Instant Username vs Zero To 1000
Instant Username and Zero To 1000 both check if a name is available on many platforms at once. Instant Username checks more social sites as you type; we also check domains, app stores, code packages and trademarks.
Should you use Instant Username or Zero To 1000?
Instant Username for a quick social-only check; Zero To 1000 when the name also needs a domain, app store, code package or trademark.
| If you need | Use |
|---|---|
| A quick social handle check as you type | Instant Username |
| The most social sites in one search | Instant Username |
| A domain, app store or trademark check as well | Zero To 1000 |
| One name available on every platform you pick | Zero To 1000 |
Compare others: Namechk and HandleGrab.[5, 7]
Instant Username vs Zero To 1000: how do they compare?
Instant Username checks more social sites; we check domains, app stores, developer sites, Web3 names and trademarks too.
| Feature | Zero To 1000 | Instant Username |
|---|---|---|
| Sites checked | 54 platforms | 100+ social media sites |
| Domains | 11 endings, including .com and .ai | Not stated |
| Trademarks | US register; EU register when it answers | Not stated |
| Price | Free: 10 checks a day | Free |
| Sign-up needed | No | Not stated |
| Ads | None | Google AdSense code on its pages |
| Name suggestions | Closest available version, plus Create | Not stated |
| How results are confirmed | Up to 5 checks; 2 must agree | Checks if the public profile page exists |
| What it says about accuracy | Checks can be incomplete; sure only at sign-up | Confirm on the platform before deciding |
"Not stated" means we found no answer on Instant Username's own pages, which we read in archived copies from October 2026.[1, 2, 3, 4, 5, 6, 7, 9, 10]
Where is Instant Username stronger?
Instant Username checks more social sites, shows results as you type, and has run since 2019.
| Instant Username | Detail |
|---|---|
| More social sites | 100+, against our 16 social platforms |
| Results as you type | Results appear while you type the name |
| Rule check | Marks a name that breaks a platform's rules as invalid |
| Running since | 2019, when it was 3rd Product of the Day on Product Hunt |
Where is Zero To 1000 stronger than Instant Username?
We check far more than social media, and an available result is never more than 15 minutes old.
| Zero To 1000 | Detail |
|---|---|
| Domains | 11 endings, including .com, .ai and .io |
| App stores | 6, including the App Store and Google Play |
| Developer sites | 7, including npm, PyPI and Docker Hub |
| Web3 names | 6, including ENS (.eth) |
| Trademarks | Live marks in the US register, and the EU register when it answers |
| Two checks agree | We call a name available only when two independent checks agree |
| Privacy | No ads, analytics or tracking cookies |
How our checks work[1, 3, 5, 6]
Sources (10)
- PrimaryZero To 1000: How it works
- PrimaryZero To 1000: How tokens work
- PrimaryZero To 1000 privacy policy
- PrimaryZero To 1000 terms of use
- PrimaryZero To 1000's platform catalog: the 54 platforms our checker covers
- PrimaryZero To 1000: Trademark name checker and rules
- PrimaryInstant Username Search home page (archived)
- PrimaryAbout Instant Username Search (archived)
- PrimaryInstant Username Search FAQ (archived)
- PrimaryInstant Username Search terms of service (archived)