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Review Insights · Google Play

Stimuler AI: English Fluency

Stimuler · 120,081 ratings · ★ 4.8

4.8
★★★★★
120,081 ratings
5 ★
105,365 (88%)
4 ★
10,192 (8%)
3 ★
1,274 (1%)
2 ★
637 (1%)
1 ★
2,548 (2%)
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Top complaints - extracted from 32 negative reviews

Recurring phrases mined from 1-2★ reviews. The bigger the percentage, the more users have the same problem. Fix the top 2-3 in your version and you have product-market fit on day one.

1
"stuck"
5 negative reviews mention this · 16% of all complaints
★★★★ "I can't do anything on this app, I paid for monthly subscription. But when I want to learn daily lessons, it always gets stuck in the middle of the lesson. Even when I already finished the last question, it got stuck, my results didn't appe…" - Nurul Hidayah
2
"paid"
4 negative reviews mention this · 13% of all complaints
★★★★ "very frustating, the apps goes so slow to reaponse all my answer, i paid the pro btw" - Gaki
3
"already"
4 negative reviews mention this · 13% of all complaints
★★★★ "I can't do anything on this app, I paid for monthly subscription. But when I want to learn daily lessons, it always gets stuck in the middle of the lesson. Even when I already finished the last question, it got stuck, my results didn't appe…" - Nurul Hidayah
4
"didn"
4 negative reviews mention this · 13% of all complaints
★★★★ "I can't do anything on this app, I paid for monthly subscription. But when I want to learn daily lessons, it always gets stuck in the middle of the lesson. Even when I already finished the last question, it got stuck, my results didn't appe…" - Nurul Hidayah
5
"energy"
4 negative reviews mention this · 13% of all complaints
★★★★ "unit 8 about energy levels is glitching. I've had comeback for 3 days in a row an the video stop in the exact same time and because this error i had lost my streak. Also when they used local term like "gojek" or "bubur ayam", the app can't …" - Yuda

📋 All 32 negative reviews

Every 1-2★ review we fetched. Use the copy button to grab them all for your own analysis (paste into ChatGPT/Claude with a prompt like "summarize core user problems, group by theme, ignore bugs, focus on missing features").

★★★★ Gaki 5/8/2026 v2.3.265
very frustating, the apps goes so slow to reaponse all my answer, i paid the pro btw
★★★★ Rashmi.R. Mallick 5/7/2026 v2.3.265
The app is still laggy and crashes ..The APP crashes a lot & sometimes just keeps loading, leads to loose my progression & restarts . FYI am using poco x6 pro so my device is pretty powerful & so is my network.
★★★★ Julieth Bustos 5/7/2026 v2.3.264
freezer all time
★★★★ Nurul Hidayah 5/6/2026 v2.3.256
I can't do anything on this app, I paid for monthly subscription. But when I want to learn daily lessons, it always gets stuck in the middle of the lesson. Even when I already finished the last question, it got stuck, my results didn't appear and I had to repeat the same lesson many times.
★★★★ Leighton Slattery 5/5/2026
inept design.
★★★★ Vijender Jangir 5/5/2026
worst app money deducted twice and did not get subscription.
★★★★ Akshay gupta 5/4/2026 v2.3.264
Don’t install this app. Don’t take the subscription. Very bad experience. The AI is not up to the mark and barely corrects mistakes or helps improve English. Feedback is basic and not useful. Customer support is worse-I tried contacting them multiple times but got no response. No proper help center. Waste of money. Not recommended.
★★★★ Robby Antonius 5/4/2026
The application is not working even though I have subscribed. The application error has been uninstalled and reinstalled, It still doesn't work.
★★★★ Bobby Nur yusuf 5/3/2026 v2.3.264
There are many bugs, and every time I speak, it doesn't get recorded, even when I'm speaking loudly and clearly. The developer hasn't responded to my repeated attempts to contact them over the past few months, even though I've paid a premium for this service. I feel like I've been scammed.
★★★★ a7hgjfg sy427s 5/3/2026 v2.3.264
EXPENSIVE APP.
★★★★ Joni Setiadi 5/2/2026 v2.3.264
this app is freeze at unit 8. I already subscribe for pro but it's nothing better. Tried to make a complain via Whatsapp and still didn't get respond. I revised my rate from 5* to 1.
★★★★ Yuda 5/2/2026 v2.3.264
unit 8 about energy levels is glitching. I've had comeback for 3 days in a row an the video stop in the exact same time and because this error i had lost my streak. Also when they used local term like "gojek" or "bubur ayam", the app can't catch it when i said those words.
★★★★ Luthfi Adzani 5/2/2026 v2.3.264
Jadi member pro dan udah ngejalanin selama 2 minggu, tiba2 screen nge-freeze di Unit 8 | Mood & Energy. Saya mau refund!
★★★★ Giona sebastian 5/1/2026 v2.3.198
the worst app, initially it was doing well for learning, yet when it recharged, it was not working properly, sometimes cannot open some
★★★★ wiwi andriani 5/1/2026
AI nya belum bagus
★★★★ Robby Guci 4/30/2026 v2.3.264
stuck on the application on 21 strike (days) chapter energy level. already chat the develover, but they didn't respond my chat.
★★★★ Shaurya Gupta 4/27/2026 v2.3.264
First of all I had to go go through this long onboarding process and then once it is done now they are teaching english a very basic level i would have time to waste one hour just to get to the level that I currently am.
★★★★ Gerson Céspedes Culman 4/27/2026 v2.3.264
No funciona las opciones de evaluación de fluidez, entonación y pronunciación, así que no cumple con lo que esperaba para mejorar el inglés. Además no funciona el contacto de WhatsApp. No hay soporte para tratar esos errores de la aplicación. He escrito al correo y no hay respuesta. No instalen y mucho menos compren los planes si no quieren perder plata. El soporte no responde por ningún canal de atención. Parece una estafa pues el programa no cumple correctamente la función de grabación.
★★★★ Pratik Patel 4/26/2026 v2.3.260
Worst app and support....Never subscribe pro...they are chitter....don't even bother to respond....
★★★★ Dr Sumayya 4/25/2026 v2.3.263
This is a worst app I ever found
★★★★ Sandarbh Aryal 4/25/2026
rubbish call option not working properly
★★★★ Fayyadh Arrazan M 4/24/2026 v2.3.263
Saya bingung ketika saya ingin mendapatkan pelajaran baru. Harus melalui tombol itu, jika terlewat maka tidak bisa akses pelajaran baru. Dan kata-kata kutipan di akhir pelajaran membuat app nya hang sehingga saya tidak bisa mendapatkan streak day.
★★★★ Aulia Mei Azizi 4/24/2026 v2.3.263
likely to stuck after first video finish. reconsider to stop use it
★★★★ Gabriel Retriver 4/24/2026
es mala porque tiene muchos errores tecnico,se quedaban pegada la conversación, de repente se alteran los botones que nunca tocaste,cabe recalcar que compre la versión premiun
★★★★ saico “Ouki” 4/24/2026 v2.3.263
many screen freezing pages, have reported no response, and no option to skip from frozen pages
★★★★★ Kroco SOLAS 5/5/2026 v2.3.265
2 days using it and the apps 30-40% buffering simulator trying to recognize my voice. I'm more frustrated trying to make the AI recognize my voice than how broke my English is.
★★★★★ Santi MD 5/5/2026 v2.3.264
There's a problem when I learned Day 8. They included local movie titles and the app cannot analyze my pronunciation, although I've tried it exactly like their recording for an hour. I tried to contact the developer on whatsapp but no response. I already paid PRO for this app, and I got this kind of problem. And this is making me stuck and can't skip the exercise to the next day. This app should repair it asap, and erase all local vocabularies that might be not familiar in AI system.
★★★★★ Alan Diaz 5/3/2026 v2.3.264
el contenido es bueno, pero ya me termine todas las lecciones y aun no suben mas, por lo que cobran de suscripción esperaría que estén subiendo contenido con mas frecuencia
★★★★★ Hendra Gunawan 4/30/2026 v2.3.264
technicall bugs lesson about energy level , blocker blank
★★★★★ Toph Lvy 4/28/2026 v2.3.264
banyak fitur yang busuk banget voice recognize nya
★★★★★ akash kumar 4/24/2026 v2.3.263
After learn new words, screen stuck on "Preparing Exercises just for you"
★★★★★ Awan Aja 4/21/2026 v2.3.263
I don't think it detects my voice correctly as it marks my progress as completes even though I didn't say anything.

Sentiment summary

96%
Positive (4-5★)
1%
Neutral (3★)
3%
Negative (1-2★)

✓ Strong positive sentiment - clone path is harder, users like the existing app.