Comparison

Forge vs Kronos Studio

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

Head to head
About

Forge

Features
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Forge is the Discipline OS. A gamified self-improvement app where your Future Self gives you missions to conquer procrastination, build habits, and level up your life. Forge is free to download. Some features require an active Forge Pro subscription or in-app purchase. Features: Daily Missions Bite-sized tasks that grow harder as you grow stronger. XP & Streaks Earn rewards, build streaks, and track your progress like a game. Future Self Chat Talk with your AI mentor who embodies the version of you that has already succeeded. Requires Forge Pro subscription. Squads Team up with friends or allies to stay accountable and motivated. May require Forge Pro subscription. Rituals & Slayer Face off against your vices like procrastination and laziness in ritual challenges. May require Forge Pro subscription. Demon Shield & Focus Lock Block digital traps and protect your focus. May require Forge Pro subscription. Why Forge? Most habit apps are boring checklists. Forge is a world you live in where discipline feels like a quest, not a chore. Start forging your best self today. Privacy Policy: https://www.getforge.xyz/privacy-policy Terms of Use: https://www.getforge.xyz/terms Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Kronos Studio

Features
Read full description

Real strength workouts, written for the gear you've got and the 30 minutes you have. Open Kronos and today's session is ready: exercises, sets and the weights filled in, built for the equipment in front of you and the minutes you named. Different every time, shaped to your gear, your time, and how you actually feel today. You don't need more motivation. You need fewer decisions. IT ALREADY KNOWS โ€ข It already knows what's at your gym. โ€ข It already knows you only have 20 minutes. โ€ข It already knows you skipped Tuesday. โ€ข It already knows you hated lunges last time. โ€ข It already knows you've done legs twice this week. So you don't have to. HOW ONE TAP WORKS BUILT AROUND YOUR ACTUAL GEAR. A pair of dumbbells, a full gym, or nothing at all: tell Kronos what you have and it never writes a workout that needs a cable machine someone else is on. It fills in the weight, too, instead of leaving you a blank. HOTEL ROOM? HOTEL WORKOUT. Save your spots: gym, home, hotel, the park. Switch in one tap and the workout reshapes itself. Flag an injury once and it plans around that too. SWIPE EXERCISES, NOT EX'S. Love it, like it, meh, never again. Every swipe trains the next workout. PROGRAMS THAT BEND. Seventeen programs, 2 to 8 weeks each, written for your gear and shaped to your week instead of the other way round. The first session of every one is free. Any day you'd rather not be on one, build a single session instead. TRAIN WITH YOUR CREW Start a challenge, drop the code in the group chat, and every finished day puts your name on the Wall beside theirs. Pick a shape: a daily target, a ladder, a weekly max test, or just show up. Wildcards cover a missed day, streaks carry, and nobody gets a notification about your rest day. It's the part that makes people keep going, and it isn't a leaderboard for strangers. It's five people you already know. A BIG CALM TIMER We tell you what's next; you just lift. No tapping mid-set. Then swipe: right to keep, left for never again. Benchmarks are in there too. Cindy, Murph, and 42 more, each one scaled to the kit you actually own instead of the kit the workout assumed. LOGGING, WHEN YOU WANT IT Log a set if you want the number. Skip it if you don't. Your week, your lifts, and your history are there when you go looking, and never the price of getting a workout. PLUS A FREE INTERVAL TIMER. ACTUALLY FREE. HIIT, Tabata, EMOM, AMRAP, plus full custom intervals. Save unlimited presets. The screen stays awake, the cues mix over your music, and there are no ads. No account needed, no "Pro timer" upsell. Not now, not ever. WHAT WE BELIEVE Variety beats optimization. Constraints are features. Decisions are willpower taxes. Today's mood matters. Adherence beats intensity. Fun is a strategy. A B+ workout four days a week beats an A+ workout once. Every time. KRONOS PRO Free is the interval timer, forever, plus five workouts written for your gear and the first session of every program. Pro is the rest: a new workout every day you open the app, every session of all 17 programs, your whole history scored, up to 10 challenges at once, and crew insights. Prices are shown in the app and may vary by region. Subscriptions auto-renew unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Terms: https://getkronos.app/terms Privacy: https://getkronos.app/privacy Most fitness apps make you a workout plan. Kronos makes you a person who works out. The best workout is the one you'll actually do.

Screenshots

Forge4 screens
Kronos Studio4 screens

Verdict

The call

The clearest difference is ads: Kronos Studio at none against Forge's shown. Kronos Studio also leads on update cadence (every 2 days vs every 11 days) and device support (3 vs 1). On price 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. Forge sells 4 in-app purchases, starting at $9.99 per month and Kronos Studio sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Forge ships an update every 11 days, Kronos Studio every 2 days. The most recent releases landed on September 9, 2026 and September 18, 2026 respectively.

Scorecard4 real differences ยท 2 level
Forge versus Kronos Studio: the parameters behind the verdict, then further details
ParameterForgeKronos Studio
PriceFreeFree
Update frequencyEvery 11 daysEvery 2 days โ€” better
AdsYesNo โ€” better
In-app purchasesYesYes
DevicesiPhoneiPhone, iPad, Apple Watch โ€” better
Requires iOS18.016.4 โ€” better
Further details โ€” not scored
Size105 MB97 MB
Age rating4+12+
DeveloperIronforge Labs LLCMuller Labs LLC

In-app purchases

4 purchases

Forge

Subscriptions4
  • Forge Premium$9.991 Month
  • Forge Premium (Monthly)$14.991 Month
  • Forge Premium3 Days trial$39.991 Year
Show 1 more
  • Forge Premium (Yearly)$89.991 Year
2 purchases

Kronos Studio

Subscriptions2
  • Kronos Pro Monthly$7.991 Month
  • Kronos Pro Yearly7 Days trial$79.991 Year

Questions

Is Forge free?
Forge is free to download, with in-app purchases available.
Is Kronos Studio free?
Kronos Studio is free to download, with in-app purchases available.
Do Forge or Kronos Studio have ads?
Forge shows ads; Kronos Studio does not.
Which is updated more often, Forge or Kronos Studio?
Forge ships an update every 11 days, and Kronos Studio every 2 days. Most recently, Forge was updated on September 9, 2026 and Kronos Studio on September 18, 2026.

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