# GRE Math Knight — user reviews > 15 indexed App Store user reviews of GRE Math Knight by Vince Kotchian Test Prep, rated 4.50/5 from 52 ratings. - Source: https://appshunter.io/ios/app/gre-math-knight/id1535485326/reviews - App overview in markdown: https://appshunter.io/ios/app/gre-math-knight/id1535485326.md - Rating breakdown: 5★ 40 · 4★ 7 · 3★ 1 · 2★ 0 · 1★ 4 ## Most critical reviews (10 lowest-rated) ### 1/5 — Not Functional *2025-11-29* Doesn’t work…? You click the app and it opens to a page that says “please wait…” and the waiting is stagnant / never ends. I have the new iPhone … not sure why this would be happening **Developer response:** You could have emailed support instead of writing this review! But anyway, this is due to a bad Wi-Fi connection or it’s a normal delay the first time the app is opened. If you wait about 20 seconds it WILL load. ### 1/5 — Horrible *2025-10-30* Never worked, forever waiting. **Developer response:** We usually see this happen when someone has a bad Wi-Fi connection - I’d try again when you have a better one. Just wait about 20 seconds the first time you open the app. ### 1/5 — Just doesn’t work *2024-10-29* Stuck on loading screen and doesn’t start. Tried multiple times in a few days span **Developer response:** In my four years of experience this is always a Wi-Fi issue - try with a strong Wi-Fi connection. ### 1/5 — Never loaded *2024-05-11* Maybe someone could help me?? My app never loaded… when I try to open it it just says please wait… I’ve tried deleting and reinstalling. And it cost money so I’m a little annoyed!! ### 1/5 — Bugs? *2023-07-12* App does not load, which is a shame because I paid for it. **Developer response:** We haven’t encountered this before. Can you try uninstalling and reinstalling? ### 3/5 — load is slow *2026-02-04* I like the app, but whenever I reopen the app the load time takes 1~2 minutes. This is the only thing that I don't like as a user experience **Developer response:** Yeah, it’s an old app - sadly my devs are gone and it’s cost-prohibitive to update it so it loads faster. Glad you like it otherwise! ### 3/5 — Good not great *2024-05-08* Biggest issue is that the guidance on a problem is not helpful. It doesn’t explain the solution in sufficient detail. **Developer response:** Yeah, it’s more of a way to drill things than a robust teaching tool ### 4/5 — Charged without permission *2024-05-19* I just tried to download it and it charged me right away without asking! My question is, was the charge one time or will it charge me again in coming months? **Developer response:** Just once! ### 4/5 — No Cross-Device Support *2022-02-04* Math was always my weak point, so I’m glad something like this exists. However, I’m not happy that there’s no way to save my progress across devices. I would love to be able to practice on my phone as well as my iPad, but it seems that progress is saved per device. Hopefully that update is in the works. **Developer response:** Sadly, we probably won't be able to provide cross-device support in the near future. I don't have active devs, so all updates will be batched for when I do. Glad you like the app and thanks for helping defend our kingdom! ### 4/5 — Pretty good *2022-01-17* Very helpful to practice and stay motivated. Can be a bit buggy at times (I’ve had to restart a lesson because it got stuck at the end) I also wish the “scrolls” were available all the time. **Developer response:** Hi! The scrolls are always available but you do have to go back to your profile to see them. Any other details about this bug would be great if you could send to vince@vincekotchian.com. First we’ve heard of a bug! ## Most praised reviews (5 highest-rated) ### 5/5 — Increased my GRE score *2025-05-30* I used this app for about 4 months before my GRE in 2022. This made studying enjoyable, and my score improved significantly! **Developer response:** Sweet! Great to hear! ### 5/5 — I’m glad that this app exists .. *2022-07-31* Gem 💎 of an app to learn things different way ..it’s very rare that you are enjoying and learning at same time ..amazing **Developer response:** Thanks! Glad you’re enjoying it! ### 5/5 — Incredible GRE help *2021-08-07* The Math Knight app has really helped me solidify my core quant skills for the GRE. It is so helpful to have a fun way to do drills on all of the topics. The game is seamless and actually pretty fun! This greatly helped my GRE practicing. Thank you Vince for making this and sharing with the world! **Developer response:** Thanks! Glad it’s making learning math a bit less painful! ### 5/5 — GregMat+ represent *2021-06-09* Amazing game, good visual and sounds. Would suggest that it might be more interesting if the quests were timed, that would encourage the user to think for answers in a timed situation, similar to the real test. Thanks **Developer response:** Glad you like it! We’ll think about adding a timer for the quests… good idea. ### 5/5 — Keeps You Focused on GRE *2021-06-07* I have been studying for the GRE for a long time now - needless to say, it can be frustrating not being having adequate time for hobbies (i.e. play video games). Because of that, this game is AWESOME - not only is it engaging, but it keeps you motivated to keep studying and learn key concepts. Even though studying can seem boring sometimes, this game definitely alleviates some of that pain. The concepts and explanations for problems are spelled-out clearly - so it’s easy to understand where your strengths and weaknesses are. However, to my knowledge, there doesn’t seem to be a setting where the problems are timed - which can be a good or bad thing depending on how you want to practice. Moreover, it seems that if you have to leave a certain section during a level, you must pause or you lose your progress during that section. Nevertheless, this is a free game, it is amazing so far, and the perks definitely outweigh any cons encountered thus far. Kuddos and good luck! **Developer response:** hey Galleta - thanks for the review and the suggestions! Glad you like the game so far. --- *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 2026-08-24.*