Best RPE Trackers for Powerlifting (2026): Apps That Treat @ Notation as First-Class

Rate of Perceived Exertion has quietly become the dominant programming language of modern powerlifting. Mike Tuchscherer popularized RPE-driven autoregulation in the 2010s, Greg Nuckols normalized it for the broader strength community in the late 2010s, and by 2026 most serious powerlifting coaches program in RPE or a hybrid percentage/RPE scheme rather than pure percentages. The reason is simple: RPE adjusts for the days when 80% feels heavier than 85% should, which is most days in a real training cycle.

Most lifting apps know RPE exists. Few treat it as a first-class input. The difference matters in three specific ways: (1) whether @ notation is the primary input rather than a hidden secondary field, (2) whether the app cross-converts between RPE and RIR (Reps in Reserve) — the same concept expressed differently — and (3) whether the app uses your RPE history to suggest deloads or load adjustments. We evaluated five iOS apps on those criteria.

If you want the one-line answer: LiftProof and Boostcamp are essentially tied at the top, with LiftProof winning on @ notation native input and Watch logging, and Boostcamp winning on RPE-programming-template depth. The full picture is below.

Methodology — what we evaluated and how we scored

• RPE-as-default (weight: high). Is RPE the first-class set field, or is it buried behind a tap on a secondary screen? Does the rep entry flow expect an RPE input before letting you finish the set, or treat it as optional metadata?
• @ notation native (weight: high). Does the app render and accept "@ 8" as a legitimate programming target (e.g., "5 reps @ 8") rather than only accepting raw weight prescriptions?
• RIR cross-conversion (weight: medium). Some lifters program in RPE (10 = max, 9 = 1 RIR, 8 = 2 RIR, etc.); others program in RIR directly. Apps that handle both inputs and convert between them reduce friction.
• Auto-deload / load-adjustment triggers (weight: medium). When your average RPE on the same target weight creeps up over three sessions, the app should at minimum surface that fact, ideally suggest a deload week or adjust the load downward.
• Apple Watch logging (weight: medium). RPE entry on a phone screen interrupts your set. Watch logging — especially via Crown or tap-cycle — is meaningfully faster.
• Price (weight: low). Free tier, paid monthly, lifetime where offered.

1. LiftProof — RPE-native by design

Disclosure: we make LiftProof. We rank ourselves #1 on this list because the criteria above honestly support it. Where Boostcamp (#2) beats us is overall RPE-programming-template depth — Boostcamp ships more pre-built RPE-driven programs than we do. Where we beat Boostcamp is on @ notation as the default input and Apple Watch logging.

What it does well. RPE is a first-class set field in LiftProof. The rep entry flow expects an RPE input on every working set; RPE drives the progression algorithm rather than sitting as metadata. "@ 8" parses correctly as a programming target, and the app calculates the expected weight from your recent 1RM and RPE history. RIR is supported as an alternative input — you can program in RIR and the app converts. The Apple Watch app lets you set the RPE via tap or Crown on each set without switching to your phone. Auto-deload suggestion fires when your average RPE on the same target weight has climbed over three sessions. Privacy-first: no account, on-device storage, no third-party SDK.

What it trades away. Our pre-built RPE program library is narrower than Boostcamp's. We ship a small set of opinionated RPE-driven templates (RPE-based linear progression, RPE-driven 4-week wave, Tuchscherer-style RTS framework) but if you want every named RPE program in one place, Boostcamp will have more out of the box. No Android. No cloud sync at v1.0.

Best for: Powerlifters running RPE-driven autoregulated programming, Apple Watch lifters who want to log RPE from their wrist, and lifters who care about data ownership.

2. Boostcamp — deepest RPE-programming library

What it does well. Boostcamp's RPE support is the most mature on this list in terms of programming templates. The app ships RPE-driven programs from multiple well-known coaches and methodologies — Tuchscherer's RTS framework, Greg Nuckols' RPE-based programs, and several powerlifting-specific peaking cycles that use RPE as the load prescription rather than percentages. @ notation is supported throughout. RIR cross-conversion works. The RPE-aware progression algorithms adjust the next session's prescription based on how the current session went.

What it trades away. Boostcamp treats RPE as a programming input layer rather than as the default set field. You can absolutely run an RPE program in Boostcamp, but in a generic non-program-template workout, RPE feels more like an optional field than the default. Apple Watch logging exists but is slower than LiftProof's. Onboarding is the longest on this list. Account required; history in cloud.

Best for: Powerlifters running named RPE programs (RTS, Greg Nuckols, etc.) who want native template support, and intermediate-to-advanced lifters with specific programming preferences.

3. Hevy — RPE supported, not central

What it does well. Hevy has built genuine RPE support over its iteration cycle. RPE entry is available on every set, the field is one tap away from the main entry flow, and recent updates have added RPE trend lines on the analytics screens. For lifters who use RPE casually rather than as the core programming language, Hevy gets you most of what you need.

What it trades away. RPE is one field among several rather than the central input. There is no native @ notation programming — you set weight prescriptions and log RPE after the set, not the other way around. RPE-driven progression is not built into Hevy's algorithm; the app does not adjust future load based on your recent RPE averages. Apple Watch logging exists but is lighter than LiftProof's. Account required.

Best for: Lifters who use RPE as a tracking layer over percentage-based programs but do not program in RPE directly.

4. Caliber — RPE in the context of coached programming

What it does well. Caliber's positioning is different: it pairs lifters with online coaches, and the in-app experience is built around coach-prescribed sessions. Within that framework, RPE is well-supported — the coach can prescribe in RPE, the app accepts RPE input, and the coach reviews your RPE history when adjusting the next block.

What it trades away. Caliber's RPE support assumes a human coach in the loop. For solo lifters running their own RPE-driven programming, the app is overkill — the coaching layer is the product. Pricing reflects this. If you are looking for an RPE tracker, Caliber is not the right primary tool; if you are looking for a coach who programs in RPE, Caliber is the right place.

Best for: Lifters working with an online coach who programs in RPE.

5. Liftin — minimalist RPE for solo lifters

What it does well. Liftin is a small, opinionated solo-lifter app that takes RPE seriously. It is the closest analog on this list to LiftProof's philosophy — privacy-leaning, minimal UI, RPE-aware. For lifters who want a stripped-down RPE logger without the rest of the feature surface, Liftin is worth a look.

What it trades away. Liftin's program library is small. RPE-driven progression is supported but the algorithm is less developed than LiftProof's or Boostcamp's. Apple Watch support is light. Liftin is a quieter app that some lifters love and others find too minimal.

Best for: Solo lifters who want a minimal RPE-aware logger and prefer simplicity over feature depth.

How LiftProof thinks about RPE

We built LiftProof's RPE system around a specific assumption: most lifters who care about RPE care because they have already learned that fixed percentages do not adjust to how the day actually feels. The app should therefore make RPE the path of least resistance — the default input, the field your finger lands on after the last rep, the value the Watch's Crown is bound to. We made specific tradeoffs to keep that focus, including a smaller pre-built RPE program library than Boostcamp's. Read our head-to-head against Hevy for more on the philosophy difference, and our methodology disclosure for how we audit our own rankings.

RPE quick reference — what the numbers actually mean

If you are evaluating RPE trackers and have not used RPE-driven programming before, the scale is short enough to summarize here:

• RPE 10 — Maximum effort. You could not have done another rep at any weight.
• RPE 9.5 — Could not have done another rep; might have moved more weight.
• RPE 9 — 1 rep in reserve (RIR). Could have done one more.
• RPE 8.5 — Between 1 and 2 reps in reserve.
• RPE 8 — 2 reps in reserve.
• RPE 7 — 3 reps in reserve.
• RPE 6 and below — Warm-up or speed work; very submaximal.

Programming targets like "5 reps @ 8" mean "5 reps at an RPE of 8" — a weight that leaves you 2 reps in the tank. An app that supports @ notation natively lets you program "5 @ 8" and calculates the recommended weight from your recent 1RM and RPE history. An app that does not requires you to translate "5 @ 8" into a kilogram or pound prescription yourself before the set.

Common questions when picking an RPE tracker

• What if I do not use RPE on every set? All five apps allow optional RPE entry; the difference is whether RPE drives the next session's prescription. If you use RPE only as a tracking layer over percentage programs, Hevy is sufficient. If RPE drives your programming, LiftProof or Boostcamp are the right choices.
• Does RPE work for hypertrophy training? Yes. RPE 7-8 ranges are the autoregulation language for high-volume hypertrophy work as much as for powerlifting. The same apps work; the programming templates differ.
• What about RIR-only programming? RIR (Reps in Reserve) is the same concept expressed differently. An RPE 8 set is a 2-RIR set. Apps that handle both inputs and convert between them reduce friction for lifters who switch between coaches who program in RIR vs RPE.
• Should I use percentage or RPE? Most modern powerlifting programs blend the two — fixed percentage for top sets, RPE for back-off and accessory work. The right app for you depends on your blend; Boostcamp's program templates handle hybrid prescription natively.

Methodology recap

Six criteria: RPE-as-default, @ notation, RIR cross-conversion, auto-deload triggers, Apple Watch logging, price. Observational scoring from 2026 App Store builds. Quarterly re-review. No paid placement.

Disclaimer

We make LiftProof. We try to evaluate fairly; we rank ourselves #1 only where we can defend it, and we acknowledge Boostcamp's strength on overall RPE programming-template depth. Autoregulation is a tool, not a substitute for sound technique or appropriate recovery — if you are new to barbell training, working with a coach before adopting RPE-driven programming is the safer path. This article is informational, not medical or coaching advice.

Related reading

• Best iOS lifting apps (2026)
• Best 5/3/1 trackers
• Best apps for tracking PRs
• LiftProof vs Hevy on liftproof.app
• LiftProof pricing
• 1RM calculator · Strength standards calculator · Wilks score calculator