eFlySim vs Tech21 Ltd
eFlySim (eflysim.com) and Tech21 Ltd (uk.tech21.com) are stores in related niches (Mobile & Wireless and Mobile & Wireless Accessories) in the AdLibrarySpy index. Tech21 Ltd gets more monthly visits than eFlySim: about 38K vs 8K.
The facts we hold on both, side by side. Checked November 2, 2026.
In short
- Tech21 Ltd gets more monthly visits than eFlySim: about 38K vs 8K.
- Tech21 Ltd's store is older: created Oct 2020, eFlySim's in Jan 2025.
| Fact |  eFlySim |  Tech21 Ltd |
|---|---|---|
| Monthly visits (SimilarWeb) | 8K (Sep 2026) | 38K (Sep 2026) |
| Store created | Jan 2025 | Oct 2020 |
| Based in | United Kingdom | United Kingdom |
| Niche | Mobile & Wireless | Mobile & Wireless Accessories |
| Payment options detected | Apple Pay, Google Pay, PayPal Express Checkout, Shop Pay | Apple Pay, Klarna, PayPal Express Checkout, Shop Pay |
Questions shoppers ask
- What is the difference between eFlySim and Tech21 Ltd?
- Tech21 Ltd gets more monthly visits than eFlySim: about 38K vs 8K. Tech21 Ltd's store is older: created Oct 2020, eFlySim's in Jan 2025.
- Do eFlySim and Tech21 Ltd sell the same things?
- Both are listed in related niches: eFlySim in Mobile & Wireless, Tech21 Ltd in Mobile & Wireless Accessories.
Facts from the Meta Ad Library, SimilarWeb, Trustpilot and each store; a fact only one of them has is left out. Is eFlySim legit? · Is Tech21 Ltd legit?