# ByteSIM eSIM - Data Plan — user reviews > 143 indexed App Store user reviews of ByteSIM eSIM by ByteSim Limited, rated 4.60/5 from 497 ratings. - Source: https://appshunter.io/ios/app/bytesim-esim-data-plan/id6450693631/reviews - App overview in markdown: https://appshunter.io/ios/app/bytesim-esim-data-plan/id6450693631.md - Rating breakdown: 5★ 422 · 4★ 25 · 3★ 11 · 2★ 8 · 1★ 31 ## What do users think of ByteSIM eSIM? Overall sentiment: negative **Pros** - 🚀 Excellent travel assistant - 🔒 Great customer support - 👍 Easy to use - 👍 Reliable and fast - 👍 Cheap and affordable **Cons** - 🐛 False advertising and misleading claims - 🐛 Unreliable service and poor connectivity - 🐛 Terrible customer service and lack of support - 🐛 Complicated setup and activation issues - 🐛 Spam emails and privacy concerns **Commonly reported bugs** - eSIMs not activating or working as promised - Inconsistent data speeds and throttling - Incompatibility with certain devices or networks - Billing and refund issues **Most requested features** - Longer expiration period for eSIMs - Ability to reissue eSIMs or extend validity - Improved network coverage and reliability - Better customer support and communication ## Newest reviews (12 of 143) ### 3/5 — No more China VPN *2026-06-02, version 3.0.12* Was happy for a while as the China Esim came with a built-in VPN. But not anymore, so really disappointing ### 3/5 — Great in China but sux in Australia *2026-04-18, version 3.0.0* Australia data seems need to be improved. ### 2/5 — C’è di meglio *2026-04-05, version 2.2.33* A New York spesso andava via il segnale anche per ore , mediocre ### 4/5 — Decent app with good support *2026-03-23, version 2.2.33* The plans are quite affordable. App is decent, not the most responsive, but decent. Had good experience with customer care on WhatsApp. Data stopped working completely after FUP. Customer care refunded the remaining days without a hassle. ### 1/5 — False advertisement *2026-02-05, version 2.2.31* I purchased the 5G unlimited 10 days package in Croatia. After 1 hour of use I went from 200Mbps to 5 and can no longer work. Support is unresponsive and the issue has persisted for hours. ### 1/5 — Ne fonctionne pas pour l’Asie *2026-02-04, version 2.2.30* Aucune connexion pendant tout mon séjour, malgré un forfait payé quand même cher, je ne recommande pas. ### 1/5 — Stupid expiration policy and false advertising *2026-01-25* Beware you shouldn't buy from these guys if you prefer planning in advance. I bought mine for a trip 3 months from today. Only to find out after the fact that the eSIM expires in 2 months after purchase. Nowhere is this stated on the product page or the order confirmation email. Nor does support offer any potential resolution like re-issuing another eSIM, as the FAQ seems to suggest. Patently false advertising. Buyer beware!! (EDIT: App Store response from ByteSIM was a complete nothingburger. An empty useless response costumed in fake politeness. I guess that's better than their customer support - which was flat out rude, and, most importantly, just as unhelpful. ) **Developer response:** Hi there, thanks for taking the time to share this — we’re really sorry for the frustration. The expiry rule should have been clearer, and we understand how upsetting this is when you’re planning ahead. Please message us directly so we can check your order and help you get a usable eSIM for your trip. We’ll make this right for you. ### 1/5 — Do not use this!! *2026-01-09, version 2.2.27* Terrible eSIM plan, I was purchased a 5GB per day plan, however on two of those days, I woke up and was notified that my data had already been used up for that day. Customer service was impossible to get a hold of and when they did reply it was robot-like, then they started ignoring me once I explained the issue. I strongly recommend against this, there are plenty of better companies with plans that deliver what you pay for and that offer good customer service. ### 1/5 — Worest data ever *2025-12-25, version 2.2.26* The worst data ever. They lied and said I used the entire data in less than two hours and I used five extra units, but I only used one GB. I used another app, Simily, which is much better as you can also track your data. ### 1/5 — Scam *2025-12-24, version 2.2.26* Gave me 3g instead of 5g, completely useless, no refund offered, helpline didn’t speak English, pure scam ### 1/5 — you will completely lose access to your phone number *2025-12-21* There’s no Sim transfer, so you will lose your phone number forever. **Developer response:** We apologize for the inconvenience. Actually, transfer capability depends on the specific data plan. Please contact our 24/7 support team directly—we can verify for you immediately if your specific eSIM supports switching to a new device. ### 2/5 — Slow response, lagging tabs *2025-12-06, version 2.2.25* App seems offline and disconnected, some options don’t work ## Most critical reviews (10 lowest-rated) ### 1/5 — Unreliable connection and poor customer service *2026-08-09* Disappointing experience during a 20-day trip. I purchased a 20gb data plan with unlimited calls and texts, but experienced repeated call drops mid-conversation across 7-8 different phone numbers, with multiple failures happening on the same day. I also had sudden network outages where I couldn't connect to the internet for several minutes at a time throughout the day. When I contacted customer support with detailed evidence (screenshots of dropped calls, specific phone numbers affected), they were dismissive and repeatedly blamed "signal conditions on the receiving party's end" despite the pattern occurring consistently across multiple different numbers and days. They refused to acknowledge it could be a service issue on their end and denied any refund. The unreliable calls made it genuinely difficult to make reservations and communicate during my trip. If you need dependable voice calls while traveling, I'd look elsewhere. calling feature they advertise as "unlimited talk" was unreliable when I needed it most. **Developer response:** We sincerely apologize for the connectivity and support issues you experienced. We want to make this right. Please message us on WhatsApp at +85292900577 and we will process a refund for your plan. ### 1/5 — Internet is very slow *2026-06-23, version 3.0.17* I was using bytesim in Asia and it worked well, but in Europe and Mexico the internet is so slow that you can’t even open the app ### 1/5 — お金の無駄だから利用しないで。 *2026-06-22, version 3.0.17* 私達は3日間のラオスの旅で利用しました。 街、田舎どこでも接続は悪く、QRコード支払いにはいつもお店のWiFi を利用しなければならなく、とても不便でした。 2度と利用したくない会社です。 ### 1/5 — Slow speed *2026-06-11, version 3.0.16* Unreliable speed and coverage ### 1/5 — No real unlimited *2026-05-24, version 3.0.11* I got an esim with „unlimited“ 5G data plan and tried to used it in germany. It connects to O2 provider, i got 20mbits 1m next to my friends phone which is getting between 200-250 connected to the same radio mast through the same provider. After using 5GB the internet got blocked and wasn usable anymore even with best network recieval and healthy connection ### 1/5 — Horrible customer service *2026-05-21* Bought a package which should have included a number, it did not. Contacted support through their WhatsApp service and they had horrible support. They even refused to give a refund even though I requested it within an hour of purchase. Horrible company, use any other eSIM service. **Developer response:** We sincerely apologize for the negative experience you had with your purchase and our support team.Could you please provide your Order ID? We will look into this immediately and help you get this resolved. ### 1/5 — 中國廠商 *2026-05-15, version 3.0.11* 用下影片就限速，吃到飽方案白花的5g跟4g一樣慢 ### 1/5 — Worst service dont buy *2026-05-01, version 3.0.4* The worst esim service i ever bought I never posted a review for any app before but this one worth the review as its extremely bad Keep on disconnecting It ruined my trip Totally waste of money and time ### 1/5 — Bought 5G Unlimited but not working *2026-04-24, version 3.0.2* I purchased 5G Unlimited plan for 3 days for my MY trip, internet stopped working after one day and the app shown 12.55GB of usage. I don't mind if it stated clearly about the FUP so I can better plan everything out, but got data stopped only after a day caused so much problem for my trip. ### 1/5 — Worst service *2026-02-27, version 2.2.31* Service was not provided, they said they have technical problems. But they declined a refund ! ## Most praised reviews (10 highest-rated) ### 5/5 — No hassle, great service! *2026-06-21* No need to go through complicated settings, or fumbling around. Simple, reliable service, which seems comparable to any as you might expect from T-Mobile or other major carrier! ### 5/5 — Easy to use *2026-04-15, version 2.2.33* Easy to use via app and eco ### 5/5 — Best Support *2026-04-05, version 2.2.33* This is the best support ever ### 5/5 — E-Sim correct *2026-03-25, version 2.2.33* Works correctly like most major E-Sims, even often with 5G. Take care to install properly, with “ data roaming” on, to prevent errors. ### 5/5 — Genial *2026-03-03, version 2.2.31* Resuelve cualquier incidencia con rapidez ### 5/5 — Excellent Travel Assistant *2026-02-24, version 2.2.31* Great product and service for travelling through Asia. We use this service (data only option for maps, reviews and WhatsApp….what more do you need?) on a 2 week vacation to Vietnam and Hong Kong. Easy to order through the app and the customer service via WhatsApp is excellent for any eSIM install needs. I will use again on my next adventure. Very good prices compared to Canada roaming charges. ### 5/5 — It works and cheaper than others *2026-01-20, version 2.2.28* eSIM works everywhere and prices most friendly I’ve ever seen in apps. ### 5/5 — Great Customer Support *2026-01-04* I was a bit confused when installing, so I reached out to customer support and received a response in minutes. They were very helpful and kind and got my problem all sorted out! ### 5/5 — まだ使ってはいないのでわからないけど､､､ *2025-11-15, version 2.2.20* 会計まではすんなりできたのですがQRコードが届かずにそのまま使ってしまい多分国内の会社のSIMをそのまま使っていてちょっと勿体無いことをしてしまいましたが、eSIMになっていないことに気づいて問い合わせたところ、とても丁寧すぎる対応で無事にeSIMをゲットすることができました。まだ外で使っていないので通信範囲とか接続状況とかはわからないですけど、丁寧な対応に心打たれました。あの時はありがとうございました。 ### 5/5 — Stable and fast *2025-11-12, version 2.2.20* Used in all around europe, works flawless... Use my code get $3 off OUW98 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-08.*