# Polar Flow vs Streamfit

The clearest difference is update cadence: Polar Flow at monthly against Streamfit's every 3 months. Streamfit's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Polar Flow sells 1 in-app purchase, starting at $8.99 per month and Streamfit sells 8 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

Polar Flow ships an update monthly, Streamfit every 3 months. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Polar Flow | Streamfit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (50K ratings)](https://appshunter.io/ios/app/polar-flow/id717172678/reviews)** | — |
| Number of ratings | **50K** | — |
| Positive reviews | 49.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 189 MB | 47 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Polar Electro](https://appshunter.io/developer/532468555) | [Streamfit Kft.](https://appshunter.io/developer/1681075736) |

## 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


### Streamfit

[App page](https://appshunter.io/ios/app/streamfit/id6447360142)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Streamfit AI Coach | $6.99 | per month |
| Streamfit Originals | $12.99 | per month |
| Szalka Andi | $24.99 | per month |
| Lőrincz Ernő | $24.99 | per month |
| Jeges Jutka | $29.99 | per month |
| Farkas Kinga | $29.99 | per month |
| Pásztor Andi | $29.99 | per month |
| Tatarek Rezső | $29.99 | per month |


## Frequently asked questions

### Is Polar Flow free?

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

### Is Streamfit free?

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

### Do Polar Flow or Streamfit have ads?

Neither Polar Flow nor Streamfit shows ads.

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

Polar Flow ships an update monthly, and Streamfit every 3 months. Most recently, Polar Flow was updated on October 27, 2026 and Streamfit on October 25, 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.*