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Fully Signal vs Yesim: Consumer eSIM App or Your Own eSIM Brand?
Yesim is a Switzerland-based consumer eSIM app for travellers. Fully Signal is a white-label wholesale platform where businesses sell eSIM data in 210+ countries under their own brand, at their own prices, through a partner panel or REST API. Yesim suits an individual traveller; Fully Signal suits a business building its own eSIM offer.
In this article
Yesim is one of the consumer eSIM apps travellers find when searching for data abroad. For a business, the real choice isn't "which consumer app is best" — it's whether to send customers to another brand at all.
At a glance
| Yesim | Fully Signal | |
|---|---|---|
| Type | Consumer eSIM app | B2B white-label wholesale platform |
| Brand | Yesim | Yours |
| Who sets the price | Yesim | You |
| Where customers buy | Yesim app | Your channels |
| API for partners | Check current terms | REST API, webhooks, sandbox |
| Repeat revenue | Yesim's | Yours |
When a consumer app is enough
- You're travelling yourself
- You run a content site and only want to recommend apps
- You don't want to touch pricing or the customer relationship
When you need your own eSIM brand
- You sell travel — trips, stays, flights, tours — and want connectivity in the basket
- You run an app or platform and want eSIM inside it
- You're a telecom, MVNO or ISP extending roaming for subscribers (guide)
- You want to bundle, run promotions and keep the margin
What Fully Signal gives you
- eSIM data in 210+ countries and regions
- QR codes in your colours and logo and white-label install pages in 8 languages
- Tier 1 wholesale prices with lower tiers as you grow (pricing)
- REST API: catalogue, orders, top-ups, refunds, eSIM status
- Webhooks for completed, failed and refunded orders and activated or expired eSIMs
- A sandbox with a test balance and sample data
- No contract, no minimum
Five questions to ask any eSIM partner
Whichever route you take, ask these before you commit:
- Whose brand does my customer see at checkout, in the QR code and on the install page?
- Who sets the price — and can I bundle the eSIM into my own products?
- What happens to unused eSIMs if a trip is cancelled? (refund rules)
- Can customers top up the same eSIM, and who earns from it? (top-ups)
- Can I test before paying — is there a sandbox with test keys? (sandbox)
A consumer app will usually answer "ours" to the first two. A white-label platform answers "yours".
What your first week on Fully Signal looks like
| Day | What happens |
|---|---|
| Day 1 | Register, open the panel, browse the sample catalogue, create a test API key |
| Days 2–3 | Pick your top destinations and price ladder; set your QR colour and logo |
| Days 3–5 | Developers build against the sandbox (or you plan manual sales from the panel) |
| Day 5+ | First deposit unlocks live prices and keys; your first branded eSIM goes out |
FAQ
Is Fully Signal a Yesim alternative?
For businesses that want to sell eSIMs under their own brand, yes.
Where is Yesim based?
Yesim presents itself as a Switzerland-based eSIM provider.
Can I resell Yesim under my brand?
Check Yesim's current partner terms. On Fully Signal, white-label delivery is standard for every partner.
Does Fully Signal sell to travellers directly?
No. Fully Signal is B2B: partners sell to their own customers, so we never compete with you for them.
