# Birthday Calendar Simple vs Kinfolio

The clearest difference is ads: Kinfolio at none against Birthday Calendar Simple's shown. Kinfolio also leads on update cadence (every 4 days vs every 2 months) and iOS requirement (15.0 vs 18.1). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Birthday Calendar Simple sells 1 one-off in-app purchase and Kinfolio sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Birthday Calendar Simple ships an update every 2 months, Kinfolio every 4 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Birthday Calendar Simple | Kinfolio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/birthday-calendar-simple/id6752114269/reviews)** | — |
| Number of ratings | **7** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 14 MB | 38 MB |
| Requires iOS | 18.1 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tevfik Yucek](https://appshunter.io/developer/566982862) | [Oleksandr Nesterov](https://appshunter.io/developer/1855967382) |

## What reviewers say

### Birthday Calendar Simple

[App page](https://appshunter.io/ios/app/birthday-calendar-simple/id6752114269)

Effortlessly remember and celebrate important birthdays. This app syncs with your contacts, offers customizable reminders, and provides a clear view of upcoming events. You can also add personal notes and discover missing birthdays through a shared database.

**Highlights:** Syncs with contacts, Customizable reminders, Upcoming birthday calendar, Add notes and contact info, Discover missing birthdays, Private by design

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### Kinfolio

[App page](https://appshunter.io/ios/app/kinfolio-keep-in-touch-notes/id6789970656)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kinfolio Pro Monthly | $2.99 | per month |
| Kinfolio Pro Yearly | $22.99 | per year |


## Frequently asked questions

### Is Birthday Calendar Simple free?

Birthday Calendar Simple is free to download, with in-app purchases available.

### Is Kinfolio free?

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

### Do Birthday Calendar Simple or Kinfolio have ads?

Birthday Calendar Simple shows ads; Kinfolio does not.

### Which is updated more often, Birthday Calendar Simple or Kinfolio?

Birthday Calendar Simple ships an update every 2 months, and Kinfolio every 4 days. Most recently, Birthday Calendar Simple was updated on November 5, 2026 and Kinfolio on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*