# Polar Flow vs Zepp

The clearest difference is update cadence: Zepp at weekly against Polar Flow's monthly. Zepp also leads on chart position (#172 vs unranked) and iOS requirement (15.0 vs 17.0). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Polar Flow sells 1 in-app purchase, starting at $8.99 per month and Zepp sells 15 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.6 for Polar Flow against 4.6 for Zepp. Both are backed by a comparable volume of ratings — 50K and 82K respectively. Written reviews are what separate them: 49% of Polar Flow's written reviews are positive against 46% of Zepp's.

Polar Flow ships an update monthly, Zepp weekly. Both last shipped on October 4, 2026.

## The numbers

| Metric | Polar Flow | Zepp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (50K ratings)](https://appshunter.io/ios/app/polar-flow/id717172678/reviews) | [4.6 (82K ratings)](https://appshunter.io/ios/app/zepp/id1127269366/reviews) |
| Number of ratings | 50K | **82K** |
| Positive reviews | **49.5% of reviews** | 46.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | — | **#172** |
| Size | 189 MB | 510 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Polar Electro](https://appshunter.io/developer/532468555) | [Zepp Inc.](https://appshunter.io/developer/938688460) |

## What reviewers say

### Polar Flow

[App page](https://appshunter.io/ios/app/polar-flow/id717172678)

This app helps you track daily activity, analyze workouts with detailed metrics, and gain insights into sleep patterns and recovery. It allows for device management, route planning, and seamless syncing with other popular fitness platforms.

**Highlights:** Activity Tracking, Training Analysis, Sleep Insights, Training Load & Recovery, Device & Profile Management, Wireless Syncing, Third-Party Service Integration

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Polar Fitness Program | $8.99 | per month |

**What reviewers like**

- 🚀 Accurate heart rate monitoring
- 🔋 Good battery life
- 👍 Detailed workout data and analysis
- 👍 Intuitive and user-friendly app
- 👍 Seamless syncing with Polar devices

**What reviewers complain about**

- 🐛 Connectivity and syncing issues
- 🐛 Unreliable sleep tracking
- 🐛 Slow GPS initialization
- 👎 Cluttered and confusing app interface
- 👎 Limited customization options

**Reported bugs**

- App crashes during syncing
- Inconsistent data sync between watch and app
- Firmware updates causing loss of user data

**Requested features**

- Ability to manually edit workout data
- Integration with more third-party apps
- More advanced training programs and coaching
- Improved sleep tracking and analysis


### Zepp

[App page](https://appshunter.io/ios/app/zepp/id1127269366)

**Currently charting:** #172 Top Free · Health & Fitness (US App Store)

Track your workouts, health metrics, and nutrition with this comprehensive fitness app. It offers AI-powered coaching, detailed sleep analysis, and heart health monitoring. Customize your smartwatch experience and enjoy robust data security.

**Highlights:** Track macros via photo or manual entry, Monitor heart rate, sleep, stress, and SpO2, Analyze daily activity and advanced training data, Detailed sleep stage and recovery analysis, Customize Amazfit watch faces and mini apps, AI-powered wellness coaching

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

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zepp Fitness - monthly | $3.99 | per month |
| Monthly, 7-Day Free Trial | $9.99 | per month |
| Yearly, 14-Day Free Trial | $12.99 | per year |
| Yearly, 14 Day Free Trial | $29.99 | per year |
| Yearly Plan, 14-Day Free Trial | $34.99 | per year |
| Yearly Plan, 30-Day Free Trial | $39.99 | per year |
| Yearly Plan, 14-Day Free Trial | $39.99 | per year |
| Zepp Aura Premium - yearly | $49.99 | per year |
| Yearly Plan, 90-Day Free Trial | $49.99 | per year |
| Yearly Plan, 14-Day Free Trial | $49.99 | per year |
| watchface | $0.99 | one-time |
| miniprogram_level_2 | $1.99 | one-time |
| watchface | $1.99 | one-time |
| watchface | $2.99 | one-time |
| watchface | $3.99 | one-time |

**What reviewers like**

- 🚀 Detailed sleep analysis
- 🚀 Comprehensive fitness tracking
- 🚀 Great battery life
- 👍 Comfortable and durable watch design

**What reviewers complain about**

- 🐛 Inconsistent sleep tracking
- 🐛 GPS issues during workouts
- 🐛 Sync and connectivity problems
- 🔋 Drains battery quickly with certain features
- 👎 Confusing and cluttered app interface

**Reported bugs**

- App crashes after recent updates
- Inaccurate heart rate and activity tracking
- Syncing issues leading to data loss

**Requested features**

- Add more watch face customization options
- Integrate with more third-party apps (e.g. Strava, Apple Health)
- Improve notification handling and customization
- Add water sports tracking mode


## Frequently asked questions

### Is Polar Flow free?

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

### Is Zepp free?

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

### Which has better reviews, Polar Flow or Zepp?

Polar Flow and Zepp are both rated 4.6 out of 5 on the App Store, from 50K and 82K ratings respectively.

### Do Polar Flow or Zepp have ads?

Neither Polar Flow nor Zepp shows ads.

### Which is updated more often, Polar Flow or Zepp?

Polar Flow ships an update monthly, and Zepp weekly. Most recently, Polar Flow was updated on October 4, 2026 and Zepp on October 4, 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.*