Checked 28 Oct 2026 · Sources · All comparisons
SimilarTech alternative
SimilarTech is now “a Similarweb company”: its sign-ups go to Similarweb, and technographics sit inside Similarweb’s sales-led plans and API. Tellstack is a lookup API with prices on the page.
Get a free keySide by side
| Feature | Tellstack | SimilarTech / Similarweb |
|---|---|---|
| Price | £49 a month for 10,000 credits; £39 a block from 5 | Not public: business and enterprise plans say “Talk to sales” |
| Price per lookup | 0.49p | Not public. The API uses data credits per endpoint; credit prices aren’t listed |
| Free | 100 lookups a month, the whole API, no card | A free Technology Checker for market share and usage; a free trial through Similarweb sign-up (length not stated) |
| API access | Every plan | “available as part of our Business and Enterprise plans, or alternatively as a standalone package” |
| Technologies of a domain | One credit a lookup, with version, confidence and evidence | A website technologies endpoint for customers with the Technographics feature; its legacy reference lists 10 data credits a request |
| Changes | Watches on a domain or technology, sent to signed webhooks | Technology signals (added, removed, renewal coming up) at 10 credits a result, daily |
| Sites using a technology | Lists from our own index, 10 rows a credit | Contact lists by technology, and a technologies dataset through its Batch API on selected plans |
| Technologies covered | 7,647 | “more than 5,000” in its technologies dataset |
| Freshness | Index monthly, watched sites weekly, live scans on request | Technology data refreshed weekly; the dataset “Updated daily” |
| History | From our first scan, October 2026 at the earliest | “up to 7 years of historical data”, depending on plan, across Similarweb data |
Where SimilarTech is stronger
- It comes with the rest of Similarweb: traffic, competitive intelligence and sales intelligence alongside technographics.
- Years of history and a daily-updated technologies dataset.
- Signals such as “renewal coming up”, which we don’t try to predict.
- Contact lists by technology for sales teams.
Where Tellstack fits
- Prices on the page and a free key, with no sales call.
- Just the technology lookup, priced for that alone.
- The evidence behind each finding, so you can check it.
Sources
Read on 28 Oct 2026. They may have changed since.
- similartech.com: “A Similarweb Company”, sign-up
- similartech.com/contact-lists-by-technology
- similarweb.com/corp/pricing: plans, talk to sales
- similarweb.com/corp/daas/api: API access, credits, history
- similarweb.com/technology: free Technology Checker
- developers.similarweb.com: website technologies and technologies dataset
- docs.similarweb.com: technology signals
SimilarTech and Similarweb are trademarks of their owner. Tellstack is made by Onibaku and isn’t affiliated with or endorsed by either. Spot something out of date? Email admin@onibaku.co.uk and we’ll correct it.