Comparison

Invoy vs RepForge

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

Head to head
About

Invoy

This app helps users understand their fat burn through a breath-based device and track key wellness factors. An analyst team uses this data to provide personalized wellness insights, supporting serious commitment to health goals.

Highlights
  • Breath-based fat burn analysis
  • Key wellness factor tracking
  • Personalized wellness insights
  • HealthKit data integration (Weight)
  • Enterprise/clinical deployment program
Features
Read full description

Invoy is a different weight loss company that focuses on connecting the dots between your data and behaviors. At this time, Invoy’s program is only available through enterprise or clinical deployments. Each morning, clients use Invoy’s intuitive breath-based device to understand their fat burn. Invoy also allows clients to track key factors. With the data from breath and the key factors, Invoy’s analyst team helps to surface wellness insights. Invoy is perfect for people ready to make a serious commitment toward their health and wellness goals. They understand it takes a journey. They feel ready to make a change. Invoy shows you the following data from the Health app (HealthKit): - Weight Invoy’s breath device falls within FDA’s definition of a wellness product. Please see invoy.com for further information and links to the FDA guidance document. Please note that Invoy does not provide medical advice. If you have any questions about whether a weight management program is right for you, please check with your physician first.

About

RepForge

This app uses your iPhone camera to measure bar speed and path for powerlifting training. It analyzes your performance to adjust training targets and provides detailed insights into your progress and technique.

Highlights
  • Measure bar speed and path with iPhone camera
  • Velocity-based training recommendations
  • Log sets with weight, reps, and RPE
  • Video analysis with data overlays
  • Build multi-week training programs
  • Progress charting and analytics
  • AI coach for training adjustments
Read full description

RepForge is built for powerlifters who program by percentage of 1-rep-max (%1RM) and RPE, with the plan driven by data rather than guesswork. Measure bar speed straight from your iPhone camera, no extra hardware, then let those numbers shape your %1RM and RPE targets. Most apps treat RPE and velocity as something you note after a set. RepForge makes them the input that drives the plan, the workflow serious lifters and coaches otherwise piece together by hand in spreadsheets. VELOCITY-BASED TRAINING Measure bar speed and bar path from your iPhone camera using our own custom-trained detection model, with no extra hardware Build a separate load-velocity profile for each exercise, variation, and equipment setup, since these relationships differ from lift to lift Turn measured bar speed into weight and %1RM/RPE recommendations for your next set See whether you are moving the same load faster as a block progresses WORKOUT TRACKING Log every set with weight, reps, and RPE, with bar velocity attached from a recorded video Film any set and review it straight from your log Built-in rest timer that shows on your lock screen with iOS Live Activities VIDEO ANALYSIS Overlay the set's data (reps, weight) and measured metrics (range of motion, RPE, bar speed) onto the clip Trim to the exact rep and pinch to zoom in on key positions Play two lifts side by side and synchronized, to compare technique between attempts or across weeks Export the annotated or side-by-side video to share with a coach TRAINING PROGRAMS Build multi-week, phase-based programs the way powerlifting blocks are actually structured Prescribe each set by %1RM or RPE, then log how it actually felt to see where the plan and reality diverge PROGRESS & ANALYTICS Chart estimated 1RM for every lift and watch strength trend across blocks View each lift's load-velocity profile and how it shifts as you train See training volume and program adherence at a glance Get a readiness read from your recent sessions to help decide when to push or back off CALCULATORS One-rep-max estimator from your submaximal work sets RPE calculator to find the target weight for any reps-at-RPE Competition scoring: Wilks, DOTS, IPF GL Points, Glossbrenner, McCulloch, and more AI COACH Smith, an AI coach that reviews your training and checks in on how sessions are going Suggests specific adjustments like exercise swaps, deloads, and phase extensions Can draft a full periodized program from a short back-and-forth Every suggestion is a change you accept, reject, or edit, and nothing is applied on its own Off by default, opt in whenever you want BODY WEIGHT & RECORDS Log body weight and watch it trend on interactive charts Personal records tracked automatically for every exercise Pull your best competition squat, bench, and deadlift into the scoring calculators SYNC & PRIVACY Automatic iCloud sync keeps your data backed up and current across devices Your data stays in your private iCloud, with no RepForge account required SUBSCRIPTION RepForge is free to download and includes the core workout tracker and calculators. RepForge Pro unlocks velocity tracking, progress analytics, program history, workout insights, and the AI Coach. Your first 30 days of RepForge Pro are free, with no payment required and no automatic charge. After 30 days, subscribe for $9.99/month (US; pricing varies by region) to keep premium features. The monthly subscription auto-renews unless canceled at least 24 hours before the end of the current period; manage or cancel anytime in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://ironlabs.fit/privacy.html Built by lifters, for lifters.

Screenshots

Invoy4 screens
RepForge4 screens

Verdict

The call

The clearest difference is in-app purchases: Invoy at none against RepForge's 1. Invoy also leads on ratings volume (76 vs 1) and iOS requirement (13.0 vs 17.0). RepForge's advantage is rating (5.0 vs 4.6) and update cadence (weekly vs every 6 weeks). On price, 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. RepForge sells 1 in-app purchase, starting at $9.99 per month. Invoy asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

RepForge holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Invoy has 76 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Invoy ships an update every 6 weeks, RepForge weekly. The most recent releases landed on October 7, 2026 and October 4, 2026 respectively.

Scorecard6 real differences · 4 level
Invoy versus RepForge: the parameters behind the verdict, then further details
ParameterInvoyRepForge
PriceFreeFree
Rating4.6 (76 ratings)5.0 (1 ratings) — better
Positive reviews89.5% of reviews—
Number of ratings76 — better1
Update frequencyEvery 6 weeksWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPod — betteriPhone
Requires iOS13.0 — better17.0
Further details — not scored
Size140 MB145 MB
Age rating12+4+
DeveloperInvoyChristopher Janover

Customer experience

Invoy

All ratings76 ratings
Positive88.2%
Neutral1.3%
Negative10.5%
Written reviews19 reviews
Positive89.5%
Neutral0.0%
Negative10.5%

RepForge

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Invoy

No in-app purchases

1 purchases

RepForge

Subscriptions1
  • RepForge Pro$9.991 Month

Questions

Is Invoy free?
Invoy is free to download, with no in-app purchases.
Is RepForge free?
RepForge is free to download, with in-app purchases available.
Which has better reviews, Invoy or RepForge?
RepForge is rated higher. Invoy averages 4.6 out of 5 from 76 ratings, while RepForge averages 5.0 from 1 ratings.
Do Invoy or RepForge have ads?
Neither Invoy nor RepForge shows ads.
Which is updated more often, Invoy or RepForge?
Invoy ships an update every 6 weeks, and RepForge weekly. Most recently, Invoy was updated on October 7, 2026 and RepForge on October 4, 2026.

Other comparisons