# FastlyCal vs SubZen

The clearest difference is in-app purchases: FastlyCal at none against SubZen's 6. FastlyCal also leads on update cadence (every 3 days vs fortnightly). SubZen's advantage is iOS requirement (16.4 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. SubZen sells 6 in-app purchases, starting at $0.99 per month. FastlyCal asks for nothing beyond the download.

FastlyCal ships an update every 3 days, SubZen fortnightly. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | FastlyCal | SubZen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/fastlycal/id6751952337/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Fortnightly |
| Monetization | Free | — |
| Size | 5 MB | 65 MB |
| Requires iOS | 18.0 | **16.4** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Anzah Khan](https://appshunter.io/developer/1836718807) | [Michael Abou Khalil](https://appshunter.io/developer/1829498538) |

## What reviewers say

### FastlyCal

[App page](https://appshunter.io/ios/app/fastlycal/id6751952337)

This lightweight finance app helps you organize recurring payments without unnecessary features. It provides a clean dashboard for monthly spending, payment reminders, and currency support, all while being fast and offline-friendly.

**Highlights:** Organize recurring payments, Monthly spending overview, Payment due reminders, Support for all billing cycles and currencies, Offline functionality, Tiny app size

**In-app purchases:** none


### SubZen

[App page](https://appshunter.io/ios/app/subzen-subscription-tracker/id6759507520)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SubZen Pro | $0.99 | per month |
| Support SubZen - Small | $1.99 | one-time |
| Support SubZen - Kind | $2.99 | one-time |
| Support SubZen - Generous | $5.99 | one-time |
| Support SubZen - Big | $10.99 | one-time |
| Support SubZen - Amazing | $19.99 | one-time |


## Frequently asked questions

### Is FastlyCal free?

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

### Is SubZen free?

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

### Do FastlyCal or SubZen have ads?

Neither FastlyCal nor SubZen shows ads.

### Which is updated more often, FastlyCal or SubZen?

FastlyCal ships an update every 3 days, and SubZen fortnightly. Most recently, FastlyCal was updated on October 7, 2026 and SubZen on October 12, 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.*