Comparison

Nightmare Muscle vs STRNGTH

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

Head to head
About

Nightmare Muscle

Features
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Download the Nightmare Muscle app to easily book classes and manage your fitness experience - anytime, anywhere. Make a reservation, get added to a wait list, purchase class packages, check your profile and membership status, keep up to date with the latest products and services, and more โ€“ all from your device. Visit http://nightmaremuscle.com to learn more.

About

STRNGTH

Features
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STRNGTH is the training app for athletes working with a strength coach. Your coach writes your program in their dashboard. STRNGTH is where you run it: today's session laid out set by set, and a way to log what you actually lifted without breaking your rhythm. INVITE ONLY There is no sign-up in STRNGTH. Your account exists because your coach created it and sent you an invitation. If you are not already working with a coach on the platform, there is nothing here for you yet. ON THE GYM FLOOR - Today's session, exercise by exercise, with the sets, reps and RPE your coach prescribed - Log load, reps and RPE without leaving the screen - A rest timer that keeps running when you switch tabs or lock your phone, counting down on the Lock Screen and in the Dynamic Island - A plate calculator that tells you what to load on the bar - Swap in a substitute when the machine you need is taken - Start your own timer when you want one the program did not ask for WORKS WITHOUT SIGNAL Gyms have bad reception, so STRNGTH does not depend on it. Your whole training block is cached on the device before you get there, everything you log is written locally first, and it syncs by itself the moment you have a connection again. You will not lose a set to a dead zone, and there is nothing to remember to press. CHECK-INS YOUR COACH READS After a session you rate sleep, hydration, calories, soreness, mental fatigue and drive. Your coach sees those next to your numbers, which is how next week gets written from how this week actually went rather than how it was meant to go. YOUR NUMBERS - Personal records and estimated 1RM for the lifts you care about - Trends across your recent check-ins - A calendar of what you have done and what is coming - Full history, session by session - An exercise library with instructions when you are unsure of a movement MEET DAY Log all nine attempts as they happen, mark each one good or missed, and watch your total and DOTS move. Accounts are for adults aged 18 and over.

Screenshots

Nightmare Muscle4 screens
STRNGTH4 screens

Verdict

The call

The clearest difference is update cadence: STRNGTH at fortnightly against Nightmare Muscle's every 23 months. Nightmare Muscle's advantage is iOS requirement (13.5 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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

UpkeepUpdate frequency

Nightmare Muscle ships an update every 23 months, STRNGTH fortnightly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard2 real differences ยท 4 level
Nightmare Muscle versus STRNGTH: the parameters behind the verdict, then further details
ParameterNightmare MuscleSTRNGTH
PriceFreeFree
Update frequencyEvery 23 monthsFortnightly โ€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPod โ€” betteriPhone
Requires iOS13.5 โ€” better17.0
Further details โ€” not scored
Size14 MB12 MB
Age rating4+17+
DeveloperNightmare Muscle LLCJustin Van Bibber

In-app purchases

None

Nightmare Muscle

No in-app purchases

None

STRNGTH

No in-app purchases

Questions

Is Nightmare Muscle free?
Nightmare Muscle is free to download, with no in-app purchases.
Is STRNGTH free?
STRNGTH is free to download, with no in-app purchases.
Do Nightmare Muscle or STRNGTH have ads?
Neither Nightmare Muscle nor STRNGTH shows ads.
Which is updated more often, Nightmare Muscle or STRNGTH?
Nightmare Muscle ships an update every 23 months, and STRNGTH fortnightly. Most recently, Nightmare Muscle was updated on October 25, 2026 and STRNGTH on October 24, 2026.

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