SigmaLifting vs Sprint U
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SigmaLifting
This app streamlines powerlifting program design by eliminating spreadsheet reliance. It allows for quick setup of percentage-based prescriptions, RPE targets, and deloads, with features for reusable templates and instant updates. Train offline with all data stored locally.
- Percentage-based weight programming
- RPE target tracking
- Automatic deload calculations
- Reusable training templates
- Offline functionality
- Export to spreadsheet/JSON
- Variable logging options
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STOP FIGHTING SPREADSHEETS. START TRAINING. SigmaLifting is a purpose-built programming app for powerlifting. It helps you set up percentage-based prescriptions, RPE targets, backoff sets, fatigue drops, and deloads in minutes—without the fragility of formulas or the hassle of spreadsheet upkeep. PROGRAM ONCE, RUN FOREVER Build reusable templates and run them again anytime with clean, cycle-by-cycle tracking. REAL PROGRAMMING LOGIC, NO SPREADSHEET WORKAROUNDS Percentages, 1RM anchoring, backoff sets, fatigue drops, and straightforward deloads are built in. No cell references, hidden formulas, or broken links. INSTANT UPDATES Adjust a 1RM, change a percentage, or refine your plan and see your prescriptions update immediately. 100% OFFLINE. NO ACCOUNT REQUIRED. Your data stays on your device. No cloud, no login. EXPORT AND SHARE WITH CONFIDENCE And yes, you can export everything as clear, readable spreadsheets (XLSX) or JSON anytime—and import them back. Share programs with training partners and keep results identical across devices. KEY FEATURES • Blocks & periodization — structure multi-week training phases • Set groups — program identical sets efficiently • Percentage-based weights — link prescriptions to squat, bench, or deadlift 1RM • 1RM anchoring — tie accessories to main lift maxes • Backoff sets — auto-calculate from prior set performance • Fatigue drops — reduce load when RPE exceeds your threshold • Simple deloads — final week auto-calculates from the previous week • Variable logging — track weight, reps, RPE, or your preferred combination • Auto-suggested weights — recommendations based on 1RM, reps, and target RPE DESIGNED FOR MOBILE Spreadsheets weren't made for phones. SigmaLifting is. You get the same programming depth with a fast, clean interface that fits how you actually train. WHO IT'S FOR Powerlifters, strength athletes, and coaches who build plans with percentages, RPE, or both. If you’ve ever maintained a training block in Sheets and wished it felt simpler and more reliable, SigmaLifting is built for you.
Sprint U
This AI coach provides personalized gym workouts and recovery insights for athletes. It adapts training plans based on your readiness, soreness, and performance data, helping you train with purpose.
- Personalized adaptive workout plans
- Readiness insights and CNS tap test
- Soreness and recovery tracking
- AI coaching and guidance
- Integration with Apple Health
- Training for speed, power, and explosiveness
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Build real speed with a coach in your pocket. Speed Mastery by Sprint University creates a complete training plan for athletes who want to accelerate faster, reach higher top speeds, and perform when it matters most. Built with professional sprinter and Sprint University founder Lawrence “L.O.” Johnson, Speed Mastery organizes your track work, strength training, recovery, and competition schedule into one adaptive program based on proven sprint training principles. A COMPLETE SPEED DEVELOPMENT PLAN Tell Speed Mastery your event, training days, meet schedule, equipment, and goals. The app builds your season through the right phases, from general preparation and acceleration development to max velocity, speed endurance, and tapering. Miss a workout, change your schedule, or add a competition? Your plan adjusts. TRAIN THE RIGHT QUALITY AT THE RIGHT TIME Your program balances the key components of speed development: • Acceleration • Maximum velocity • Speed endurance • Sprint mechanics • Plyometrics • Strength and power • Mobility and recovery Every session has a purpose, so you always understand what you are training and why. READINESS-DRIVEN TRAINING Speed Mastery reads HRV, resting heart rate, and sleep data from Apple Health, then combines it with a quick daily check-in and CNS tap test. When you are ready, the app helps you push. When fatigue is elevated, it can reduce volume, lower intensity, or substitute recovery work before poor training turns into a setback. STRENGTH TRAINING BUILT FOR SPEED Develop the force and power needed to sprint faster with structured strength phases, including: • Eccentric, isometric, and concentric training • Overcoming isometrics • Eccentric overload • French Contrast • Olympic lift variations • Sprint-specific plyometrics Each method includes clear instructions, coaching cues, and setup guidance. AN AI SPEED COACH THAT ADAPTS Make changes using plain language: “Make Wednesday lighter.” “I race on Saturday.” “Add more acceleration work.” “Give me a lower-body isometric session.” Your coach updates the plan for your review while considering your schedule, equipment, training history, and physical limitations. BUILT FOR SPEED Speed Mastery is designed for: • 60m, 100m, 200m, and 400m sprinters • Football, soccer, rugby, and field-sport athletes • Jumpers and explosive athletes • Coaches building structured speed programs • Any athlete serious about becoming faster TRACK EVERY SESSION Log sprint times, exercises, sets, reps, weights, and readiness. Use target weights based on your 1RMs, built-in plate math, rest timers, Live Activities, and a season calendar that shows how every workout fits into the bigger plan. Stop guessing. Start training for speed. Master your acceleration. Raise your top speed. Perform when it counts. Speed Mastery by Sprint University. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: SigmaLifting at none against Sprint U's 9. SigmaLifting also leads on iOS requirement (15.1 vs 26.0). Sprint U's advantage is update cadence (every 3 days vs every 2 months). On price, rating, review sentiment and ratings volume 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. Sprint U sells 9 in-app purchases, starting at $7.99 per 7 days. SigmaLifting asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for SigmaLifting against 5.0 for Sprint U. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
SigmaLifting ships an update every 2 months, Sprint U every 3 days. The most recent releases landed on October 17, 2026 and October 28, 2026 respectively.
| Parameter | SigmaLifting | Sprint U |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (4 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 | 4 — better |
| Update frequency | Every 2 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Subscription |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 26.0 |
| Further details — not scored | ||
| Size | 36 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | Sigmalifting LLC | 1515 Labs Inc. |
Customer experience
SigmaLifting
Sprint U
In-app purchases
SigmaLifting
No in-app purchases
Sprint U
- Weekly Subscription$7.997 Days
- Monthly Subscription$8.991 Month
- Monthly Subscription$19.991 Month
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- Yearly Subscription7 Days trial$59.991 Year
- Yearly Subscription3 Days trial$59.991 Year
- Monthly Subscription$97.001 Month
- Yearly Subscription7 Days trial$99.991 Year
- Yearly Subscription3 Days trial$99.991 Year
- Yearly Subscription$99.991 Year









