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Tachyo vs WhatsThatSign
How do Tachyo and WhatsThatSign compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | Tachyo | WhatsThatSign |
|---|---|---|
| What it is | Tachyo collects STEM sign dictionary and reference entries in one searchable resource. | This ASL dictionary offers sign or word searches, with options for alternate spellings and an interface for finding signs. |
| Website | ||
| Type | Website | Website |
| Topic | ||
| Pricing | Not confirmed | Not confirmed |
| Platforms | Web | Web |
| Open source | Not stated | Not stated |
| Language | English | — |
| Alternatives |
Other options to consider
Sites similar to both Tachyo and WhatsThatSign.
The International Sign dictionary provides word entries, example texts, fingerspelling, and category browsing.
Visitors can search the interactive Toki Pona dictionary at nimi.li and browse its word entries.
The multilingual Sign Language Dictionary records more than 1,000 signed words across over 100 years and describes their meaning, use, and history.
STEM Dictionary presents technical signs used in STEM subjects, supporting Auslan interpreters, teachers, tutors, and learners.
The NZSL Online dictionary provides reference entries for New Zealand Sign Language learners and users.






