Mariabs · Interval Timer vs Ynter

Mari is a sharp, minimal interval timer for anyone who trains in rounds — tabata, HIIT, EMOM, circuits, or your own custom intervals. Set your prepare, work, rest, cycles, blocks, and block-rest durations in seconds. Press the white play button. Mari counts you in, calls out each phase, and chimes the final 3-2-1 of every interval so you can keep your eyes on what you're doing instead of on the screen. WHAT YOU GET • Six adjustable parameters: prepare, work, rest, cycles per block, number of blocks, and rest between blocks • Voice cues for every transition: "Prepare", "Work", "Rest", and "Block complete — get ready for the next" • Distinct musical chimes per phase, generated on-device, synced with light haptics • 3-2-1 countdown ticks before each phase change • Big, monochrome timer dial with a subtle progress ring tinted to the current phase • Cycle and block progress shown at all times so you always know where you are • Plays over your music — Spotify, Apple Music, podcasts — and ducks them only when Mari speaks • Stays awake automatically while a workout is running • Settings remembered between launches DESIGNED TO STAY OUT OF THE WAY The screen is dark, glanceable from across a gym, and built around one button. There are no menus, no levels, no streaks, no badges, no analytics. You configure once, then press play. PRIVACY Mari collects nothing. No account. No email. No analytics. No tracking. Your settings stay on your device. The privacy policy is one page; you can read it before you tap install. NO ADS Mari has no ads, no in-app purchases, and no premium tier. No account required.

Ynter is a free interval timer that speaks the language of LLMs. No subscriptions. No "Pro" tier. No locked screens. Every feature in Ynter is unlocked from the moment you install — including the ones below. If the app earns a spot in your week, an optional tip jar is how you say thanks. That's the whole business model. Bring your own coach: any LLM Ynter reads a simple JSON lesson format. That means you can ask ChatGPT, Claude, Gemini, or any other model to design a workout for you — "give me a 25-minute kettlebell EMOM for shoulders," "build me a beginner yoga flow with long holds" — copy the result, paste it into Ynter, and run it. Your training plans live with you, not behind someone's API key. There's a built-in import sheet with the prompt format ready to go. Hand it to your LLM of choice and you have a tailored workout in under a minute. Built-in lessons to start with Don't want to prompt anything? Ynter ships with ready-to-run routines: • HIIT & Tabata — 45/15, 20/10, classic intervals • Yoga flows — long holds with gentle pacing • Strength sets — work, rest, rounds, done • Quick warm-ups — six minutes when that's all you've got A real editor for custom workouts Prefer to build by hand? The lesson editor lets you set every step's name, work time, rest time, and rounds. Tap any duration to type an exact value on the number pad. Save it, run it, share it. Reps for strength and machine work Not everything is a countdown. Switch a step to reps and Ynter drops the work timer — do the set at your own pace and tap "Done" when you're finished. Only the rest is timed. Perfect for the weight room, on iPhone and Apple Watch. Edit with Apple Intelligence On devices with Apple Intelligence, rewrite a lesson right in the editor: "double all rests," "add a cool-down," "turn this into a 20-minute session." The on-device model rewrites the lesson privately and offline — nothing leaves your device — and you review the result before saving. Live Activity & Dynamic Island Glance at your phone face-down on the bench: current interval, round, and time remaining sit right on the Lock Screen and in the Dynamic Island. No unlock needed. Apple Watch app, included Lessons sync to your wrist. Haptics fire on the Watch. Sessions keep running even if your phone is across the room. iCloud sync across every device Build a lesson on your Mac, run it on your iPhone, finish it on your Watch. Same routines, every screen. Voice cues that respect your music Spoken countdowns ride along on top of whatever you're listening to instead of cutting it. Mute the voice and you still get a bell and a haptic tap. Premium voices supported when installed. iPhone, iPad, Mac, and Apple Watch Built in SwiftUI for every Apple platform you own. What you get — all free: • Paste-in JSON lesson import (works great with any LLM) • Built-in HIIT, Tabata, yoga, and strength lessons • Custom lesson editor with work/rest/rounds — plus rep-based steps and exact number-pad entry • Apple Intelligence lesson editing (on supported devices) • Live Activity & Dynamic Island • Apple Watch app with haptics • iCloud sync across iPhone, iPad, Mac, and Watch • Spoken interval cues with music ducking • Background audio • No ads. No tracking. No subscriptions. No paywalled features. Optional tip jar if you want to support development. Get the workout your AI just designed. Ynter will count.