One in a Trillion vs Grimoire Incremental
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
One in a Trillion
This is an odds-based tapper game where players collect unique eggs with varying rarities. You can build custom cards, compete with friends, and join a community to discover rare items. It offers long-term collection goals and casual competitive gameplay.
- Collect eggs with insane rarities
- Create unique Glyphcards
- Compete in daily leagues and team battles
- Progress through egg incubators and luck enhancements
- Scavenger Hunt eggs with community clues
- Semi-offline play
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One in a Trillion: The Ultimate Collection Game! An odds based tapper game where you compete with friends and the community to hunt rare eggs that range in rarity of 1 in 250 taps, all the way up to the insane 1 in 1,000,000,000,000! Dive into possibly the world’s biggest mobile collection game! Collect eggs with insane rarities, yolk them & build completely unique cards for your collection! Can You Beat the Odds? Ready… Eggy… Go! - No ads, not a single one! - Solo dev passion project with constant updates—your feedback is always welcome! - Simple core gameplay: drag your finger to collect eggs, gems, boosts, and more. - The biggest long-term collection game imaginable. - Over 235+ creatively designed eggs to collect in multiple ways, with more being added regularly. - Complete each egg by collecting it in 5 different ways, including creating Glyphcards. - Glyphcards are a hard earned process to create a totally unique card for an egg, share it with the community & strive for the best collection possible. - Egg rarity ranges from 1 in 250 to 1 in a trillion—pray to the RNG gods or focus on progression! - Progress and enhance your ability to find the rarest eggs through egg incubators & increasing luck sauce base and costs. - Collect special yolks to rest those hands and Instant Play. - Daily rewards, egg boost slots, leagues & prizes every 4 hours. - Optional competitive gameplay includes team battles, daily leagues, player rankings, prizes, and more. - Use Tripply’s & Dubbly Jubbly’s to accumulate insane multiplayer scores - Scavenger Hunt eggs: use clues and chat with the community to discover how to unlock them. - Join our friendly Discord community! - Enjoy semi-offline play. One in a Trillion is a casual collection game you can play for years. Even if the insanely rare eggs seem hard to collect, you can work on creating Glyphcards and compete against friends in daily leagues for prizes. Experience our unique dragging mechanism in the core gameplay, which is more satisfying than traditional clicking or tapping. Multiplayer seamlessly blends effort and luck for a casual take on competitive play. While this game is not idle, fans of incremental or idle games may find enjoyment here too. SUPPORT: Are you experiencing issues? Email the dev at help@hamlab.dev for further help. Alternatively, join our Discord.
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.
- Non-formulaic gameplay
- Branching narrative choices
- Idle and clicker mechanics
- Unlockable mechanics
- Opt-in ads for bonuses
- Single in-app purchase option
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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
Verdict
The clearest difference is ads: One in a Trillion at none against Grimoire Incremental's shown. One in a Trillion also leads on update cadence (every 11 days vs every 3 months). On price, rating, review sentiment and ratings volume 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
Both are free to download. One in a Trillion sells 17 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.
On the App Store both sit at effectively the same score — 4.7 for One in a Trillion against 4.8 for Grimoire Incremental. Both are backed by a comparable volume of ratings — 1.2K and 544 respectively. Written reviews split almost evenly too, at 86% and 87% positive.
One in a Trillion ships an update every 11 days, Grimoire Incremental every 3 months. The most recent releases landed on September 22, 2026 and September 19, 2026 respectively.
| Parameter | One in a Trillion | Grimoire Incremental |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (1.2K ratings) | 4.8 (544 ratings) — better |
| Positive reviews | 86.0% of reviews | 86.9% of reviews — better |
| Number of ratings | 1.2K — better | 544 |
| Update frequency | Every 11 days — better | Every 3 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 78 MB | 70 MB |
| Age rating | 4+ | 9+ |
| Developer | Hamlab AB | Graham Goldstein |
Customer experience
One in a Trillion
Grimoire Incremental
User reviews
One in a Trillion
From 1.2K App Store ratingsWhat we love
- 🚀 Addictive gameplay
- 👍 No ads
- 🚀 Constantly updated
- 👍 Helpful and friendly community
- 🚀 Unique and engaging concept
Room to improve
- 🐛 Occasional bugs and glitches
- 💡 Difficulty progressing without spending money
- 🐛 Unresponsive controls at times
- 💡 Lack of offline/idle progression
Grimoire Incremental
From 544 App Store ratingsWhat 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
One in a Trillion
Reported bugs
3 issues- Inability to log in and sync progress across devices
- Saved progress being lost after updates
- Certain mini-games not functioning properly
Requested features
4 requests- Ability to trade eggs with friends
- More mini-games and ways to earn resources
- Offline/idle progression mechanics
- Customization options for player profiles
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
One in a Trillion
- 20 Yellow gems$1.99
- Add yolk slot$1.99
- 20 yellows gems + 10k blues$1.99
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- 20 yellows gems + 4k reds$1.99
- 20 Yellow gems + special offer2 variants$1.99
- Add yolk slot$2.99
- Clones Pack$2.99
- Space Pack$2.99
- Lomond Pack$2.99
- 50 Yellow gems$3.99
- Add yolk slot$3.99
- 30 Yellow Gems$4.99
- Add yolk slot$4.99
- 100 Yellow gems$6.99
- 150 Yellow gems$9.99
- 250 Yellow gems$14.99
- 500 Yellow gems$24.99
Grimoire Incremental
- Remove Advertisements$6.99
Questions
Is One in a Trillion free?
Is Grimoire Incremental free?
Which has better reviews, One in a Trillion or Grimoire Incremental?
Do One in a Trillion or Grimoire Incremental have ads?
Which is updated more often, One in a Trillion or Grimoire Incremental?
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