Idle Spiral v3.0.85 • New Hanoi tower: Dynamics, six layers deep, with a new upgrade, Attractor Pulse. • New Hanoi upgrades: Mathematical Induction (T100) can reach several r goals of a challenge in one attempt, and Transfinite Induction (T104) can take several tiers in one ω prestige. • New Theory upgrades: Golden Spiral raises every theorem's study speed, and Euler Spiral raises z's Ω. • 12 more Tornado unlocks from T131 to T250 raise upgrade limits and auto-buy amounts. • Completing the Drain Challenge grants a new spiral design, Uzushio. • On the Tornado screen's Special Reward page, tap "Next unlock" to see every Tornado unlock by tier. • Auto Prestige can wait for a multiple of your P, such as ×100. • The challenge list has Spiral and Battle tabs and can hide completed challenges. • Battle hints now explain the main stats and many rewards. • Hanoi asks before you retreat from a climb. • The rings around the spiral now start hidden; turn them on with Ring Visibility in Settings. • Buying an upgrade no longer resets the spiral, and the tip no longer flickers. • Linking an account that already exists no longer fails. • R and P auto-buys stay on when you return to their tab, and battle Auto Start is now saved. • The floating cloud button now appears only on the main screen, so it no longer covers buttons on other screens. • ×10 and ×25 price only the levels they buy and stop at the max level. • Fixes for the Drain and Fortitude Challenges, saves that would not open, loot stutter and the Water Spiral's passive. • Many other fixes to display, controls and localization.

Idle Spiral v3.0.51 • Added more late-game Tornado milestones, Professor Challenges, and advanced Z-Reactor upgrades. • Improved Nuke and Scavenger controls and late-game Battle progression. • Improved save recovery, daily reward refresh, and account verification. • Improved main spiral rendering performance and presentation controls. • Fixed offline Formula progress, very small Battle rewards, legacy-save compatibility, navigation, localization, and UI issues.

Idle Spiral v3.0.41 • The Q.E.D. Pack is now available on mobile and grants 100 shared Idle Mileage. • Improved save recovery and made cloud-account recovery and deletion actions clearer and safer. • Rewarded ads now begin preparing immediately when requested, and timed rewards remain available after temporary ad failures. • Purchasable upgrades are now highlighted consistently. • Added the latest shared save validation and repair, offline-progress accuracy, localization, rendering, performance, and stability fixes from PC.

Idle Spiral v3.0.40 • Improved save recovery and made cloud-account recovery and deletion actions clearer and safer. • Rewarded ads now begin preparing immediately when requested, and timed rewards remain available after temporary ad failures. • Purchasable upgrades are now highlighted consistently. • Added the latest shared save validation and repair, offline-progress accuracy, Q.E.D. catalog, localization, rendering, performance, and stability fixes from PC.

Idle Spiral v3.0.31 • Rebuilt the Theory and Theory Upgrade screens for clearer formulas, rewards, materials, tabs, and touch controls. • Fixed duplicated first-launch tutorials and kept the cloud button clear of tutorial content. • Tapping a locked bottom navigation icon now explains which feature it unlocks. • Added the latest shared save, formula display, spiral rendering, and runtime stability improvements from PC.

Idle Spiral v3.0.27 • Rebuilt the mobile Settings screen with clearer General, Progress, and Data tabs, improved touch targets, safe-area support, and a consistent bottom-right close button. • Cloud restore now presents summaries of both local and cloud progress before asking which save to use. • Improved account-link failure messages and recovery guidance. • Improved localization and presentation across the tutorial, Shop, and Design screens. • Fixed gameplay spirals and axis graphics appearing over screens that should hide them. • Reduced unnecessary mobile UI work and included the latest advanced-save performance and Hanoi stability fixes from the PC version. • Improved iOS ad attribution configuration for mediated ads.

Idle Spiral v3.0.21 • Fixed Battle screens reopening in the wrong state after an encounter was reset or the screen was closed. • Fixed enemy attack progress appearing frozen while high-speed or four-line Battle calculations were completing. • Improved iOS auto-prestige number entry, including full-width digits, localized decimal separators, and exponent notation. • Reduced recurring work performed by hidden legacy UI for smoother gameplay. • Prevented repeated advertisement-consent retries after a definitive result while retaining bounded recovery from temporary failures. • Improved performance and startup diagnostics without adding work to normal gameplay.

Idle Spiral v3.0.20 • Added reroller selection to the mobile Battle preparation screen. • Restored the Nuke and Scavenger settings that could disappear on mobile because legacy and current UI references were incompatible. • Reworked Challenge ordering and unlock presentation, including all Infinite Challenge variants. • Improved localized Challenge titles and formula-symbol rendering. • Fixed Challenge scrolling and detail presentation so the list remains stable and usable. • Added finer first-minute performance diagnostics to help identify rare startup stalls without increasing normal gameplay work. • Strengthened release QA for shared advertisement and in-app purchase telemetry.

Idle Spiral v3.0.19 • Watching a rewarded ad now always grants the reward. If the timed reward bubble ran out while the ad was still on screen, the reward was being discarded on return. • The 7th and 8th Z Reactors (Study and Loot) now appear on mobile. They unlock at Tornado Prestige 33 and 35, but the mobile screen was hard-wired to six reactors and never showed them. • Fixed the Z Reactor fill ratio buttons: the 70% and 80% buttons were reading the wrong currency balance. • A newly unlocked Equation no longer shows "0 s" forever. The remaining time was reported as zero until the Equation reached level 1, which made a working Equation look broken. • The Equation select button is now dimmed when every Equation slot is in use, instead of silently doing nothing when tapped. • Fixed the Settings screen so the tick rate row is no longer hidden behind the Credits box. • Critical and Super Critical rate beyond the usable roll cap is now converted into damage instead of being silently wasted. Existing saves receive this automatically. • Fixed Battle reward terms that could overwrite each other and fail to apply. • Reduced recurring TEXDraw and Theory processing to improve mobile CPU and battery usage. • Included fixes for Auto Loot persistence, Hanoi screen transitions, Tornado Prestige requirements, Spiral graphics settings, cloud-session refresh, and Daily Bonus time handling.

Idle Spiral v3.0.16 • Integrated the latest PC spiral, rendering, and shared runtime improvements. • Older mobile saves now repair missing Equation and Battle slots without discarding existing progress. • Fixed Battle navigation conflicts that could show the legacy screen, hide difficulty options, or leave input locked. • Removed legacy duplicate purchase controls so purchases and restores use only the shared store module. • Fixed the Settings credits overlap and the shared R/P automation toggle state. • Added bounded ad-provider retries and clearer failure diagnostics to prevent one failing device or provider from retrying indefinitely.

Idle Spiral v3.0.14 • Added the new ribbon-based main spiral renderer from the PC version, with mobile performance controls retained. • Added Unity Ads bidding through the shared mediation module as additional ad demand, while keeping ad preparation independent from startup. • Expanded save migration and recovery to cover every previously published mobile save layout. • Fixed several late-game Battle issues involving progression, rewards, attack speed, and legacy save repair. • Fixed progression and balance issues affecting Fix Point, Banach, and the Tower of Hanoi. • Upgraded the mobile project to Unity 6.5.7 and expanded automated release QA for saves, monetization, rendering, and performance.

Idle Spiral v3.0.10 • Replaced the mobile advertising and purchase integrations with the shared, actively maintained Idle System module. • Improved store initialization, retry, purchase restoration, failure reporting, and protection against duplicate or uncommitted consumable grants. • Fixed Theory Upgrade and Formula Fragment values not appearing correctly on mobile. • Fixed leaving Challenge sometimes locking all input until the game was restarted. • Fixed missing Equation formulas, overlapping card content, and excessive equation rendering work. • Rebuilt the DLC storefront with UI Toolkit. It now uses real store product data and clearly disables unavailable purchases instead of showing placeholder prices or artwork. • Fixed stale Battle rewards and several player/enemy spiral rendering and layout issues. • Expanded release QA for purchases, navigation recovery, localization, and mobile performance.

Idle Spiral v3.0.9 • Fixed Theory Upgrade and Formula Fragment values not appearing correctly on mobile. • Fixed leaving Challenge sometimes locking all input until the game was restarted. • Fixed missing Equation formulas, overlapping card content, and excessive equation rendering work. • Rebuilt the DLC storefront with UI Toolkit. It now uses real store product data and clearly disables unavailable purchases instead of showing placeholder prices or artwork. • Fixed stale Battle rewards and several player/enemy spiral rendering and layout issues. • Expanded release QA for purchases, navigation recovery, localization, and mobile performance.

Idle Spiral v3.0.8 • Added the Hanoi tower and its shared progression UI to mobile. • Fixed R-upgrade content occasionally appearing blank immediately after loading a save. • Fixed Challenge and Hanoi navigation, mobile safe-area layout, and close-button behavior. • Reduced mobile UI refresh work and improved Hanoi rendering on portrait screens.

Idle Spiral v3.0.7 • Improved safe migration for older mobile and PC save layouts and added clearer recovery diagnostics. • Fixed purchase, prestige, and timed-reward dialogs becoming unresponsive after the first use. • Reduced rewarded-ad wait times and now honors rewards when an ad cannot be delivered. Closing an ad early still never grants a reward. • Integrated shared fixes for spiral and battle rendering, milestones, automation, offline Formula progress, and stability.

Idle Spiral v3.0.6 • Further reduced startup time, CPU usage, and battery consumption by deferring hidden UI and suspending invisible rendering. • Improved Challenge, Achievement, Daily Bonus, account, and milestone screen initialization and responsiveness. • Improved ad, purchase, and store startup recovery during temporary failures. • Fixed Tornado Prestige controls shifting off-screen on tall mobile displays. • Added further progression and stability fixes shared with PC.

Idle Spiral v3.0.5 • Improved compatibility when migrating saves from older mobile versions. • Further reduced CPU and battery usage by pausing hidden UI and formula rendering. • Improved Memory of Formula startup behavior by loading it only when opened. • Improved ad and purchase initialization, bounded retries, and recovery from temporary network or store failures. • Added further shared PC/mobile progression, localization, diagnostics, and stability fixes.

Idle Spiral v3.0.4 • Improved local-save reliability, validation, and recovery while preserving compatibility with existing PC/mobile data. • Reduced CPU usage and battery consumption by stopping hidden UI work and optimizing frequently evaluated formulas, upgrades, and spiral rendering. • Reduced intermittent stalls during gameplay and improved simulation timing after long frame gaps. • Improved Challenge and Battle preparation UI behavior and fixed additional spiral-rendering issues. • Advertisement readiness no longer delays startup or Offline Rewards, and temporary load failures recover more reliably. • Added further startup diagnostics and stability fixes.

Idle Spiral v3.0.3 brings together all of the recent mobile updates. Save data and accounts • PC and mobile now use the same JSON save structure. • Existing mobile data is migrated automatically. • Account linking and the shared save foundation prepare safe PC/mobile data transfer. Data sync will be enabled in a coordinated rollout with the corresponding PC update. • Shared Mileage has been added. Eligible past Spiral Point and DLC purchases are recognized automatically and receive retroactive Mileage rewards. Rewards and purchases • Daily Bonus is now a server-verified 14-day cycle and includes Mileage rewards. • Purchase screens now clearly show their Mileage rewards. Performance and reliability • Startup no longer waits for offline-reward preparation before entering the game. • CPU use, battery consumption, hidden-screen updates, and spiral rendering have been optimized. • Ad and in-app purchase loading now recover more reliably from temporary failures. UI and gameplay fixes • Offline Summary, Achievements, Memory of Formula, cloud/account, Daily Bonus, and Battle preparation screens have been rebuilt and polished. • Battle rewards now use a responsive grid consistent with the PC version. • Fixed missing icons, unreadable text, unsafe screen edges, visible scrollbars, lost scroll position, and unlocalized cloud text. • Fixed missing or incorrect player/enemy spiral rendering during Battle. • Additional startup, save, UI, and crash fixes are included.

Idle Spiral v3.0.2 brings together all of the recent mobile updates. Save data and accounts • PC and mobile now use the same JSON save structure. • Existing mobile data is migrated automatically. • Account linking and the shared save foundation prepare safe PC/mobile data transfer. Data sync will be enabled in a coordinated rollout with the corresponding PC update. • Shared Mileage has been added. Eligible past Spiral Point and DLC purchases are recognized automatically and receive retroactive Mileage rewards. Rewards and purchases • Daily Bonus is now a server-verified 14-day cycle and includes Mileage rewards. • Purchase screens now clearly show their Mileage rewards. Performance and reliability • Startup no longer waits for offline-reward preparation before entering the game. • CPU use, battery consumption, hidden-screen updates, and spiral rendering have been optimized. • Ad and in-app purchase loading now recover more reliably from temporary failures. UI and gameplay fixes • Offline Summary, Achievements, Memory of Formula, cloud/account, Daily Bonus, and Battle preparation screens have been rebuilt and polished. • Battle rewards now use a responsive grid consistent with the PC version. • Fixed missing icons, unreadable text, unsafe screen edges, visible scrollbars, lost scroll position, and unlocalized cloud text. • Fixed missing or incorrect player/enemy spiral rendering during Battle. • Additional startup, save, UI, and crash fixes are included.

Improved rewarded-ad initialization, consent handling, loading, and recovery from interrupted callbacks. Closing an ad before earning its reward no longer grants the reward incorrectly. Expanded failure diagnostics to help us identify and resolve ad-delivery issues more quickly.

Idle Spiral v3.0.0 Unified the PC and mobile foundations and added cloud account integration and shared Mileage. This update also improves save migration, UI, performance, and stability.

- Fixed an issue where the acquisition amount of Memory of Formula was incorrect. - Fixed an issue where the equation notation for Equation Level was not being displayed. - Fixed an issue where the Equation Level was not being updated properly.

Memory of Formula is now implemented on Mobile! With this change, all existing offline bonuses have been removed and replaced with a time boost. We encourage all users, even those who have been offline for a long time, to take this opportunity to play Idle Spiral!

Fixed an issue where ads were being displayed as test ads.