One Rep Max vs StrengthIQ
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
One Rep Max
Safely estimate your maximum lift potential for various strength exercises using scientific formulas. Track your progress visually, set goals, and fine-tune estimates with perceived exertion. Ideal for powerlifters, CrossFit athletes, and strength enthusiasts.
- Precise 1RM calculations with 7 scientific formulas
- RPE integration for fine-tuned estimates
- Custom exercise tracking for any lift
- Visual progress graphs
- Percentage charts for training
- Goal setting and progress monitoring
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Stronger Training, Smarter Progress One Rep Max helps you safely and accurately determine your maximum lift potential for bench press, deadlift, squat, and any other strength exercise - without risking injury. Key Features: • Precise Calculations - 7 scientific formulas for accurate strength predictions: Epley, Brzycki, Lombardi, Mayhew, McGlothin, O'Conner, Wathan • RPE Integration - Factor in Rate of Perceived Exertion to fine-tune your max estimates based on how difficult sets feel • Custom Exercise Tracking - Create and monitor any lift that matters to you • Visual Progress - Beautiful graphs show your strength journey over time • Percentage Charts - Quick reference guide for training percentages • Goal Setting - Set targets and track your path to reaching them Perfect for: • Powerlifters optimizing their training cycles • CrossFit athletes tracking multiple movement patterns • Olympic weightlifters monitoring progress • Strength enthusiasts at any level Advanced Features: • Choose between multiple calculation formulas for different lift types • Track unlimited exercises with custom notes • Rate of Perceived Exertion (RPE) - Fine-tune your 1RM estimates based on how difficult sets feel • Analyze detailed statistics including volume and frequency • Set and monitor progress toward specific strength goals The Science Behind The Numbers: Our app employs multiple validated formulas to estimate your one-rep maximum based on your performance with submaximal weights. This provides you with safe strength targets before attempting potentially risky maximal lifts. Safety Note: Heavy weightlifting should always be performed with proper technique and appropriate spotting. This app provides estimates based on scientific formulas, but individual performance may vary based on experience level and training history. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
StrengthIQ
Log barbell lifts and pull-ups with detailed set tracking. View exercise history and trends with suggested loads and estimated 1RM calculations. Workout data is stored locally on your device for privacy.
- Log barbell lifts and pull-ups
- Track weight, reps, and set styles
- Suggested loads and estimated 1RM
- Dedicated pull-up tracking
- Privacy-focused local data storage
- Exercise-specific accent colors
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StrengthIQ is a focused strength-training log for iPhone. Pick an exercise, log sets in seconds, and review history when you want to see how you’re trending. Barbell lifts (seven exercises) Log weight (lb), reps, optional percentage of 1RM, and optional set style (regular, eccentric, drop set, max unbroken, pause, cluster). Suggested loads follow NSCA-style rounding to 5 lb when you use % of 1RM, with full manual control. Estimated 1RM uses the Epley formula from your logged sets (rounded to the nearest 5 lb) and updates from your most recent calendar-day session for each lift. You can also set manual 1RM overrides in Settings. Pull-ups Dedicated flow without 1RM / NSCA load UI: log reps over time, choose a variant (standard/strict, chin-up, wide, close, commando, weighted, chest-to-bar), note eccentric emphasis, and add weight when you use it. Exercises included Deadlift, bench press, squat, Pendlay row, hip thrust, pull-up, hang clean, barbell overhead press—each with its own accent color for quick scanning. Privacy Workout data is stored on your device only. There is no cloud sync and no account in v1. Uninstalling may remove app data; use device backups if you need to keep records. Note StrengthIQ is built with a dark UI and navigation patterns aligned with IntervalIQ (IntervalTimer), if you use both apps side by side.
Screenshots
Verdict
The clearest difference is rating: StrengthIQ at 5.0 against One Rep Max's 4.4. StrengthIQ also leads on in-app purchases (none vs 3) and ads (none vs shown). One Rep Max's advantage is ratings volume (185 vs 1) and device support (3 vs 1). On price and update cadence 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. One Rep Max sells 3 in-app purchases, starting at $2.99 per month. StrengthIQ asks for nothing beyond the download.
StrengthIQ holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: One Rep Max has 185 ratings behind it against 1, so its average is the more settled of the two.
Both ship on a similar rhythm, roughly every 6 days. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.
| Parameter | One Rep Max | StrengthIQ |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (185 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 58.2% of reviews | — |
| Number of ratings | 185 — better | 1 |
| Update frequency | Every 6 days | Every 6 days |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 52 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Charles Vanderhoff | MICHAEL ANTHONY ROBERTS |
Customer experience
One Rep Max
StrengthIQ
Bugs and requests
One Rep Max
Reported bugs
13 issues- Features behind paywall
- Forced ads
- Deleted lifting history
- Lost all logs with update
- Weight limit restriction
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- Reloads excessively
- Wonky and now dead
- Complicated and too much offered
- Not intuitive for tracking
- Buggy about dates and lifts
- Cannot select other lifts
- Only logs back squats
- App copying content from clipboard
Requested features
7 requests- Allow editing of logs (date/time)
- Manual entry for weight preferred over slider
- Include different 1RM formulas (Epley, Brzycki)
- Ability to create custom graphs
- Fix weight limit restriction
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- Allow logging of more than 1073 pounds
- Update app
StrengthIQ
Not enough reviews yet to summarise bugs or requests.
In-app purchases
One Rep Max
- 1RM Pro Monthly$2.991 Month
- 1RM Pro Annual7 Days trial$19.991 Year
- 1RM Pro Lifetime$49.99
StrengthIQ
No in-app purchases









