ZeroHourLifeCenter vs Progressive Overload
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ZeroHourLifeCenter
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Zero Hour Life Center provides peer recovery support and peer recovery coaching for individuals with substance use disorder.
Progressive Overload
This app automates progressive overload in your workouts. It calculates your estimated one-rep max and provides structured guidance on how to increase weight or reps, removing guesswork and confusion from your training.
- Calculates and tracks estimated 1RM
- Guides weight vs. rep increases
- Encourages consistent progressive overload
- Structured and measurable progression
- Removes guesswork from training
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Progressive overload shouldn’t be guesswork. Most lifters understand the principle: lift more over time. But when it comes to execution, it gets confusing. Should you increase weight and drop reps? Add reps at the same weight? How do you know what actually pushes adaptation without stalling? I built this app because I was tired of bouncing between e1RM calculator websites before and after workouts. I’d plug in numbers, test a weight, adjust the next session, and repeat through trial and error. It broke focus and slowed progress. This app removes that friction. It automatically calculates your estimated one-rep max (e1RM) and helps guide intelligent progression. Instead of guessing what to lift next, you get structured guidance based on your performance. No spreadsheets. No switching between calculator tabs. No random weight jumps. Just clear, data-driven progression. What it does: • Calculates and tracks your estimated 1RM • Helps determine when to increase weight vs. reps • Encourages consistent progressive overload • Keeps your progression structured and measurable If you’re serious about getting stronger, this turns progressive overload from theory into a system. Train with intention. Progress with clarity.
Screenshots
Verdict
The clearest difference is update cadence: Progressive Overload at every 4 days against ZeroHourLifeCenter's monthly. 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.
ZeroHourLifeCenter ships an update monthly, Progressive Overload every 4 days. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.
| Parameter | ZeroHourLifeCenter | Progressive Overload |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.4 (7 ratings) — better |
| Positive reviews | — | 66.7% of reviews |
| Number of ratings | — | 7 — better |
| Update frequency | Monthly | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 370 MB | 36 MB |
| Age rating | 4+ | 9+ |
| Developer | Zero Hour Life Center Inc | GAVIN PETER OBRIEN |
In-app purchases
ZeroHourLifeCenter
No in-app purchases
Progressive Overload
No in-app purchases
Questions
Is ZeroHourLifeCenter free?
Is Progressive Overload free?
Do ZeroHourLifeCenter or Progressive Overload have ads?
Which is updated more often, ZeroHourLifeCenter or Progressive Overload?
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