Keep On Line
NextGen Software Limited Liability Company Games iPhoneiPadiPod touch
Keep On Line is a free Games app for iPhone and iPad by NextGen Software Limited Liability Company. Rated 3.9/5 from 55 ratings. Requires iOS 15.0.
- Rating
- 3.9
- 55 ratings
- Price
- Free
- on the App Store
- Size
- 29 MB
- Age 4+
- Updated
- Oct 25
- 2026 · v2.1
Screenshots
About Keep On Line
A little marble. A winding path. Just one more roll. Keep On Line returns with nine little worlds and a simple challenge: stay on the line. Drag to steer through floating gardens, neon nights, coral reefs and quiet observatories. Find your rhythm as the path gets faster and the turns get tighter. Choose your route at branching paths, collect gems and chase a new personal best. • Endless: a fresh course each run, with one optional continue. • Daily line: the same course for everyone that day, with no continues. • Fifteen challenges to clear and bonus gems to earn. • Nine worlds to discover through play. • Collect marble colors and trails, including optional paid exclusives. • Switch between an angled 3D view and a classic overhead view. • Music, sound effects and optional haptic feedback. Free to play with ads and optional in-app purchases. Golden Hour includes its exclusive marble, all nine worlds and removal of automatic ads. Other cosmetic packs include only the marble and trail shown. Worlds can also be unlocked through play. Extra lives are single-use continues for Endless only. Your progress is stored on your device. Purchases and ads require an internet connection. Available in English, Spanish, Turkish, Brazilian Portuguese, French, German, Japanese, Korean, Italian, Arabic and Traditional Chinese.
Ratings & reviews
3.9
55 ratings
What’s new
Version 2.1 · Updated October 25, 2026
Eight new gem marbles and six trails expand the collection. Challenge, daily gift and mission rewards have been rebalanced, with optional score-card frames to collect. Daily gift reminders now wait until after your first run. This update also brings 11 languages and refined touch and tilt controls.
Play today's Sudoku puzzle
A quick 6×6 Sudoku every day; levels grow to the classic 9×9. A free daily puzzle from Fiplay, same board for everyone. It plays right here, no download.
App privacy
The developer, NextGen Software Limited Liability Company, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers: Device ID
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Location: Coarse Location
- Identifiers: Device ID
- Usage Data: Product Interaction, Advertising Data
Used for: Third-Party Advertising, Developer’s Advertising or Marketing, Analytics, App Functionality
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Diagnostics: Performance Data, Other Diagnostic Data, Crash Data
Used for: Third-Party Advertising, Developer’s Advertising or Marketing, Analytics, App Functionality
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Keep On Line | 3.9 / 5 (55 ratings) | Free | October 25, 2026 | |
| Free Rider HD: Bike Game | 4.5 / 5 (3,980) | Free | Oct 25, 2026 | Compare |
| SHREDD | 4.7 / 5 (897) | Free | Jun 17, 2026 | Compare |
| Remote Viewing Tournament | 4.8 / 5 (1,076) | Free | Oct 29, 2025 | Compare |
| Star Jolt: Retro Space Arcade | 4.8 / 5 (842) | Free | Jan 12, 2026 | Compare |
| Legendary Pilots | 3.8 / 5 (18) | Free | Jan 6, 2026 | Compare |
| Ultimate Racing 2D 2! | 4.4 / 5 (189) | Free | Jun 16, 2024 | Compare |
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