Hashtag Tracker: Get Alerts for New Posts on Instagram, TikTok and X

Short answer: AyeWatch alerts you when new posts use a hashtag on Instagram, TikTok or X. It's built for seeing each new post: campaign entries, user content, brand mentions, a niche you follow. It is not a hashtag analytics tool. It doesn't chart reach or volume.

Instagram

1. Open Create a monitor → Instagram.
2. In Monitor, choose Hashtag.
3. Type one hashtag, like #streetphotography. No spaces.
4. Pick how often to check and click Create monitor.

Instagram Search is the other option. It finds reels from the last week that match words, like "street photography". Instagram has no account mode, so you can't get alerts for one person's posts. More in the Instagram hashtag tracker guide. Running a hashtag contest? See tracking giveaway entries.

TikTok

Open Create a monitor → TikTok, choose Hashtag and type the tag, like #booktok. It costs 2 credits a check. TikTok Search finds the newest videos from the last day that match words, for 1 credit. More in the TikTok hashtag tracker guide.

X (Twitter)

Open Create a monitor → X, keep Search and put the hashtag in the query. X lets you combine tags and operators: #buildinpublic lang:en or #launch OR #producthunt. Add a filter like "founders sharing revenue or launch milestones" to skip the noise. More in how to track hashtags on X.

Side by side

Platform	Mode	Tags per monitor	Credits per check
Instagram	Hashtag	1	2
TikTok	Hashtag	1	2
X	Search	Several, with OR	2

The optional Only alert me about filter works on all three and adds 1 credit a check.

What you get

The first check saves the current posts as a starting point, so you are not flooded with old ones. After that, every check that finds something new sends one alert. The headline is the post itself, or "3 new from …" when several land at once, with a link to each post and its text.

Alerts land in your feed and as push in the AyeWatch iOS and Android app. On Pro and Pro+ you can also turn on email, Slack, or a webhook.

Plans: Free Preview gives you 3 credits to try a monitor on a daily check. Pro is $9 a month for 500 credits and checks as often as hourly. Pro+ is $19 a month for 1,500 credits and adds ASAP mode. Failed checks are refunded, and the form shows the exact daily credit use before you save.