Comparison

viiiv vs OneCrunches

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

Head to head
About

viiiv

This app facilitates isometric strength training by connecting to specialized hardware. It allows users to select from various exercises, track real-time force data, and view progress reports with trend graphs. Users can log their sessions, create group accounts for clients, and share detailed performance summaries.

Highlights
  • 8+ isometric exercises
  • Real-time force data graphing
  • User account for data logging
  • Group accounts for clients
  • Progress reports with trend lines
  • Sharable 2-page session reports
Features
Read full description

Choose from 8+ exercises and graph real-time force data while performing isometric strength training exercises on the ViiV-Rx. This app will not function without the viiiv Pro machine to connect to - see https://viiivfitness.com Log into your User account to save and track your exercise data or use in Guest Mode without an account. Or create a Group Account for your wellness business to track all of your clients. Select either 5 (default) or 10 seconds per exercise. A 50% of Previous Best threshold Trigger Start insures maximum effort. Progress Reports with trend line graphs for each user and exercise. A 2-Page Report sharable via email, message, etc. shows Total Overall Strength Improvement after each viiiv session.

About

OneCrunches

This app provides a focused and reliable way to track your crunch workouts. It offers features like goal setting, progress visualization, and motivational tools to help you stay consistent with your core routine.

Highlights
  • Fast crunch counting with responsive controls
  • Goals and progress tracking
  • Streaks, records, and achievements
  • Detailed stats and history
  • Challenges and social accountability
  • Widgets and shortcuts for quick access
  • iCloud sync support
Features
Read full description

TRACK EVERY CRUNCH. BUILD REAL MOMENTUM. OneCrunches is a focused crunch counter built for people who want fast, reliable workout tracking without friction. Tap to count, stay locked in, and watch your progress grow with goals, streaks, stats, achievements, reminders, widgets, themes, and challenges. Whether you are doing a quick ab session or building a long-term core routine, OneCrunches keeps the workout experience simple while giving you powerful tools to stay consistent. FEATURES • FAST CRUNCH COUNTING Tap to log every crunch with responsive controls designed for real workouts • QUICK ADD AND GESTURE CONTROLS Use tap, drag, and quick actions to count the way that feels best during your session • CLEAN, FOCUSED DESIGN A distraction-free interface keeps your attention on your workout • GOALS AND PROGRESS TRACKING Set daily, weekly, monthly, and custom goals with clear visual progress • STREAKS, RECORDS, AND ACHIEVEMENTS Stay motivated with streak tracking, personal bests, milestone celebrations, and unlockable achievements • DETAILED STATS AND HISTORY Review your crunch history with charts, averages, trends, active days, and performance insights • SHAREABLE STATS Export and share your progress summary with friends or on social media • SMART REMINDERS AND WEEKLY SUMMARIES Stay consistent with flexible reminders and weekly progress updates • CHALLENGES Create and join public challenges to stay accountable, see how others are doing, and keep your streak going • FLEXIBLE CHALLENGES One simple challenge format, two ways to play, pick a per-day target or a total goal, choose a duration, and you're in • APPLE WATCH APP Count from your wrist with workout session support and complications to keep your goal on your watch face • WIDGETS AND SHORTCUTS Track progress at a glance and add crunches faster from your Home Screen and other convenient entry points • PERSONALIZED THEMES Customize the counter with visual themes that make training more fun and rewarding • ICLOUD SYNC SUPPORT Keep your data available across devices and protected over time • OPTIONAL UPGRADES Remove ads and unlock premium content for an even better experience WHY OneCrunches? Most fitness apps try to do too much while you are working out. OneCrunches is built to do one thing extremely well: help you count crunches quickly, accurately, and consistently. You stay in control of every rep. No guessing. No clutter. Just a simple tool that helps you build momentum over time. Install OneCrunches now to turn every crunch into measurable progress.

Screenshots

viiiv4 screens
OneCrunches2 screens

Verdict

The call

The clearest difference is in-app purchases: viiiv at none against OneCrunches's 4. viiiv also leads on ratings volume (3 vs 1) and iOS requirement (12.0 vs 17.6). OneCrunches's advantage is update cadence (weekly vs every 2 months). On price, rating, ads 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. OneCrunches sells 4 one-off in-app purchases. viiiv 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 viiiv against 5.0 for OneCrunches. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

UpkeepUpdate frequency

viiiv ships an update every 2 months, OneCrunches weekly. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

Scorecard5 real differences · 5 level
viiiv versus OneCrunches: the parameters behind the verdict, then further details
ParameterviiivOneCrunches
PriceFreeFree
Rating5.0 (3 ratings)5.0 (1 ratings)
Positive reviews—100.0% of reviews
Number of ratings3 — better1
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17.6
Further details — not scored
Size36 MB12 MB
Age rating4+4+
DeveloperLess Is More LLCJared Ewing

Customer experience

viiiv

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

OneCrunches

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

viiiv

No in-app purchases

4 purchases

OneCrunches

One-time4
  • Theme Pack$1.99
  • Remove Ads$2.99
  • Premium Themes$4.99
Show 1 more
  • Unlock Everything$6.99

Questions

Is viiiv free?
viiiv is free to download, with no in-app purchases.
Is OneCrunches free?
OneCrunches is free to download, with in-app purchases available.
Which has better reviews, viiiv or OneCrunches?
viiiv and OneCrunches are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.
Do viiiv or OneCrunches have ads?
Neither viiiv nor OneCrunches shows ads.
Which is updated more often, viiiv or OneCrunches?
viiiv ships an update every 2 months, and OneCrunches weekly. Most recently, viiiv was updated on October 24, 2026 and OneCrunches on October 20, 2026.

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