# Keep On Line — Little worlds. One line. > Guide a ball on a challenging line, avoiding falls to achieve high scores. (iPhone/iPad app by NextGen Software Limited Liability Company.) - Source: https://appshunter.io/ios/app/keep-on-line/id882255727 (this page in markdown: same URL + `.md`) - Developer: [NextGen Software Limited Liability Company](https://appshunter.io/developer/839833996) - Category: Games, Entertainment, Casual, Racing - Price: Free with in-app purchases - Rating: 3.93/5 from 55 App Store ratings · 15 written reviews indexed - Age rating: 4+ - Requires: iOS 15.0 · 29 MB - Languages: American English, Arabic, French (France), German (Germany), Italian, Japanese, Korean, Brazilian Portuguese, European Spanish, Chinese (Traditional, Taiwan) and 1 more - Released: 2014-06-03 - Data updated: 2026-10-29 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/keep-on-line/id882255727/reviews.md ## What is 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. ## Key features - Keep ball on the line gameplay - Challenging and tricky lines - Touch and drag controls - Unlockable ball and theme colors - Live credits for continues - Mix and match color customization ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Remove ads forever | $0.99 | one-time | | 3 Live Credits | $0.99 | one-time | | 5 Live Credits | $1.49 | one-time | | 10 Live Credits | $2.49 | one-time | | Golden Hour Pack | $4.99 | one-time | | Neon Pack | $1.99 | one-time | | Aurora Pack | $2.99 | one-time | | Ember Pack | $2.99 | one-time | | Celestial Pack | $2.99 | one-time | ## Is Keep On Line safe? Keep On Line appears mostly safe based on user ratings. The AppsHunter Safety Score for Keep On Line is 76 out of 100. This assessment is based on 55 user ratings, with an App Store average of 3.9 out of 5. Of 55 App Store ratings, 67.3% point to a safe experience, 16.4% suggest some concerns, and 16.4% point to a risky experience. ## Is Keep On Line legit? Keep On Line appears to be a legitimate app. The AppsHunter Legitimacy Score for Keep On Line is 90 out of 100 points across 7 verification signals from App Store and developer data. ## Recent user reviews (10 of 15) All indexed reviews: https://appshunter.io/ios/app/keep-on-line/id882255727/reviews.md ### 1/5 — No way *2016-11-22* You shouldn't waste your time getting this. You can get a different game like this that is WAY better. ### 2/5 — Don't recommend *2016-06-16* This app is fun but ads pop up EVERYWHERE!!! When I'm in the middle of a game an ad pops up!!! It's so annoying. I deleted this app and downloaded one just like it but with LESS ads. ### 5/5 — The Master! *2015-08-31* I think that if you can master this game, you master just about anything! The gameplay is very challenging, but also super addicting! ### 4/5 — SO ADDICTING!! *2014-07-14* I love this!! ### 4/5 — Nice game *2014-06-22* Good UI. A bit easy compared to 'the line' game. ### 5/5 — Definitely hard, but definitely fun *2014-06-22* They weren't messing around when they said it was hard and addictive. It moves pretty quick and I wish that they started off slow, then sped up - it could add more engagement that way perhaps. But you should try it. A great challenging short term game. ### 4/5 — Keep On Line - good job *2014-06-18* Responsive and simple - will become addictive due to its quick play keeping high scores down. Not a big fan of full screen ads - InApp option to dump ads would be good. Upgrades could use more thought, not convinced they're worth it. ### 1/5 — Boring *2014-06-12* Not addictive at all its lagging and i have the i pod 5 !! Trust me its NOT addictive ### 5/5 — Awesome *2014-06-08* Try it , you will like it. ### 5/5 — Sick Game *2014-06-06* Sick Game. I'm obsessed with it ## Frequently asked questions about Keep On Line ### What is Keep On Line? Keep On Line is a free-to-play game where the objective is to keep a ball on a line for as long as possible. The lines become increasingly difficult to navigate. ### How do you play Keep On Line? You play by touching and dragging a controller to guide your ball along the line. The goal is to maintain control and avoid falling off. ### Does Keep On Line have ads? No, Keep On Line does not contain advertisements. It is a free game with optional in-app purchases. ### What customization options are available in Keep On Line? The Pro Version allows you to choose from 3 different ball colors and 3 different themes, and mix and match them for a personalized experience. ### Can I continue my game if I lose in Keep On Line? Yes, the game includes 2 live credits in the Pro Version that can be used to continue your game from where you left off. ### What devices does Keep On Line support? Keep On Line is available for iPhone, iPad, and iPod devices. ### What is the age rating for Keep On Line? Keep On Line has an age rating of 4+, making it suitable for younger players as well as adults. ### How often is Keep On Line updated? The last update for Keep On Line was on June 21, 2014, to version 1.1. The game was initially released on June 3, 2014. ## Version history (last 4 releases) ### 2.1 — 2026-10-25 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. ### 2.0 — 2026-10-21 Keep On Line is back, rebuilt from the ground up. • Explore nine distinct worlds in 2D or 3D. • Choose your route at branching paths. • Play Endless, a shared Daily Line, and fifteen challenges. • Collect gems, marbles and trails. • Enjoy new music, sound effects and an easier introduction. • Share your score card and challenge a friend. • Optional life packs and permanent cosmetic packs. • English, Spanish and Turkish language support. ### 1.1 — 2014-06-21 - iPad support - New path - UI updates - Bug fixes ### 1.0 — 2014-06-03 No release notes. ## Apps similar to Keep On Line | App | Rating | Price | Category | | --- | --- | --- | --- | | [SHREDD](https://appshunter.io/ios/app/shredd/id844153422) | 4.7 (897) | Free | Games | | [Legendary Pilots](https://appshunter.io/ios/app/legendary-pilots/id6752300450) | 3.8 (18) | Free | Games | | [Ultimate Racing 2D 2!](https://appshunter.io/ios/app/ultimate-racing-2d-2/id6473748115) | 4.4 (189) | Free | Games | | [Neodori Forever](https://appshunter.io/ios/app/neodori-forever/id6443939648) | 4.6 (665) | Free | Games | | [Racing Limits](https://appshunter.io/ios/app/racing-limits/id1324210753) | 4.5 (2,621) | Free | Games | | [Motor Tour: Biker's Challenge](https://appshunter.io/ios/app/motor-tour-bikers-challenge/id1518895697) | 3.7 (256) | Free | Games | ## More apps by NextGen Software Limited Liability Company - [Boxing Ball](https://appshunter.io/ios/app/boxing-ball/id839833993) - [Floppy Rocket - Free Galaxy Adventure Tap Game](https://appshunter.io/ios/app/floppy-rocket-free-galaxy-adventure-tap-game/id847799770) - [Colorful Tiles: Rhythm Run](https://appshunter.io/ios/app/colorful-tiles-rhythm-run/id879320256) - [Alimento Kebab Grill](https://appshunter.io/ios/app/alimento-kebab-grill/id994018712) All apps by NextGen Software Limited Liability Company: https://appshunter.io/developer/839833996 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-29.*