# Kastyl: AI Usage Tracker — Limits, Resets & Widgets

> Limits, Resets & Widgets (iPhone/iPad app by KASTET.)

- Source: https://appshunter.io/ios/app/kastyl-ai-usage-tracker/id6805153196 (this page in markdown: same URL + `.md`)
- Developer: [KASTET](https://appshunter.io/developer/6795452376)
- Category: Developer Tools, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 78 MB
- Languages: American English
- Released: 2026-09-29
- Data updated: 2026-10-31

## What is Kastyl?

Kastyl helps you understand how much usage you have left across the AI tools you use every day. Connect your supported provider accounts and see their usage windows, reset times, account activity, and subscription status without opening each service separately.

Home Screen and Lock Screen widgets keep your limits visible when you need them. Live countdowns continue between refreshes, so you can quickly see how much capacity remains and when your usage resets.

Kastyl can also send smart reset, pace, and early-reset alerts. With Kastyl Companion, desktop task activity and completion notifications can be delivered directly to your Phone when your computer finishes supported AI task.

Your provider sessions stay protected on your device using Apple’s secure storage. Kastyl does not send provider access or refresh tokens to any servers. The relay is used only for the app services required for notifications, device pairing, and companion activity.

Kastyl supports Codex, Claude, Cursor, and Antigravity. Provider connections use their official authentication flows, and your provider accounts remain managed by the respective services directly on your phone. Private by design.

Kastyl is designed for developers who want a clearer view of their AI usage without manually checking several dashboards. Open the app when you need detail, glance at a widget when you are busy, and let Kastyl keep track of what is left and when it resets.

Kastyl is an independent application and is not affiliated with, endorsed by, or sponsored by OpenAI, Anthropic, Anysphere, Google, or any other provider. Provider names are used only to identify the services you choose to connect.

Terms of Use: https://kastyl.app/tos

Questions? contact@kastyl.app 
Support: support@kastyl.app

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Kastyl Pro Monthly | $1.99 | per month |
| Kastyl Pro — 3 Months | $4.99 | per 3 months |
| Kastyl Pro Yearly | $14.99 | per year |


## Chart rankings

- #96 in Top Grossing · Developer Tools (US App Store)

## Is Kastyl safe?

Not enough ratings yet to assess Kastyl.

## Is Kastyl legit?

Kastyl: AI Usage Tracker has limited verification signals. The AppsHunter Legitimacy Score for Kastyl is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### 1.2.2 — 2026-10-30

• Improved Antigravity token tracking, cache details, and API pricing
• Added Fast mode indicators and pricing
• Expanded Pro Activity charts with Time and API Pricing
• Added responsive tables to task results
• Minor bug fixes and performance improvements

### 1.2.1 — 2026-10-29

• Improved Antigravity token tracking, cache details, and API pricing
• Added Fast mode indicators and pricing
• Expanded Pro Activity charts with Time and API Pricing
• Added responsive tables to task results
• Minor bug fixes and performance improvements

### 1.2.0 — 2026-10-28

• Added provider-specific icons and clearer task details to notifications
• Formatted writing results and question replies in cleaner cards
• Added pinch-to-zoom for pair QR scanning
• Small fixes and performance improvements

### 1.1.1 — 2026-10-23

• Performance improvements and minor fixes

### 1.1.0 — 2026-10-20

• Added banked reset notifications for Codex Pro
• Fixed model name display in analytics and chat activity
• Updated app icons and the icon picker
• Performance improvements and minor fixes

## Related topics

[ai usage](https://appshunter.io/ios/topics/ai-usage)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-31.*