Comparison

Plate Calculator Pro vs SupplementStack

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

Head to head
About

Plate Calculator Pro

Instantly calculate the correct weight plates to load onto a barbell. Features a visual plate diagram, custom plate inventory, and support for various bar types. Quickly adjust weights and save favorite combinations for efficient workouts.

Highlights
  • Instant plate calculation
  • Color-coded visual diagram
  • Custom plate inventory
  • Multiple bar type support
  • Quick weight adjustment
  • Save favorite weights
  • LB/KG support
Read full description

You're standing at the rack. The program says 275. You stare at the bar and start doing mental math. Not anymore. Plate Calculator Pro tells you exactly which plates to load on each side of the bar, instantly. Type your target weight, see the answer. No signup. No tutorials. No nonsense. Just open it and lift. SEE YOUR PLATES AT A GLANCE A bold, color-coded plate diagram shows you exactly what goes on the bar. Each plate type has its own color (45s are red, 25s are green, 10s are blue) so you can confirm your setup from across the gym. No squinting at tiny numbers between sets. WORKS WITH YOUR ACTUAL PLATES Not every gym has the same inventory. Tell the app how many of each plate you have, and it will only suggest combinations you can actually load. If your target weight isn't achievable with your available plates, it shows the nearest weights above and below. SUPPORTS EVERY BAR IN THE GYM Olympic bar, women's bar, safety squat bar, trap bar, EZ curl bar; pick your bar type and the calculation adjusts automatically. Set a custom bar weight if yours is different. Your last selection is remembered. QUICK-ADJUST WITHOUT THINKING Tap +5, +10, -5, or -10 to nudge the weight up or down. In kg mode, adjust by 2.5 or 5. Perfect for working through warm-up sets or making on-the-fly changes. SAVE YOUR GO-TO WEIGHTS Bookmark your working sets with custom labels. "Bench Work Set - 225 lb" or "Squat Opener - 405 lb." One tap loads it into the calculator instantly. No retyping. No remembering. LB AND KG SUPPORT Toggle between pounds and kilograms globally or on the fly. All plate weights, bar weights, and calculations convert correctly. Train at any gym in the world. BUILT FOR THE GYM Dark interface by default so it doesn't blind you at 5 AM. Large text and oversized buttons so you can use it with chalked-up hands. Haptic feedback on every adjustment. Launches in under a second, because you're between sets, not browsing. NO ACCOUNT REQUIRED No email. No login. No data collection. Your settings and saved weights stay on your device. This is a tool, not a platform. 100% FREE ALL FEATURES INCLUDED Every feature works without paying a cent. A small banner ad keeps the lights on. If you want a completely clean screen, a one-time $2.99 purchase removes the ad permanently. No subscriptions. No recurring charges. No feature gates. Plate Calculator Pro is the plate math app that should have existed years ago. Fast, accurate, and zero friction. Load the bar and get to work. What's New, Version 1.0 Launch day. Plate Calculator Pro is here. - Instant plate calculation with color-coded visual diagram - Support for Olympic, women's, safety squat, trap, and EZ curl bars - Custom plate inventory — set what your gym actually has - Save and label your frequently used weights - Quick-adjust buttons for fast weight changes - Full lb/kg support with one-tap toggle - Dark theme built for gym lighting - One-time $2.99 option to remove the banner ad Load the bar. Let's go.

About

SupplementStack

Features
Read full description

SupplementStack helps you organize your supplements, build a daily routine, and keep track of what you take over time. Use SupplementStack to: - Track daily supplement intake by time of day - Organize supplements into stacks by goal - Add product details manually, from barcodes, or from label scans - Review ingredient totals and possible overlap across your stack - Track history, consistency, and routine changes - Manage inventory details such as serving count and refill timing SupplementStack is built for people who want a clearer supplement system without spreadsheets, notes scattered across apps, or forgotten bottles in the cabinet. Important: SupplementStack is an organizational and informational tool. It does not provide medical advice, diagnosis, or treatment recommendations. Always consult a qualified healthcare professional before starting, stopping, or changing any supplement routine. Subscriptions unlock expanded tracking, scans, history, and stack insights. Website subscriptions are available through supplementstack.com. iOS subscriptions are available through Apple In-App Purchase and can be managed from your Apple account. Terms of Use (EULA): https://supplementstack.com/terms Privacy Policy: https://supplementstack.com/privacy

Screenshots

SupplementStack4 screens

Verdict

The call

The clearest difference is device support: SupplementStack at 3 against Plate Calculator Pro's —. SupplementStack also leads on iOS requirement (15.0 vs 17.0). On price and in-app purchases 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. Plate Calculator Pro sells 1 one-off in-app purchase and SupplementStack sells 4 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard2 real differences · 7 level
Plate Calculator Pro versus SupplementStack: the parameters behind the verdict, then further details
ParameterPlate Calculator ProSupplementStack
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequency—Every 2 days
Ads—No
In-app purchasesYesYes
MonetizationAd-supported—
Devices—iPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size3 MB4 MB
Age rating4+4+
DeveloperCHAPPIE LLCNevo Solutions Inc

In-app purchases

1 purchases

Plate Calculator Pro

One-time1
  • Remove Ads$2.99
4 purchases

SupplementStack

Subscriptions4
  • SupplementStack Plus$4.991 Month
  • SupplementStack Pro$9.991 Month
  • SupplementStack Plus Annual$39.001 Year
Show 1 more
  • SupplementStack Pro Annual$79.001 Year

Questions

Is Plate Calculator Pro free?
Plate Calculator Pro is free to download, with in-app purchases available.
Is SupplementStack free?
SupplementStack is free to download, with in-app purchases available.

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