Comparison

Kernel King vs Dev Idle

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

Head to head
About

Kernel King

Tap to create an endless stream of popcorn in this addictive idle game. Invest in upgrades to pop faster, earn more, and unlock new poppers. Compete with friends and aim to become the ultimate Kernel King.

Highlights
  • Tap to make popcorn
  • Investments for faster popping
  • Upgrade popper and recipe
  • Offline kernel earnings
  • Unlockable poppers
  • Prestige system
  • Bonuses and multipliers
Features
Read full description

Tap to make popcorn! In this super simple yet insanely addicting game you'll be making more popcorn than you'll know what to do with. Tap to make popcorn in a meeting, during class, on the bus, waiting in line. Once you start popping you won't be able to stop. Your friends and family start to worry about when they haven't seen you in days. You are up to your eyes in popcorn. You begin to dream in popcorn. You only take breaks from popping popcorn to eat popcorn. There is only one goal. Become the Kernel King. Kernel King features: -Simple game mechanics - Tap to make popcorn -Investments to pop even faster - Once you start popping you'll be hard to stop -Upgrade your popper - Earn more kernels per second -Upgrade your recipe - Earn more kernels per click -Upgrade your status - Earn more kernels while you're not popping -Buy a bucket to collect popcorn while you're eating popcorn - Most have figured out how to eat and pop at the same time so you run the risk of falling behind with this tactic -Over 10 different poppers to unlock - Collect them all and show off to your friends -Game Center - Know exactly how close you are to being the king -Share on Facebook and Twitter - Let your friends know how far they are behind -Prestige and pop kernels even faster - It's harder to stay at the top than it is to get there -Bonuses and Multipliers - Earn bonuses and multipliers to start rolling in popcorn Everyone else has already started, but there is still hope. Download today for free and start your journey to the top. There can be only one Kernel King. Are you the one?

About

Dev Idle

Tap to code and build your developer empire, from simple copy-pasting to advanced quantum compilation. Ship versions to earn reputation, unlock permanent upgrades, and eventually IPO for massive boosts. Enjoy an idle game experience with offline earnings and no ads.

Highlights
  • Tap to write code
  • Hire automated developers
  • Ship versions for reputation
  • Permanent upgrades via Lab
  • IPO for massive progress boosts
  • Offline earnings with reports
  • Live Activity for App Review countdown
Features
Read full description

You started by pasting an answer off Stack Overflow. Twelve tiers later you are running an autonomous agent fleet, a server farm and a quantum compiler, and the changelog has started calling the next one The Singularity. Dev Idle is an idle game about being an iOS developer, made by one. Tap to write code, hire the pipeline that writes it for you, then ship a version and do the whole thing again, faster. THE LOOP • BUILD — Twelve generator tiers. Every 10, 25, 50 and 100 you own doubles that tier's output, and there is no last milestone. The tap button starts out as "Write code". It does not stay there. • SHIP — Submit to App Review and bank Reputation, an income multiplier kept until you go public. Your first review takes three minutes, so you ship in your first session; after that it is thirty minutes, like the rest of us. Yes, that is the joke. • LAB — Ships pay Commits for permanent upgrades; milestones mint Pull Requests for a 16-node skill tree. A bad run still pays. • SHOP — Conference Tickets buy time, never gameplay: expedite a review, double an offline haul, or collect eight hours at once. • PASS — Four-week Sprint Pass seasons named Legacy Code, Merge Conflict, Code Freeze… Fifty tiers earned by playing: a badge at 25, a finished mark at 50, the season's accent color at premium tier 50, and a recap of what was collected for you when it ends. • RÉSUMÉ — Twelve career tracks and 59 lines, graded as you play. Most pay Conference Tickets. • IPO — Go public: trade your whole Reputation for Shares and raise the level cap on every Commit upgrade. There is a celebration. Then the horizon moves again. SOMETHING IS ALWAYS ON FIRE • Every so often, prod goes down. Tap the incident to hotfix it for a burst of income. • A daily streak you can see, a Retro voucher worth an hour of production every seventh day, and a welcome-back bonus after three days away. • #general marks your milestones, locked tiers tease what is next, and App Review keeps you posted. AN ORIGINAL SOUNDTRACK Seven loops follow your company as it grows, from lo-fi and jazzy chillhop to synthwave and ambient, and your career unlocks them; one is an 8-bit bonus. Sound effects for every key moment, a jukebox, and separate switches for music, effects and haptics. Silent mode silences the game; your own music keeps playing. THINGS WE CARED ABOUT • No ads. Not between screens, not for a bonus, not ever — there is no ad code at all. • Plays offline, with a proper "while you were away" report. No account, no advertising identifier, no tracking. Your save syncs through your own iCloud. • A Live Activity counts your review down on the Lock Screen and in the Dynamic Island, and says when it is done. • Dark editor themes, because it is that kind of game, and a swag store where Commits and Pull Requests buy original color themes and tap-particle styles. • Release notes you can share as an image. • Twelve languages. • Balanced by simulation, not by vibes. Tier 4 inside two minutes; The Singularity considerably later. FREE TO PLAY, AND MEANT IT Optional purchases shorten the road. Not one of them unlocks gameplay you cannot reach by playing, because a wall you cannot climb is a game you stop opening. Dev Idle Pro — $4.99 a month in the US, with a 7-day free trial for new subscribers: ×2 income, full-rate offline earnings, a bigger daily Ticket bonus, an exclusive editor theme, and every season's premium Sprint Pass track. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless it is turned off at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours of the end of that period. Manage or cancel it in Settings › Apple Account › Subscriptions. Any unused portion of the free trial is forfeited when you buy the subscription. Terms of Use: https://devidle.petrina.me/terms Privacy Policy: https://devidle.petrina.me/privacy-policy

Screenshots

Kernel King4 screens
Dev Idle4 screens

Verdict

The call

The clearest difference is rating: Dev Idle at 5.0 against Kernel King's 4.5. Dev Idle also leads on review sentiment (100% vs 89%). Kernel King's advantage is update cadence (every 6 days vs monthly) and ratings volume (40 vs 1). On price, ads, in-app purchases and monetization model 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. Kernel King sells 10 one-off in-app purchases and Dev Idle sells 10 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Dev Idle holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Kernel King has 40 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 89% of Kernel King's written reviews are positive against 100% of Dev Idle's.

UpkeepUpdate frequency

Kernel King ships an update every 6 days, Dev Idle monthly. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

Scorecard6 real differences · 4 level
Kernel King versus Dev Idle: the parameters behind the verdict, then further details
ParameterKernel KingDev Idle
PriceFreeFree
Rating4.5 (40 ratings)5.0 (1 ratings) — better
Positive reviews89.4% of reviews100.0% of reviews — better
Number of ratings40 — better1
Update frequencyEvery 6 days — betterMonthly
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS8.0 — better26.0
Further details — not scored
Size46 MB19 MB
Age rating4+4+
DeveloperBlake EckertDavid Petrina

Customer experience

Kernel King

All ratings41 ratings
Positive82.9%
Neutral9.8%
Negative7.3%
Written reviews113 reviews
Positive89.4%
Neutral6.2%
Negative4.4%

Dev Idle

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

Bugs and requests

Kernel King

Reported bugs

4 issues
  • Game crashes and forces user to home screen
  • Data loss when game crashes
  • Game won't start without reviewing or advertising
  • Glitches causing loss of progress

Requested features

4 requests
  • Timer mode to track kernels earned
  • Upgrade levels with multipliers for easier progression
  • Better tutorial or onboarding instructions
  • More diverse upgrades and features

Dev Idle

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Kernel King

One-time10
  • Double Kernels Per Second$0.99
  • Double Kernels$0.99
  • Remove Ads$0.99
Show 7 more
  • Kernel Blast$1.99
  • Shaker of Salt$1.99
  • Treadmill$1.99
  • King Kernel$4.99
  • Salt Mine$9.99
  • Kernel Bomb$19.99
  • Forever 20x$49.99
10 purchases

Dev Idle

Subscriptions1
  • Dev Idle Pro7 Days trial$4.991 Month
One-time9
  • Hotfix — 100 Tickets$0.99
  • Starter Pack$1.99
  • Sprint Pass Premium Track$2.99
Show 6 more
  • Monthly Card — 40 a Day$3.99
  • Sprint — 600 Tickets$4.99
  • Overtime$4.99
  • Release — 1,400 Tickets$9.99
  • Major Version — 3,200 Tickets$19.99
  • Enterprise — 9,000 Tickets$49.99

Questions

Is Kernel King free?
Kernel King is free to download, with in-app purchases available.
Is Dev Idle free?
Dev Idle is free to download, with in-app purchases available.
Which has better reviews, Kernel King or Dev Idle?
Dev Idle is rated higher. Kernel King averages 4.5 out of 5 from 40 ratings, while Dev Idle averages 5.0 from 1 ratings.
Do Kernel King or Dev Idle have ads?
Neither Kernel King nor Dev Idle shows ads.
Which is updated more often, Kernel King or Dev Idle?
Kernel King ships an update every 6 days, and Dev Idle monthly. Most recently, Kernel King was updated on November 2, 2026 and Dev Idle on November 6, 2026.

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