Comparison

AI Apnea Trainer vs ELEMENT | 08

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

AI Apnea Trainer

Features
Read full description

For freedivers, spearfishermen, and all athletes who want to control their autonomic nervous system to enhance performance. AI Apnea Trainer uses the practical disciplines of freediving training to transform your daily practice into a steady, visualized journey of growth. [ Key Features ] โ–  Intuitive Dashboard & Modern Navigation (New) - Completely redesigned Home dashboard and Logbook. Review your daily progress and performance trends more beautifully and intuitively than ever. โ–  Dry Apnea Training Comprehensive support for dry training, from planning and execution to AI-driven menu updates. - Unlimited Table Creation (O2 / CO2, NC, etc.): Create and save unlimited custom tables tailored to your goals, building an unshakeable training plan. - MAX HOLD Mode: Test your personal best and understand your current limits. Records and supports the full breath-hold cycle from Breathe-up to Recovery. - NC Mode (No Contraction Mode): Build CO2 tolerance through repeated sub-maximal holds that stop before the contraction threshold. Accumulating rounds without contractions safely adapts your body to CO2 and gradually extends your pre-contraction time. - AI Coaching: Analyzes your session history and perceived exertion to suggest the optimal next training load โ€” fostering steady growth without rushing your progress. - Absolute Immersion with Audio Cues: Clear audio leads your session so you never need to look at the screen โ€” supporting fully eyes-closed training with smart background playback. - Live Activities: Track your current phase and remaining time in real-time right from your Lock Screen or Dynamic Island. - Apple Watch Sync & Haptic Guide: Syncs in real-time with your iPhone to record heart rate during sessions. Wrist vibrations notify you of phase transitions, so you can stay completely relaxed and immersed. โ–  Ocean Logs & Advanced Visualization - Ocean Log Import: Supports .fit, .uddf, and .xml logs. Import directly from your dive computer apps via Share Sheet for seamless visualization. - Analytics & Dive Comparison: Profile charts for depth, heart rate, and descent velocity. Compare past dives with marine conditions (weather, tides) to plan your next session. - Dive Bookmarks: Bookmark important dives or personal bests for instant access. - AI Coach Dive Analysis: After each logged dive, the AI Coach automatically generates a personalized coaching comment โ€” highlighting what went well and flagging any risk points in your profile. - Dive Stamp & Social Share: Create stylish dive stamp images from your log data and share them directly to Instagram Stories or any social platform. Customize style, color, and discipline to make every dive memorable. [ Who is this for? ] - Freedivers looking to extend their dive time and build mental discipline. - Spearfishermen wanting to improve silence and efficiency underwater. - Athletes mastering autonomic nervous system control through breathing techniques. - Anyone who wants to make meditation and breath-hold training an unshakeable habit. [ Important Safety Warnings ] - Freediving and breath-hold training carry risks such as blackouts (loss of consciousness). - Never practice alone in the water: Always have a buddy when practicing breath-holding at the surface. - Ensure a safe environment: When doing dry training, always practice sitting or lying down on a soft surface like a sofa or bed to prevent falls and injuries. - Take professional courses: This app is a training tool and NOT a substitute for proper education. We strongly recommend seeking instruction from knowledgeable and experienced freedivers. - Never push beyond your limits. If you feel dizzy or unwell, stop immediately. By downloading this app, you acknowledge and agree that you assume full responsibility for your own safety and health during training. Your deep self-understanding expands your potential. Elevate your daily routine to a deeper, quieter dimension with AI Apnea Trainer.

About

ELEMENT | 08

Features
Read full description

ELEMENT | 08 is a training, logging and analysis system for freedivers. TRAIN WITH INTENTION Build custom Static and Breathwork tables with CO2 and O2 progressions, custom rest, hold, and recover blocks, and full audio announcements. Follow structured progressions toward new breath-hold times, or build a full Season Plan with periodized phases for depth and pool competition prep. YOUR DIVE LOG, PROPERLY DONE Sessions save automatically. Log dives by hand or import them from your dive computer (Garmin and Suunto FIT, UDDF, and more), keeping your full training history in one place. INSIGHTS THAT MATTER Long-term trends across breath hold, equalization, and dive data. Depth bands, SpO2 exposure zones, mouthfill factor, and more. Connect a Bluetooth pulse oximeter for live SpO2, heart rate, and detailed post-session analysis. ASK ABOUT YOUR DIVING A built-in AI assistant answers questions about your own logged data in plain language. Ask how your depth is trending, compare two dives, or dig into a single session, and get answers grounded in your real numbers, with charts drawn right on your device. Only your question and the summary figures needed to answer it are sent to generate the response. Your raw dive logs, full profiles, and location never leave your device. SHARE YOUR DIVES Turn a depth dive into a Dive Reel: an animated overlay of your depth, time, and stats, on your own footage or a clean background. Pick a template, line it up with your clip, and export a video made for stories and reels. TRAIN WITH YOUR COACH Coach Mode links you and your coach. Pair with a code, receive training plans that land straight in your Today view, and share your logged dives so your coach can follow your progress. BUILT FOR FREEDIVERS, BY A FREEDIVER Local-first by default: your data lives on your device. Create an optional account to back it up to the cloud and restore it on a new phone. The core app is free, with no subscription required to train seriously. TRAIN SAFELY Breath-hold training carries real risks. Never train in or near water without a trained buddy supervising you directly, and never alone. ELEMENT | 08 supports your training. It does not replace certified instruction or medical advice. More at element08.io Terms of Use: https://element08.io/terms.html

Screenshots

AI Apnea Trainer4 screens
ELEMENT | 084 screens

Verdict

The call

The clearest difference is in-app purchases: AI Apnea Trainer at none against ELEMENT | 08's 10. ELEMENT | 08's advantage is device support (4 vs 2) and iOS requirement (15.1 vs 17.0). On price, update cadence and ads there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. ELEMENT | 08 sells 10 in-app purchases, starting at $3.99 per month. AI Apnea Trainer asks for nothing beyond the download.

UpkeepUpdate frequency

AI Apnea Trainer ships an update every 11 days, ELEMENT | 08 weekly. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.

Scorecard3 real differences ยท 3 level
AI Apnea Trainer versus ELEMENT | 08: the parameters behind the verdict, then further details
ParameterAI Apnea TrainerELEMENT | 08
PriceFreeFree
Update frequencyEvery 11 daysWeekly โ€” better
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, Apple WatchiPhone, iPad, iPod, Apple Watch โ€” better
Requires iOS17.015.1 โ€” better
Further details โ€” not scored
Size18 MB70 MB
Age rating4+12+
Developerhayato yasuhisaPhilipp Heinzelmann

In-app purchases

None

AI Apnea Trainer

No in-app purchases

10 purchases

ELEMENT | 08

Subscriptions6
  • Monthly Pro$3.991 Month
  • AI Assistant Add-on (Monthly)$4.991 Month
  • AI Assistant Add-on (Loyalty)$12.991 Year
Show 3 more
  • Season Pro$14.991 Year
  • ELEMENT 08 Pro (Annual)$22.991 Year
  • AI Assistant Add-on (Annual)$49.991 Year
One-time4
  • Lifetime Founder$29.99
  • lifetime_early$39.99
  • Lifetime Regular$59.99
Show 1 more
  • ELEMENT 08 Lifetime$59.99

Questions

Is AI Apnea Trainer free?
AI Apnea Trainer is free to download, with no in-app purchases.
Is ELEMENT | 08 free?
ELEMENT | 08 is free to download, with in-app purchases available.
Do AI Apnea Trainer or ELEMENT | 08 have ads?
Neither AI Apnea Trainer nor ELEMENT | 08 shows ads.
Which is updated more often, AI Apnea Trainer or ELEMENT | 08?
AI Apnea Trainer ships an update every 11 days, and ELEMENT | 08 weekly. Most recently, AI Apnea Trainer was updated on October 15, 2026 and ELEMENT | 08 on October 7, 2026.

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