How to Use Hashtags App on Instagram: A Comprehensive Guide

If you've searched for how to use a hashtag app on Instagram, you're really asking two things: how do the hashtag features built into Instagram itself work, and how do the separate research apps and tools help you find better tags? Both matter. Instagram has its own hashtag mechanics you should master first, and a good research tool on top of that can save hours and sharpen your choices. This guide covers both, so you know what the app does natively and how outside tools genuinely add value versus where they overpromise.

Want expert help putting this into practice? EasyHashtags can guide you through it.

Instagram's built-in hashtag features

Before reaching for any third-party tool, it's worth knowing what Instagram already gives you. The app itself is a capable hashtag research tool if you know where to look:

• Search and Explore: type a keyword into the search bar, tap the Tags filter, and Instagram shows matching hashtags along with the number of posts using each. That post count is your size gauge.
• Related tag suggestions: when you search or start typing a tag in a caption, Instagram suggests related hashtags, which is a fast way to discover adjacent tags you hadn't considered.
• Hashtag pages: tapping any tag opens its feed with "Top" and "Recent" sections, letting you judge whether your content fits alongside what's already ranking.
• Following hashtags: you can follow a tag so its posts appear in your feed, which is a useful way to monitor what performs in a tag you care about.

Mastering these native features gives you most of what you need. Everything an external app does is essentially a faster, more organised version of this.

What third-party hashtag apps actually do

Related: what hashtags to use on youtube: Your Ultimate Guide.

Dedicated hashtag tools exist because doing the above manually, for dozens of tags, across every post, is slow. A good research app typically offers:

• Bulk tag suggestions from a keyword or a photo, generating candidate lists in seconds.
• Size and competition data so you can see at a glance which tags are giant, medium, or niche.
• Grouping and saving of tags into reusable sets you can copy into posts.
• Related-tag discovery that surfaces adjacent communities you might be missing.

The value is speed and organisation, not magic. No app can guarantee reach; it can only help you find and manage relevant, appropriately-sized tags faster than doing it by hand. Keep that expectation realistic and these tools earn their place. Where they save the most time is the tedious middle of the process: generating a broad list of candidates, seeing each one's size instantly, and stashing the good ones into named sets. Doing that manually for every post is what causes most people to give up on hashtag research entirely, so a tool that removes the friction often means the difference between researching consistently and not bothering at all.

How to actually add hashtags to a post

Whichever tool you research with, the mechanics of adding tags on Instagram are simple, and there are a couple of choices worth making deliberately:

• In the caption: type your tags directly, usually at the end after a few line breaks so they don't clutter your message.
• In the first comment: post the tags as a comment immediately after publishing. They work identically for reach but keep your caption clean.
• Copying saved sets: if you keep sets in a notes app or a research tool, paste the relevant one, then tailor its most specific tags to the individual post.

Placement doesn't meaningfully change your reach, so choose whichever keeps your post readable. What matters far more is that the tags themselves are relevant and correctly sized.

A safe, effective workflow

See also: Master Instagram Hashtags: What Hashtags to Use on Instagram for Maximum Reach.

Combining Instagram's native features with a research tool, here's a workflow that works reliably:

• Describe the post in plain words, then use a tool or Instagram search to generate candidate tags from those words.
• Filter by size, keeping mostly niche and mid-sized tags your account can actually rank in, with only one or two larger ones.
• Verify relevance by opening each tag's page and checking the top posts resemble your content.
• Save the vetted set into a themed group you can reuse for similar posts.
• Rotate and tailor your sets rather than pasting one identical block on every post.

This blends the speed of a tool with the judgment only you can apply, which is the combination that produces genuinely good tags.

Cautions with hashtag apps

A few warnings save real trouble. First, never connect an app that asks for your Instagram password directly or promises automated posting, liking, or "growth"; these violate Instagram's terms and can get your account restricted or banned. Legitimate research tools don't need to take over your account. Second, be wary of apps that hand you a generic "best hashtags" list identical for everyone, since those inevitably lean on oversized, irrelevant tags that won't help you. Third, watch for banned or flagged tags slipping into auto-generated lists; a single restricted tag can suppress your whole post, so always eyeball a generated set before using it.

The safest tools are the ones that inform your decisions rather than act on your behalf. Research and organisation, yes; automation of your actual account, no.

Putting it together

Used well, the combination is straightforward: Instagram's own search, Explore, and hashtag pages give you the raw data and a way to verify fit, while a research tool speeds up discovery, sizing, and organisation so you're not doing it all by hand. The tool proposes; you decide. That division of labour keeps your tags relevant to your content and matched to your account, which is what actually drives reach.

If you want that research and sizing handled quickly and safely, a tool like EasyHashtags can surface related, appropriately-scaled tags and let you build reusable sets without ever handing over control of your account. Master Instagram's built-in features first, layer a trustworthy research tool on top, apply your own judgment on relevance, and keep your sets fresh and rotated. That's how to use hashtag tools on Instagram in a way that genuinely helps, rather than chasing a shortcut that doesn't exist.