# Birthdays vs GridCal

The clearest difference is price: Birthdays at Free against GridCal's $1.99. Birthdays also leads on iOS requirement (16.4 vs 26.0). GridCal's advantage is in-app purchases (none vs 2) and update cadence (every 3 days vs every 2 weeks). On ads and device support there is nothing between them.

Birthdays is free to download; GridCal costs $1.99 up front. Birthdays sells 2 one-off in-app purchases. GridCal asks for nothing beyond the download.

Birthdays ships an update every 2 weeks, GridCal every 3 days. The most recent releases landed on November 8, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Birthdays | GridCal |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 3 days** |
| Size | 57 MB | 2 MB |
| Requires iOS | **16.4** | 26.0 |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Simon Lehmann](https://appshunter.io/developer/1796878767) | [SOOYEON CHO](https://appshunter.io/developer/6821067463) |

## What reviewers say

### Birthdays

[App page](https://appshunter.io/ios/app/birthdays-reminder-app/id6742112481)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic version | $0.99 | one-time |
| Full version | $2.99 | one-time |


### GridCal

[App page](https://appshunter.io/ios/app/gridcal/id6821067461)

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Birthdays free?

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

### Is GridCal free?

GridCal costs $1.99, with no in-app purchases.

### Do Birthdays or GridCal have ads?

Neither Birthdays nor GridCal shows ads.

### Which is updated more often, Birthdays or GridCal?

Birthdays ships an update every 2 weeks, and GridCal every 3 days. Most recently, Birthdays was updated on November 8, 2026 and GridCal on November 6, 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.*