Comparison

JustGains vs Proof

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

Head to head
About

JustGains

Transform workout ideas into structured training plans. Organize exercises, save routines, and share custom programs with friends or clients. Track progress and refine your fitness journey with this practical tool.

Highlights
  • Create structured workout routines
  • Save and reuse training templates
  • Clone and customize shared programs
  • Share workouts with others
  • Organize exercises, sets, reps, and notes
  • Track workout progress
Features
Read full description

Workout ideas are everywhere. JustGains helps turn them into plans you can actually use. Save routines, structure exercises, clone shared plans, and track the work once the workout starts. JustGains is built for lifters, creators, and coaches who want better ways to organize and share training. Use JustGains to: - Turn workout ideas into structured routines - Save templates for repeat training - Clone and customize shared programs - Share workouts with friends, clients, or the community - Keep exercises, sets, reps, rest, and notes organized - Track progress after starting a plan JustGains makes sharing practical: not just inspiration, but workouts you can follow and improve. Download JustGains and turn your next routine into a real training plan.

About

Proof

This app helps you meticulously log your weightlifting sets and track your progress. It automatically detects personal records and provides insights into your training patterns without offering coaching or social features.

Highlights
  • Log sets in two taps
  • Full history for every lift
  • Automatic personal record detection
  • Muscle training body map
  • Training pattern insights
  • Rest timer with Dynamic Island/Lock Screen support
Features
Read full description

Proof is a lifting log for people who want a record, not a coach. Most fitness apps tell you what to do. Proof measures what you did, every set, and shows you whether you beat last time. WHAT IT DOES - Log a set in two taps. Weight, reps, done. - Every lift keeps its full history. Nothing is capped or hidden. - Personal records are detected automatically and sealed the moment you hit them. - A body map shows which muscles you have trained hard and which you have skipped. - Patterns surface the honest stuff: your best day, your steadiest day, where you stall. - A rest timer that runs in the Dynamic Island and on the Lock Screen. WHAT IT DOES NOT DO - No subscription. Pay once, keep it forever. - No account. Nothing to sign up for. - No cloud. Your training stays on your phone. - No ads, no feed, no streak guilt. FREE AND PAID Log as much as you want for free, and the last 30 days are always open. A one-time unlock opens your full history, the body map over time, and every record back to day one. Built by one person who lifts and wanted an honest instrument, not another coach. Log your lifts. Beat last time.

Screenshots

JustGains4 screens
Proof4 screens

Verdict

The call

The clearest difference is in-app purchases: Proof at none against JustGains's 4. Proof also leads on update cadence (every 2 days vs every 5 days) and device support (4 vs 2). JustGains's advantage is ratings volume (28 vs 4). On price, rating, review sentiment and ads 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. JustGains sells 4 in-app purchases, starting at $9.99 per month. Proof asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for JustGains against 5.0 for Proof. That said, the two scores are not equally well evidenced: JustGains has 28 ratings behind it against 4, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

JustGains ships an update every 5 days, Proof every 2 days. Both last shipped on November 5, 2026.

Scorecard4 real differences · 6 level
JustGains versus Proof: the parameters behind the verdict, then further details
ParameterJustGainsProof
PriceFreeFree
Rating4.9 (28 ratings)5.0 (4 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings28 — better4
Update frequencyEvery 5 daysEvery 2 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, Apple WatchiPhone, iPad, iPod, Apple Watch — better
Requires iOS16.415.0 — better
Further details — not scored
Size222 MB31 MB
Age rating4+4+
DeveloperJames GreeneSerafin Vazquez

Customer experience

JustGains

All ratings26 ratings
Positive96.2%
Neutral0.0%
Negative3.8%
Written reviews14 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Proof

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

JustGains

Subscriptions4
  • JustGains Pro Monthly3 Days trial$9.991 Month
  • JustGains Pro Monthly$9.991 Month
  • JustGains Pro Yearly3 Days trial$79.991 Year
Show 1 more
  • JustGains Pro Yearly$79.991 Year
None

Proof

No in-app purchases

Questions

Is JustGains free?
JustGains is free to download, with in-app purchases available.
Is Proof free?
Proof is free to download, with no in-app purchases.
Which has better reviews, JustGains or Proof?
Proof is rated higher. JustGains averages 4.9 out of 5 from 28 ratings, while Proof averages 5.0 from 4 ratings.
Do JustGains or Proof have ads?
Neither JustGains nor Proof shows ads.
Which is updated more often, JustGains or Proof?
JustGains ships an update every 5 days, and Proof every 2 days. Most recently, JustGains was updated on November 5, 2026 and Proof on November 5, 2026.

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