Comparison

Rebuild Training vs Functional Bodybuilding

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

Head to head
About

Rebuild Training

Optimize your health and physique with evidence-based training programs focusing on strength, cardio, and mobility. Guided by an expert, this app offers flexible programs, progress tracking, and a supportive community to help you achieve life-changing results.

Highlights
  • Strength training, cardio, and mobility programs
  • Expert-guided workouts with demos
  • Progress tracking and self-assessments
  • Flexibility to switch programs
  • Mobility library for streaming
  • Community support and motivation
Features
Read full description

Optimize your Health & Physique. Train under 3 pillars of fitness to rebuild your body: strength training, cardio and mobility, built by Jack Hanrahan. The training is evidence based and has been tested and refined with 1000’s of people, many of whom have achieved life changing results to their health, physique and wellbeing. The programs are easy to follow and fully guided by Jack. Start rebuilding your fitness with a free 7-day trial. Follow along exercise programs to rebuild your body and achieve complete physical freedom. The training includes: -Well-balanced programs: Strength, cardio and mobility. -Flexibility to switch programs. -Self assessments and progress tracking. -Strength workouts, with demos, tutorials, rest timers, RPE guidance and more. -Mobility routines for general and more specific needs. -Cardio protocols for all fitness levels. -Body composition tracking. -Exercise education to understand how to achieve your goals. -Community page for accountability, support and motivation. MOBILITY LIBRARY Access Jack’s growing library of mobility routines which can be streamed to your laptop or TV in the comfort of your home. Find a program that matches your goals & needs and start your journey to optimize your health and physique! PRICING TERMS Rebuild Training is free to download. Ongoing use requires a subscription to one of our premium plans, billed monthly, quarterly or annually. Customers who choose the annual billing cycle for the Rebuild Programs are eligible for a 7 day trial period. Unless cancelled or auto-renew is turned off 24 hours before the next billing date or 7-day trial end, you will be billed automatically after every payment period to renew your plan. You can see the full Terms & Conditions at:https://www.iubenda.com/terms-and-conditions/28899395 Privacy Policy: https://www.iubenda.com/privacy-policy/28899395

About

Functional Bodybuilding

Access all your Functional Bodybuilding resources in one place. This app houses everything from PERSIST programs to FBB ebooks, providing a centralized hub for your training materials.

Highlights
  • Access to PERSIST programs
  • FBB ebooks library
  • All offerings in one app
  • Centralized training hub
Features
Read full description

This app is the home for all Functional Bodybuilding offerings, from PERSIST to FBB ebooks, you will find it all here!

Screenshots

Rebuild Training4 screens
Functional Bodybuilding4 screens

Verdict

The call

The clearest difference is in-app purchases: Functional Bodybuilding at none against Rebuild Training's 3. Functional Bodybuilding also leads on rating (2.9 vs 2.6) and ratings volume (145 vs 8). Rebuild Training's advantage is review sentiment (50% vs 26%) and device support (3 vs 1). On price, update cadence, ads and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Rebuild Training sells 3 in-app purchases, starting at $29.99 per month. Functional Bodybuilding asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Functional Bodybuilding holds the better App Store score, 2.9 against 2.6. That said, the two scores are not equally well evidenced: Functional Bodybuilding has 145 ratings behind it against 8, so its average is the more settled of the two. Written reviews complicate that: 50% of Rebuild Training's written reviews are positive against 26% of Functional Bodybuilding's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Rebuild Training ships an update fortnightly, Functional Bodybuilding weekly. The most recent releases landed on October 10, 2026 and October 20, 2026 respectively.

Scorecard6 real differences · 4 level
Rebuild Training versus Functional Bodybuilding: the parameters behind the verdict, then further details
ParameterRebuild TrainingFunctional Bodybuilding
PriceFreeFree
Rating2.6 (8 ratings)2.9 (145 ratings) — better
Positive reviews50.0% of reviews — better26.5% of reviews
Number of ratings8145 — better
Update frequencyFortnightlyWeekly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better16.0
Further details — not scored
Size13 MB119 MB
Age rating4+17+
DeveloperJack Hanrahan Fitness LtdCliff Kohut

Customer experience

Rebuild Training

All ratings8 ratings
Positive25.0%
Neutral25.0%
Negative50.0%
Written reviews4 reviews
Positive50.0%
Neutral25.0%
Negative25.0%

Functional Bodybuilding

All ratings143 ratings
Positive42.0%
Neutral5.6%
Negative52.4%
Written reviews68 reviews
Positive26.5%
Neutral7.4%
Negative66.2%

Bugs and requests

Rebuild Training

Not enough reviews yet to summarise bugs or requests.

Functional Bodybuilding

Reported bugs

4 issues
  • Videos not playing
  • Workout data not saving
  • Calendar issues
  • App crashes after latest update

Requested features

3 requests
  • Simplify the app interface
  • Provide all workout details on one page
  • Improve the built-in timer functionality

In-app purchases

3 purchases

Rebuild Training

Subscriptions3
  • Monthly Subscription$29.991 Month
  • Quarterly Subscription$69.993 Months
  • Annual Subscription7 Days trial$269.991 Year
None

Functional Bodybuilding

No in-app purchases

Questions

Is Rebuild Training free?
Rebuild Training is free to download, with in-app purchases available.
Is Functional Bodybuilding free?
Functional Bodybuilding is free to download, with no in-app purchases.
Which has better reviews, Rebuild Training or Functional Bodybuilding?
Functional Bodybuilding is rated higher. Rebuild Training averages 2.6 out of 5 from 8 ratings, while Functional Bodybuilding averages 2.9 from 145 ratings.
Do Rebuild Training or Functional Bodybuilding have ads?
Neither Rebuild Training nor Functional Bodybuilding shows ads.
Which is updated more often, Rebuild Training or Functional Bodybuilding?
Rebuild Training ships an update fortnightly, and Functional Bodybuilding weekly. Most recently, Rebuild Training was updated on October 10, 2026 and Functional Bodybuilding on October 20, 2026.

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