# Let's Do This for Organizers vs BLDR BK

The clearest difference is update cadence: Let's Do This for Organizers at every 3 weeks against BLDR BK's every 4 months. Let's Do This for Organizers also leads on device support (3 vs 1) and iOS requirement (12.4 vs 16.1). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Let's Do This for Organizers ships an update every 3 weeks, BLDR BK every 4 months. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Let's Do This for Organizers | BLDR BK |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/lets-do-this-for-organizers/id6443680261/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Free | — |
| Size | 30 MB | 1 MB |
| Requires iOS | **12.4** | 16.1 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Let's Do This](https://appshunter.io/developer/1505290660) | [Jose Miguel Filipe Antunes](https://appshunter.io/developer/1654197356) |

## What reviewers say

### Let's Do This for Organizers

[App page](https://appshunter.io/ios/app/lets-do-this-for-organizers/id6443680261)

Streamline event management for race organizers. This app simplifies participant check-in, bib assignment, and waiver signing for a smooth race day experience. Optimize operations and boost revenue by keeping registrations open and processing new participants instantly.

**Highlights:** Fast participant check-in, Bib number assignment, Waiver signing, Optimize event operations, Boost event revenue, Instant new participant check-in

**In-app purchases:** none


### BLDR BK

[App page](https://appshunter.io/ios/app/bldr-bk/id6444367444)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Let's Do This for Organizers free?

Let's Do This for Organizers is free to download, with no in-app purchases.

### Is BLDR BK free?

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

### Do Let's Do This for Organizers or BLDR BK have ads?

Neither Let's Do This for Organizers nor BLDR BK shows ads.

### Which is updated more often, Let's Do This for Organizers or BLDR BK?

Let's Do This for Organizers ships an update every 3 weeks, and BLDR BK every 4 months. Most recently, Let's Do This for Organizers was updated on October 24, 2026 and BLDR BK on October 8, 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.*