00 vs AccelIntel
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
00
This workout tool allows you to create custom exercise routines with timers, reminders, and notes. Track your progress by saving sessions and viewing your improvements over time. It's a free, personal project designed for users who know their own exercises.
- Customizable exercise display
- Metronome and reminder setup
- Exercise tagging and notes
- Create sets and routines
- Save and track session progress
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00:37 is a workout tool. important notes: - the app doesn't contain any exercises or routines. add and do exercises you know how to do properly. 00:37 does not replace a mentor or classes. - the app is a side project, mostly designed for personal use, made available for free. I may update it occasionally, but don't expect regular updates or convenient features. I may also remove features that don't work for me or change things in ways you may not like; that's part of the deal here. features: - 5 types of exercises display time, repetitions, or amounts in different ways. - add a metronome, setup time, reminder sounds, tags, and notes to your exercises. - create sets and routines of exercises. - save your sessions so you can see how you progress. tip: - you are less likely to miss a timer, break, or reminder by going to Settings > Notifications > 00:37 and setting the notification style to 'Persistent'.
AccelIntel
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Capture bar speed with Apple Watch and turn your strength workouts into actionable velocity-based training data. AccelIntel is a VBT app for athletes, sprinters, lifters, and coaches who want to train with clearer intent. Measure lifting velocity on Apple Watch, then review rep-by-rep bar speed, velocity loss, fatigue, training zones, and progress on iPhone. Traditional strength tracking tells you how much weight you lifted and how many reps you completed. Velocity-based training adds critical context: how fast you moved the load, whether speed declined during the set, and whether the work matched the goal of the workout. For speed-based athletes, that matters. Different loads and bar velocities can emphasize different qualities, including maximum strength, strength-speed, speed-strength, starting strength, and explosive power. AccelIntel helps connect weight-room training to the qualities that support acceleration, sprint performance, and athletic speed. CAPTURE BAR SPEED WITH APPLE WATCH Use Apple Watch motion tracking to record lifting velocity during barbell strength workouts without buying a separate bar-speed sensor. REVIEW WORKOUTS ON IPHONE Analyze completed workouts with detailed rep, set, exercise, and session data. See how each set performed instead of relying only on weight and reps. TRACK REP-BY-REP VELOCITY Review mean velocity, peak velocity, and time to peak velocity for individual reps. Compare rep quality within a set and across workouts. MEASURE VELOCITY LOSS See how much bar speed declines during a set. Use velocity-loss feedback to understand fatigue, manage effort, and avoid turning speed-focused work into conditioning. TRAIN IN VBT ZONES Use velocity-based training zones for different goals, including maximum strength, strength-speed, speed-strength, and power-focused work. BUILD A LOAD–VELOCITY PROFILE Perform load testing across multiple weights to understand how bar speed changes as load increases. Use your results to create personalized velocity zones and review estimated 1RM progress. MAKE BETTER LOAD DECISIONS Use post-set feedback to decide whether to increase, maintain, or reduce weight. AccelIntel helps you evaluate whether the load matched the intended VBT zone instead of adjusting by feel alone. MONITOR STRENGTH AND POWER TRENDS Review workout history, exercise dashboards, velocity trends, load changes, fatigue, consistency, and estimated 1RM development over time. BUILT FOR ATHLETIC PERFORMANCE AccelIntel is designed for athletes who want more useful feedback from strength training, including sprinters, track athletes, team-sport athletes, strength coaches, barbell lifters, and self-coached athletes. WHY BAR SPEED MATTERS The same weight can produce different training results depending on how quickly it moves. Heavy, slower repetitions may emphasize maximum strength. Faster repetitions with appropriate loads may emphasize explosive power, starting strength, or speed-strength. Tracking velocity helps show whether the work matched the purpose of the session. GOOD FOR • Velocity-based training • Apple Watch bar-speed tracking • Sprint strength training • Acceleration-focused lifting • Explosive power development • Speed-strength and strength-speed training • Maximum-strength training • Barbell workouts • Personalized VBT zones • Load–velocity testing • Tracking velocity loss • Monitoring workout fatigue • Reviewing estimated 1RM progress IMPORTANT NOTE AccelIntel is a fitness and training tool. It is not a medical device and does not diagnose, treat, cure, or prevent any medical condition. Training results vary based on programming, technique, consistency, recovery, and individual factors. Always train safely, use proper lifting technique, and follow appropriate supervision.
Screenshots
Verdict
The clearest difference is update cadence: 00 at daily against AccelIntel's monthly. 00 also leads on iOS requirement (10.0 vs 17). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
00 ships an update daily, AccelIntel monthly. The most recent releases landed on September 19, 2026 and June 26, 2026 respectively.
| Parameter | 00 | AccelIntel |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Daily — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Requires iOS | 10.0 — better | 17 |
| Further details — not scored | ||
| Size | 28 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Adriaan de Jongh | Desperado Apps, LLC |
In-app purchases
00
No in-app purchases
AccelIntel
No in-app purchases





