Caliber app review

Caliber next to the two apps people weigh it against

Caliber is the pick if you'll pay for a coach; its free app is a good logger but leaves every weight to you. If you train alone and want the next weight set for you, RIRLift does that free.

What to weigh before you pick a Caliber tier

• Free is a logger, and a good one

  Caliber's free app logs unlimited workouts, shows step-by-step tutorials for 800+ exercises and lets you train in private Workout Circles with friends. Its ChatGPT and Claude connection is in the free version too.

• Plus is plans and scores

  Caliber Plus adds 120+ coach-designed plans by goal, level and schedule, Strength Score and Strength Balance, nutrition targets, custom exercises and supersets, and exercise swaps. It's $12 a month or $72 a year in the US.

• Premium is a real coach

  A dedicated 1:1 coach builds your training and nutrition plan, reviews your form on video and checks your progress every week. Caliber prices it from about $200 a month, with a 30-day money-back guarantee. Caliber Pro, a team-coaching tier, sits in between.

• The next weight is still your call

  Caliber's Last button fills in the weight and reps from last time. The app doesn't suggest weights, so on the free and Plus tiers, deciding when to add weight is up to you.

• Where RIRLift differs

  RIRLift logs load, reps and reps in reserve, then sets the next set and the next session from them, free, on iPhone and Apple Watch. How it decides.

  

Caliber in two real situations

Eight months on Caliber's free app, deciding what to pay for

Lifts four days a week at a commercial gym, follows a Caliber plan, and keeps adding weight by guesswork. Has an Apple Watch, no budget set yet.

App	What it does here	For this lifter
Caliber free	Keeps logging the plan. Last fills in the previous numbers, and adding weight stays a guess.	Fine if the guessing works for you.
Caliber Plus	Adds 120+ plans, Strength Score and Strength Balance, for $12 a month.	Better plans, but the next weight is still yours to pick.
Caliber Premium	A coach writes the plan, sets targets, reviews form videos and checks in weekly, from about $200 a month.	The best fit if form and accountability are the problem.
RIRLift	Sets the next weight after every set from load, reps and reps left, on the iPhone and the Watch. Free.	The fit if picking weights is the only problem.

Pay Caliber for a person. If what you need is the weight decided, that part doesn't need a subscription.

Pull day, numbers that used to come from the Last button

The same lifter's back day, logged in RIRLift instead. The underhand barbell row is at 135 lb, aiming for 10 reps with 2 left.

Exercise	You logged	Next session	Why
Underhand Barbell Row	Set 1: 135 lb × 10, 4 left	Set 2: 140 lb × 10	14 reps to failure against a planned 12, so 135 × 43 ÷ 41 ≈ 142 lb, loaded as 140 lb.
Preacher Curl	70 lb, 12 / 12 / 12 reps, 2 left	75 lb × 8	Every set at the top of 8–12: one 5 lb step, reps back to 8.

The row went up mid-session and the curl went up for next time, without a guess.

Plans for a Caliber lifter training on their own

• The best workout plan for muscle gain, for where you are now

  New to lifting, 3 gym days a week

  Three gym days for the first six months of lifting.

  3× a week · 44 sets a week · ~50 min

  Add to RIRLift

  Add to RIRLift

  Scan with your iPhone camera to add this plan.

  See the plan

• The best workout routine for the days you can train

  4 days a week: upper/lower

  Four days, like the lifter in the example, on RIRLift's 4 free routines.

  4× a week · 68 sets a week · ~40 min

  Add to RIRLift

  Add to RIRLift

  Scan with your iPhone camera to add this plan.

  See the plan

Make it fit you

• Start your lifts from one honest set

  RIRLift can't read Caliber's history. On each lift, the first set is a max-reps set at a light starting weight, and every weight after it comes from what you did.

• Or type your Caliber numbers in

  Set the weight yourself on any lift you know well. It's marked Yours, and progression carries on from your number.

• Keep the rep ranges you're used to

  Set each exercise's rep range and reps-in-reserve target to match your Caliber plan, and the weights follow those rules.

• Log from your Watch

  Caliber has no Apple Watch app. In RIRLift you can log sets, run the rest timer and see the next weight on your wrist.

When a different app fits better

• You want a person checking your form and your week. Caliber Premium. RIRLift has no human coach.
• You want nutrition targets with your training. Caliber Plus or Premium. RIRLift doesn't track nutrition.
• You train on Android, or with friends in a group chat. Caliber, with Android and Workout Circles. RIRLift is iPhone only.

Questions

Read next

• Caliber vs Fitbod

  A coach and plans, or an app that builds every session.

• Caliber vs Hevy

  Two free loggers, compared tier by tier.

• The best personal trainer apps

  Caliber next to Future and trainwell.

• How RIRLift picks your next weight

  Where the 140 lb row came from.

• Free workout tracker apps

  Free tiers compared.

More ways lifters use RIRLift

• The progressive overload app that decides your next weight

  Next weight and rep target set from your weakest set, corrected between sets, with stalls caught early.

• The AI workout planner that keeps planning after day one

  A plan built for your goal, gym and week, with every weight set from what you actually lifted.

• The gym tracker that turns your logs into your next weight

  Bring your old logs, chart every lift, and see a stall answered before it eats another month.

Every lifter and goal