Comparison

IronLog vs Proof

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

Head to head
About

IronLog

This app helps lifters track personal records and training progress with a focused logging system. It offers tools like a plate calculator and rest timer, with features for organizing movements and visualizing training trends.

Highlights
  • Log personal records quickly
  • Organize and add custom movements
  • Celebrate new PRs
  • Built-in plate calculator
  • Focused rest timer
  • Track advanced set types
  • View training calendar and trends
Features
Read full description

Know what you lifted. See what comes next. IronLog is a focused strength-training log for sets, personal records and routines. No account, no ads. WHAT'S FREE • Log workouts, sets and personal records, and review your history • Up to four custom routines. Delete one to free a slot; routines you have already saved stay usable • A bundled exercise library, plus your own custom movements • Rest timer, plate calculator and estimated one-rep max • Supersets, circuits, giant sets and drop sets • RPE and notes on your sets • Starter programs and ready-made workouts, with optional PR-based starting weights • Next-target and plateau suggestions • Training calendar and basic trends • CSV import, and CSV export of your exercise records, in Settings • Delete individual workouts and records from History The free tier has no time limit and needs no account. LIFETIME PRO: ONE-TIME PURCHASE Core workout logging, history, up to four custom routines, calculator, and timer stay free. Lifetime Pro unlocks only unlimited custom routines, advanced analytics, Pro Coach, and reusable advanced templates. Everything Lifetime Pro adds: • Unlimited custom routines: save a fifth routine and beyond • Advanced analytics: a trend of the personal records you log for the exercise you record most, over 3 months, 6 months, 1 year or all time; a 12-week volume heatmap; and a breakdown of your training by exercise category • Pro Coach: choose a training phase, review one exercise's last 7 days (sessions, volume and your average logged RPE), and get week-over-week volume and deload suggestions for it. On each exercise's detail screen, Pro Coach also adds a trend analysis of your recent records with next-step suggestions • Reusable advanced templates (Pro Quick Starts): start a curated preset as one combined session, or save it as your own reusable routine. The day-by-day starter programs stay free Lifetime Pro is a single in-app purchase that unlocks the Pro features listed above for the life of the app. It does not renew and is not a subscription. The App Store shows the price in your currency before you buy, and Restore Purchases is in the app. IronLog is a training log, not medical advice. Estimated one-rep max values are estimates; choose weights that suit your experience. Terms of Use (Apple standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ IronLog terms: https://ironlog.co/terms/

About

Proof

This app helps you meticulously log your weightlifting sets and track personal records. It automatically detects and saves your achievements, providing insights into your training patterns and muscle engagement. Enjoy a clean, ad-free experience with no subscriptions or cloud syncing.

Highlights
  • Log sets in two taps
  • Full lift history
  • Automatic personal record detection
  • Muscle training body map
  • Training pattern analysis
  • Rest timer with Dynamic Island 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

IronLog4 screens
Proof4 screens

Verdict

The call

The clearest difference is update cadence: Proof at every 4 days against IronLog's every 3 weeks. Proof also leads on iOS requirement (15.0 vs 18.0). IronLog's advantage is monetization model (free vs free with in-app purchases). On price, rating, review sentiment and ratings volume 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. IronLog sells 3 in-app purchases, starting at $3.99 per month and Proof sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for IronLog against 5.0 for Proof. Both are backed by a comparable volume of ratings — 5 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

IronLog ships an update every 3 weeks, Proof every 4 days. The most recent releases landed on October 31, 2026 and October 29, 2026 respectively.

Scorecard3 real differences · 7 level
IronLog versus Proof: the parameters behind the verdict, then further details
ParameterIronLogProof
PriceFreeFree
Rating5.0 (5 ratings)5.0 (4 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings5 — better4
Update frequencyEvery 3 weeksEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod, Apple Watch — better
Requires iOS18.015.0 — better
Further details — not scored
Size39 MB26 MB
Age rating4+4+
DeveloperGustavo Payano VasquezSerafin Vazquez

Customer experience

IronLog

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 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

3 purchases

IronLog

Subscriptions2
  • IronLog Pro Monthly$3.991 Month
  • IronLog Pro Annual7 Days trial$24.991 Year
One-time1
  • Lifetime Pro$69.99
1 purchases

Proof

One-time1
  • Full Instrument$19.99

Questions

Is IronLog free?
IronLog is free to download, with in-app purchases available.
Is Proof free?
Proof is free to download, with in-app purchases available.
Which has better reviews, IronLog or Proof?
IronLog and Proof are both rated 5.0 out of 5 on the App Store, from 5 and 4 ratings respectively.
Do IronLog or Proof have ads?
Neither IronLog nor Proof shows ads.
Which is updated more often, IronLog or Proof?
IronLog ships an update every 3 weeks, and Proof every 4 days. Most recently, IronLog was updated on October 31, 2026 and Proof on October 29, 2026.

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