This app consolidates multiple workout timers and a comprehensive exercise library into a single platform. It offers AI-powered movement substitutions and personalized post-workout feedback to enhance training.
1.2
May 14, 2026
v1.2 — A big one. NEW - Klock Sub AI: ranked movement substitutions with RX EQUIVALENT and CLOSE MATCH scoring - KLOCKRX feedback: paste any workout, regenerate the timer if it's not quite right - Hero WOD library: Murph, DT, Kalsu, and 30+ tribute workouts with the story behind each - Memorial Day banner on Murph all month - Tone Pitch picker (Soft / Balanced / Sharp) — pick the timer character that fits your gym - BELL sound style: a true chime profile, distinct from the gym-timer beep - Tools menu redesigned — Plate Calculator, Rep Max, Body Weight %, Tempo, Wendler 5/3/1, Pace Converter, Max Heart Rate - Tempo timer for strength work - Wendler 5/3/1 calculator with full warm-up cycle FIXES - Round counting fixed across every timer mode: pressing Stop now counts the round you were in. Final-round advance buttons read FINISH and end the workout cleanly. - Save flow rewritten: short workouts now confirm before saving, no more black screen on Murph stop - Multi-piece timers (KLOCKMATCH, MURPH, HYROX) now record both halves on partial rounds - Hold-to-confirm STOP prevents accidental workout drops - Sticky button breathing room above the home indicator on every timer mode - Klock Sub AI score pill contrast fixed (RX EQUIVALENT now readable) - Klock Sub AI is faster and more reliable — tighter model, prompt caching, automatic fallback when the primary model can't find good subs - KLOCKRX now recognizes stopwatch and open-ended workouts and routes to the Stopwatch mode - App icon brand mark restored - Settings reorganized: Profile / Support / Privacy / Legal / Data Thanks for the bug reports. Keep them coming.
MoreUnlimited access to all features
Klock-In is a smart workout timer app designed to consolidate various timer functions and a large exercise library into one place. It aims to streamline the workout experience for athletes.
Klock-In supports a wide range of workout types including EMOM, AMRAP, For Time, Tabata, HYROX, Death By, Stopwatch, Round Counter, KLOCKMATCH, Tempo, and Wendler 5/3/1.
Yes, Klock-In features KLOCKRX which can read and build timers from pasted text or photos of workouts, including complex schemes like multi-rounds and 21-15-9.
Klock-In includes Klock Sub AI, which provides AI-powered movement substitutions on the fly. You can specify the reason for the swap and receive ranked alternatives with RX EQUIVALENT or CLOSE MATCH scores.
After each workout, Klock-In's coach reviews your splits, pacing, and effort to provide specific feedback. You can regenerate the feedback if you desire a different perspective.
Klock-In Pro unlocks unlimited Klock Sub AI usage, unlimited KLOCKRX parsing, coach feedback on every workout, access to the full Hero WOD library, cloud sync across devices, and custom workout history.
Klock-In Pro is available as an auto-renewing subscription. The monthly plan costs $1.99 per month, and the annual plan is $14.99 per year.
Subscriptions are managed and can be cancelled anytime in your iOS Settings under your name → Subscriptions. Cancellations must be made at least 24 hours before the current period ends to avoid automatic renewal.