Gamma vs Digi Invaders
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Gamma
This app allows you to play your favorite PlayStation 1 games on your device. It offers enhanced graphics, controller customization, and cloud syncing for save states. Enjoy a superior gaming experience with easy file import and cheat code support.
- Enhanced hi-resolution graphics
- Customizable controller skins
- Save state syncing via cloud
- Cheat codes system
- Wide file format support
- Hardware controller support
Read full descriptionHide full description
You heard about Gamma, the BEST PlayStation(tm) 1 game emulator, now see it for yourself! Gamma is a fully featured video game console emulator that's simple to use. Play your favorite console games in seconds. Gamma has the best looking user interface, complete with instant cover artwork, custom controller skins, previews, save state syncing, and more! It has achievements, enhanced hi-resolution graphics up to 8x resolution, supports external controllers and screen mirroring for multiplayer, and even supports analog controls. There's even a built-in skin editor, a community download center to share saves, and guides for those who are new to emulation. It's easy to use and fun to play! Featuring: Cheat codes system: - Your favorite cheat codes are ready to go Incredibly compatible: - Try your favorite game and be amazed - We have the best game compatibility Graphically superior: - Renders at the highest resolution - Fullscreen stretch mode in landscape viewing - Widescreen options for 3D games - Beautiful controller skins supporting analog controls File support: - CUE+BIN support - CHD, PBP, ISO, and MDS - Multidisc support - 7zip, Zip, RAR, and ECM archives Cheat Codes: - Access all your cheat codes right in the game! Usability: - Screenshots to share the action - Memory card management - Help center with support if you're stuck Hardware Controller Support: - Supports your favorite console, PC bluetooth, and MFi game controllers. - Bluetooth & wired keyboards are also supported! - Analog sticks can be mapped to analog controls on games that support analog sticks! Sync: - Use your Google Drive or DropBox service to sync your files. - Automatically backs up your save states. Import options: - From your browser - From your device's storage that is also easily transferred to by AirDrop - From your desktop, just drag and drop Save States: - Save and load a game at any point. - Automatically save your progress. Controller Skins: - Comes with well-crafted portrait and landscape controllers. - Create your own controller skins. Game Cover Artwork: - Sets your game cover artwork to your titles. Thank you for 15 years of your support! * Gamma is in no way affiliated with Sony, Sony Interactive Entertainment Inc., Sony Corporation, Sony Group Corporation, PlayStation, or any of their products. Gamma is in no way affiliated with PPSSPP, Delta, Folium, and RetroArch. Sony is a registered trademark or trademark of Sony Group Corporation. PlayStation, PSone, and DUALSHOCK are registered trademarks or trademarks of Sony Interactive Entertainment Inc. * Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ * Privacy Policy and Gamma Service Terms: https://www.zodttd.com/gamma/policy/
Digi Invaders
Match numbers to destroy incoming invaders in this addictive arcade game. Experience classic LCD gaming with modern mobile gameplay, featuring 10 challenging levels and a high score system. Perfect for quick sessions and score competition.
- Number matching gameplay
- 10 challenging levels
- High score system
- Customizable controls
- Retro LCD display
- No ads or IAPs
Read full descriptionHide full description
DIGI INVADERS Casio-style Digi Invaders — now with a real calculator and music. NEW • Full calculator mode — add, subtract, multiply, divide & more • Tune / Melody mode — play notes, demos, and record your own tunes • Authentic LCD glass display or classic green OG look • LCD brightness + Easy / Medium / Hard difficulty • Classic Digi Invaders gameplay with UFO bonus scoring Game, calculator, and melody machine — all in one.
Screenshots
Verdict
The clearest difference is price: Gamma at Free against Digi Invaders's $0.99. Gamma also leads on update cadence (every 5 days vs every 5 weeks) and iOS requirement (15.0 vs 18.1). Digi Invaders's advantage is in-app purchases (none vs 5) and ads (none vs shown). On device support 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
Gamma is free to download; Digi Invaders costs $0.99 up front. Gamma sells 5 in-app purchases, starting at $0.99 per month. Digi Invaders asks for nothing beyond the download.
Gamma ships an update every 5 days, Digi Invaders every 5 weeks. The most recent releases landed on October 31, 2026 and October 15, 2026 respectively.
| Parameter | Gamma | Digi Invaders |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.8 (11K ratings) — better | — |
| Positive reviews | 83.8% of reviews | 100.0% of reviews — better |
| Number of ratings | 11K — better | — |
| Update frequency | Every 5 days — better | Every 5 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.1 |
| Further details — not scored | ||
| Size | 150 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | ZODTTD LLC | Simon Wolf |
Customer experience
Gamma
Digi Invaders
Bugs and requests
Gamma
Reported bugs
3 issues- Crashes when customizing controls
- Some games freeze or have graphical issues
- Dropbox sync not working properly
Requested features
4 requests- Multiple controller support
- Customizable button layouts
- More display/graphics settings
- Ability to load .cue files
Digi Invaders
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Gamma
- Great Supporter$0.991 Month
- Fantastic Supporter$1.991 Month
- Incredible Supporter$4.991 Month
Show 1 moreShow fewer
- Greatest Supporter Of All Time$9.991 Month
- Gamma Pro - Remove Ads$4.99
Digi Invaders
No in-app purchases









