Switching from Hevy to Iridium

Hevy is a genuinely good workout tracker. Clean interface, solid logging, and a social feed that makes the gym feel a little less solitary. If you've been using it, you probably appreciate how straightforward it is to log sets and share workouts with friends.

But if you're searching for a Hevy alternative, something probably isn't clicking. Maybe you've outgrown the template-based approach. Maybe you want your app to do more than record what happened — you want it to tell you what should happen next. Maybe you've hit a plateau and need smarter tools to break through it.

Whatever the reason, this is an honest comparison. We'll cover what each app does well, where they genuinely differ, and how to make the transition if you decide to switch.

Why People Look for a Hevy Alternative

Based on feedback from lifters who've made the switch, these themes come up consistently:

• No AI workout generation — Hevy is a logger, not a programmer. You build your own routines or copy someone else's. If you want an app that creates intelligent, personalized workouts based on your history and recovery, Hevy doesn't do that.
• No volume science framework — There's no way to see whether your weekly volume per muscle group is in the optimal zone, too low, or pushing into overtraining territory. You're tracking sets, but you're not getting insight into what those numbers mean.
• No recovery-based adaptation — Hevy doesn't factor in biometric data like HRV, sleep quality, or resting heart rate. Every session starts from the same baseline regardless of how recovered you are.
• No mid-workout intelligence — Once you start a Hevy routine, the targets are fixed. If your first few sets feel heavy or easy, the app doesn't adjust remaining sets accordingly.
• Social features aren't enough — The social feed is engaging early on, but it doesn't make your training better. At some point, you need tools that optimize your programming, not just broadcast it.

None of these are dealbreakers for casual lifters. But if you're an intermediate or advanced trainee looking for tools that actively improve your training, these gaps compound over time.

Hevy vs Iridium: Feature Comparison

Here's a side-by-side look at how the two apps stack up:

Where Hevy Shines

Credit where it's due. Hevy does several things well:

• Social community — If training with friends or following other lifters motivates you, Hevy's social feed is a genuine differentiator. You can share workouts, follow friends, and see what others are doing. Iridium doesn't have social features.
• Simplicity — Hevy's logging is clean and fast. There's minimal cognitive overhead — open the app, pick a routine, log your sets. If you already know exactly what you're doing and just need a digital notepad, it works well.
• Free tier — Hevy offers a usable free version. If cost is a primary concern and you don't need advanced features, the free tier covers the basics.
• Routine sharing — The ability to share and import routines from other users is useful if you want to follow a specific program someone else built.

If these are your top priorities — social connection, simplicity, and a free option — Hevy is a solid app. Don't switch just for the sake of switching. Switch because you need tools your current app can't provide.

Where Iridium Goes Further

The comparison table gives you the overview. Here's where the differences matter in practice.

AI That Programs Your Training

The fundamental difference: Hevy records what you did. Iridium tells you what to do and adapts it in real time.

When you open Iridium's Smart Workout Planner, the AI recommends what to train today based on your recovery status, training history, and weekly schedule. It selects exercises based on your gym's equipment, organizes them into blocks (standard sets, supersets, or circuits), and assigns specific weight targets, rep ranges, RPE targets, and rest periods for every set.

This isn't a template you follow blindly. The AI factors in your training methodology — whether you prefer progressive overload, reverse pyramid, high volume, or another approach — and adjusts accordingly. You can write Custom AI Instructions like "prioritize barbell compounds" or "superset antagonist pairs to save time," and the AI respects those preferences every session.

The Special Request field lets you make one-off adjustments without changing your defaults: "only 30 minutes today," "extra shoulder work," "keep it light — rough sleep." The AI integrates the request while staying consistent with your overall programming.

For a deeper look at how AI training works, check out our piece on how AI workout apps are changing strength training.

Training Volume You Can Actually See

This is where the practical difference becomes most obvious. In Hevy, you can see how many sets you did. In Iridium, you can see whether those sets are actually driving growth.

Iridium maps your weekly volume per muscle group against evidence-based volume landmarks — MEV, MAV, and MRV. A color-coded progress bar for each muscle group tells you exactly where you stand:

• Red — below maintenance volume (losing ground)
• Orange — maintenance only (holding steady, not growing)
• Green — the optimal growth zone (MEV to MAV)
• Blue — high volume, pushing recovery limits (MAV to MRV)

This answers the question every intermediate lifter asks: "Am I doing enough? Am I doing too much?" Instead of guessing, you see exactly where each muscle group stands. The AI uses these same landmarks when generating workouts, so your programming stays in the optimal zone automatically.

Recovery Intelligence

Hevy doesn't track recovery. You train when you feel like it and hope you're not overdoing it.

Iridium builds a daily Readiness Score (0–100) using actual biometric data from Apple Health — heart rate variability, sleep quality and duration, resting heart rate trends, and per-muscle fatigue levels with estimated recovery timelines.

The AI uses this score to calibrate workout intensity. High readiness means heavier weights and more volume. Low readiness means the AI scales back — lighter loads, reduced volume, or a focus on less-fatigued muscle groups. You can learn more about recovery-driven training in our muscle recovery tracking guide.

Mid-Workout Adaptation

In Hevy, if your first set of bench press moves like a warm-up or feels like a max attempt, you manually adjust everything that follows. In Iridium, the Real-Time AI Set Analysis watches how your sets compare to targets and adjusts remaining sets automatically.

Crushed your first set at RPE 6 when it was supposed to be RPE 8? The AI bumps up the weight for your next sets. Grinding at RPE 9 on what should've been RPE 7? It scales back. You can have adjustments auto-applied or review them manually — either way, every set is calibrated to how you're actually performing, not how you were expected to perform.

How to Switch from Hevy

If you've decided to make the move, here's how to set yourself up for a smooth transition.

Step 1: Note Your Key Numbers

Before switching, write down your current working weights and rep ranges for your main lifts. Iridium's AI will use this data to calibrate your first workouts. The numbers that matter most:

• Working weights for compound lifts (squat, bench, deadlift, overhead press, rows)
• Typical rep ranges for your main exercises
• Your current training split and weekly frequency

Step 2: Configure Your Training Profile

Take five minutes to set up properly:

1. Training goal — Strength, hypertrophy, competitive powerlifting, or general fitness
2. Experience level — Beginner, intermediate, or advanced
3. Training split — Pick a preset or describe your own custom split in plain text
4. Methodology — Progressive overload, reverse pyramid, high volume, rest-pause, supersets, or traditional
5. Workout duration — Your typical session length (30–90 minutes)
6. Custom Instructions — Any standing preferences: "I prefer dumbbells for pressing movements," "always include face pulls," "keep rest periods under 2 minutes"

Step 3: Set Up Your Gym

Add your gym with its equipment. You can toggle equipment manually or use Iridium's AI video equipment detection — record a quick walkthrough of your gym, and the AI identifies available equipment automatically.

If you train at multiple locations, create a gym profile for each. The AI constrains exercise selection to whatever equipment is available at your selected gym.

Step 4: Generate Your First Workout

Open the Smart Workout Planner and let the AI recommend a session. Review the exercise selection, weights, and rep targets. They'll be conservative initially — the AI gets smarter with every session you log.

During your first few workouts, be especially attentive to RPE ratings. The AI uses these to calibrate load recommendations going forward. Honest RPE reporting from the start means more accurate programming within a week.

Your First Week on Iridium

Days 1–2: Workouts will be reasonable but conservative. The AI doesn't have your full history yet, so it errs on the side of caution. Use this as a chance to get comfortable with the interface and log accurate RPE ratings.

Days 3–5: The real-time set analysis starts making noticeable adjustments. You'll see the AI bumping weights up or down based on your actual performance. The volume tracking dashboard starts showing meaningful data about your weekly volume distribution.

End of Week 1: Your Weekly Trainer Analysis — an AI-generated review of your training patterns and volume distribution — gives you a snapshot of where things stand and what to focus on next.

Make the Switch

If you've hit the ceiling of what a logging app can do for you, it's time for a tool that thinks alongside you. Iridium doesn't just record your training — it programs it, adapts it in real time, and optimizes your volume based on actual recovery data.

Download Iridium and see what intelligent training feels like.