Comparison

Flex Coaching vs The Dr

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

Head to head

About

Flex Coaching

Features

Read full description

Monthly coaching service for female clients - both lifestyle and bodybuilding competition. In this app: - Messaging - View Plans - Check-Ins - Daily Habits - Log Workouts *Requires paid coaching plan Terms of use: https://kahunas.io/terms-conditions Privacy policy: https://kahunas.io/privacy

About

The Dr

Features

Read full description

Online Coaching with Dr Studelhausen In this app: - Messaging - View Plans - Check-Ins - Daily Habits - Log Workouts * App access requires paid coaching plan Terms of use: https://kahunas.io/terms-conditions Privacy policy: https://kahunas.io/privacy

Screenshots

Flex Coaching3 screens

The Dr3 screens

Verdict

The call

Flex Coaching and The Dr 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. Flex Coaching sells 1 in-app purchase, starting at $99.99 per month and The Dr sells 1 in-app purchase, starting at $200.00 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on September 8, 2026 and September 20, 2026 respectively.

ScorecardNo meaningful differences

Flex Coaching versus The Dr: the parameters behind the verdict, then further details
Parameter	Flex Coaching	The Dr
Price	Free	Free
Update frequency	Monthly	Monthly
Ads	No	No
In-app purchases	Yes	Yes
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	15.0	15.0
Further details — not scored
Size	52 MB	50 MB
Age rating	17+	17+
Developer	Jen Ford	Grant Tighe

In-app purchases

1 purchases

Flex Coaching

Subscriptions1

Monthly$99.991 Month

1 purchases

The Dr

Subscriptions1

Online Coaching$200.001 Month

Questions

Is Flex Coaching free?

Flex Coaching is free to download, with in-app purchases available.

Is The Dr free?

The Dr is free to download, with in-app purchases available.

Do Flex Coaching or The Dr have ads?

Neither Flex Coaching nor The Dr shows ads.

Which is updated more often, Flex Coaching or The Dr?

Flex Coaching ships an update monthly, and The Dr monthly. Most recently, Flex Coaching was updated on September 8, 2026 and The Dr on September 20, 2026.