Exponential Idle1.4.40 - App Store

Play Exponential Idle, a math-inspired incremental game. Your goal is to stack up money by taking advantage of exponential growth. To do so, you have to step through time by tapping the equation or simply let the time follow its course. You can perform change of variables to accelerate the process, buy upgrades, get rewards, and unlock achievements while earning virtual money.

Version History - Two new Custom Theories: 'Magnetic Fields' and 'Basel Problem'.
- Updated the Riemann Zeta Function custom theory.
- Added a max currency label in the publication popup of Custom Theories.
- Added the τ value of the active Custom Theory on the offline calculation screen.
- Fixed: Some forms of the custom theory URL were not considered as being in the official repository.
- Fixed: Variable 'b' of the Riemann Zeta CT could not be fully bought by the auto buyer.
- Fixed: API - The 'Keyboard.NUMERIC' property was not behaving as expected for non-English OS languages.
- Fixed: API - Crash when providing invalid quaternary entries. 1.4.40 03/10/2025 Fixed: Leaderboard metadata was incomplete.
Updated localization. 1.4.38 01/09/2025 Fixed: Issue with how rewards were counted.
Fixed: The app name contained a wide space on the home screen. 1.4.37 01/06/2025 Fixed: The game thread could stop working when coming back to game in some occasions. 1.4.36 12/15/2024 New Custom Theory: Riemann Zeta Function.
Fixed: The offline calculation screen could appear for times less than 2 minutes.
Fixed: Stars would stop accumulating when an infinity was reached.
Fixed: The language selection screen could have a white background on first launch. 1.4.35 12/15/2024 Fixed: The leaderboard f(t) value wasn't based on 'Lifetime f(t)'.
Fixed: Some Custom Theories could sometime timeout prematurely. Increased the timeout to 15 seconds.
Fixed: Some typos in translations. 1.4.34 10/17/2024 Custom Theory SDK:
- Fixed: Properties of stateful UI components did not always reflect the displayed value.
- Fixed: It was possible to make recursive calls to a theory function and crash the game. 1.4.33 04/06/2024 - Two new Custom Theories: Fractional Integration and Fractal Patterns
- The tau contribution from official Custom Theories have quadrupled.
- The tau limit has also been increased.
- Fixed: The theory automator freeze.
- Fixed: Official Custom Theory indices.
- Fixed: Formatting in the save slot window.
- Various additions to the Custom Theory SDK. 1.4.32 04/01/2024 Fixed: Custom Theories would sometimes generate an error when the game is closing.
Fixed: Numerical values in the summary bar would sometimes wrap to the next line.
Added two more save slots. 1.4.31 03/19/2024 - New language: Lithuanian!
- Fixed: Music could not be turned off on some devices.
- Fixed: The game was not always saved when closing the app.
- Custom Theories:
- Fixed: The theory list did not assign the correct symbol and other theories were not really sorted by name.
- Custom Theory API:
- Fixed: Sliders did not correctly handle 'minimum' and 'maximum' in the constructor.
- Fixed: CustomCost with 'max' buy amount did not work.
- Fixed: Milestones did not update when 'maxLevel' is modified.
- Added a grace period of 1 to 2 seconds (randomized) to the acceleration button.
- Slowed down the deceleration of the acceleration (I know... it sounds strange).
- Added a decimal to the mantissa of b, db, and μ when the exponent is over 10,000.
- Fixed some UI glitches.
- Fixed some exploits.
- Fixed a bad behavior with bulk purchases and auto-buyers, e.g., buy amount is x10 and max level is 8. 1.4.30 01/12/2024 - Improved list of Custom Theories
- Added 'Slider' to API
- Added star rewards to API
- Fixed various issues in SDK
- Minor UI fixes 1.4.29 05/15/2022 - New language: Serbian (Cyrillic)!
- Two new Custom Theories.
- Increase tau limit of Custom Theories to 1e150.
- Custom Theory API: Added custom variables to the MathExpression.
- Custom Theory API: Added 'get3DGraphTranslation'.
- Custom Theory API: The tertiary equation bounding box now adapts to its content.
- Various bug fixes 1.4.28 05/04/2022 Fixed: Custom Theories - Crash when there are no regular upgrades.
Fixed: Save slots could be overwritten on rare occasions when switching slot. 1.4.27 04/11/2022 - New language: Czech!
- Theory SDK: Added a way to provide a cumulative and max function to custom cost models.
- Theory SDK: Added a way to display milestones and publication goals in terms of the currency.
- Fixed: Having an auto-buyer without the 'Buy All' button didn't allow to display the upgrade toggles.
- Fixed: The active Custom Theory could get deselected.
- Fixed: Time and date format in the language popup. 1.4.25 03/22/2022 - Added onPressed and onReleased to the Button API.
- The URL of a Custom Theory can now be copied to clipboard.
- Official custom theories are now hard capped to 1e100τ.
- Fixed: Progress of achievements in the category 'Custom Theory' was not implemented.
- Fixed: During the 1.4.21 update, T9 could display the wrong upgrades until restarting the game.
- Fixed: The value of tau could be miscalculated in custom theories. 1.4.24 01/29/2022 - Fixed: Offline calculation screen was always displayed.
- Fixed: Math Expressions did not consider tau from theories.
- Fixed: Rewarded Ads had a strange behavior (players were not penalized).
- Fixed: Game could still run in background
- Minor changes to the API. 1.4.22 01/17/2022 Semi-major update: Make you own theories or play theories made by other players. Custom theories become available after completing the story. 1.4.21 01/16/2022 - 3 new languages: Latvian, Portuguese (Portugal), and Slovak!
- New 'Light' theme.
- Fixed: Two variables did not have proper subscripts in Lemma 7.
- Fixed: Some upgrades with equal cost could display different number of decimals.
- Fixed: Popups could sometimes be shown over the offline progress screen.
- Fixed: The tickspeed of theory 1 was not properly updated after publishing. 1.4.20 07/22/2021 - Fixed: The last milestone in Theory 4 wasn't doing anything (it does now).
- Fixed: Theories 2, 4, and 6 could get abnormally high values of 'q' and 'r' after offline progress.
- Fixed: Inconsistent rounding in the offline progress screen.
- Fixed: Secret Achievement 8 was more permissive than it should.
- Fixed: It was possible to buy a milestone that was dependant on another refunded one. 1.4.19 06/20/2021 - Added parsing of numbers the form 1.0e-5.
- Fixed: Tau was not following the same rounding rule as currencies.
- Fixed: Minigame popups could be popped twice.
- Fixed: Theory 8 started before the first purchase.
- Fixed: An equation was not updated correctly in Theory 9.
- Fixed: Achievements for spent stars did not consider minigame purchases. 1.4.18 06/04/2021 - 2 new languages: Norwegian and Ukrainian!
- Fixed: The app would silently crash when exiting the game using the back button.
- Fixed: The cost of Prestige and Supremacy upgrades didn't follow the same formatting rule as their currencies.
- Fixed: Currencies will now be rounded down and costs will be rounded up when displayed.
- Fixed: Music continued to play in background on some devices.
- Fixed: Some expressions generated cryptic exceptions. 1.4.17 05/13/2021 - 3 new languages: Arabic, Farsi, and Hebrew!
- Added the eye icon to the publication window.
- Reduced the overlap of variables labels that could happen in some specific occasions.
- Fixed: Parts of Theory 9 could start too early.
- Fixed: Setting music to 'off' could still generate static noise when connected to a Bluetooth device. 1.4.16 04/28/2021 - 1 new language: Indonesian!
- The values of 'b' and 'mu' are now displayed only with scientific notation.
- Fixed: The UI was too big on small screens.
- Fixed: Colors on MiUi OS (take 2).
- Fixed: Cost comparison was wrong with permanent levels in some occasions.
- Updated translations: French, Japanese, Korean, Vietnamese. 1.4.15 04/19/2021 - Increased the contrast of both themes.
- 1 new language: Korean!
- Fixed: Missing characters in the Chinese Traditional font. 1.4.13 04/12/2021 - The game will now save after a graduation or a publication.
- 1 new language: Japanese!
- Changed the Chinese fonts to sans serif to improve readability.
- Fixed: Slight misalignment in the summary bar.
- Fixed: Equation of Theory 3 had an offset depending on the device's DPI. 1.4.12 04/10/2021