Comparison

Under Siege vs RankZero

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

Head to head
About

Under Siege

Features
Read full description

Under Siege turns workouts into epic battles. Defend your outpost on the edge of the Shadow Lands. Every push-up, squat, sit-up, and pull-up strikes the monsters at your gate. Subscription required. Under Siege is a subscription app. After onboarding, a purchase (or a 3-day free trial on the yearly plan) is required to access the full game. That includes all enemies, all four workout types (push-ups, squats, sit-ups, pull-ups), custom workouts, progress, and in-game rewards. Prop up your phone, face the camera, and fight. On-device pose tracking counts your reps so each set damages the enemy. Level up, earn gold, heal with potions, and climb a ladder of foes from training dummies to the lich demigod himself. Miss a killing blow and you retreat with 1 HP, then heal up and take the outpost back. Included with subscription: • Camera-based rep counting for push-ups, squats, sit-ups, and pull-ups • Story-driven campaign: hold the outpost against rising raids from the Shadow Lands • XP, gold, levels, potions, and a daily streak that keeps you coming back • Custom workouts: choose the exercise, sets, reps, and enemy art • Share victory cards and short fight clips after a win • Light and dark themes, daily reminders, and haptics on every counted rep • Progress stays on your device. No account required to play Privacy Policy: https://apps-that-care.com/under-siege/privacy-policy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

RankZero

Build discipline through daily habits and track your progress with a unique character leveling system. Engage in guided skill sprints and compete with friends in weekly leagues. Offers a free tier with core features and a Pro subscription for advanced tools.

Highlights
  • Daily habit tracking
  • Streak building
  • Gamified character progression
  • Guided skill sprints
  • Friend accountability and leagues
  • Forgiveness mechanic for missed days
Features
Read full description

Most people drift. You are done drifting. RankZero is a discipline app for people who are done making excuses. Pick three non-negotiables, hold them every single day, and build a streak you refuse to break. Your future self is a character you level up one disciplined day at a time. No fluff. No streak-shaming gimmicks. Just the standard, held daily. THE DAILY LOOP - Choose three non-negotiables that actually matter (train, read, no feed before noon, cold shower, whatever your standard is) - Check them off, report back, and tick your streak - A built-in forgiveness mechanic means one missed day never wipes you out BUILD YOUR FUTURE SELF - Your character evolves as you level up, from a dormant form all the way through eleven forms of ascension - Earn XP every day you hold the line - Share your rank card when you hit a milestone GUIDED JOURNEYS - Escalating skill sprints that ramp a single discipline day by day (deep work, stillness, daily movement) - Hit the day's target to advance. Miss it and the day holds. No skipping. - Finish to earn a badge and a reward STAY ACCOUNTABLE - Add friends by handle or code and compare streaks - Climb a weekly league against other people holding the standard - You stay a pseudonym. Friends only ever see your streak and level, never your habits or reflections. NEVER LOSE YOUR PROGRESS - Sign in with Apple to back up your streak, level, and character to your account - Switch phones and pick up exactly where you left off - Hide My Email supported, so you can stay private RANKZERO PRO The daily loop and your squad are free forever. Pro unlocks the deep climb: - Your character, all the way through every evolution - The full AI coach, tuned to your reason for starting - Focus timer and the weekly gauntlet - Every guided journey - Level-up clips of your evolved form Pro is an auto-renewing subscription. A free trial is available. Price shown in-app; it renews until canceled, and you can cancel anytime in your Apple account settings. Comfort is a slow way to lose. Build the streak. Become the man. RankZero is a product of OriKone LLC. Privacy: https://rankzeroapp.com/privacy Terms: https://rankzeroapp.com/terms

Screenshots

Under Siege4 screens
RankZero4 screens

Verdict

The call

The clearest difference is in-app purchases: RankZero at none against Under Siege's 2. On price, update cadence, 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. Under Siege sells 2 in-app purchases, starting at $5.99 per month. RankZero asks for nothing beyond the download.

UpkeepUpdate frequency

Under Siege ships an update every 2 days, RankZero every 3 days. The most recent releases landed on October 14, 2026 and October 16, 2026 respectively.

Scorecard1 real difference · 8 level
Under Siege versus RankZero: the parameters behind the verdict, then further details
ParameterUnder SiegeRankZero
PriceFreeFree
Rating—4.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 2 days — betterEvery 3 days
AdsYesYes
In-app purchasesYesNo — better
Monetization—Free with in-app purchases
DevicesiPhoneiPhone
Requires iOS16.416.4
Further details — not scored
Size151 MB303 MB
Age rating12+12+
DeveloperApps That Care OUOriKone LLC

In-app purchases

2 purchases

Under Siege

Subscriptions2
  • Under Siege Premium (Monthy)$5.991 Month
  • Under Siege Premium (Yearly)3 Days trial$29.991 Year
None

RankZero

No in-app purchases

Questions

Is Under Siege free?
Under Siege is free to download, with in-app purchases available.
Is RankZero free?
RankZero is free to download, with no in-app purchases.
Do Under Siege or RankZero have ads?
Both Under Siege and RankZero show ads.
Which is updated more often, Under Siege or RankZero?
Under Siege ships an update every 2 days, and RankZero every 3 days. Most recently, Under Siege was updated on October 14, 2026 and RankZero on October 16, 2026.

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