# STS Position Size Calculator vs Usage for Claude + ChatGPT

The clearest difference is price: Usage for Claude + ChatGPT at Free against STS Position Size Calculator's $12.99. STS Position Size Calculator's advantage is in-app purchases (none vs 6) and iOS requirement (11.0 vs 26.2). On update cadence, ads and device support there is nothing between them.

Usage for Claude + ChatGPT is free to download; STS Position Size Calculator costs $12.99 up front. Usage for Claude + ChatGPT sells 6 in-app purchases, starting at $0.99 per month. STS Position Size Calculator asks for nothing beyond the download.

STS Position Size Calculator ships an update fortnightly, Usage for Claude + ChatGPT every 3 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | STS Position Size Calculator | Usage for Claude + ChatGPT |
| --- | --- | --- |
| Price | $12.99 | **Free** |
| Rating | — | **[4.2 (5 ratings)](https://appshunter.io/ios/app/usage-for-claude-plus-chatgpt/id6755173244/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 59.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | — | Freemium |
| Size | 46 MB | 30 MB |
| Requires iOS | **11.0** | 26.2 |
| Devices | iPhone, iPad, iPod, Mac | iPhone, iPad, Mac, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [Smart Trading Software ltd](https://appshunter.io/developer/1706120455) | [amir hayek](https://appshunter.io/developer/845110506) |

## What reviewers say

### STS Position Size Calculator

[App page](https://appshunter.io/ios/app/sts-position-size-calculator/id6465696183)

**In-app purchases:** none


### Usage for Claude + ChatGPT

[App page](https://appshunter.io/ios/app/usage-for-claude-plus-chatgpt/id6755173244)

Monitor your AI usage limits for Claude and ChatGPT. Track session and weekly limits, receive timely alerts, and gain insights into your usage history across multiple accounts and devices.

**Highlights:** Track Claude and ChatGPT limits, Support for multiple accounts, Session and weekly limit monitoring, Home Screen and Lock Screen widgets, Apple Watch app and complications, Usage history up to 90 days, Alerts for limit changes

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro Subscription | $0.99 | per month |
| Monthly Pro Subscription | $5.99 | per year |
| Buy me a coffee | $2.99 | one-time |
| Buy me lunch | $9.99 | one-time |
| Dashboard Full History | $17.99 | one-time |
| You're awesome | $19.99 | one-time |


## Frequently asked questions

### Is STS Position Size Calculator free?

STS Position Size Calculator costs $12.99, with no in-app purchases.

### Is Usage for Claude + ChatGPT free?

Usage for Claude + ChatGPT is free to download, with in-app purchases available.

### Do STS Position Size Calculator or Usage for Claude + ChatGPT have ads?

Neither STS Position Size Calculator nor Usage for Claude + ChatGPT shows ads.

### Which is updated more often, STS Position Size Calculator or Usage for Claude + ChatGPT?

STS Position Size Calculator ships an update fortnightly, and Usage for Claude + ChatGPT every 3 weeks. Most recently, STS Position Size Calculator was updated on November 3, 2026 and Usage for Claude + ChatGPT on October 31, 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.*