instagram:
The Instagram web version (accessed via a browser) supports most core features like browsing, posting photos, and messaging, but some features — like creating Reels or going Live — are only available in the mobile app.
If Instagram is not loading, try these steps in order:
If your Instagram account is hacked:
Deactivating temporarily hides your profile, photos, and comments until you log back in — fully reversible anytime. Deleting permanently erases your account and all data after a 30-day grace period, and cannot be undone once completed.
Your Instagram bio is limited to 150 characters, so every word counts.
Instagram Reels are short-form vertical videos (up to 90 seconds) that can include music, effects, filters, text overlays, and transitions. Reels appear in a dedicated Reels tab, the main feed, and the Explore page.
Reels are heavily favored by Instagram's algorithm for organic reach, making them one of the most effective formats for growing an audience and increasing visibility beyond your existing followers.
Instagram Stories are photos or short videos that appear at the top of followers' feeds and automatically disappear after 24 hours, unless saved to your profile's Highlights. Stories support interactive stickers (polls, questions, countdowns), music, links, and more.
Instagram does not offer a built-in way to view Stories completely anonymously — anyone who views your Story is visible to you in the viewers list. Third-party "anonymous story viewer" tools exist, but they require you to trust an outside service with your Instagram activity, so use caution and stick to reputable, well-reviewed options if you choose to use one.
Instagram doesn't offer a native "save to device" option for other users' public posts, but you can download your own content directly, or use trusted third-party downloader tools/websites for public content you have permission to save.
Always respect copyright and creator permissions when downloading content that isn't your own. Reposting someone else's video or photo without credit or consent can violate Instagram's community guidelines and copyright law.
To save audio you like for later use in your own posts, tap the audio name on a Reel or post and select "Save Audio" — it will then appear in your saved audio library when creating new content.
Instagram Lite is a smaller, lightweight version of the Instagram app (available on Android) designed for devices with limited storage or slower internet connections. It offers core features like feed browsing, posting, and messaging with a much smaller app size.
Instagram is officially available through the Google Play Store and Apple App Store. Downloading APK files from unofficial third-party sources carries security risks (malware, fake apps), so it's always safest to install Instagram or Instagram Lite directly from the official app stores.
Based on aggregate engagement data, the best time to post on Instagram generally falls on:
However, the truly optimal best day to post on Instagram depends on your specific audience's activity patterns. If you have a Business or Creator account, check your built-in Instagram Insights to see exactly when your followers are most active.
Buying Instagram followers is against Instagram's Terms of Service and is strongly discouraged. Purchased followers are typically fake or inactive accounts that don't engage with your content. This can:
Organic growth through consistent, quality content, Reels, and genuine engagement is slower but far safer and more effective long-term.
Threads is Meta's separate text-based conversation app, launched as a companion to Instagram in 2023. While Instagram is built around photos, Stories, and Reels, Threads focuses on text posts and public conversations (similar to X/Twitter). Your Instagram username and followers can be used to quickly set up a Threads profile, but they remain two distinct apps with different core purposes.
Log in through the mobile app or at instagram.com using your username/email/phone and password, or via "Log in with Facebook" if linked. Use "Forgot password?" to reset via email, SMS, or Facebook if needed.
Check your internet connection, force-close and reopen the app, clear the app cache, update to the latest version, restart your device, or check Instagram's status page for a wider outage.
Keep it within 150 characters, clearly state who you are or what you offer, include a call-to-action, use line breaks and emojis for readability, and add a link if you want to drive traffic elsewhere.
To deactivate temporarily, go to Edit Profile and tap "Temporarily deactivate my account." To permanently delete, log in via a web browser, go to the "Delete Your Account" page, select a reason, re-enter your password, and confirm — deletion completes after a 30-day grace period.
Deactivating temporarily hides your profile and is fully reversible by logging back in. Deleting permanently erases your account and data after 30 days, and cannot be undone once complete.
Reels are short-form vertical videos up to 90 seconds, supporting music, effects, and filters. They're heavily favored by Instagram's algorithm and are one of the best formats for growing reach.
Stories are photos or short videos that appear at the top of followers' feeds and disappear after 24 hours unless saved to Highlights. They support stickers, polls, questions, music, and links.
Generally weekday mornings (9-11 AM) and early evenings (5-7 PM), with Tuesday-Thursday seeing the highest engagement — but check your own Instagram Insights for your specific audience's activity.
No. Buying followers violates Instagram's Terms of Service, typically delivers fake/inactive accounts that hurt your engagement rate and organic reach, and risks account suspension. Organic growth is safer and more effective.
Try resetting your password immediately, or use Instagram's official "My Account Was Hacked" recovery form if you can't log in. Once recovered, enable two-factor authentication and review connected apps and login activity.