Let's Do This for Organizers vs BLDR BK
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Let's Do This for Organizers
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.
- Fast participant check-in
- Bib number assignment
- Waiver signing
- Optimize event operations
- Boost event revenue
- Instant new participant check-in
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Delight race participants – and your team – with the app designed for smooth race day experiences. The Let’s Do This for Organizers app makes event management simple, so race day goes off without a hitch! ENJOY LIGHTING-FAST CHECK-IN Our easy-to-use tech means your staff can check in participants, assign bib numbers and get waivers signed in minutes. OPTIMIZE YOUR EVENT OPERATIONS Everything’s in the app, so come race day your team on the ground has everything they need to get race participants to the start line. BOOST YOUR BOTTOM LINE Keep booking open through race day and check in newly registered participants instantly on the app. DELIGHT PARTICIPANTS ON RACE DAY Smooth check-in and relaxed staff will leave your race participants ready to focus on hitting PBs and making memories.
BLDR BK
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BLDR BK (Boulderbook) is a simple tracking app to log your climbing sessions! Key Features: - Lightweight and fast - Notifications when you arrive at the gym
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Let's Do This for Organizers | BLDR BK |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 3 weeks — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.4 — better | 16.1 |
| Further details — not scored | ||
| Size | 30 MB | 1 MB |
| Age rating | 12+ | 4+ |
| Developer | Let's Do This | Jose Miguel Filipe Antunes |
In-app purchases
Let's Do This for Organizers
No in-app purchases
BLDR BK
No in-app purchases
Questions
Is Let's Do This for Organizers free?
Is BLDR BK free?
Do Let's Do This for Organizers or BLDR BK have ads?
Which is updated more often, Let's Do This for Organizers or BLDR BK?
Other comparisons
