# Flex AI Workout Trainer & Log vs Gymguru

The clearest difference is review sentiment: Gymguru at 100% against Flex AI Workout Trainer & Log's 69%. Gymguru also leads on rating (5.0 vs 4.6) and update cadence (every 3 days vs every 9 days). Flex AI Workout Trainer & Log's advantage is ratings volume (2.4K vs 3). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Flex AI Workout Trainer & Log sells 8 in-app purchases, starting at $1.99 per month and Gymguru sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Gymguru holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Flex AI Workout Trainer & Log has 2.4K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 69% of Flex AI Workout Trainer & Log's written reviews are positive against 100% of Gymguru's.

Flex AI Workout Trainer & Log ships an update every 9 days, Gymguru every 3 days. The most recent releases landed on September 23, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Flex AI Workout Trainer & Log | Gymguru |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (2.4K ratings)](https://appshunter.io/ios/app/flex-ai-workout-trainer-and-log/id1446354547/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/gymguru-workout-tracker/id6758210021/reviews)** |
| Number of ratings | **2.4K** | 3 |
| Positive reviews | 69.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 3 days** |
| Monetization | Freemium | Freemium |
| Size | 574 MB | 43 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 17+ | 17+ |
| Developer | [Flex Artificial Intelligence Inc.](https://appshunter.io/developer/1446354546) | [Yernar Izbatyrov](https://appshunter.io/developer/1871464320) |

## What reviewers say

### Flex AI Workout Trainer & Log

[App page](https://appshunter.io/ios/app/flex-ai-workout-trainer-and-log/id1446354547)

This app uses AI to provide personalized workout plans and real-time form feedback for weightlifters. It tracks progress, offers adaptive progression, and includes motivational features like leaderboards and streaks. It's designed for all experience levels, from beginners to pros.

**Highlights:** AI personal trainer, Real-time form feedback, Personalized workout plans, Adaptive progression, Strength tracking, Community leaderboards, Apple Watch integration

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Subscription Monthly | $1.99 | per month |
| Premium Plus Monthly | $2.99 | per month |
| Premium Yearly Subscription | $9.99 | per year |
| Premium Plus Family Monthly | $9.99 | per month |
| Premium Plus Yearly | $19.99 | per year |
| Premium Plus Family Yearly | $49.99 | per year |
| 1 Month Free Premium | Free | one-time |
| Lifetime Free Premium | Free | one-time |

**What reviewers like**

- 🚀 Detailed workout tracking
- 👍 Customizable workouts
- 🔒 Comprehensive exercise library
- 💡 Helpful progress tracking
- 👍 Clean and intuitive interface

**What reviewers complain about**

- 🐛 Glitches and bugs
- 💰 Expensive premium subscription
- 🔒 Limited functionality without premium
- 🐛 Inconsistent rest timer
- 🐛 Workout data loss

**Reported bugs**

- App crashes on iOS 16 update
- Inability to log workouts on previous days
- Inconsistent syncing between app and Apple Watch

**Requested features**

- Offline workout mode
- Ability to save and reuse custom workout plans
- Muscle group targeting and analytics
- Social features and community integration


### Gymguru

[App page](https://appshunter.io/ios/app/gymguru-workout-tracker/id6758210021)

This app helps you build and track your workout routines, focusing on logging sets, reps, and weight. It offers features like streak tracking for consistency and a clean interface. Premium unlocks custom plans, AI coaching, and detailed progress stats.

**Highlights:** Workout plan builder, Exercise tracking (sets, reps, weight), Streak tracking for consistency, Custom workout plans, AI Coach for guidance, Progress stats and personal records

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $3.99 | per 7 days |
| Monthly Subscription | $9.99 | per month |
| Yearly Subscription | $49.99 | per year |


## Frequently asked questions

### Is Flex AI Workout Trainer & Log free?

Flex AI Workout Trainer & Log is free to download, with in-app purchases available.

### Is Gymguru free?

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

### Which has better reviews, Flex AI Workout Trainer & Log or Gymguru?

Gymguru is rated higher. Flex AI Workout Trainer & Log averages 4.6 out of 5 from 2.4K ratings, while Gymguru averages 5.0 from 3 ratings.

### Do Flex AI Workout Trainer & Log or Gymguru have ads?

Neither Flex AI Workout Trainer & Log nor Gymguru shows ads.

### Which is updated more often, Flex AI Workout Trainer & Log or Gymguru?

Flex AI Workout Trainer & Log ships an update every 9 days, and Gymguru every 3 days. Most recently, Flex AI Workout Trainer & Log was updated on September 23, 2026 and Gymguru on September 9, 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.*