# 10K Trainer by C25K® — user reviews > 413 indexed App Store user reviews of 10K Trainer by C25K® by Zen Labs, rated 4.80/5 from 21,551 ratings. - Source: https://appshunter.io/ios/app/10k-trainer-by-c25k/id511600311/reviews - App overview in markdown: https://appshunter.io/ios/app/10k-trainer-by-c25k/id511600311.md - Rating breakdown: 5★ 18,704 · 4★ 1,935 · 3★ 430 · 2★ 127 · 1★ 355 ## What do users think of 10K Trainer by C25K®? Overall sentiment: positive **Pros** - 🚀 Gradual increase in running challenges - 👍 Motivating and easy to follow - 👍 Helpful for beginners and returning runners - 👍 Allows listening to own music - 👍 Provides voice prompts for guidance **Cons** - 🐛 Inconsistent tracking of distance and calories - 🐛 Occasional app crashes or freezes - 🔋 Drains battery when running with phone - 👎 Requires subscription for advanced features **Commonly reported bugs** - Timers not syncing accurately with other devices - Workout data sometimes not recorded properly **Most requested features** - Apple Watch integration for standalone use - More advanced training options beyond just 10K - Ability to customize audio prompts and volume ## Newest reviews (16 of 413) ### 4/5 — ALD *2026-08-10, version 7.3.31* 4 stars ### 5/5 — Yesssssssss sirrrrrr *2026-06-30, version 7.3.31* Get to it & RUN!!!!!!!!!!!! ### 5/5 — Great app *2026-06-01, version 7.3.29* Great running app, one off purchase for the whole set - really great value for money … be nice to have a ‘beep’ to let you know half way mark for each segment but does not detract from how good app is! ### 5/5 — Accountability buddy *2026-05-16, version 7.3.29* Exactly that!!! ### 5/5 — Love it *2026-05-15, version 7.3.29* So easy to use and a great encourager ### 5/5 — Thank you! *2026-05-03, version 7.3.29* This app has changed my life. I never thought I would be a runner. And here I am about to start the half marathon training. I highly recommend couch to 5k to anyone looking to start their health journey! ### 5/5 — Works *2026-04-20, version 7.3.29* Just following. Repeat days or weeks if need to. It works. ### 5/5 — Best Running App I’ve Ever Used! *2026-04-10, version 7.3.29* Best Running App I’ve Ever Used! The Couch to 5K and 10K have made what felt impossible possible! ### 5/5 — Love this app *2026-03-23, version 7.3.28* I am restarting this program in my late 20s because I had great success when I was in high school. I love the progression and the updates to the alert sounds have been great ### 5/5 — Great App *2026-03-03, version 7.3.28* Got me there! ### 5/5 — Great app *2026-02-01, version 7.3.27* Easy to use and integrates seamlessly with other apps ### 5/5 — Great app *2026-01-26, version 7.3.27* Practical, easy to follow, and free. What’s not to love? ### 5/5 — Yesssssssss sirrrrrr *2026-01-25, version 7.3.27* Get to it & RUN!!!!!!!!!!!! ### 5/5 — Great App *2026-01-12, version 7.3.27* I’m pretty lazy and hate running and did a 10k thanks to this app. Definitely give it a try! ### 5/5 — Great app *2026-01-10, version 7.3.27* This is a great app second time using it to get back into running the prompts and the features with mapping your run ### 5/5 — Living a Better Life *2025-12-28, version 7.3.27* Back in July of 2024, I was pushing 270lbs. I was diagnosed with type 2 diabetes and I started sleeping with a CPAP machine. Then one day, I looked myself in the mirror and said enough is enough. I started with C25K and used that several times before switching to 10K Trainer. It mirrors the C25K app, but there is more features to enjoy in the 10K. Today, I am 193 lbs and still loosing weight. My blood work doesn’t even show me as pre-diabetic anymore, and I no longer sleep with a CPAP machine. For me, it was about ownership over my own health and taking responsibility over the things I can control. I love and respect myself more each and every day because of the decisions I have made. Thank you to C25K/10K family and beyond. What’s your story?!? ## Most critical reviews (10 lowest-rated) ### 1/5 — Requires payment *2026-07-17, version 7.3.31* Boooo. I used C25K to train for my first 5K and loved it. I just downloaded C210K and realized it requires payment to use more than the first 3 runs. Deleting it now. ### 1/5 — Miserable Customer Service *2026-07-12, version 7.3.31* I’ve been trying to get an issue fixed for over a month, but customer service keeps giving me the runaround. All I want to be able to do is correct my distances when I run on a treadmill, but the app only accepts commas for decimals, and a United States keyboard only offers digits and the decimal point. The reps don’t even bother reading my actual complaint, and instead seem to be trying to follow a script that was never intended to be used for my issue. I’m starting to think the rep who emails me is actually a chatbot, and not a human being. ### 1/5 — Only 4 training days for free *2026-05-10, version 7.3.29* There is no longer any training days in the app past week 2 day 1. Support will not reply to my inquiry. ### 1/5 — Paywall to finish? *2026-02-19, version 7.3.27* This is probably a great program, but I don’t want to have to pay to continue to the program. Will be downloading an app that doesn’t have a paywall after the first week. ### 1/5 — Paid for 10K Pro *2025-10-08, version 7.3.22* Paid for 10K Pro when it wasn’t a subscription model. Haven’t used it for a while, now I’m back to it and used it once. It keeps crashing which I can only assume is to force me to use the subscription model. I’ve moved to another app that has a lifetime subscription. ### 1/5 — Used to be good. What happened? *2025-09-05, version 7.3.22* Bought the app a while back. Suddenly it started crashing. Uninstalled it and reinstalled it, and now it won’t let me use what I ALREADY PAID FOR and could use before without a subscription. ### 1/5 — Too many pop ups *2025-08-11, version 7.3.22* Too many screens to click through to get to the actual training. ### 1/5 — No longer free! *2025-07-16, version 7.3.22* I've used this and c25k on and off for years and realize it's no longer free past week 2 day 1! Didn't even realize it after I already started again. ### 1/5 — No Longer Free *2025-06-06, version 7.3.20* Came back to this app after a while away, suddenly it’s a subscription model and no longer free. The developer will respond below stating something like “this is what’s best for our users.” It’s not. Do yourself a favor and don’t even start this app, just uninstall right away! ### 1/5 — Thought it was a free app *2025-04-16, version 7.3.20* I used the app believing it was a free app—it cut me off after two weeks and requires a paid subscription now. ## Most praised reviews (10 highest-rated) ### 5/5 — Awesome! *2026-09-07, version 7.3.32* This app rocks ### 5/5 — They are great *2026-08-25, version 7.3.31* Really enjoy the app! Been using it for years to stay on track. I like that the gps is pretty accurate and helps me know how far I’m running ### 5/5 — Easy to use. Takes the thought out of planning *2026-08-21, version 7.3.31* Great app. Allows for music to still play. Good run walk run method. ### 5/5 — 10K trainer *2026-08-03, version 7.3.31* Easy way to build up to running! ### 5/5 — Amazing *2026-07-25, version 7.3.31* It feels like you have 24/7 Personal trainer ### 5/5 — The best way *2026-07-24, version 7.3.31* The best way ### 5/5 — Awesome! *2026-07-14, version 7.3.31* Great for beginners! ### 5/5 — Free version is great *2026-07-03, version 7.3.31* The free version is great for those on a budget. It does what it says in the tin and keeps you motivated ### 5/5 — Awesome *2026-07-02, version 7.3.31* But with Jasem ### 5/5 — Great App *2026-07-01, version 7.3.31* Great at getting you started slowly and building stamina to go go go. --- *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 2026-09-11.*