Digit Invader Calculator vs Stellar Crusade
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Digit Invader Calculator
This app combines a functional calculator with a retro arcade game inspired by classic calculator interfaces. It offers automatic game saving, a high score list, and multitasking support on iPads. A scaled-down version is also available for Apple Watch.
- Retro calculator game
- Basic calculator functions
- Automatic game save
- High score list
- iPad Stage Manager support
- Apple Watch version
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- The calculator includes basic functions, while the Digit Invader game replicates the old-school calculator gaming experience. - The game state is automatically saved when the user explicitly pauses or implicitly switches to a different app, allowing them to resume later. - A high score list is provided for users to challenge themselves. - Compatible with Stage Manager on supported iPads, enabling multitasking while having fun occasionally. - A special scaled-down version of Digit Invader is available for Apple Watch, allowing users to enjoy the game during exercise breaks or while waiting in line. - Localized in Japanese, Traditional Chinese, and Simplified Chinese..
Stellar Crusade
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Dive into the thrilling universe of "Stellar Crusade," a 2D space shooter game designed exclusively for Apple Watch. Embark on a daring quest across dimensions, where you'll pilot your starship against alien forces to prevent an imminent invasion on your Home planet. The Story: After a mysterious portal whisks you away into an alternate dimension, you find yourself at the heart of an alien base, preparing for their next assault on our planet. As the last line of defense, it's your mission to stop their forces, sabotage their plans, and make your path back to Homeland. Game Features: - Engaging Space Combat: Experience smooth, action-packed battles optimized for the Apple Watch. Use intuitive controls to navigate your starship and deploy strategic attacks against waves of alien ships. - Immersive Storyline: Uncover the secrets of the alien race and their past attempts to conquer Earth. Engage with a captivating narrative that unfolds as you progress through the levels. - Challenging Missions: Test your skills with escalating levels of difficulty. Each mission presents unique obstacles and adversaries, requiring you to adapt and strategize. - Upgrade Your Arsenal: Collect power-ups to enhance your starship's weapons and defenses, ensuring you're equipped for the toughest challenges. - Stunning Visuals: Enjoy vibrant graphics and animations that make every battle and journey visually spectacular on your wrist. - New game plus mode for experienced pilots. Looking for a challenge? Try completing the story on higher difficulty and defeat the invaders! - Enhance your piloting skills with Challenge Mode. Play through standalone missions featuring various scenarios and levels of difficulty. Why "Stellar Crusade"? "Stellar Crusade" merges fast-paced action with strategic depth, all within the convenience of your Apple Watch. Whether you're a fan of sci-fi adventures or a lover of classic arcade shooters, this game offers hours of entertainment and a unique gaming experience. Prepare your starship and enter the battle. The fate of the entire galaxy rests in your hands. Are you up for the challenge?
Screenshots
Verdict
The clearest difference is iOS requirement: Stellar Crusade at 13.0 against Digit Invader Calculator's 17.6. On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Digit Invader Calculator ships an update every 9 days, Stellar Crusade weekly. The most recent releases landed on October 22, 2026 and October 4, 2026 respectively.
| Parameter | Digit Invader Calculator | Stellar Crusade |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (9 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 9 — better | — |
| Update frequency | Every 9 days | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPod, Apple Watch |
| Requires iOS | 17.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Daniel Fu Keung Kwan | Mikhail Sevbo |
In-app purchases
Digit Invader Calculator
No in-app purchases
Stellar Crusade
No in-app purchases
Questions
Is Digit Invader Calculator free?
Is Stellar Crusade free?
Do Digit Invader Calculator or Stellar Crusade have ads?
Which is updated more often, Digit Invader Calculator or Stellar Crusade?
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