# Strength by Mari — user reviews > 217 indexed App Store user reviews of Strength by Mari by Mari Fitness LLC, rated 4.50/5 from 6,286 ratings. - Source: https://appshunter.io/ios/app/strength-by-mari/id1524686854/reviews - App overview in markdown: https://appshunter.io/ios/app/strength-by-mari/id1524686854.md - Rating breakdown: 5★ 5,006 · 4★ 546 · 3★ 247 · 2★ 153 · 1★ 334 ## What do users think of Strength by Mari? Overall sentiment: neutral **Pros** - 🚀 Easy to follow workouts - 👍 Simple and intuitive interface - 💪 Effective for building strength - 📊 Ability to track progress and weights **Cons** - 🐛 Frequent app crashes and glitches - 🔍 Difficulty finding and switching exercises - 🕰️ Lack of rest timers and workout planning features - 🖼️ Issues with saving and viewing progress photos **Commonly reported bugs** - App crashes during workouts - Progress data and workout history not saving properly - Inconsistent performance and UI issues - Trouble logging in and accessing the app **Most requested features** - Allow customization of workouts and ability to add exercises - Incorporate warm-up and cool-down routines - Provide more advanced and challenging workout options - Improve navigation and ability to preview future workouts ## Newest reviews (19 of 217) ### 2/5 — Restoring subscription doesn’t work *2026-07-19, version 2.0.17* I used to have the app and loved it but had to turn of my subscription for some time. I came back to restore today and it won’t work. ### 3/5 — Unable to renew subscription *2026-07-17, version 2.0.17* Having difficulty restoring my subscription ### 2/5 — Good app *2026-06-23, version 2.0.17* I do like the app and have been using it over 2 years. The main 2 issues are that it is entirely too glitchy. Easily, once a week, the app will reset in the middle of a workout. That’s annoying. I use it the same each time but this just randomly happens and I have to enter the info again. It normally happens when I’m doing cardio. I also wish there were more updated/additional workouts. If you are a long term user, it gets repetitive which creates the need for a new app after a while. Update 6/23/2026: now I cannot sign into the app at all. I’m ready for my workout and can’t get into the app. I paid the fee last week. I need to look for a new app because it seems that they do no updating or upkeep for this app and that’s getting quite annoying. ### 3/5 — Super Glitchy *2026-06-16, version 2.0.17* The workouts are great but the app is so glitchy sometimes you can’t even use it. Not sure it’s worth the money. ### 3/5 — Needs new content *2026-03-01, version 2.0.17* I used to be a die hard Mari fan, I’ve had the app since it was created, it has a lot of flaws and it really could use some new content and updates. It’s been the same workouts since the beginning it definitely could use some new stuff for the people that have been using it ### 2/5 — No way to change guides *2025-11-17, version 2.0.17* Tried to change my guide but none of them load, which means I’m stuck working on the same one. Cancelling my subscription despite really enjoying the workouts. ### 3/5 — Good app *2025-10-29, version 2.0.17* I do like the app and have been using it over 2 years. The main 2 issues are that it is entirely too glitchy. Easily, once a week, the app will reset in the middle of a workout. That’s annoying. I use it the same each time but this just randomly happens and I have to enter the info again. It normally happens when I’m doing cardio. I also wish there were more updated/additional workouts. If you are a long term user, it gets repetitive which creates the need for a new app after a while. ### 3/5 — Updates Any Time Soon? *2025-05-27, version 2.0.17* We pay a membership fee to use the app but there’s been no updates in some time and the app is constantly glitching. You can’t add any progress pictures or update your post workout responses to include your own mental progress as well. It’s a bit frustrating. ### 2/5 — It’s just okay. *2025-04-19, version 2.0.17* It’s better than nothing. But the app is full of glitches and half-thought through modes and features. I track how heavy I lift but you can’t really see a graph of improvement. The full body workouts say 45 minutes but they take 20…and sometimes the timer stops working so you aren’t sure how long you actually worked out for. I hope the team revamps this app. It has potential ### 2/5 — Disappointed after 3 years. *2025-03-21, version 2.0.17* Started using the paper guides and was so excited for an app version. Ever since Mari started her podcast, less and less time has been devoted to these workout plans which is disappointing. I fell in love with this community through the Facebook pages progress pics on instagram and everyone sharing their own stories. Unfortunately I don’t see anything of this anymore as she’s too focused on her podcast :/ I lost about 45 pounds following her guides, I stuck with it for 3 years and love my progress! Good workout but app always glitches ### 3/5 — Great workout but app Crashes Frequently *2024-11-14, version 2.0.17* I have been using this app for 7 months now. I would rate it 5 stars because the workouts are great. I have seen results and feel so much stronger. That being said, I’m the app crashes frequently. I used it today and it constantly closed out without saving my progress. This happens almost every week. It makes my workouts longer because I’m trying to get the app to start up. ### 3/5 — Glitchy! *2024-11-12, version 2.0.17* The programming is great. However the app is super glitchy. The rest timers rarely work, the reps and weight fluctuate depending on if you’ve selected it or not, it randomly closes, and there is no way to reopen a workout in case you accidentally “finished” the workout. Please make more reliable and user friendly! ### 2/5 — App Needs to update *2024-11-06, version 2.0.17* I have not been able to start my guide after I selected them. Sometimes the button “Start my guide” appears sometimes disappears. I suggest doing UX testing because it really needs to update. I had to uninstall in the past because of this problem. ### 1/5 — ZERO stars. Mari and her team - SCAM *2024-10-23, version 2.0.17* Her marketing is different from product. Initially signed up while there are 2 other trainers whom I actually selected over her. (Gross she uses their likeness still in these images) says a lot. Anywho provided options for plans and then continued to charge you despite not agreeing to purchasing a certain amount of week program. They steal your CC info basically. Also don’t buy BLOOM. It tastes disgusting and it doesn’t work. Mari is good at marketing but she is a total fraud. Don’t waste your money. Try KAYLA ITSINES. ### 4/5 — Love this app *2024-07-23, version 2.0.17* I’m so happy I downloaded it! I’ve done some of the guides in the past and I absolutely love her style! Downloading the app made me feel like I was coming back home! It also just feels so real, unlike other apps that make everything seem robotic and like we’re not actual human beings. The only thing I would love this app to have is a little bit more work on the nutrition side. I wish I could put my weight and height and it could calculate how much I should be eating. I’ve seen some other fitness apps include it and it has been a game changer. I just love training with Mari so much I’m willing to not let this be an issue but would love if it was a possibility in the future. Other than that, super great app!!! Again so happy I downloaded ### 3/5 — Not a smooth workout *2024-06-19, version 2.0.17* It’s a okay app that works as intended but when doing gym workouts, it’s not smooth. They expect you to move between machines for a set which isn’t feasible in a large busy gym. Also requires you to record weight with no benefit for next round. Not worth the money. ### 1/5 — No trials or refunds *2024-06-17, version 2.0.17* I don’t like to do a bad review but I got very frustrated that the app doesn’t offer a trial and don’t refund if I don’t like it. i really like Mari and her podcast and I was looking forward ti try it out but thought the advanced workout was very easy and short + not well direction. I wiah they could offer a one week trial ### 2/5 — Good, but not the best option *2024-05-03, version 2.0.17* The UI is lovely, it’s clean, and not overwhelming with too many unnecessary buttons and features like many apps out there. It is very glitchy though. It’s way to easy to accidentally click out of the workout and all of the progress/reps/weights I entered were scrapped and I had to redo everything. Very frustrating. It also crashed all the time, to the point where it was intolerable in the end, and I had to switch apps. I also found some of the workouts unclear in the direction. For example, I never knew how many reps I should do total, or for each arm or leg? Other little things like that which made me feel nervous I was doing it wrong. I’ve also reached out to SLAY for help but never got a response. ### 2/5 — Not user friendly - confusing and poorly designed *2024-04-22, version 2.0.17* I am a HUGE Mari fan. I used her PDF guides way back before Slay ever existed, which is why I am so disappointed with this app. 1. The Pilates section does not have instructions; it’s a 10-minute video, and you don’t have info on reps or anything. This is very confusing. 2. There’s no way to follow an at-home guide; only workouts that you can pick at random. 3. The app tries too hard to be everything. It needs to double down on guides and workouts, not all the fluff that directs us to her other businesses. ## Most critical reviews (10 lowest-rated) ### 1/5 — App always down, glitchy, etc. *2026-07-28, version 2.0.17* It’s honestly so disheartening that her entire brand actually started with this app and now it’s neglected. No update in 2 years, constant log in problems, and it doesn’t get fixed because nobody’s checking for it. ### 1/5 — App has stopped working *2026-07-17, version 2.0.17* App has stopped working for several weeks with no place to seek help and won’t let me know whether or not I have a subscription. Wouldn’t recommend. ### 1/5 — App stopped working *2026-07-03, version 2.0.17* The app stopped working for me on June 24. My subscription was paid and now I have no access to the app. I used it the day before for a workout and now I get a screen that says ‘restore subscription’. It’s a shame that Mari abandoned this app but still is charging customers for use. ### 1/5 — App just stopped working *2026-06-27, version 2.0.17* App just stopped working ### 1/5 — Not able to log in *2025-09-05, version 2.0.17* Not able to log in, and there’s no tech support available to resolve the issue ### 1/5 — No changes *2025-08-22, version 2.0.17* I just subscribed again in hopes there would be updates to the lack of functions but unfortunately, there aren’t. It’s almost impossible to back out of a workout. It crashes. I went try a new workout and it eliminated all the progress from my current one. I’m cancelling. She has fantastic workouts but the app is infuriating. ### 1/5 — Glitchy *2025-08-19, version 2.0.17* Love the workouts, app is subpar at best. I have been using this for 3+ years and there has been no improvement in the quality. The timers almost never work. ### 1/5 — Poor app performance *2025-06-17, version 2.0.17* Update: I switched to Ladders and absolutely love it- highly recommend instead of this app. Constantly crashes, the timer doesn’t work. When I reached out to their team they said it must be my phone and made zero effort to help fix the bugs. I upgraded my software and phone since and the bugs still persist. It’s clear this isn’t a priority for Mari and her team. ### 1/5 — Poor app performance *2025-05-12, version 2.0.17* Constantly crashes, the timer doesn’t work. When I reached out to their team they said it must be my phone and made zero effort to help fix the bugs. It’s clear this isn’t a priority for Mari and her team. ### 1/5 — SCAM *2025-01-13, version 2.0.17* God forbid you try to cancel or get your money back. I had canceled through the App Store but they still charged me for the renewal. When I emailed them the moment the renewal went through they didn’t give me a refund and cancel because I was meant to cancel through them instead. Then why was it an option to cancel through the App Store? And why not just give me my money back and cancel for the year? This app is terrible and the customer service people behind it are no help. ## Most praised reviews (10 highest-rated) ### 5/5 — Hola! *2026-06-27, version 2.0.17* No está funcionando la aplicación! Es Buenisima. Pero en este momento no está cargando los ejercicios! Necesito ayuda! ### 5/5 — I love this app *2023-04-25, version 2.0.8* I truly love this app. It makes building muscle totally doable for me, from home!! I actually enjoy the workouts and look forward to doing them. (It’s not pure torture like other programs.) That’s how you build sustainability. They are continually improving the app. It’s also very reasonably priced. Thank you Mari & team!! ❤️ ### 5/5 — I’m loving this app !!! *2023-02-16* I’m loving the slayapp so much ! I am currently in my final week of the Burn program at home and I’m amazed at the results I’m getting (on top of eating clean of course) with only dumbbells and a band ! Highly recommend and I can wait to start the other programs ❤️ ### 5/5 — Long time slay app user *2023-01-05* Previous version of the slay app (pre-2023) worked fine for me. Professionally, I am a software testing leader for apps in the healthcare industry. Sure the slay app crashed at times, and was sometimes a bit wonky- but I was still able to utilize, get my workouts in, track my sets, etc. It did the job, and helped me push my fitness capabilities. I enjoyed the simple format and ease of use. The new app update (2023) is fantastic. Still has all the workouts I know and love in a very similar, but upgraded format. The look and feel is more chic and more mature (less Barbie pink). The tracking is great and works well, took me just a couple minutes to navigate the new format, but it’s just as easy to use, if not easier than previous version. I haven’t dug into the new workout content, as I’m currently active in a program. But everything looks great and works great. With the help of Mari’s program, I’ve lost 33 lbs and counting since I started using this App. ### 5/5 — So easy to follow! *2022-09-27, version 1.8.16* Love how easy it is to follow the guide. Clear instructions with every move, the videos are really helpful. Great for keeping track of weights too. ### 5/5 — Easy, quick and getting results *2022-08-17, version 1.8.16* If you’re anything like me I hate long workouts and I like the privacy of my own home. This is working really well for me, I allow 30-40 min and feel great for it. Exercises are well explained and it’s very easy to follow. Only thing missing is an optional stretch each day. ### 5/5 — Get this app ASAP *2022-05-19* I’ve tried many apps in the past and Mari just gets it. I love that there is a demonstration of the exercise that you will be doing, the amount of rep or time and rest time is included as well. You can even add as many picture as you want to track your progress. The app is pretty user friendly and oh you even have the option to put the amount of weight that you did ( whether it’s body or weights). ### 5/5 — I love u *2022-05-11, version 1.8.4* My favourite thing about this app is that it doesn’t track the days, just your physical progress which is such a healthy perspective as it helps you to choose to work out because you want to feel good ### 5/5 — Loving it *2022-04-07, version 1.8.2* I’ve followed Mari before she developed this app. She’s total goals! Keeping up is always hard but so worth it ### 5/5 — The best thing since sliced bread *2022-02-18, version 1.8.1* I have been using Maris guides since they first came out! This app is a GAME CHANGER! It’s so seamless and easy to use! You can switch out exercises if you need! The videos are soooo helpful! I would 100/10 recommended this app to anyone who is starting out or looking to change up their fitness and wellness journey 💚💚💚💚 --- *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 2026-08-29.*