Comparison

ZeroHourLifeCenter vs Progressive Overload

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

Head to head
About

ZeroHourLifeCenter

Features
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Zero Hour Life Center provides peer recovery support and peer recovery coaching for individuals with substance use disorder.

About

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.

Highlights
  • Calculates and tracks estimated 1RM
  • Guides weight vs. rep increases
  • Encourages consistent progressive overload
  • Structured and measurable progression
  • Removes guesswork from training
Read full description

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

ZeroHourLifeCenter3 screens
Progressive Overload4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

ZeroHourLifeCenter ships an update monthly, Progressive Overload every 4 days. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

Scorecard1 real difference · 9 level
ZeroHourLifeCenter versus Progressive Overload: the parameters behind the verdict, then further details
ParameterZeroHourLifeCenterProgressive Overload
PriceFreeFree
Rating—4.4 (7 ratings) — better
Positive reviews—66.7% of reviews
Number of ratings—7 — better
Update frequencyMonthlyEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.1
Further details — not scored
Size370 MB36 MB
Age rating4+9+
DeveloperZero Hour Life Center IncGAVIN PETER OBRIEN

In-app purchases

None

ZeroHourLifeCenter

No in-app purchases

None

Progressive Overload

No in-app purchases

Questions

Is ZeroHourLifeCenter free?
ZeroHourLifeCenter is free to download, with no in-app purchases.
Is Progressive Overload free?
Progressive Overload is free to download, with no in-app purchases.
Do ZeroHourLifeCenter or Progressive Overload have ads?
Neither ZeroHourLifeCenter nor Progressive Overload shows ads.
Which is updated more often, ZeroHourLifeCenter or Progressive Overload?
ZeroHourLifeCenter ships an update monthly, and Progressive Overload every 4 days. Most recently, ZeroHourLifeCenter was updated on October 30, 2026 and Progressive Overload on October 24, 2026.

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