Every eSIM app shows about 4.7 stars, so the stars don’t help you choose. We read what people actually wrote instead. Here’s who wins.
Honest note: we’re Siima and we sell eSIMs too, so every app here is a competitor. We used only public data, nobody paid to be here, there are no affiliate links, and every number links to its source. How we did it
Look at these two apps. Almost the same stars. Very different customers.
Weighted average of the US, UK, Germany, France, Spain, Italy, Netherlands, Australia, Canada, Poland, Japan and Brazil App Stores — 891,622 ratings. The scale starts at 3.8.
Out of every 10 people who wrote a review in the past year, how many were happy?
3,030 App Store reviews from the US and UK stores, written in the last 12 months, at least 40 characters long (so a one-word “good” doesn’t count). Rounded to the nearest person.
More users doesn’t mean happier users. Top right is where you want to be.
KoletAiraloYesimSimlyJetpacMobiMatterSailyUbigiGigSkyBNESIMWe read all 1,271 angry (1–2★) reviews. Here’s what went wrong.
One review can mention several problems, so these add up to more than 100%.
| App | Won’t install | No signal / slow | Support | Refund | Data vanished | App / login | Price / charges | 1–2★ read |
|---|---|---|---|---|---|---|---|---|
| Kolet | 12% | 25% | 12% | 0% | 0% | 12% | 12% | 8 |
| Airalo | 10% | 35% | 28% | 11% | 9% | 5% | 14% | 175 |
| Yesim | 24% | 31% | 41% | 10% | 7% | 10% | 14% | 29 |
| Firsty | 33% | 27% | 7% | 0% | 0% | 20% | 13% | 15 |
| Simly | 0% | 40% | 30% | 30% | 10% | 20% | 20% | 10 |
| Jetpac | 22% | 31% | 38% | 6% | 16% | 9% | 6% | 32 |
| Nomad | 19% | 35% | 48% | 26% | 7% | 7% | 19% | 113 |
| Roamless | 26% | 39% | 16% | 13% | 6% | 16% | 26% | 31 |
| MobiMatter | 29% | 41% | 35% | 12% | 6% | 6% | 29% | 34 |
| Holafly | 18% | 33% | 45% | 23% | 6% | 9% | 21% | 289 |
| Saily | 18% | 31% | 31% | 34% | 7% | 9% | 17% | 235 |
| Maya Mobile | 14% | 45% | 27% | 11% | 2% | 5% | 16% | 44 |
| Ubigi | 21% | 29% | 38% | 15% | 5% | 13% | 13% | 131 |
| GigSky | 21% | 40% | 22% | 7% | 3% | 5% | 14% | 96 |
| BNESIM | 31% | 24% | 55% | 14% | 3% | 17% | 7% | 29 |
Tagged by keyword (e.g. “refund”, “no signal”, “QR code”, “support”), so treat these as close estimates. Apps with fewer than ~30 unhappy reviews swing a lot.
All 15 apps with enough reviews to judge. Score out of 100. Tap any score to see the source.
| App | App Store | Store ratings | Written reviews, 12 mo | Google Play | Trustpilot |
|---|---|---|---|---|---|
 Roamingo | 4.94 | 10,734 | 2 | 4.8 | 4.8 |
 GoMoWorld | 4.66 | 7,178 | 30 | 4.6 | 3.9 |
 Sim Local | 4.81 | 2,877 | 11 | 4.7 | 4.4 |
 aloSIM | 4.64 | 8,276 | 39 | 4.5 | 4.0 |
 RedteaGO | 4.43 | 3,370 | 36 | 3.7 | — |
 Flexiroam | 3.86 | 6,379 | 8 | 3.6 | 4.7 |
 Monty | 4.67 | 3,997 | 2 | 4.0 | 3.3 |
 Siimathat’s us | — | 0 | 0 | — | — |
Roamingo is the interesting one: 4.94★ from 7K+ App Store ratings, but only 2 real written reviews in a year — almost all its ratings are taps, with no text to check.
The good and the bad of each app, in ranking order.
Our app is new, so it has no ratings yet — that’s why it isn’t ranked above. Try our app and write an honest review. Help us improve and beat competitors not only on price.
Pick the line that sounds like you.
Only public data that anyone can check. The same rules for every app.
Mostly yes — they ask for ratings the same way, so they don’t break the tie. Holafly and Saily score 4.6+ everywhere, even though their written reviews are among the most negative. The odd ones out: BNESIM drops to 3.2 on Google Play, and Ubigi and Firsty sit lower on Trustpilot.
Every rating on this page and where it came from. All read on 2026-10-28.