Comparison

Kheper App vs Arc

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

Head to head
About

Kheper App

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Kheper is a workout editor. Blank page, you fill it in. No pre-made routines, no algorithm picking exercises for you. Every workout is a document. Drop in exercises, notes, YouTube videos, photos, and rearrange by dragging. Save any workout as a template if you want to reuse it. EXERCISES Reps and weight, duration, distance, or any combination. Supersets and circuits. Create your own exercises with muscle groups and instructions. REST TIMER Auto-starts between sets. Shows on Dynamic Island and your lock screen. HISTORY Past workouts, progress charts, automatic PR detection. SYNC iCloud across devices (optional). Apple Health. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://lockeddb.github.io/kheper-legal/privacy-policy.html

About

Arc

Features
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The AI coach that lives on your iPhone and Watch โ€” not in someone's cloud. Arc builds you a real training plan across the sports you actually do โ€” running, cycling, walking, swimming, and strength โ€” then adapts it week to week based on how your body is responding. Unlike coaching apps that ship your data off to a server, Arc's AI coach runs privately on your device: offline, fast, and yours. Train the way you actually train Mix running, cycling, walking, swimming, and strength in one plan. Add or drop activities anytime and Arc folds them into your current block โ€” no starting over. Meet your coach โ€” now on your wrist Ask Arc anything: get a pre-session briefing, ask why today is easy, or check whether you're on track for your event โ€” right from your Apple Watch. Answers are handled privately through Apple's on-device and Private Cloud Compute models. Show it a photo, too: snap a race elevation sign, a gym whiteboard, or a screenshot from another app, and Arc reads it and answers. A plan that adapts โ€” and explains itself Arc watches your readiness, your training load, and how each session actually went, then adjusts the days ahead. Every suggestion comes with a "Why this?" breakdown showing the exact signals it weighed and which way each one pushed โ€” no black box. Because life happens Injured, sick, traveling, or just need a break? Tell Arc from the Today screen and it reshapes your plan for you. Days off count as rest, not missed โ€” and your event date never moves. When you're ready, ask Arc how to ease back in. Training built around your body โ€ข Cycle-aware readiness โ€” if you track your cycle in Apple Health, Arc factors your phase into readiness and your weekly plan (read-only; nothing is ever written back). โ€ข Daily check-ins โ€” muscle soreness, chafing, and saddle soreness feed your readiness score, so run and ride niggles both count. โ€ข Readiness at a glance โ€” on your Lock Screen, in the Dynamic Island, and on your watch. Serious analytics, made readable See your Performance Management Chart โ€” Fitness, Fatigue, and Form plotted together over time โ€” so you can watch fitness build and freshness peak for your big day. Track your acute-to-chronic load balance in plain English before it turns into an overuse injury. Event day, dialed in Turn your goal time and course into an even-effort pacing plan that eases the climbs and lets you run โ€” or ride โ€” the descents. Arc even tells you whether your current fitness is on track for the goal. Got more than one event? Add your tune-up B and C races and Arc fits them into your build with a light taper and easy day around each. Fits your world โ€ข Log by swiping on Today, ask Siri, or tap a Control Center button โ€ข Personal records, achievements, and gear-mileage tracking โ€ข Pods โ€” share progress and weekly challenges with friends โ€ข Fully localized in English and Spanish Arc Pro Free to start. Arc Pro unlocks the AI coach, the Performance Management Chart, event pacing, injury rebuilds, and more. Your AI endurance coach โ€” prescriptive, adaptive, transparent, and private. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://largentlabs.com/arc/privacy.html

Screenshots

Kheper App3 screens
Arc4 screens

Verdict

The call

The clearest difference is device support: Arc at 3 against Kheper App's 1. Kheper App's advantage is iOS requirement (18.0 vs 26.5). On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Kheper App sells 3 in-app purchases, starting at $2.99 per month and Arc sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Kheper App ships an update every 6 weeks, Arc monthly. The most recent releases landed on October 5, 2026 and October 16, 2026 respectively.

Scorecard2 real differences ยท 4 level
Kheper App versus Arc: the parameters behind the verdict, then further details
ParameterKheper AppArc
PriceFreeFree
Update frequencyEvery 6 weeksMonthly โ€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone, iPad, Apple Watch โ€” better
Requires iOS18.0 โ€” better26.5
Further details โ€” not scored
Size72 MB10 MB
Age rating4+4+
DeveloperDaniel BenetLargent Labs, LLC

In-app purchases

3 purchases

Kheper App

Subscriptions2
  • Kheper Pro โ€” Mensual7 Days trial$2.991 Month
  • Kheper Pro - Anual7 Days trial$14.991 Year
One-time1
  • Kheper Pro - Permanente$49.99
2 purchases

Arc

Subscriptions2
  • Pro Monthly7 Days trial$4.991 Month
  • Pro yearly7 Days trial$39.991 Year

Questions

Is Kheper App free?
Kheper App is free to download, with in-app purchases available.
Is Arc free?
Arc is free to download, with in-app purchases available.
Do Kheper App or Arc have ads?
Neither Kheper App nor Arc shows ads.
Which is updated more often, Kheper App or Arc?
Kheper App ships an update every 6 weeks, and Arc monthly. Most recently, Kheper App was updated on October 5, 2026 and Arc on October 16, 2026.

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