# evo vs Red Flags

The clearest difference is price: evo at Free against Red Flags's $0.79. evo also leads on update cadence (every 3 days vs every 26 months) and iOS requirement (13.4 vs 17.2). Red Flags's advantage is chart position (#151 vs unranked). On ads, in-app purchases and device support there is nothing between them.

evo is free to download; Red Flags costs $0.79 up front. Neither carries in-app purchases, so what you see is what you pay.

evo ships an update every 3 days, Red Flags every 26 months. The most recent releases landed on June 1, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | evo | Red Flags |
| --- | --- | --- |
| Price | **Free** | $0.79 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/evo-events-and-shared-calendar/id1673756979/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 26 months |
| Monetization | Free | — |
| Best chart rank | — | **#151** |
| Size | 62 MB | 5 MB |
| Requires iOS | **13.4** | 17.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Evo Social B.v.](https://appshunter.io/developer/1673756981) | [MoStudios LLC](https://appshunter.io/developer/1832227764) |

## What reviewers say

### evo

[App page](https://appshunter.io/ios/app/evo-events-and-shared-calendar/id1673756979)

This app helps you organize and share events with friends and family. It includes features for tracking attendees, posting updates, and capturing memories with a disposable camera. You can also share event calendars and relive moments through shared photo galleries.

**Highlights:** Host and track events, Disposable camera for guests, Share event calendars, Shared photo galleries, Follow creators for event updates, Birthday notifications, Syncs with digital calendar

**In-app purchases:** none


### Red Flags

[App page](https://appshunter.io/ios/app/red-flags-date-tracker/id6503232572)

**Currently charting:** #151 Top Paid · Social Networking (US App Store)

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

**In-app purchases:** none


## Frequently asked questions

### Is evo free?

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

### Is Red Flags free?

Red Flags costs $0.79, with no in-app purchases.

### Do evo or Red Flags have ads?

Neither evo nor Red Flags shows ads.

### Which is updated more often, evo or Red Flags?

evo ships an update every 3 days, and Red Flags every 26 months. Most recently, evo was updated on June 1, 2026 and Red Flags on September 17, 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.*