Kai Running vs PaceGrid
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kai Running
Transform your running into an anime adventure. This app creates personalized training plans for your race goals, turning each workout into a challenge with a virtual rival and rewarding your progress with stat increases and visual evolution.
- Personalized training plans for race goals
- Gamified workout challenges with virtual rival
- Stat progression based on real performance
- Visual evolution of in-app character
- Manhwa-style chapter summaries of runs
- GPS and treadmill support
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Run from E-rank to S-rank. Kai Running turns your running training into a manhwa you live. The System chooses you as an E-rank runner and gives you a real training plan for your goal: 5K, 10K, half marathon, marathon or your own race. Every run is a Gate to clear. A REAL PLAN TO RACE DAY Tell the System your goal, your level and your race date. It builds a complete plan, week by week, and adapts it when you miss a run. EVERY RUN IS A GATE Easy runs are Recon Gates, intervals are Combat Gates, tempo runs are Chases and long runs are Raids. During the run, the System guides you by voice with your pace, your target zone and each rep. Run outdoors with GPS or on a treadmill. RACE YOUR RIVAL Ren, your rival, shows up in your hardest sessions. Hold your pace to keep him behind you. LEVEL UP WITH EVERY RUN Each Gate you clear raises your stats: Speed, Endurance, Willpower and Recovery. Stats only grow from what you really ran. WATCH KAI EVOLVE Clear Gates to rank up from E to A. Kai changes form at every rank. S-rank comes only on race day, with the Rank Exam. YOUR RUN, DRAWN AS A CHAPTER After every run, your real performance becomes a short manhwa chapter starring Kai. Read them again in your Archive, and share your chapters, your results and your Hunter License. Kai Running gives general training guidance, not medical advice. Check with a doctor before you start a new training plan. Subscription: Kai Running offers an auto-renewing subscription that unlocks the full plan and every Gate. Payment is charged to your Apple ID when you confirm the purchase. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period. Manage or cancel it in your App Store account settings. Terms of Use: https://lesnants.com/terms Privacy Policy: https://lesnants.com/privacy
PaceGrid
Track your runs and cycling routes with GPS, heart rate, and training history. Analyze your performance, plan routes with offline maps, and sync with other fitness platforms. Basic recording is free, with an option to unlock all features via a one-time purchase.
- GPS workout recording
- Heart rate monitoring
- Route planning with offline maps
- Training history and analysis
- GPX file export
- Strava and Apple Health integration
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A run and ride tracker that works offline, keeps every workout on your phone and never asks for a subscription. PaceGrid records GPS, pace, splits and heart rate on iPhone and Apple Watch, with Bluetooth chest straps, offline maps and saved routes. RECORD YOUR WORKOUT Follow distance, pace, time and splits. Review your route and elevation afterwards, or record from Apple Watch without carrying your phone. CONNECT YOUR HEART RATE Pair a compatible Bluetooth heart-rate strap from the Record screen. PaceGrid uses fresh strap readings during recording. Supported smart rings add heart-rate, sleep and recovery data. Device features vary by model. SEE THE BIGGER PICTURE Explore training load, heart-rate zones, workout trends and recovery estimates. These estimates help you interpret your history; they do not diagnose conditions or guarantee injury prevention. PLAN AND SHARE Save routes, use offline maps, export GPX files and optionally sync with Strava. Apple Health integration is optional. You choose which connected services receive your data. FREE • Recording on your iPhone • Saving your runs • Reading your saved runs • GPX and FIT import and export • Smart Ring and the Device tab • Home and Lock Screen widgets • Strava Sync PACEGRID PRO Try all features for 7 days. After that, one purchase (no subscription) adds: • Training tab: daily coach, Load Guard, calendar and trends • Run Analysis • Year in Sport • Personal Heatmap • Personal Records • Matched Routes • Gear • Offline Maps • Routes • Apple Watch recording
Screenshots
Verdict
The clearest difference is rating: PaceGrid at 5.0 against Kai Running's 1.0. PaceGrid also leads on ads (none vs shown) and update cadence (every 5 days vs every 6 months). Kai Running's advantage is iOS requirement (15.1 vs 17.0). On price, ratings volume, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Kai Running sells 5 in-app purchases, starting at $9.99 per month and PaceGrid sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
PaceGrid holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
Kai Running ships an update every 6 months, PaceGrid every 5 days. Both last shipped on November 13, 2026.
| Parameter | Kai Running | PaceGrid |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 6 months | Every 5 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 198 MB | 46 MB |
| Age rating | 4+ | 12+ |
| Developer | Les Nants | Alexandru Ghita |
Customer experience
Kai Running
PaceGrid
In-app purchases
Kai Running
- Subscriptions$9.991 Month
- Monthly Plan$12.991 Month
- Yearly Plan (Special Offer)$39.991 Year
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- Subscriptions7 Days trial$39.991 Year
- Yearly Plan7 Days trial$49.991 Year
PaceGrid
- PaceGrid Pro$19.99









