# TraderSync vs STINU Position Size Calculator

The clearest difference is rating: STINU Position Size Calculator at 4.6 against TraderSync's 2.7. STINU Position Size Calculator also leads on review sentiment (46% vs 25%) and update cadence (every 2 weeks vs every 6 weeks). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. TraderSync sells 6 in-app purchases, starting at $29.99 per month and STINU Position Size Calculator sells 1 in-app purchase, starting at $18.99 per year. Whichever you choose, the download price is not the number that matters.

STINU Position Size Calculator holds the better App Store score, 4.6 against 2.7. That said, the two scores are not equally well evidenced: STINU Position Size Calculator has 835 ratings behind it against 84, so its average is the more settled of the two. Written reviews point the same way: 25% of TraderSync's written reviews are positive against 46% of STINU Position Size Calculator's.

TraderSync ships an update every 6 weeks, STINU Position Size Calculator every 2 weeks. The most recent releases landed on October 14, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | TraderSync | STINU Position Size Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (84 ratings)](https://appshunter.io/ios/app/tradersync/id1177329277/reviews) | **[4.6 (835 ratings)](https://appshunter.io/ios/app/stinu-position-size-calculator/id1415292923/reviews)** |
| Number of ratings | 84 | **835** |
| Positive reviews | 25.0% of reviews | **45.9% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 2 MB | 60 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Shockdav](https://appshunter.io/developer/845276311) | [Black Tower Investments Ltd.](https://appshunter.io/developer/659419543) |

## What reviewers say

### TraderSync

[App page](https://appshunter.io/ios/app/tradersync/id1177329277)

Track your trading performance across various markets like stocks, crypto, and forex. Log trades with details, analyze performance with comprehensive reports, and identify areas for improvement to gain an edge.

**Highlights:** Trade journaling, Portfolio tracking, Performance reports, Stock, Crypto, Forex, Options, Futures, Trade execution logging, Notes and screenshots

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TraderSync Pro - Monthly | $29.99 | per month |
| TraderSync Premium Monthly | $49.99 | per month |
| TraderSync Elite Monthly Plan | $79.99 | per month |
| TraderSync Pro Annual | $179.99 | per year |
| TraderSync Premium Annual | $299.99 | per year |
| TraderSync Elite Annual Plan | $479.99 | per year |


### STINU Position Size Calculator

[App page](https://appshunter.io/ios/app/stinu-position-size-calculator/id1415292923)

This app provides precise position sizing for Forex, commodities, and cryptocurrency trading using live market data. It helps traders eliminate errors and execute trades with confidence by accurately calculating trade size based on risk tolerance and stop-loss distances.

**Highlights:** Real-time market data for accurate calculations, Supports multiple account currencies, Fast calculation for multiple stop-loss distances, Calculations for commodities and crypto, Leverage independent risk calculation, Intuitive and clean user interface, Eliminates manual calculation errors

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Subscription | $18.99 | per year |

**What reviewers like**

- 🚀 Easy to use
- 👍 Simple and accurate
- 🚀 Quick calculations
- 👍 Great for risk management
- 👍 Helpful for beginners

**What reviewers complain about**

- 🐛 Doesn't work on weekends
- 🐛 Inaccurate risk calculations
- 💰 Overpriced subscription
- 🐛 Frequent errors and bugs
- 🐛 Doesn't work with all currency pairs

**Reported bugs**

- Requests for market price fail
- Unable to enter decimal values for pips
- App crashes on certain devices
- Incorrect lot size calculations

**Requested features**

- Add support for indices (US30, NAS100, SPX500)
- Add support for cryptocurrencies and commodities
- Allow calculations outside of market hours
- Add a night mode/dark theme
- Implement saved profiles for different account sizes


## Frequently asked questions

### Is TraderSync free?

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

### Is STINU Position Size Calculator free?

STINU Position Size Calculator is free to download, with in-app purchases available.

### Which has better reviews, TraderSync or STINU Position Size Calculator?

STINU Position Size Calculator is rated higher. TraderSync averages 2.7 out of 5 from 84 ratings, while STINU Position Size Calculator averages 4.6 from 835 ratings.

### Do TraderSync or STINU Position Size Calculator have ads?

Neither TraderSync nor STINU Position Size Calculator shows ads.

### Which is updated more often, TraderSync or STINU Position Size Calculator?

TraderSync ships an update every 6 weeks, and STINU Position Size Calculator every 2 weeks. Most recently, TraderSync was updated on October 14, 2026 and STINU Position Size Calculator on October 18, 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.*