# Kastyl vs Rate Limits

The clearest difference is in-app purchases: Rate Limits at none against Kastyl's 3. Kastyl's advantage is update cadence (every 2 days vs every 4 weeks) and iOS requirement (18.0 vs 27.0). On price, ads and device support there is nothing between them.

Both are free to download. Kastyl sells 3 in-app purchases, starting at $1.99 per month. Rate Limits asks for nothing beyond the download.

Kastyl ships an update every 2 days, Rate Limits every 4 weeks. Both last shipped on October 31, 2026.

## The numbers

| Metric | Kastyl | Rate Limits |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 4 weeks |
| Size | 78 MB | 8 MB |
| Requires iOS | **18.0** | 27.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [KASTET](https://appshunter.io/developer/6795452376) | [Neel Sharma](https://appshunter.io/developer/1757308509) |

## What reviewers say

### Kastyl

[App page](https://appshunter.io/ios/app/kastyl-ai-usage-tracker/id6805153196)

**In-app purchases (3)**

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


### Rate Limits

[App page](https://appshunter.io/ios/app/rate-limits-ai-usage-tracker/id6814702261)

**Features:** macOS Compatibility, iPhone Duo support

**In-app purchases:** none


## Frequently asked questions

### Is Kastyl free?

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

### Is Rate Limits free?

Rate Limits is free to download, with no in-app purchases.

### Do Kastyl or Rate Limits have ads?

Neither Kastyl nor Rate Limits shows ads.

### Which is updated more often, Kastyl or Rate Limits?

Kastyl ships an update every 2 days, and Rate Limits every 4 weeks. Most recently, Kastyl was updated on October 31, 2026 and Rate Limits 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.*