# Polar Flow vs Jack Steel's Protein Tracker

The clearest difference is update cadence: Jack Steel's Protein Tracker at every 10 days against Polar Flow's monthly. Jack Steel's Protein Tracker also leads on iOS requirement (15.1 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 Jack Steel's Protein Tracker sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Polar Flow ships an update monthly, Jack Steel's Protein Tracker every 10 days. The most recent releases landed on October 26, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Polar Flow | Jack Steel's Protein Tracker |
| --- | --- | --- |
| 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 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 189 MB | 37 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Polar Electro](https://appshunter.io/developer/532468555) | [Wrist Skill Labs LLC](https://appshunter.io/developer/1892489917) |

## 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


### Jack Steel's Protein Tracker

[App page](https://appshunter.io/ios/app/jack-steels-protein-tracker/id6799971985)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Yearly | $9.99 | per year |
| Lifetime | $30.00 | one-time |


## Frequently asked questions

### Is Polar Flow free?

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

### Is Jack Steel's Protein Tracker free?

Jack Steel's Protein Tracker is free to download, with in-app purchases available.

### Do Polar Flow or Jack Steel's Protein Tracker have ads?

Neither Polar Flow nor Jack Steel's Protein Tracker shows ads.

### Which is updated more often, Polar Flow or Jack Steel's Protein Tracker?

Polar Flow ships an update monthly, and Jack Steel's Protein Tracker every 10 days. Most recently, Polar Flow was updated on October 26, 2026 and Jack Steel's Protein Tracker 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.*