Flow Link vs One Line
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Flow Link
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The flow puzzles you've played before... were they ever actually hard? Flow Link is built for people who want real puzzles — and this update is our biggest leap yet. 【 ENIGMA MODE — difficulty beyond the limits of this genre 】 For people who truly love solving: • No hints, no solve button — not even the endpoint glow when you drag. Junk-filling is blocked too. Just you and pure logic. • Color Switchers: the two dots you connect aren't the same color anymore. • Ghost Dots: some colors show extra dots, but only two of them connect. Find the decoy. • Portals, Rotors, and boards that mix several mechanics at once. • No linear gates — pick a mechanic, start on any level you like. Beat one and you've earned the right to brag. ※ Enigma access: included with VIP and Ad-Free, or watch one ad per session. 【 FREE PICK — play whatever you feel like 】 A library of levels from every mode, organized by mechanic and board size. No unlock order. ※ Same access as Enigma mode. 【 THE MAIN JOURNEY — free, with zero interstitial ads 】 Pick the style that fits you, across 22,000+ total levels: • Kids: small boards, bright colors, fun for the whole family. • Normal: a relaxed climb through a world map of 6,000+ levels. • Time Attack: the same puzzles, half the time. • Extreme: massive two-floor boards with portals, bombs, keys and arrows — the game physically blocks junk-filling as you drag, and every level is machine-verified to have exactly one solution. No interstitial ads pop up between levels, anywhere on the journey. (Optional rewarded ads exist for bonus rewards — watching one is always your choice.) Ready to find out where you rank? Download and prove it. Flow Link VIP is an optional auto-renewable subscription. VIP Pass Monthly: THB 149 per month Payment is charged to your Apple ID account at confirmation of purchase. The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the end of the current period. You can manage or cancel your subscription in your App Store account settings after purchase. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://kaisoftthailand.com/privacy
One Line
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One line. Every square. A calm, surprisingly deep path puzzle: trace the numbers in order — 1, 2, 3 — and fill the whole grid with a single stroke. A fresh daily puzzle turns spare minutes into the perfect little brain break. ■ How to play - Start your line at 1 - Pass the numbers in order: 1 → 2 → 3 … - Visit every open square exactly once (dark blocks are walls) - Finish on the last number. Drag back to erase, or touch any point on your line to redraw from there ■ Why you'll like it - Always fair: every board is checked by a solver, so there is exactly one solution — no guessing - Endless boards: puzzles are generated on your device and prepared in advance, so there's no waiting - Daily puzzle: the same board for everyone each day — build your streak - Four difficulties: gentle 6×6, 7×7, hard 8×8 and a fiendish 8×8 - Ranks: climb from Novice to Grandmaster; harder boards count for more - Progress: clears, streaks, best times and no-hint rate - Dark mode, in English and Japanese ■ Made for you if… - You want a quick, satisfying "solved!" on a commute or coffee break - You love logic puzzles but dislike ambiguous ones - You'd like a small daily habit that keeps your mind moving - You prefer a clean, quiet, grown-up design ■ Private by design - No account or sign-in - Your progress stays on your device and is never sent to a server - Puzzles are generated and played offline - The only network use is reading public App Store information to show other apps from the same developer - No third-party ads or tracking
Screenshots
Verdict
The clearest difference is ads: One Line at none against Flow Link's shown. Flow Link's advantage is update cadence (every 2 weeks vs every 2 months) and iOS requirement (15.0 vs 17.0). On price, in-app purchases and 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
Both are free to download. Flow Link sells 9 in-app purchases, starting at $3.99 per month and One Line sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Flow Link ships an update every 2 weeks, One Line every 2 months. Both last shipped on October 31, 2026.
| Parameter | Flow Link | One Line |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks — better | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 120 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | KAI SOFT COMPANY LIMITED | torankirite |
In-app purchases
Flow Link
- สิทธิ์ VIP รายเดือน$3.991 Month
- ปิดโฆษณา 1 วัน$0.99
- ปิดโฆษณา 3 วัน$0.99
- แพ็กเหรียญเล็ก$0.99
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- ปิดโฆษณา 7 วัน$1.99
- แพ็กเหรียญกลาง$1.99
- แพ็กเหรียญใหญ่$4.99
- แพ็กเหรียญยักษ์$9.99
- สิทธิ์ Lifetime VIP ตลอดชีพ$12.99
One Line
- Premium$4.99









