Comparison

Iron Journal vs Brim

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

Head to head
About

Iron Journal

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Iron Journal – For Those Who Lift With Intent Iron Journal is built for athletes who train with purpose. Not a simple set logger. A complete training system designed around how serious lifters actually program, track, and improve. • Train With Structure: Phase-based workouts keep you locked in set by set. No scrolling, no searching — just the next lift, your goals, and your last session set's stats visible in real time right where you need them. • Log Everything That Matters: Weight, reps, RPE, RIR, rest, and set comments captured in seconds. Automatically tracked rest and every detail recorded so nothing is left to memory or guesswork. • Know Exactly How You're Progressing: Compare any two sessions side by side, set by set. Trend data shows weight, reps, exertion, and rest changes over time so you always know if you're moving forward. • Personal Records That Work For You: Strength and endurance PRs tracked automatically and linked to your exercises. Use percentage-based targets to program intelligently off your actual maxes. • Plan Like You Mean It: Build full training blocks with the workout calendar. Schedule deload weeks, max effort days, and recurring sessions across your entire cycle. • Everything Else: Percentage-based weight targets Ā· Muscle group tagging Ā· Mid-session exercise editing Ā· Data export Ā· Imperial and metric Ā· Custom accent colors Ā· One-swipe exercise management

About

Brim

Features
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Creatine is not a painkiller. It does not work on the day you take it — it works by saturation. Your muscle stores fill up over weeks and drain again when you stop. Brim turns that into one number you can actually watch. YOUR SATURATION, NOT A STREAK The number rises on the days you dose and falls on the days you miss, by roughly one to two percent a day. It is not a counter that resets to zero to punish you. It is an estimate of where your muscle creatine actually stands, from a model fitted to the published research — which means a missed day costs you exactly what it costs you, no more. A PLAN BUILT FROM YOUR BODY • A daily dose calculated from your body weight, not a flat scoop line • Standard or loading, with the real trade-off between them spelled out • A projected curve to the day you reach full • Reminders timed to when you actually take it SEE WHAT A BREAK COSTS Progress draws your saturation over time, tells you what a fortnight off would do, and counts the days back to full. Miss a day and you will see it move. That is the entire point. EVIDENCE, GRADED The library answers what people actually ask. Is loading necessary. Does creatine damage your kidneys. Does it cause hair loss. Is it different for women. Is it worth it after fifty. Every article carries a grade — Established, Emerging, Early or Myth — so you can tell a settled question from an open one instead of guessing. QUIET BY DESIGN • A Home Screen widget with today's number • Apple Health reads your weight so the dose stays right as you change; nothing is written back • No account, no sign-up, no email • Your log lives on your iPhone Brim Pro unlocks the full history, the forecast, protocol switching and the complete library. Logging your dose is free, always — a tracker that locks the tracking is not a tracker. Brim Pro is an auto-renewing subscription, offered yearly (with a free trial) or weekly. The price for your region is shown in the app before you buy. Payment is charged to your Apple Account at confirmation of purchase, and the subscription renews automatically unless you turn it off at least 24 hours before the end of the current period. Manage or cancel in Settings › Apple Account › Subscriptions. Terms of Use: https://brim-legal.web.app/terms Privacy Policy: https://brim-legal.web.app/privacy

Screenshots

Iron Journal4 screens
Brim4 screens

Verdict

The call

The clearest difference is in-app purchases: Iron Journal at none against Brim's 5. Iron Journal also leads on iOS requirement (15.2 vs 17.0). Brim's advantage is update cadence (every 4 days vs fortnightly). On price, ads and device support there is nothing between them.

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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Brim sells 5 in-app purchases, starting at $4.99 per 7 days. Iron Journal asks for nothing beyond the download.

UpkeepUpdate frequency

Iron Journal ships an update fortnightly, Brim every 4 days. Both last shipped on October 25, 2026.

Scorecard3 real differences Ā· 3 level
Iron Journal versus Brim: the parameters behind the verdict, then further details
ParameterIron JournalBrim
PriceFreeFree
Update frequencyFortnightlyEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPod — betteriPhone
Requires iOS15.2 — better17.0
Further details — not scored
Size24 MB31 MB
Age rating12+12+
DeveloperJacob MillerAnastassiya Shugaley

In-app purchases

None

Iron Journal

No in-app purchases

5 purchases

Brim

Subscriptions5
  • Brim Pro (Weekly)$4.997 Days
  • Brim Pro Monthly3 Days trial$4.991 Month
  • Brim Pro Monthly1 Month trial$4.991 Month
Show 2 more
  • Brim Pro (Yearly)$29.991 Year
  • Brim Pro (Welcome Offer)1 Year trial$29.991 Year

Questions

Is Iron Journal free?
Iron Journal is free to download, with no in-app purchases.
Is Brim free?
Brim is free to download, with in-app purchases available.
Do Iron Journal or Brim have ads?
Neither Iron Journal nor Brim shows ads.
Which is updated more often, Iron Journal or Brim?
Iron Journal ships an update fortnightly, and Brim every 4 days. Most recently, Iron Journal was updated on October 25, 2026 and Brim on October 25, 2026.

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