# BirthdaysPro vs SIG

The clearest difference is in-app purchases: SIG at none against BirthdaysPro's 3. SIG also leads on ads (none vs shown) and iOS requirement (11.0 vs 15.1). BirthdaysPro's advantage is update cadence (fortnightly vs every 38 months). On price and device support there is nothing between them.

Both are free to download. BirthdaysPro sells 3 in-app purchases, starting at $0.99 per 6 months. SIG asks for nothing beyond the download.

BirthdaysPro ships an update fortnightly, SIG every 38 months. The most recent releases landed on September 23, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | BirthdaysPro | SIG |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (1.1K ratings)](https://appshunter.io/ios/app/birthdayspro/id390055439/reviews)** | — |
| Number of ratings | **1.1K** | — |
| Positive reviews | 76.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 38 months |
| Monetization | Free with in-app purchases | — |
| Size | 34 MB | 14 MB |
| Requires iOS | 15.1 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Demodit GmbH](https://appshunter.io/developer/340785814) | [WELDER V.O.F.](https://appshunter.io/developer/1482310066) |

## What reviewers say

### BirthdaysPro

[App page](https://appshunter.io/ios/app/birthdayspro/id390055439)

This app helps you keep track of important dates like birthdays and anniversaries. It provides timely reminders and allows you to manage your contact list efficiently. An optional upgrade unlocks advanced features for enhanced organization.

**Highlights:** Birthday list sorted by date, Contact list sorted by name, Calendar view, Customizable reminders, Add/edit birthdays directly, Import friends from social networks, Optional premium features

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $0.99 | per 6 months |
| Premium, forever, one-time fee | $2.99 | one-time |
| Premium, forever, one-time fee | $4.99 | one-time |

**What reviewers like**

- 👍 Helpful birthday reminder
- 🚀 Efficient app that keeps users up-to-date
- 💡 Integrates with Facebook and contacts
- 🎉 Useful for remembering important dates

**What reviewers complain about**

- 🐛 Occasional crashes or bugs
- 🔍 Missing some birthdays or inaccurate data
- 🔔 Notifications not always working as expected
- 🤔 Confusing or overcomplicated interface

**Reported bugs**

- Syncing issues with Facebook and contacts
- Incorrect date display or birthday information
- Crashing or freezing on certain devices/iOS versions

**Requested features**

- Add option to customize birthday reminders
- Integrate with more calendars and social networks
- Provide more customization options for birthdays
- Include ability to send birthday wishes directly


### SIG

[App page](https://appshunter.io/ios/app/sig/id1501243024)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BirthdaysPro free?

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

### Is SIG free?

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

### Do BirthdaysPro or SIG have ads?

BirthdaysPro shows ads; SIG does not.

### Which is updated more often, BirthdaysPro or SIG?

BirthdaysPro ships an update fortnightly, and SIG every 38 months. Most recently, BirthdaysPro was updated on September 23, 2026 and SIG on September 10, 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.*