Mapians
Unlimited / 3 days
Japan KDDI, 3 Days, Unlimited Data /day, 10mbps
£7.50£2.50 per day
Buy now∞ Unlimited eSIMs
Unlimited data eSIMs, explained honestly
Unlimited means no data cap on the network you connect to. Here's what you get, what fair use means, and when a big fixed plan is the better deal.
Mapians
Unlimited / 5 days
Japan KDDI, 5 Days, Unlimited Data /day, 10mbps
£10.00£2.00 per day
Buy nowMapians
Unlimited / 7 days
Japan KDDI, 7 Days, Unlimited Data /day, 10mbps
£14.00£2.00 per day
Buy nowMapians
Unlimited / 10 days
Japan KDDI, 10 Days, Unlimited Data /day, 10mbps
£15.50£1.55 per day
Buy nowMapians
Unlimited / 30 days
3Network (Unlimited GB) - UK Usage
£35.00£1.17 per day
Buy nowWhat "unlimited" means
Full-speed data with no monthly cap. Some plans, like KDDI's 10Mbps option, set a fixed speed instead, which is still enough for HD video.
Fair use, stated upfront
Operators may slow speeds during extreme use, such as running a laptop hotspot all day. We show any limit on the plan page before you pay.
Unlimited or big fixed plan?
Most travellers use under 1.5GB a day. A 50GB or 100GB plan is usually cheaper than unlimited and never slows down.
Support & FAQ
Unlimited eSIM FAQs
Still unsure? Our 24/7 Live Chat and ticket team will help.
Is hotspot allowed on unlimited plans?
Yes. Fair use applies to very heavy tethering; any specific cap is shown on the plan.
Why do some brands charge so much more for unlimited?
Some providers price unlimited at a premium because users don't track data. We price by the operator's real cost.
Can I top up an unlimited plan?
You can extend it by buying another plan from the app before it expires.
Roaming savings calculator
How much will you save on your trip?
Three quick answers. We compare roaming, an airport SIM and the Mapians plan we'd recommend. All amounts in GBP.
1
2
17142130
3
What does your network charge per day
abroad?
Airport SIM price (optional)
Roaming and airport figures are your inputs or typical examples. Mapians prices are plan prices including tax, converted at an indicative exchange rate.
Mapians vs other eSIM brands
More plans, lower prices, real networks
The same trip usually costs less with Mapians, especially on 10GB and above.
| Mapians | Airalo | Holafly | Saily | |
|---|---|---|---|---|
| Starting price | £1.50 | from about US$4.50 | day plans from US$3.90 | from US$1.99 (selected countries) |
| Big-data value (Europe) | 25GB / 28 days £8.99 · £0.36/GB (Llamaya) | €0.72 / GB (UK 50GB, 30 days, €36) | Sold mainly as unlimited daily plans | Close to Airalo on most plans |
| Branded operator eSIMs | Orange, Vodafone, Three, O2, Llamaya, KDDI, dtac | Network not always named before purchase | Varies by destination | Varies |
| Plan types | Per-day, fixed, unlimited, network bundles | Fixed + some unlimited | Mostly unlimited | Fixed + some unlimited |
| Dedicated seafarer plans | Yes, with crew discount | No | No | No |
| Refunds | 30-day money-back guarantee | Full refund only if the eSIM was not installed | Conditions apply | Flexible policy |
| Pay in your currency | 9 currencies incl. ₹, AED, SAR | Multiple | Multiple | Multiple |
| Support | 24/7 Live Chat & tickets, priority SLA | Chat, email, WhatsApp · no phone line | Chat | Chat |
| Unlimited plans | Yes: UK, Japan, Thailand + more | Some destinations (3GB/day then 1Mbps) | Yes, with fair-use slowdowns | Some plans |
| Hotspot on unlimited | Allowed (fair use shown upfront) | Varies | Capped 500MB–1GB/day | Allowed |
| Seller | UK-registered company, verifiable | Singapore-based | Spain-based | Part of Nord Security |
Competitor information from published pages and third-party comparisons (Saily blog, May 2026; Amigo eSIM, Oct 2026; Jetpac review, 2026). Prices change often, so check each provider's site before buying.
The truth about "unlimited"
Most "unlimited" data isn't really unlimited
Under operators' fair-use policies, many unlimited plans give you a set amount of high-speed data, then cut you to a crawl. Here's what the small print says, from published sources.
| Provider | How it's sold | What actually happens | Source |
|---|---|---|---|
| Airalo | Unlimited (selected destinations) | 3GB high-speed per 24 hours, then 1Mbps | Saily review of Airalo, 2026 |
| Holafly | Unlimited data | Fair-use slowdowns after heavy use; hotspot capped at 500MB/day (Europe) or 1GB/day (Asia) | Jetpac Holafly review, 2026 |
| T-Mobile (US roaming) | Unlimited data abroad | 5GB high-speed, then 256kbps | ShopBack US roaming guide, Aug 2026 |
| Jio (India) roaming packs | "Unlimited" data packs | 1GB–10GB high-speed, then 64kbps | Jio packs as published (prune.co.in, July 2025) |
| e& (UAE) Daily Data | Daily roaming data | 500MB per day, then 64kbps | eand.ae Roaming Daily Data Plan, 2026 |
5G / 4G50–300 Mbps
Video calls, HD streaming, hotspot, maps
1 Mbpsafter Airalo's daily limit
Maps and messages; video buffers
256 kbpsafter T-Mobile's 5GB
Slow web pages, photos take ages
64 kbpsafter Jio / e& limits
WhatsApp text only. Maps barely load
The Mapians way
We tell you exactly how much full-speed data you get
- Every plan shows its full-speed allowance in GB, upfront
- Per-day plans clearly say what happens after the daily allowance (128kbps until midnight)
- Big fixed plans like 100GB give full speed the whole time, from £0.15/GB
- Speed caps, such as KDDI's 10Mbps option, are shown on the plan before you buy
Full speed for a whole month
£29.99≈ 3.2GB of full-speed data
every dayGet full-speed data
100GB · 31
daysOrange · 41 countries
Fair-use details are taken from the providers' published terms or from the reviews named in the Source column, and can change. Check each provider's current terms.
Proof, not promises
How Mapians compares, with the numbers
Published prices, compared like for like. Sources listed underneath.
Price per GB
Lower is better.
30 days in Europe
Holafly unlimited (published US$74.90)≈ £56.32
Mapians · Orange 100GB£29.99
Most travellers use under 1.5GB a day, so 100GB covers a month of heavy use for well under half the price.
What's included
✓
30-day money-back, even if installedAiralo refunds are criticised as restrictive
✓
24/7 Live Chat & ticketsAiralo: chat, email and WhatsApp only
✓
Hotspot on unlimitedHolafly caps it at 500MB–1GB a day
✓
Clear full-speed allowanceHolafly and others slow you after a fair-use limit
✓
Named network before you buyMany apps say "best available network"
Sources: Mapians plan prices (Oct 2026); Airalo UK pricing via Amigo eSIM comparison (Oct 2026); Holafly pricing, hotspot limits and plan start rules via Jetpac review (2026); Airalo support and refund themes via Saily review and Kimola consumer insights (2026). Currency conversions are indicative.
What goes wrong elsewhere
The top eSIM complaints, and how we fixed each one
From analysis of customer reviews across the market: connectivity is 40% of complaints, activation problems 23%, and support 20%.
THE PROBLEMConnection drops or slow speeds
Unknown "best available" networks and heavy throttling.
THE MAPIANS FIX
We name the exact operator and speed before you buy, and use tier-1 networks like Three, Orange, Vodafone and O2.
THE PROBLEMActivation fails or QR won't scan
Confusing APN settings and one-shot QR codes.
THE MAPIANS FIX
One-tap install in the app, a 5-second device check at checkout, and a free replacement if anything fails.
THE PROBLEMSupport is a chatbot
Slow replies when you're stuck abroad.
THE MAPIANS FIX
24/7 Live Chat and tickets answered by trained people, with a faster SLA than other providers.
THE PROBLEMRefunds are refused
Refunds only if the eSIM was never installed.
THE MAPIANS FIX
30-day money-back guarantee, including when it's installed but won't connect.
THE PROBLEMDays lost before the trip
Some plans start counting from purchase.
THE MAPIANS FIX
Install early: most Mapians plans start when you first connect abroad. Each plan states its rule.
THE PROBLEMHotspot cut off
Daily tethering caps on unlimited plans.
THE MAPIANS FIX
Hotspot allowed on our plans, with any fair-use limit stated upfront.
THE PROBLEMUnclear data limits
Hard to tell how much data you actually need.
THE MAPIANS FIX
Plan finder recommends one plan from your trip length and usage, in plain words.
Complaint shares from Kimola's consumer-insight analysis of Airalo reviews (2026); other issues from Jetpac and Saily reviews.
After you buy
We stay with you for the whole trip
Most eSIM sellers stop at the QR code. That's where our service starts.
- 0 minInstant delivery
QR code by email and in the app, with one-tap install.
- Day beforePre-trip check
A reminder to install over Wi-Fi, and a quick check it's ready.
- On landingAuto-connect + arrival tips
Your plan activates on the local network. We send a simple "you're connected" guide.
- During tripLow-data alerts & top-ups
Alerts at 80% used and top-ups in two taps, so you never run dry.
- Any time24/7 Live Chat & tickets
Fast answers in plain language, around the clock.
- After tripMoney-back if it failed
If it didn't work, you're covered for 30 days.
Network accuracy
You see the real network before you pay
- Operator name on every plan: Three, Orange, Vodafone, O2, KDDI, TRUE
- Speed shown upfront: 4G, 5G or capped speeds like 10Mbps
- Coverage list for every country on the plan
- If a network underperforms, we move you to another partner network free
7branded operator networks
190+countries covered
24/7Live Chat & tickets
Recognitions & partners
Trusted by networks, payment providers and travellers
Companies HouseRegistered UK company
ICO registeredUK data protection
PCI-DSS Level 1Secure card payments
Trustpilot Excellent4.9/5 rating
App StoreMapians eSIM app
Google PlayMapians eSIM app
GDPR compliantYour data stays private
256-bit SSLEncrypted checkout
Mapians for Business
Sending employees abroad? Cut travel data costs for good.
One account for every employee trip: client visits, events, project deployments. Lower cost than roaming packs, central billing, and a team that treats you as a long-term partner.
Lower than roamingCorporate pricing below operator roaming packs and our own retail prices.
One dashboardAssign eSIMs to employees before they fly, set data limits, see usage.
Monthly invoicingOne invoice for all trips, with tax invoices for your finance team.
Priority SLA24/7 Live Chat and tickets with a dedicated account manager.
Company travel dashboardExample
AK
Ananya K.🇬🇧 London · client visit
12.4 / 20GBRM
Rahul M.🇦🇪 Dubai · expo
3.1 / 10GBSP
Sara P.🇸🇬 Singapore · project
18.0 / 20GBTrips this quarter46
Saved vs roaming£2,140
A real UK company
You're buying from a registered British business
Not an anonymous app. Our company details are public and you can check them yourself on the UK government register.
Roam Communication LimitedRegistered in England & Wales
- Company number
- 16116903
- Registered office
- 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ, United Kingdom
- VAT number
- GB 452 8391 20
- ICO data protection
- ZB619042
- Payments
- Stripe · PCI-DSS Level 1
- Network partners
- Authorised distributor
🔒 SSLGDPR compliantUK consumer law30-day refunds
Ready when you are
Land connected. Pay local prices.
Pick your destination, get your QR code by email and set up in two minutes.