Comparison

SBD vs BIG3 Tracker

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

Head to head
About

SBD

This app focuses on tracking your progress for the three main powerlifting exercises: squat, bench press, and deadlift. It automatically calculates estimated 1RM, hypertrophy range, and volume, and logs personal bests. You can also record daily conditions, trained muscles, and notes for supplementary workouts.

Highlights
  • Track squat, bench press, and deadlift
  • Automatic estimated 1RM calculation
  • Automatic personal best logging
  • Record daily condition and notes
  • View progress with calendar and graphs
  • Focus on BIG3 exercises
Features
Read full description

BIG3に集中したい人のための、シンプルな記録アプリです。 スクワット、ベンチプレス、デッドリフト。 この3種目を軸に、無駄なく記録できます。 セットごとの重量と回数をすばやく入力でき、 推定1RM・筋肥大レンジ・ボリュームも自動で算出。 1repで過去最高を超えると、MAXとして自動登録されます。 その日のコンディションや鍛えた部位、メモも残せるので、 BIG3以外の補助トレーニングをした日もジム日として記録できます。 成長はカレンダーとグラフで振り返れます。 総合的なトレーニング管理アプリではありません。 あれこれ機能を詰め込まず、BIG3を中心にした記録に集中できる環境を目指しました。 BIG3を本気で伸ばしたい方に使ってもらえたら嬉しいです。

About

BIG3 Tracker

Features
Read full description

BIG3 Tracker logs the three lifts that matter — squat, bench press and deadlift — and turns them into a picture of how your strength is actually moving. What makes it different: you can log the supplements you're taking on the same timeline, so you can see which stretches of progress line up with what you were on. WHO IT'S FOR - Lifters chasing a bigger squat, bench and deadlift - Anyone who wants progress in numbers and charts, not vibes - People taking supplements who aren't sure whether they're doing anything - Anyone who has started a training notebook and quietly abandoned it WHAT YOU GET Log the big three Record weight x reps for squat, bench and deadlift. Estimated 1RM is calculated for you. Accessory lifts are covered too — around 100 exercises across chest, back, shoulders, arms, legs and core. See your progress Line charts for each of the three lifts, plus your SBD total. Swipe a chart sideways for a month-by-month best. Month-over-month change is worked out automatically. Personal bests, celebrated Beat your total and the app makes a thing of it — which lift went up, and by how much. Share the result as an image if you want to. Supplements on the same timeline The periods you were taking each supplement are drawn over your strength charts, so patterns are easy to spot. Popular supplements See what other lifters are actually logging, ranked by type. Tap through to buy. Rest timer A timer between sets that keeps running and notifies you even if you leave the app. PRICING Every feature is free right now. A NOTE This app is for logging and visualizing your own training. It does not give medical advice. Train at your own discretion and risk. Log the work. Watch it add up.

Screenshots

SBD3 screens
BIG3 Tracker4 screens

Verdict

The call

The clearest difference is update cadence: SBD at every 2 days against BIG3 Tracker's every 4 days. On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

SBD ships an update every 2 days, BIG3 Tracker every 4 days. Both last shipped on October 28, 2026.

Scorecard1 real difference · 8 level
SBD versus BIG3 Tracker: the parameters behind the verdict, then further details
ParameterSBDBIG3 Tracker
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 2 days — betterEvery 4 days
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.015.1 — better
Further details — not scored
Size6 MB21 MB
Age rating4+17+
DeveloperFuchigami Sohtaokito yamakawa

In-app purchases

None

SBD

No in-app purchases

None

BIG3 Tracker

No in-app purchases

Questions

Is SBD free?
SBD is free to download, with no in-app purchases.
Is BIG3 Tracker free?
BIG3 Tracker is free to download, with no in-app purchases.
Do SBD or BIG3 Tracker have ads?
Neither SBD nor BIG3 Tracker shows ads.
Which is updated more often, SBD or BIG3 Tracker?
SBD ships an update every 2 days, and BIG3 Tracker every 4 days. Most recently, SBD was updated on October 28, 2026 and BIG3 Tracker on October 28, 2026.

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