Comparison

Exponential Idle vs Grimoire Incremental

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

Head to head
About

Exponential Idle

Engage in a math-inspired incremental game where you strategically stack virtual money through exponential growth. Advance through time, make variable changes, and purchase upgrades to accelerate your earnings and unlock achievements.

Highlights
  • Exponential growth mechanics
  • Time progression
  • Change of variables
  • Buy upgrades
  • Earn virtual money
  • Unlock achievements
Features
Read full description

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.

About

Grimoire Incremental

Engage in a narrative-driven idle or clicker game where your choices shape society and unlock new mechanics. Progress through runs and prestiges with non-formulaic gameplay and optional ads.

Highlights
  • Non-formulaic gameplay
  • Branching narrative choices
  • Idle and clicker mechanics
  • Unlockable mechanics
  • Opt-in ads for bonuses
  • Single in-app purchase option
Features
Read full description

NON-FORMULAIC GAMEPLAY Make real choices through spells to favour, interactions with the populace, and other arcane projects. Focus on combining thematic effects to wield great power. Choose between idle and clicker mechanics as you progress through runs and prestiges. BRANCHING CHOICES Choose how you'll use the magic available to you to shape society, and witness the impact through a changing story and play style. COMPELLING NARRATIVE Experience a broad story arc that grows as you progress, and branches with the choices you make and actions you take. MANY AND VARIED MECHANICS Unlock new ways to make those numbers bigger with practice, research, spells, creations, lifestyle and expeditions. Each new mechanic offers a different twist and provides new opportunities for strategy. NO OBLIGATION Adverts are opt-in for a bonus only. No content is blocked behind ad walls. Single in-app purchase removes ad button and gives boost forever.

Screenshots

Exponential Idle4 screens
Grimoire Incremental4 screens

Verdict

The call

The clearest difference is update cadence: Exponential Idle at every 3 weeks against Grimoire Incremental's every 3 months. Exponential Idle also leads on ratings volume (4.1K vs 544) and iOS requirement (8.0 vs 15.0). On price, rating, review sentiment and ads 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. Exponential Idle sells 4 one-off in-app purchases and Grimoire Incremental sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Exponential Idle against 4.8 for Grimoire Incremental. That said, the two scores are not equally well evidenced: Exponential Idle has 4.1K ratings behind it against 544, so its average is the more settled of the two. Written reviews are what separate them: 92% of Exponential Idle's written reviews are positive against 87% of Grimoire Incremental's.

UpkeepUpdate frequency

Exponential Idle ships an update every 3 weeks, Grimoire Incremental every 3 months. The most recent releases landed on September 22, 2026 and September 19, 2026 respectively.

Scorecard3 real differences · 7 level
Exponential Idle versus Grimoire Incremental: the parameters behind the verdict, then further details
ParameterExponential IdleGrimoire Incremental
PriceFreeFree
Rating4.9 (4.1K ratings) — better4.8 (544 ratings)
Positive reviews91.8% of reviews — better86.9% of reviews
Number of ratings4.1K — better544
Update frequencyEvery 3 weeks — betterEvery 3 months
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better15.0
Further details — not scored
Size95 MB70 MB
Age rating4+9+
DeveloperGilles-Philippe PailleGraham Goldstein

Customer experience

Exponential Idle

All ratings4,100 ratings
Positive98.2%
Neutral0.8%
Negative1.0%
Written reviews268 reviews
Positive91.8%
Neutral2.2%
Negative6.0%

Grimoire Incremental

All ratings544 ratings
Positive96.0%
Neutral1.5%
Negative2.6%
Written reviews107 reviews
Positive86.9%
Neutral5.6%
Negative7.5%

User reviews

Exponential Idle

From 4.1K App Store ratings

What we love

  • 👍 Great and addicting game
  • 👍 Interesting story and educational
  • 👍 Numbers go big
  • 👍 User-friendly with good descriptions
  • 👍 Highly automated progression

Room to improve

  • 🐛 Occasional bugs and glitches
  • ⏱️ Slow progression after initial stages
  • 🕹️ Difficult mini-games
  • 🔒 Harsh time-change penalty
  • 🔋 Potential performance issues on some devices

Grimoire Incremental

From 544 App Store ratings

What we love

  • 🚀 Great game
  • 👍 Simplicity and minimalism
  • 👍 Non-intrusive ads
  • 👍 Engaging gameplay
  • 👍 Rewarding progression

Room to improve

  • 🐛 Occasional crashes
  • 🐛 Slow progress in late game
  • 🐛 Imbalanced builds
  • 🐛 Lack of content variety

Bugs and requests

Exponential Idle

Reported bugs

3 issues
  • Puzzle mini-games not loading correctly
  • Offline progress issues after updates
  • Occasional app crashes

Requested features

5 requests
  • More mini-games and challenges
  • Better explanations for advanced mechanics
  • Adjustable color schemes and visual customization
  • Improved offline progress tracking
  • Smoother performance and optimization

Grimoire Incremental

Reported bugs

2 issues
  • Progress loss on crash
  • Compatibility issues on older devices

Requested features

4 requests
  • More content and updates
  • Better late-game balance
  • Detailed progression tracking
  • Story expansion

In-app purchases

4 purchases

Exponential Idle

One-time4
  • Donate$0.99
  • Permanent Ad Reward$1.99
  • Donate$1.99
Show 1 more
  • Donate$3.99
1 purchases

Grimoire Incremental

One-time1
  • Remove Advertisements$6.99

Questions

Is Exponential Idle free?
Exponential Idle is free to download, with in-app purchases available.
Is Grimoire Incremental free?
Grimoire Incremental is free to download, with in-app purchases available.
Which has better reviews, Exponential Idle or Grimoire Incremental?
Exponential Idle is rated higher. Exponential Idle averages 4.9 out of 5 from 4.1K ratings, while Grimoire Incremental averages 4.8 from 544 ratings.
Do Exponential Idle or Grimoire Incremental have ads?
Both Exponential Idle and Grimoire Incremental show ads.
Which is updated more often, Exponential Idle or Grimoire Incremental?
Exponential Idle ships an update every 3 weeks, and Grimoire Incremental every 3 months. Most recently, Exponential Idle was updated on September 22, 2026 and Grimoire Incremental on September 19, 2026.

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