# Run Trainer vs kaizen | Adaptive Run Training

The clearest difference is monetization model: Run Trainer at free with in-app purchases against kaizen | Adaptive Run Training's subscription. Run Trainer also leads on ratings volume (198 vs 28). kaizen | Adaptive Run Training's advantage is rating (4.8 vs 4.4) and update cadence (every 10 days vs monthly). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Run Trainer sells 3 in-app purchases, starting at $5.99 per month and kaizen | Adaptive Run Training sells 15 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

kaizen | Adaptive Run Training holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: Run Trainer has 198 ratings behind it against 28, so its average is the more settled of the two. Written reviews point the same way: 53% of Run Trainer's written reviews are positive against 58% of kaizen | Adaptive Run Training's.

Run Trainer ships an update monthly, kaizen | Adaptive Run Training every 10 days. The most recent releases landed on September 25, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Run Trainer | kaizen | Adaptive Run Training |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (198 ratings)](https://appshunter.io/ios/app/run-trainer-running-tracker/id403963861/reviews) | **[4.8 (28 ratings)](https://appshunter.io/ios/app/kaizen-adaptive-run-training/id1638679224/reviews)** |
| Number of ratings | **198** | 28 |
| Positive reviews | 52.9% of reviews | **58.1% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 10 days** |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 125 MB | 81 MB |
| Requires iOS | 17.6 | **16.4** |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Run Trainer B.V.](https://appshunter.io/developer/1546716145) | [Run Kaizen LTD](https://appshunter.io/developer/1638679226) |

## What reviewers say

### Run Trainer

[App page](https://appshunter.io/ios/app/run-trainer-running-tracker/id403963861)

This app serves as a personal running coach and GPS tracker, offering guided training plans for various distances from Couch to 5K to half marathons. It provides audio coaching, detailed performance statistics, and seamless integration with Apple devices.

**Highlights:** Personalized training plans (Couch to 5K, 10K, Half Marathon), Customizable training schedules (MyPlan), Audio coaching with voice cues, Integrated music control, Free Run mode for untracked runs, Accurate GPS tracking with Apple Maps, Detailed performance statistics (SpeedMap, pace overview), Apple Watch app for hands-free training

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All features per month | $5.99 | per month |
| All features per 3 months | $15.49 | per 3 months |
| All features per month year | $43.99 | per year |

**What reviewers like**

- 👍 Excellent for beginner runners
- 🎯 Effective interval training structure
- 🎵 Works with music in background
- 📊 Good progress tracking and statistics
- ⚡ Simple and easy to use interface

**What reviewers complain about**

- 🐛 Frequent app crashes and glitches
- 🔐 Difficult to cancel subscriptions
- 💰 Misleading free trial/freemium model
- 📱 Login issues and authentication problems
- 🌐 WiFi-only connectivity requirement

**Reported bugs**

- App crashes mid-run and loses recording
- Pausing workout causes progress restart
- Login freezes and authentication failures
- Sign-up form stuck on DOB slider
- App won't open or keeps crashing

**Requested features**

- Apple Watch standalone functionality without phone
- Integration with Fitbit and MyFitnessPal
- Integration with native Fitness app
- Weight loss tracking integration
- Treadmill mode improvements


### kaizen | Adaptive Run Training

[App page](https://appshunter.io/ios/app/kaizen-adaptive-run-training/id1638679224)

This app uses your running history to calculate your current fitness and set dynamic weekly distance targets. It offers personalized training guidance to help you achieve your running goals, whether for a specific race or general improvement. The app provides race predictions and flexible training plans that adapt to your schedule.

**Highlights:** Data-driven training partner, Dynamic weekly distance targets, Personalized fitness calculations, Race predictions for various distances, Flexible training plans, Build consistency and improve fitness

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Subscription | $12.99 | per month |
| Subscription | $12.99 | per month |
| Monthly Subscription | $14.99 | per month |
| Monthly Subscription | $14.99 | per month |
| Subscription | $14.99 | per month |
| Subscription | $19.99 | per 3 months |
| Subscription | $24.99 | per 3 months |
| Quarterly Subscription | $34.99 | per 3 months |
| Quarterly Subscription | $34.99 | per 3 months |
| Subscription | $49.99 | per year |
| Subscription | $69.99 | per year |
| Annual Subscription | $89.99 | per year |
| Annual Subscription | $89.99 | per year |
| Subscription | $89.99 | per year |
| Subscription | $89.99 | per year |

**What reviewers like**

- ✨ Adaptive and flexible training
- 🎯 Accurate race predictions
- 📈 Helps with improvement and progress
- 💡 Simple and effective concept
- 🤝 Good customer support

**What reviewers complain about**

- 🐛 Very buggy and unstable
- 📉 Inaccurate predictions sometimes
- 🤔 Confusing to understand and use
- 💰 Expensive subscription fee
- ⏳ Lacks advanced features

**Reported bugs**

- Setup process crashes or loops
- App crashes frequently
- Mileage calculations are incorrect
- Planned mileage doesn't add up correctly
- App doesn't get past the first step

**Requested features**

- Allow editing of runs
- More personalization in training plans
- Ability to start the training week on different days
- Consider elevation in training calculations
- Add more workout suggestions and paces


## Frequently asked questions

### Is Run Trainer free?

Run Trainer is free to download, with in-app purchases available.

### Is kaizen | Adaptive Run Training free?

kaizen | Adaptive Run Training is free to download, with in-app purchases available.

### Which has better reviews, Run Trainer or kaizen | Adaptive Run Training?

kaizen | Adaptive Run Training is rated higher. Run Trainer averages 4.4 out of 5 from 198 ratings, while kaizen | Adaptive Run Training averages 4.8 from 28 ratings.

### Do Run Trainer or kaizen | Adaptive Run Training have ads?

Neither Run Trainer nor kaizen | Adaptive Run Training shows ads.

### Which is updated more often, Run Trainer or kaizen | Adaptive Run Training?

Run Trainer ships an update monthly, and kaizen | Adaptive Run Training every 10 days. Most recently, Run Trainer was updated on September 25, 2026 and kaizen | Adaptive Run Training on September 27, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*