# InstaSIM: Global Travel eSIM — user reviews > 23 indexed App Store user reviews of InstaSIM by TSIM COMMUNICATION SERVICES PRIVATE LIMITED, rated 4.00/5 from 4 ratings. - Source: https://appshunter.io/ios/app/instasim-global-travel-esim/id6503248174/reviews - App overview in markdown: https://appshunter.io/ios/app/instasim-global-travel-esim/id6503248174.md - Rating breakdown: 5★ 3 · 4★ 0 · 3★ 0 · 2★ 0 · 1★ 1 ## Newest reviews (3 of 23) ### 4/5 — Connectivity and Service is good *2025-12-10, version 8.1* Dont take per day 1 gb option as it gets exhausted fast and resets from 24 hrs after activation other plans are good ### 5/5 — Worked perfectly ! *2025-12-09, version 8.1* Used it all over europe ! Worked extremely well ! Will use it again ### 5/5 — Kudos to seamless service *2024-12-11, version 4.5* Its a perfect companion for your phone while travelling Highly Recommended! ## Most critical reviews (10 lowest-rated) ### 1/5 — Soldi buttati *2026-08-04, version 8.16* Ho acquistato una sim per il Giappone per 30gg, ma dopo pochissimi giorni ha smesso di funzionare. Ho contattato il servizio clienti via chat, ma l’operatore oltre alle operazioni standard non è stato d’aiuto. Tra l’altro rispondeva ad ogni singolo messaggio ogni 2-3 minuti, rendendo la chat estenuante. Alla fine sono passata ad altro operatore, chiedendo il rimborso di quanto non utilizzato, ma nutro poche speranze. Lasciate perdere! ### 1/5 — Assistenza assolutamente inesistente *2026-07-30, version 8.16* Ho acquistato una SIM per 30 giorni per il Giappone e l’app mi ha dato una scadenza di soli 3 giorni, sono stato letteralmente un’ora a chattare con un operatore (bot?) che faceva sempre le stesse domande ma non mi rispondeva mai sulla durata della SIM. Lasciate perdere! ### 1/5 — Stuck without data and no customer service and can’t log into an account! *2026-07-04, version 8.16* This is the worst! They sent me an email confirming my payment but no activation link. I downloaded the app and now it’s locked me out for an hr a the otp they sent so I could log into didn’t work and I’m locked out of the account! What is the point in an eSIM if it takes hours!! My advice is strongly avoid!!! ### 1/5 — Don’t bother *2026-05-15, version 8.11* I purchased a 60 day 60GB Euro eSIM & from the beging it’s been a disaster. The app told me on purchase that the eSIM was already expired so I tried to contact through the app and through email & could never get through or get a response. When I did arrive overseas and turned my phone on the reception/connection was so bad I couldn’t use it anywhere, yet those I travelled with had perfect reception with the local cards they purchased. Don’t waste your time with this option, it won’t work. Buy one locally is probably your best option. Never again!!! ### 1/5 — Utility *2026-05-09, version 8.11* It’s a Marketing App with no info on usage. ### 1/5 — Sim *2026-03-09, version 8.9* Sim not working in kiruna sweden and no response on instachat ### 1/5 — Worst Turn Around Time and Customer Service *2026-02-24, version 8.9* Takes a long time to issue an esim after document submission. ### 3/5 — Service Good App Rubbish *2026-05-22, version 8.12* Have not had any issues with the service once it was up and running. The app on the other hand has been almost useless. I had multiple sims and it keep loosing them and not keeping track of what was used, what had expired or how much much data was used. ### 4/5 — Good coverage but wrong data usage shown *2026-07-28, version 8.16* The network coverage is good and highspeed. But the app shows data usage limit as 1 GB inspite of unlimited pack. Usage goes in negative which creates fear of using excess data and charges thereon. But fortunately no extra charges incurred. ### 4/5 — T-SIM for Balkans *2026-05-29, version 8.14* Great e-sim for most of our trip, excluding a few days in Bosnia. ## Most praised reviews (10 highest-rated) ### 5/5 — Great Deal For Europe *2026-08-11* The eSIM I purchased worked pretty much everywhere in Germany and Czechia. Even streamed Netflix on it. Great price $25 for 50 Gigs. I almost took off a star because the printed instructions had the wrong activation link and I had to get on the chat with them - they then resolved the issue quickly by sending the correct activation link. ### 5/5 — Best eSIM around *2026-07-29* Used TSIM twice this year for Euro trips under 2 weeks Download and TSIM was flawless Will be using again in the fall, twice! ### 5/5 — Good and affordable plans *2026-07-06, version 8.16* I bought it for myself for Japan trip it worked wonderfully even better sometimes then others using local SIM card. Then i bought physical s card also for my mother who doesnt have esim option in android. ### 5/5 — Seamless operation *2026-05-16, version 8.11* Bought eSIMs for Mauritius. Hongkong and Australia. All auto connected with no issues. ### 5/5 — Feedback of 7 days abroad *2026-03-29, version 8.9* Best SIM Service ### 5/5 — Good product *2026-01-09, version 8.3.1* Really good product, fast speed and good coverage in Japan. ### 5/5 — Great choice for travelling in Japan *2026-01-07, version 8.3.1* I bought the e-sim for a really good price after purchasing a real sim for my partner on Amazon with a promo code we received after the first purchase. When we arrived in Japan the e-sim strated working without any problems and we had a good coverage during all our trip. Most 3/4G than 5G but for Maps and browsing was absolutely more than enough. ### 5/5 — Great Service *2025-12-14, version 8.1* This was the first time i used TSIM services. They have exceeded all my expectations and network was great in UAE with no issues at all. ### 5/5 — Good service *2025-12-13, version 8.1* Very nice service Good customer care support worked well in Indonesia ### 5/5 — Best esim service *2025-12-12, version 8.1* No internet disruption and smooth service one of the best i can say i will use for my travels for sure and refer to my friends also --- *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 2026-09-02.*