Comparison

Wondr booking app vs Boost System

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

App for gym members

About

Wondr booking app

Features

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Manage your training – right from your phone. With the Wondr app, you can book sessions, track your stats, access receipts and get updates from your gym. You can also follow your training journey and celebrate small milestones along the way.

About

Boost System

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Boost is an app for members in gyms connected to BoostSystem. In this app you can book classes, open the front door, and see all information linked to your gym membership. You can access: - Door opener. No more access cards. Open the door directly from the app. - My profile. A history of all your payments, bookings, and visits. - Booking. Book your future classes in the app. - Center information. Get an overview of when the center is crowded and when there is plenty of space. Contact information.

Screenshots

Wondr booking app4 screens

Boost System4 screens

Verdict

The call

Wondr booking app and Boost System are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Wondr booking app ships an update every 3 months, Boost System every 2 months. The most recent releases landed on September 28, 2026 and September 27, 2026 respectively.

ScorecardNo meaningful differences

Wondr booking app versus Boost System: the parameters behind the verdict, then further details
Parameter	Wondr booking app	Boost System
Price	Free	Free
Update frequency	Every 3 months	Every 2 months — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod — better	iPhone, iPod
Requires iOS	14.0 — better	15.0
Further details — not scored
Size	47 MB	24 MB
Age rating	4+	4+
Developer	Wondr	Cerum AS

In-app purchases

None

Wondr booking app

No in-app purchases

None

Boost System

No in-app purchases

Questions

Is Wondr booking app free?

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

Is Boost System free?

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

Do Wondr booking app or Boost System have ads?

Neither Wondr booking app nor Boost System shows ads.

Which is updated more often, Wondr booking app or Boost System?

Wondr booking app ships an update every 3 months, and Boost System every 2 months. Most recently, Wondr booking app was updated on September 28, 2026 and Boost System on September 27, 2026.