# Card.io - Running App — user reviews > 71 indexed App Store user reviews of Card.io by Cardiiio LLC, rated 4.61/5 from 350 ratings. - Source: https://appshunter.io/ios/app/cardio-running-app/id1628005395/reviews - App overview in markdown: https://appshunter.io/ios/app/cardio-running-app/id1628005395.md - Rating breakdown: 5★ 290 · 4★ 25 · 3★ 10 · 2★ 7 · 1★ 18 ## What do users think of Card.io? Overall sentiment: mixed **Pros** - 🚀 Great motivational tool - 🎮 Gamifies exercise - 👍 Fun way to explore the city - 💡 Innovative concept **Cons** - 🐛 Frequent crashes and bugs - 🔌 Unreliable data persistence - 🤔 Confusing onboarding and UI - 🚫 Limited availability in some areas - 💰 Aggressive monetization with ads and subscriptions **Commonly reported bugs** - Inability to claim earned coins - Inconsistent tracking of activities - Crashes when trying to update profile - Apple Watch app not functioning properly **Most requested features** - Ability to change display name and password - Better integration with fitness trackers - Offline mode or local data storage - More customization options for teams and groups ## Newest reviews (13 of 71) ### 3/5 — Paying customer- things not work *2025-11-23* Frustrated the app has not worked correctly for several weeks! It was fine and then not allowing me to use freezes, not connecting in locations- I’m sure it will get better! ### 2/5 — Didn’t know driving was a form of cardio *2025-06-03, version 1.6.7* How can one claim blocks while driving? Defeats the whole purpose of the app, makes me not even want to use it ### 3/5 — Ads added in v 1.6.6 *2025-04-28, version 1.6.6* As if if weren’t buggy enough, with crashes and troubles, Card.io added ads in version 1.6.6. Great. ### 2/5 — Cannot onboard *2025-03-18, version 1.6.1* “Start free trial” button not working. Had to click “next” multiple times after filling out a field. ### 4/5 — Dank *2025-02-20, version 1.5.5* Sometime glitch when driving. For free DANK ### 3/5 — App keeps crashing after 12/3/24 update *2024-12-05, version 1.4.9* I wanted to start by saying I have really enjoyed this app. I’ve been using it for about 3 days and it is extremely encouraging and motivating to capture blocks from other people and to claim your territory. Up until today, I would have rated it 5 stars despite the bugs people keep mentioning. I noticed after the update on 12/3/24, the app keeps crashing. When trying to log a walk, it asks me to update my profile which I have done already when first installing the app. Once I enter in the appropriate responses and click “save”, the app completely crashes. I’ve tried closing the app and restarting and it does the same thing. I have also tried entering in the profile information from the settings but once I tap “save”, it reverts the information as if I have not entered anything. The makes the app not usable at all, as I can’t log walks until my profile is updated and the app is not letting me save the information I put in my profile. I’ve also lost all my coins since the update, so I would advise people against buying coins until this bug fix is solved. I want to keep enjoying the app and I LOVE the concept, however there is not much software development and needs a bunch of fixes before it is functional. There is also no way to submit bug fixes easily so it is hard to find out how to contact a support team. Otherwise, I hope to see it fixed soon so I can continue using the app. Edit 12/4/24: the bug that seems to take away my coins and not let me update my profile seems to be MOSTLY gone. I have my coins back, but because I wasn’t able to log my run it says I skipped a day, even when I had my Strava connected. I had to use a freeze to keep the streak even though I ran. I also found that for the most part, I’m able to update my profile, except for my gender. It keeps defaulting to male no matter which selection I choose. I raised it from 1/5 stars to 3/5 stars only because the bugs are still annoying to work around. I find that just connecting my Strava account does better than relying on hoping the tracker works on Card.io For the most part, I still am enjoying the app, I just have to use Strava to have a reliable tracking record. I hope to subscribe to Card.io once it’s more developed and reliable. ### 4/5 — First run with app *2024-11-09, version 1.4.8* Love the concept of using competition and gaining territory as motivation. However, I think the app could still use some updating. ### 4/5 — Pop up Subcriptions *2024-10-29* Love this app so much. But the pop up subscription page is absolutely annoying and ridiculous. Please remove it. Not everyone can afford to pay monthly. ### 2/5 — Struggling to log route *2024-10-24, version 1.4.6* I like the app and the game and on day 1 I was able to log my route and claim territory but on day two there was no where to start my workout and I couldn’t find instruction online of how to start tracking the workout. ### 3/5 — Great Concept, To Many Bugs *2024-10-22* Love the concept of this app but there's a ton of bugs that need to get worked out. As a runner who has used Strava for 3-4 years it's refreshing to try a new app. It’s definitely a great motivational concept that incorporates a sense of fun and definitely makes running more enjoyable. My main issue is just the bugs with uploads not working properly through the apple watch app and the dashboard being a pain to access on the app. ### 4/5 — Can’t change my team *2024-10-22* I made my own team when i got to level two, and it keeps changing me back to the original team I was on so I can’t make I team with my friends:( ### 2/5 — Want to support as much as I can! Love the idea! *2024-10-21* My runs are not being captured, nor are they syncing with Strava. Getting a message that they are “above speed limit.” I have been using the Apple Watch app, rather than using my phone. That may have something to do with it, but I’d love to just be able to leave my phone behind and run with only my watch. I love the idea and want to support as much as I can! I live in Austin and have used the Nike Run Club app for so long, but would love to play a role in getting a startup off the ground. 🏃🏻‍♂️ **Developer response:** Hi! Thank you for review. Can you share your email with us. We will check and try to fix the problem. Email to destin@downloadcard.io ### 1/5 — App crashes every time I select a team *2024-10-19, version 1.4.5* I thought this was an interesting concept but it crashes in the setup process. ## Most critical reviews (10 lowest-rated) ### 1/5 — Paying customer- things not working - still *2025-11-30* Frustrated the app has not worked correctly for several months! It was fine and then not allowing me to use freezes, not connecting in locations. Can not get coins for activities, “offline” error message. No app support ### 1/5 — Too many cheaters. Not worth trying *2025-06-25* You level up and power up by walking. You can buy temporary power ups with in game currency, which you earn ONLY by playing the game. No premium currency. It was fun, but im giving the app a 1 because of cheaters. I watched a dude take over half of a major metropolitan area with a mile average time of 4 mins and some seconds. He was obviously in a car. Also, if the game doesnt have in-game purchasing, it makes you wonder how they make money. Selling data? Really makes you think. ### 1/5 — Terribly Disappointed with the app! *2025-06-16* I downloaded the app a few weeks back after watching it on Shark Tank, even recommended it to friends. The app is so buggy though, doesn’t let you even locate yourself after zooming in somewhere on the map. I uninstalled the app today, I covered 76 blocks today and at the end, the app just crashed and my progress wasn’t even recorded. I am just done!! ### 1/5 — Apple Watch doesn’t work. *2025-02-24, version 1.5.5* Apple Watch with cellular app doesn’t work. ### 1/5 — Terrible app *2024-12-22, version 1.5.0* This app crashes constantly in the middle of a run and nothing is recorded. Horrible user experience. Asked for my money back and CRICKETS. NO response. . ### 1/5 — New Popover ads are atrocious *2024-12-10, version 1.4.9* "Pay to remove ads" it says, but that popover is the worst ad of all. ### 1/5 — Not worth downloading *2024-11-24, version 1.4.8* Really buggy and I have issues with t he whole premise. There’s no real fitness tracking and it feels like no effort was put into making the game. For an actual runner there’s no point in downloading this and for new runners, it’s so complicated that I wouldn’t recommend it anyway. Not worth your time. ### 1/5 — Too many bugs *2024-11-09* I want to love this app, I really do. I love the idea of a turf war throughout my city. It makes me want to explore more. I thought maybe since they got a deal on Shark Tank that the bugs would be worked out. Not only are the bugs not worked out (app will not pull from my Garmin as advertised), now they want me to pay for this? Absolutely not. PLEASE fix the issues that are constantly happening!! ### 1/5 — Not for people wanting a fun way to start exercising. Only for people who are already runners. *2024-11-02, version 1.4.7* Thought I would try it to help get me in shape. Tells me I don’t exercise enough to record anything. Thanks for all the support. ### 1/5 — Bug/ Issue Apple Watch *2024-10-25, version 1.4.6* My stats didn’t transfer correctly from my Apple watch to my IPhone. The duration/time didn’t transfer therefore after capturing blocks on my watch it didn’t count in my profile. ## Most praised reviews (10 highest-rated) ### 5/5 — Best Movement App on the Market *2025-09-02, version 1.6.8* Title says it all. Card.io has it all. Download it, you won’t be sad taking territory from your neighbors. I’m coming for you Rochelle. ### 5/5 — Amazing app! *2025-07-11, version 1.6.8* Makes running fun:) ### 5/5 — Great app *2025-05-01, version 1.6.6* I saw this on shark tank and I downloaded it. It’s so fun. It makes hard runs more enjoyable ### 5/5 — awesome app *2025-02-16, version 1.5.5* so im a soccer player and i go running to keep me in shape for it and i absolutely dread it…but this app actually keeps me motivated to keep running. i watched shark tank one day and ik i needed this app…thanks for this awesome app!! ### 5/5 — Like a game! *2024-10-30, version 1.4.7* This is amazing, quite competitive and gets you a bit more motivated to run. ### 5/5 — Own your city *2024-10-22* I just heard about this app a few days ago but I already enjoy it immensely. I get to enjoy my runs and take over previously “unknown blocks” on my running route! My only issue that I’ve found so far is that it often doesn’t count mileage run at a quick pace. It assumes one is driving around even if you are actively exercising. ### 5/5 — 5 star *2024-10-19, version 1.4.5* I wouldn’t be running without this!! Thank you ### 5/5 — Great running app *2024-10-19, version 1.4.5* Saw this on shark tank downloaded it and motivated me to run and it’s fun with friends ### 5/5 — Amazing motivating app *2024-10-04, version 1.4.3* This app helped me reach my summer running goals by competing with people I didn’t even know. As someone with a competitive edge, Card.io gave me the motivation I needed by turning my runs into a fun competition. ### 5/5 — Super Fun *2024-08-01* Nice way to gamify the fitness attempts. Had an alert from the app cancel my music out. Not a biggie but would be great to know how to bypass the music pause. --- *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 2026-06-10.*