Comparison

Proving Ground vs Slice Weight Loss

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

Head to head
About

Proving Ground

Book functional training classes and personal training sessions at a revolutionary studio. View schedules, reserve spots in group classes, and purchase class packages directly through the app. Focus on smart training with mobility and recovery integrated into every workout.

Highlights
  • Book training classes
  • View class schedules
  • Purchase class packages
  • Personal training sessions
  • Functional training focus
  • Mobility and recovery integration
Features
Read full description

The official app of Proving Ground Studio in Hull, MA. Download the app to find and book training classes. From the app you can view class schedules, book group classes, purchase class packages. Proving Ground is a revolutionary training studio offering top-quality functional training classes and personal training sessions. We focus on training smart, with mobility and recovery as key ingredients of each workout. “Sometimes we are tested. Not to show our weaknesses, but to discover our strengths.” This is Proving Ground.

About

Slice Weight Loss

This program promotes a healthy plant-based lifestyle, drawing inspiration from Mediterranean and Blue Zones diets. It helps users achieve weight loss and life goals with immediate feedback to guide their choices.

Highlights
  • Plant-based healthy lifestyle program
  • Mediterranean and Blue Zones diet principles
  • Personalized weight loss and life goals
  • Immediate feedback for choice guidance
  • Auto-renewing subscription options
Features
Read full description

Slice is a plant-based lifestyle program advocating healthy eating and exercise. It follows the characteristics of both the Mediterranean diet and diets followed by centenarians researched in the Blue Zones. Slice assists clients in achieving personal weight loss and life goals by providing support through immediate feedback that guides their choices. You may purchase an auto-renewing subscription through an In-App Purchase. • Auto-renewable subscription • 1 month ($4.99), 3 month ($13.99) and 12 month ($49.99) durations • Your subscription will be charged to your account at confirmation of purchase and will automatically renew (at the duration selected) unless auto-renew is turned off at least 24 hours before the end of the current period. • Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your Account Settings after purchase • Privacy policy: https://www.pcweightloss.com/_files/ugd/dd5b11_29b18d809d124b8c9063c21115ace435.pdf • Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Proving Ground4 screens
Slice Weight Loss4 screens

Verdict

The call

The clearest difference is in-app purchases: Proving Ground at none against Slice Weight Loss's 3. Proving Ground also leads on ratings volume (210 vs 3). On price, rating, review sentiment 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Slice Weight Loss sells 3 in-app purchases, starting at $4.99 per month. Proving Ground asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Proving Ground against 5.0 for Slice Weight Loss. That said, the two scores are not equally well evidenced: Proving Ground has 210 ratings behind it against 3, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Proving Ground ships an update monthly, Slice Weight Loss every 3 weeks. The most recent releases landed on October 29, 2026 and October 19, 2026 respectively.

Scorecard3 real differences · 7 level
Proving Ground versus Slice Weight Loss: the parameters behind the verdict, then further details
ParameterProving GroundSlice Weight Loss
PriceFreeFree
Rating5.0 (210 ratings)5.0 (3 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings210 — better3
Update frequencyMonthlyEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhoneiPhone, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size38 MB123 MB
Age rating4+17+
DeveloperProving Ground Limited Liability CorporationPhysicians’ Choice for Weight Loss, Inc.

Customer experience

Proving Ground

All ratings210 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Slice Weight Loss

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Proving Ground

No in-app purchases

3 purchases

Slice Weight Loss

Subscriptions3
  • Monthly Subscription7 Days trial$4.991 Month
  • 3 Month Subscription7 Days trial$13.993 Months
  • Yearly Subscription7 Days trial$49.991 Year

Questions

Is Proving Ground free?
Proving Ground is free to download, with no in-app purchases.
Is Slice Weight Loss free?
Slice Weight Loss is free to download, with in-app purchases available.
Which has better reviews, Proving Ground or Slice Weight Loss?
Proving Ground and Slice Weight Loss are both rated 5.0 out of 5 on the App Store, from 210 and 3 ratings respectively.
Do Proving Ground or Slice Weight Loss have ads?
Neither Proving Ground nor Slice Weight Loss shows ads.
Which is updated more often, Proving Ground or Slice Weight Loss?
Proving Ground ships an update monthly, and Slice Weight Loss every 3 weeks. Most recently, Proving Ground was updated on October 29, 2026 and Slice Weight Loss on October 19, 2026.

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