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Fitness · head to head

Stronger by Science vs StrongLifts

Stronger by Science logo

Stronger by Science

Fitness

Evidence-based strength training

From
$10/one-time
Rated
-
Full reviewWebsite
StrongLifts logo

StrongLifts

Fitness

5x5 barbell strength training app built around a fixed beginner programme, sold as a subscription

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only StrongLifts has a free tier, so it costs nothing to try first.
  • Each has a real cost: Stronger by Science limited interactive features compared to competitors with video form coaching; StrongLifts it is built around one specific programme, so once a lifter progresses beyond what 5x5 is designed for and stalls, the app's core structure no longer fits their needs and they typically need a different programme entirely.
  • They diverge on capability: Stronger by Science covers Evidence-based programs, StrongLifts covers 5x5 programme tracking.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Stronger by Science and StrongLifts actually diverge.

Attributes where Stronger by Science and StrongLifts differ
AttributeStronger by ScienceStrongLifts
Starting price$10/one-timeFree
Pricing modelone-timeFree tier plus subscription
Free tierNoYes
PlatformsWebiOS, Android
Founded2015Unknown

Identical on both: user rating (Not yet rated), category (Fitness).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Stronger by Science

  • Evidence-based programs
  • Auto-regulated training
  • Progress tracking
  • RPE-based progression
  • Customizable templates
  • Google Sheets
  • Excel
  • Web support

Only in StrongLifts

  • 5x5 programme tracking
  • Automatic progression
  • Plate calculator
  • Rest timer
  • Form videos
  • Workout history

What people use each for

The jobs each tool is most often brought in to do.

Stronger by Science

  • Workout trackingnot StrongLifts
  • Nutrition managementnot StrongLifts
  • Health monitoringnot StrongLifts
  • Fitness coachingnot StrongLifts
  • Wellness improvementnot StrongLifts

StrongLifts

  • A beginner lifter wanting a structured, proven barbell programme rather than designing their ownnot Stronger by Science
  • Someone wanting automatic weight progression calculated for them rather than manually tracking increasesnot Stronger by Science
  • A lifter wanting a plate calculator to avoid mental maths loading a barbellnot Stronger by Science
  • Someone following 5x5 specifically who wants form videos built into the tracking appnot Stronger by Science

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Stronger by Science

  • Limited interactive features compared to competitors with video form coaching

StrongLifts

  • It is built around one specific programme, so once a lifter progresses beyond what 5x5 is designed for and stalls, the app's core structure no longer fits their needs and they typically need a different programme entirely.
  • Full functionality requires a paid subscription, and the free tier is limited enough that serious use of the programme effectively requires paying.
  • It offers little flexibility for customising exercises or set schemes compared with general-purpose workout loggers, since flexibility is not the point of the product.
  • 5x5 as a method is not suited to every body or goal, for example it is not designed for hypertrophy-focused or advanced lifters, and the app does not steer users away from it once it stops being appropriate.
  • Subscription billing continues after a user has outgrown the programme unless actively cancelled, which is a common pattern across fitness app subscriptions generally.

Pricing, plan by plan

Stronger by Science

$10/one-time
  • Program Bundle$10/one-time
    • Multiple programs
    • Spreadsheet templates
    • Auto-regulation

StrongLifts

Free
  • FreeFree
    • Limited programme access and logging
  • StrongLifts Premium$undefined/month
    • Full 5x5 programme access
    • Custom plate settings
    • Expanded workout history and stats

Which should you pick?

Choose Stronger by Science if

  • You need evidence-based programs.
  • You also want auto-regulated training.
Stronger by Science review

Choose StrongLifts if

  • You need 5x5 programme tracking.
  • You want to start without paying.
  • You work on iOS, Android.
  • You also want automatic progression.
StrongLifts review

Questions people ask

Is Stronger by Science or StrongLifts better?
Neither clearly leads. Stronger by Science starts at $10/one-time and StrongLifts at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Stronger by Science or StrongLifts?
StrongLifts has a free tier; the other does not. Paid plans start at $10/one-time for Stronger by Science and Free for StrongLifts.
Does Stronger by Science or StrongLifts run on more platforms?
Stronger by Science runs on Web. StrongLifts runs on iOS, Android.
Can I use StrongLifts for free?
Yes. StrongLifts has a free tier, so you can try it without paying. Stronger by Science starts at $10/one-time.
What is Stronger by Science best used for?
Stronger by Science is most often used for workout tracking, nutrition management, health monitoring, fitness coaching. Of those, workout tracking and nutrition management are not what StrongLifts is typically brought in for.
What can Stronger by Science do that StrongLifts cannot?
Stronger by Science covers Evidence-based programs, Auto-regulated training, Progress tracking, RPE-based progression. StrongLifts covers 5x5 programme tracking, Automatic progression, Plate calculator, Rest timer.

Answered from the vendors’ own pages

Stronger by Science: Does Stronger by Science offer free training content?

Yes. Stronger by Science publishes extensive free articles on strength training, programming, nutrition, and evidence-based training techniques.

Source
StrongLifts: Is StrongLifts free?

There is a free tier with limited access; full programme features require a paid subscription.

StrongLifts: Is this the same as the Strong app?

No, Strong is a general-purpose workout logger for any routine; StrongLifts is built specifically around the 5x5 programme.

StrongLifts: Who is 5x5 suited for?

Primarily beginner to early-intermediate lifters building a strength base; it is not designed as a long-term or advanced programme.

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