# FitnessKit: Personal Trainer — Workout Planner & Online Coach > AI-powered personal trainer app for coaches and clients to manage training businesses. (iPhone/iPad app by Mathew Brennan.) - Source: https://appshunter.io/ios/app/fitnesskit-personal-trainer/id1445516231 (this page in markdown: same URL + `.md`) - Developer: [Mathew Brennan](https://appshunter.io/developer/1044170265) - Category: Health & Fitness, Business - Price: Free - Rating: 4.60/5 from 148 App Store ratings · 41 written reviews indexed - Age rating: 4+ - Requires: iOS 26.0 · 106 MB - Languages: American English, Latin American Spanish - Released: 2018-12-13 - Data updated: 2026-11-11 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/fitnesskit-personal-trainer/id1445516231/reviews.md ## What is FitnessKit? FitnessKit is the personal trainer app for coaches and their clients — the operating system for your training business. An on-device AI drafts every client touchpoint — check-in replies, progress reports, form cues, the next step for each person on your roster — and you approve them in one queue. That's hours back every week, and the capacity to coach more clients without working more hours. Every client you bring on gets a premium training app of their own, free. PRIVATE, ON-DEVICE AI Every draft, insight and readiness score is generated on device using Apple's Foundation Models. It works offline, and your clients' training data never leaves the phone to be processed. THE APPROVAL QUEUE • One place to sign off everything your AI drafted, instead of chasing it across a dozen screens • Drafted check-in replies you can edit inline before they send • Monthly progress reports written for each client, ready for your co-sign • Form cues pinned to the exact rep that needs them • A proposed next step for every client who needs one • Flows earn autopilot only after you've approved their drafts untouched — the AI graduates, you don't gamble • Teach it your Coach Voice so the drafts already sound like you YOUR ROSTER, AT A GLANCE • Every client in one list, filtered by who's at risk or needs attention first • Engagement and adherence per client, so nobody quietly drifts away • Per-client AI readiness from recent training, sleep and recovery • Real-time compliance charts across every active program • Technique scores trended per exercise, and training volume week over week • Body-composition trends read straight from the client's own ledger — weight down, lean mass held • A notification the moment a client finishes an assigned session, with full stats PROGRAMS BUILT ONCE, ASSIGNED IN SECONDS • Build multi-week programs with per-day workouts and progression rules • Keep templates in your library and fork a working copy per client • Assign straight into a client's schedule, or customise the start date and add a note • Already have programs elsewhere? Paste them in and the AI rebuilds them week by week AUTOMATE THE BUSYWORK • Automation flows: a trigger, then a sequence of steps that run themselves • Recurring check-ins that go out on your cadence and come back structured • Onboarding that runs itself the moment a new client connects SESSIONS THAT SCHEDULE THEMSELVES • Publish your availability and let clients book the slots that suit them • A week view of everything booked, with cancellations and no-shows tracked • Two-way calendar sync so your sessions live alongside the rest of your day WHAT YOUR CLIENTS GET • Their assigned programs and workouts, ready to train • Log every set with reps, weight, duration and RPE as they go • Set types, rest timers and live progress through every session • Home Screen widgets and a Live Activity showing the set and rest timer on the Lock Screen • 1:1 chat with you — answers, form cues and check-ins in one thread • Record a lift and get a form score with the cues that matter • A monthly progress report they can actually share A HUGE EXERCISE LIBRARY • Hundreds of exercises with video demonstrations and step-by-step instructions • Filter by muscle group, equipment and exercise type • Add custom exercises with the metadata that matters • Per-exercise progress charts to watch strength climb over time • HealthKit integration for heart rate and calories, and post workouts back to HealthKit WHO IT'S FOR Personal trainers coaching clients remotely, gyms running a floor of trainers, and anyone who wants their coaching to scale further than their calendar does. Download FitnessKit and start coaching today. We're always improving and would love your feedback: fitnesskit.com.au@gmail.com ## Key features - On-device AI for client communication drafts - Approval queue for managing client touchpoints - Client roster with engagement and adherence tracking - AI readiness scores based on training, sleep, and recovery - Program building and assignment - Automated check-ins and onboarding flows - Client booking and calendar sync ## What do users think of FitnessKit? Reviews of FitnessKit are mixed: the Health & Fitness app is rated 4.6/5 from 148 App Store ratings. What users like most: easy to use and understand, great for tracking workouts. Top complaints: bugs introduced after updates, app constantly refreshes. Summarized from real user reviews. **Pros** - 👍 Easy to use and understand - 💪 Great for tracking workouts - ✨ Allows custom workout creation - 🆓 Free with many features - 🎯 Helps organize workouts - 🚀 Efficient at the gym - 💡 Flexible for tracking progress - ✅ Simple and efficient logging - 🌟 Best fitness app - 👍 Uncluttered interface **Cons** - 🐛 Bugs introduced after updates - 🔄 App constantly refreshes - 🔋 High RAM usage - 📶 Over-reliance on network connection - ⏳ No auto workout end feature - 🗄️ Cannot access individual exercises - 🥶 Freezing on welcome screen - 📶 Only works on cell service - 🚫 Share feature doesn't work - ⏳ Rest timer non-functional - 🎛️ Odd layout and interface - 🚫 No audible tone for timer **Commonly reported bugs** - Checkboxes for marking sets complete become unchecked - Edited workout details revert to previous values - App refreshes, making supersets disappear - Timers reset when app is closed in background - Cannot edit weight used on already made routines - Cannot access individual exercises, app kicks out of edit mode - App freezes on the home/welcome screen - App won't open on WiFi, requires cell service - Rest timer is non-functional - Share feature does not work - Folders open but quickly shut down - Permission denied when deleting workouts - Keyboard obscures log in landscape mode - Some video links are broken - Timer has no audible tone when ended **Most requested features** - Fix bugs related to checkboxes - Improve saving of edited workouts - Address app refreshing issues - Optimize RAM usage - Reduce reliance on network connection - Implement auto workout end feature - Allow reps and weight adjustment on the same screen - Add more pre-made workouts - Keep screen on for rest timer - Add a pause button for rest timer - Allow scrolling to lift log above keyboard in landscape mode - Add rename function for folders - Add a quick scroll wheel for changing values - Add more specific exercises in search ## Is FitnessKit safe? FitnessKit: Personal Trainer appears safe based on user ratings. The AppsHunter Safety Score for FitnessKit is 89 out of 100. This assessment is based on 148 user ratings, with an App Store average of 4.6 out of 5. Of 148 App Store ratings, 89.2% point to a safe experience, 4.7% suggest some concerns, and 6.1% point to a risky experience. ## Is FitnessKit legit? FitnessKit: Personal Trainer appears to be a legitimate app. The AppsHunter Legitimacy Score for FitnessKit is 88 out of 100 points across 7 verification signals from App Store and developer data. ## Recent user reviews (10 of 41) All indexed reviews: https://appshunter.io/ios/app/fitnesskit-personal-trainer/id1445516231/reviews.md ### 5/5 — The Best *2026-10-24* Been using it for years now, the best app out there ### 3/5 — Issue *2026-05-23, version 3.3.0* Currently running V3.3.0. Since the update prior to this, there have been a few bugs introduced that I did not experience previously. Most of these new bugs were fixed with V3.3.0. A remaining bug relates to the check box for marking a set complete. After entering the achieved reps for a set and saving, any previously checked boxes for that exercise become unchecked. Annoying. ### 4/5 — Issue *2026-03-19, version 3.1.0* Love the app but after first adding in work outs then editing them eg changing it from 11 reps to 12 once finished and saved. Going back into the work out goes back to 11 nothing saves. Problem two, app constantly refreshes going in and out of the app and causes the workouts you set as super sets makes them nonexistent and goes to just regular workouts so you have no idea what’s a super set or a regular workout set 😅 Apart from that the app’s amazing! Please fix!! ### 5/5 — Super helpful and free! *2026-03-16* Great app, free has many work outs and allows you to add your own and track them. Honestly just what I was looking for ### 3/5 — Great for a free app but needs some fixes *2026-03-10* This app is great as a workout tracker but needs some fixes. The first issue is the ram usage. I can’t verify that the app uses too much ram but based on the behavior I have a feeling it does. Apps are normally closed by IOS in the background once it takes up too much ram. This causes timers to reset at moments. Please take a look at the apps ram usage or anything that might be causing it to crash in the background. The second is the over reliance on a network connection. This is especially hard in gyms either bad connectivity or slow wifi networks. The third issue I have is the app doesn’t have an auto workout end. For example if I forget to finish a workout, it keeps it going indefinitely. It should have an auto finish feature. The last thing is that I think the interface would be better if reps and weight could be adjusted from the same screen where you click the check mark for the workout. ### 5/5 — Nice flexible app *2026-03-01* I can add reps to any workout I have started the same or any previous day. I can do this all throughout the day without losing what I’ve already tracked. At the end of the day or any other day I can complete a workout whether I completed it or not. The goal is to complete them all, but in reality it just ain’t like that. I appreciate this flexibility. ### 5/5 — Easy to use and understand *2025-04-22, version 2.56.0* Really good app! ### 5/5 — Best Fitness App *2024-10-17* Wish I made it myself! ### 5/5 — Great app but one small problem *2024-09-03, version 2.52.0* App has worked great for a year, but recently I cannot edit the weight used on already made routines! Not sure what happened ### 3/5 — Good app *2024-08-19, version 2.52.0* App is easy to use and edit workouts however, has a few issues with not being able to access individual exercises and the app kicks you out of where you edit workouts. Currently I can not access any individual exercises. ## Frequently asked questions about FitnessKit ### What is FitnessKit's primary function? FitnessKit serves as a comprehensive platform for personal trainers to manage their business. It utilizes on-device AI to draft client communications, track progress, and automate administrative tasks, allowing trainers to focus more on coaching. ### How does FitnessKit use AI? FitnessKit employs private, on-device AI to generate drafts for client check-in replies, progress reports, form cues, and suggested next steps. This AI operates offline, ensuring client data privacy. ### What kind of information can coaches track for their clients? Coaches can view client engagement and adherence, AI readiness scores, compliance charts, technique trends per exercise, body-composition trends, and receive notifications when a client finishes a session. ### Can clients book sessions through FitnessKit? Yes, clients can book sessions by choosing from the trainer's published availability. The app also offers two-way calendar sync to integrate these sessions with the trainer's personal schedule. ### What do clients receive when using FitnessKit? Clients get access to their assigned programs and workouts, can log sets with detailed metrics, use rest timers, view live progress during sessions, and communicate with their trainer via a 1:1 chat. ### Is FitnessKit available on all devices? FitnessKit is supported on iPhone and iPad devices, catering to users within the Apple ecosystem. ### How often is FitnessKit updated? The latest version of FitnessKit is 4.8.0, and it was last updated on November 11, 2026. Updates aim to improve functionality and address any reported issues. ### What is the user sentiment for FitnessKit? User reviews for FitnessKit are mixed. While users praise its ease of use, workout tracking capabilities, and custom workout creation, some have reported bugs after updates and issues with app refreshing. ## Version history (last 5 releases) ### 4.8.0 — 2026-11-11 • New: the Approval Queue — every AI-drafted check-in reply, progress report and form cue in one place to sign off • New: automation flows that run a sequence of steps from a trigger, plus recurring check-ins on your cadence • New: session booking — publish your availability, let clients book, and sync it to your calendar • New: monthly AI progress reports for each client, ready for your co-sign • New: record a lift and get a form score with cues pinned to the rep that needs them • New: paste in programs you built elsewhere and have them rebuilt week by week • Autopilot now has to be earned — a flow only runs itself after you've approved its drafts untouched • The trainer's shell is now a coaching console: Today, Clients, Business and Studio • Fixed stale client data on the first session after signing in We're always looking for ways to improve your coaching and would love your feedback! fitnesskit.com.au@gmail.com ### 4.7.0 — 2026-09-03 • New: the Approval Queue — every AI-drafted check-in reply, progress report and form cue in one place to sign off • New: automation flows that run a sequence of steps from a trigger, plus recurring check-ins on your cadence • New: session booking — publish your availability, let clients book, and sync it to your calendar • New: monthly AI progress reports for each client, ready for your co-sign • New: record a lift and get a form score with cues pinned to the rep that needs them • New: paste in programs you built elsewhere and have them rebuilt week by week • Autopilot now has to be earned — a flow only runs itself after you've approved its drafts untouched • The trainer's shell is now a coaching console: Today, Clients, Business and Studio • Fixed stale client data on the first session after signing in We're always looking for ways to improve your coaching and would love your feedback! fitnesskit.com.au@gmail.com ### 4.6.0 — 2026-08-26 • New: the Approval Queue — every AI-drafted check-in reply, progress report and form cue in one place to sign off • New: automation flows that run a sequence of steps from a trigger, plus recurring check-ins on your cadence • New: session booking — publish your availability, let clients book, and sync it to your calendar • New: monthly AI progress reports for each client, ready for your co-sign • New: record a lift and get a form score with cues pinned to the rep that needs them • New: paste in programs you built elsewhere and have them rebuilt week by week • Autopilot now has to be earned — a flow only runs itself after you've approved its drafts untouched • The trainer's shell is now a coaching console: Today, Clients, Business and Studio • Fixed stale client data on the first session after signing in We're always looking for ways to improve your coaching and would love your feedback! fitnesskit.com.au@gmail.com ### 4.5.0 — 2026-08-23 • New: the Approval Queue — every AI-drafted check-in reply, progress report and form cue in one place to sign off • New: automation flows that run a sequence of steps from a trigger, plus recurring check-ins on your cadence • New: session booking — publish your availability, let clients book, and sync it to your calendar • New: monthly AI progress reports for each client, ready for your co-sign • New: record a lift and get a form score with cues pinned to the rep that needs them • New: paste in programs you built elsewhere and have them rebuilt week by week • Autopilot now has to be earned — a flow only runs itself after you've approved its drafts untouched • The trainer's shell is now a coaching console: Today, Clients, Business and Studio • Fixed stale client data on the first session after signing in We're always looking for ways to improve your coaching and would love your feedback! fitnesskit.com.au@gmail.com ### 4.4.0 — 2026-08-17 • New: the Approval Queue — every AI-drafted check-in reply, progress report and form cue in one place to sign off • New: automation flows that run a sequence of steps from a trigger, plus recurring check-ins on your cadence • New: session booking — publish your availability, let clients book, and sync it to your calendar • New: monthly AI progress reports for each client, ready for your co-sign • New: record a lift and get a form score with cues pinned to the rep that needs them • New: paste in programs you built elsewhere and have them rebuilt week by week • Autopilot now has to be earned — a flow only runs itself after you've approved its drafts untouched • The trainer's shell is now a coaching console: Today, Clients, Business and Studio • Fixed stale client data on the first session after signing in We're always looking for ways to improve your coaching and would love your feedback! fitnesskit.com.au@gmail.com ## Apps similar to FitnessKit | App | Rating | Price | Category | | --- | --- | --- | --- | | [Basic Gym](https://appshunter.io/ios/app/basic-gym/id825569454) | 4.6 (107) | Free | Health & Fitness | | [Gym Diary: Workout Tracker Log](https://appshunter.io/ios/app/gym-diary-workout-tracker-log/id1328908841) | 4.3 (125) | Free | Health & Fitness | | [Gym Log+ — Workout Tracker](https://appshunter.io/ios/app/gym-log-plus-workout-tracker/id871239624) | 4.5 (700) | Free | Health & Fitness | | [Simple Workout Log - Ironotes](https://appshunter.io/ios/app/simple-workout-log-ironotes/id1550970850) | 4.8 (376) | Free | Health & Fitness | | [Set & Rep Counter Workout Log](https://appshunter.io/ios/app/set-and-rep-counter-workout-log/id1603759610) | 4.7 (189) | Free | Health & Fitness | | [Gains Workout Tracker Gym Log](https://appshunter.io/ios/app/gains-workout-tracker-gym-log/id1019332088) | 4.8 (203) | Free | Health & Fitness | ## Related topics [mathew brennan](https://appshunter.io/ios/topics/mathew-brennan) · [rpt formlab](https://appshunter.io/ios/topics/rpt-formlab) · [1fit client](https://appshunter.io/ios/topics/1fit-client) --- *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 2026-11-11.*