Comparison

Trevio esim vs KeepSim

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Trevio esim

Get instant mobile data in over 200 countries without needing a physical SIM card. Easily purchase and activate data plans in seconds for seamless global connectivity. Save money compared to traditional roaming charges with affordable, contract-free options.

Highlights
  • Instant mobile data activation
  • Global coverage in 200+ countries
  • No physical SIM card required
  • Affordable data plans
  • No contracts or hidden fees
  • Secure browsing connection
Features
Read full description

Travel the world without limits. Trevio gives you instant mobile data in over 200 countries, without the hassle of physical SIM cards. No more airport SIM hunting. No more expensive roaming. Just open the app, choose your destination, and connect in seconds. What is an eSIM? An eSIM is a digital SIM that lets you activate a mobile data plan instantly, no physical card needed. Just download, install, and go. Why Trevio? Instant activation Buy your plan and get connected in seconds, even before your flight lands. Global coverage Access fast and reliable data in 200+ countries worldwide. No contracts Pay only for what you need. No commitments, no hidden fees. Affordable plans Save up to 80% compared to traditional roaming charges. Easy to use Simple interface, clean design, and seamless setup. Secure connection Built-in protection for safe browsing wherever you travel.

About

KeepSim

Read full description

KeepSim helps you keep every important SIM, eSIM, and virtual phone number alive — a local-first tracker for numbers you can't afford to lose. Some numbers matter long after you stop using them daily — a 2FA SIM, a prepaid travel line, a backup work number, a virtual line you can't lose. Miss the keep-alive window once and reactivation becomes a multi-step headache. KeepSim puts every number in one panel so you see what needs attention before it's gone. HOW KEEPSIM HELPS YOU KEEP EVERY SIM ALIVE > One-tap actions you set up once Pre-configure SMS, call, or web actions per number. When a renewal window opens, launch from detail or a widget — iOS confirms before anything sends. > Home Screen + Lock Screen widgets, every size Home Screen small / medium / large, plus Lock Screen rectangular / circular / inline. Top-N at-risk numbers visible at a glance; tap to jump straight to that number — no "open the app first" step. Widgets refresh after every keep-alive. > The app icon itself changes (Pro) 5 dynamic app icon styles (Poker, Calendar, Solari, LCD, Classic SIM). The KeepSim icon on your Home Screen — not a widget — shows days left for your most urgent number. Glance and you know whether to act. > Mark a keep-alive complete in one tap After the SMS sends or the call ends, mark it done. KeepSim recalculates the next due date and refreshes widgets and app icon. > Masked display across every surface Numbers display partially masked across the list, detail, and widgets. Check status in public without exposing the full number. > Local-first, no number reselling, no auto-messaging Your data lives on your device, or in your own private iCloud account if you enable Pro sync. Every communication action goes through iOS so you confirm before sending. KeepSim never auto-sends SMS or auto-dials. BUILT FOR MULTI-NUMBER USERS • Track every SIM, eSIM, prepaid line, and virtual number in one panel • Set keep-alive cycles, due dates, and reminder timing • Sort by risk — the most urgent number is always on top • Interface in English, Chinese, Japanese, Korean, and more; light and dark mode WHAT YOU GET FREE Download and use, no sign-up, no contact list access: • Up to 2 numbers • Default Kairo SIM Objects theme (light / dark / Dynamic Type) • Reminder 3 days before due • 1 basic action per number (SMS / call / web) • All Home Screen + Lock Screen widget sizes • Masked display and local storage KEEPSIM PRO — ONE-TIME UNLOCK If you manage more than a couple of numbers, Pro covers the real workload: • Unlimited numbers — track as many as you carry • Multi-stage reminders — 7 days, 3 days, and 1 day before due • All themes — Mission Timer Cards, Aero Operations Ledger, Telecom Command Console, and more, syncing across app and widgets • 5 dynamic app icons — Poker, Calendar, Solari, LCD, Classic SIM. The KeepSim icon shows days left for your most urgent number, refreshing after each keep-alive • iCloud sync — keep your numbers consistent across iPhones and iPads via your own iCloud; KeepSim's servers never see your data One-time purchase. Restore Purchases works on new devices. No subscription, no auto-renewal. WHAT KEEPSIM DOESN'T DO Clear boundaries, no surprises: • We don't sell or trade phone numbers • We don't provide carrier service or manage your carrier account • We don't auto-send SMS or auto-dial — every action requires your confirmation through iOS • We don't upload your numbers to our servers; data lives on your device or your private iCloud • We don't track you, we don't include ad SDKs, we don't read your contacts WHO KEEPSIM IS FOR • Students abroad and people working across borders • People holding on to a home-country SIM, a travel eSIM, or a prepaid line they can't afford to lose • Multi-line workers juggling work, backup, and virtual numbers • Anyone with a 2FA-only number that must stay alive Keep every number alive before it slips off your radar.

Screenshots

Trevio esim4 screens
KeepSim4 screens

Verdict

The call

The clearest difference is in-app purchases: Trevio esim at none against KeepSim's 1. On price, update cadence, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. KeepSim sells 1 one-off in-app purchase. Trevio esim asks for nothing beyond the download.

UpkeepUpdate frequency

Trevio esim ships an update every 6 weeks, KeepSim every 3 weeks. The most recent releases landed on October 3, 2026 and October 7, 2026 respectively.

Scorecard1 real difference · 8 level
Trevio esim versus KeepSim: the parameters behind the verdict, then further details
ParameterTrevio esimKeepSim
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 6 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.017.0
Further details — not scored
Size63 MB62 MB
Age rating4+4+
DeveloperGREAT WHITE洋 闵

In-app purchases

None

Trevio esim

No in-app purchases

1 purchases

KeepSim

One-time1
  • KeepSim Pro$4.99

Questions

Is Trevio esim free?
Trevio esim is free to download, with no in-app purchases.
Is KeepSim free?
KeepSim is free to download, with in-app purchases available.
Do Trevio esim or KeepSim have ads?
Neither Trevio esim nor KeepSim shows ads.
Which is updated more often, Trevio esim or KeepSim?
Trevio esim ships an update every 6 weeks, and KeepSim every 3 weeks. Most recently, Trevio esim was updated on October 3, 2026 and KeepSim on October 7, 2026.

Other comparisons