No.9 vs ArrayQuest
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
No.9
Immerse yourself in a tranquil puzzle experience with evolving geometric forms and a serene soundtrack. Synchronize elements in form and time to achieve deep relaxation and contemplation. This app offers a score-free, ad-free, and data-free environment for peaceful engagement.
- Tranquil puzzly vacuum
- Evolving geometric forms
- Serene, slow-paced rhythm
- Synchronize form and time
- No scores, ads, or IAPs
- Original soundtrack
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No.9 is an attempt to transport you to a tranquil puzzly vacuum, a gallery of geometric forms and figures that evolve in harmony with a serene, slow-paced rhythm, inviting deep relaxation and contemplation. Your journey involves synchronizing diverse elements in both form and time. Consistent with all my projects, this one also features no scores, no advertisements, no in-app purchases, and does not collect any data - just relax. Featuring a wonderful soundtrack created by: Bartłomiej Kołaciak
ArrayQuest
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Real computer science problems. Turned into a game. ArrayQuest transforms two classic algorithms — Maximum Submatrix and Maximum Path Sum — into addictive puzzles you can play anywhere. Use logic, intuition, and strategy to find the optimal solution hidden inside every grid. ---- Two Game Modes ---- ▶ Max Submatrix Drag across the grid to select a rectangle with the highest total sum. Pack in as many positive numbers (blue) as you can, and cut out the negatives (red). Grids grow larger as you advance — your thinking has to grow with them. ▶ Max Path Sum Slide your finger from the top-left cell to the bottom-right, tracing the path with the maximum sum. You can only move right or down — deceptively simple, strategically deep. Reach the goal and the game judges instantly. ---- Features ---- • Stage System: grids get bigger, challenges get sharper • Scoreboard: Record your clear times and chase your personal best • Rules Guide: Clear explanations for each mode, with worked examples • Swipe Input: Smooth, intuitive gesture controls throughout Can you find the optimal solution?
Screenshots
Verdict
The clearest difference is price: ArrayQuest at Free against No.9's $1.99. ArrayQuest also leads on update cadence (daily vs every 6 weeks). On ads, in-app purchases, device support and iOS requirement 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
ArrayQuest is free to download; No.9 costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
No.9 ships an update every 6 weeks, ArrayQuest daily. The most recent releases landed on September 23, 2026 and September 8, 2026 respectively.
| Parameter | No.9 | ArrayQuest |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 5.0 (12 ratings) — better | — |
| Positive reviews | 92.6% of reviews | — |
| Number of ratings | 12 — better | — |
| Update frequency | Every 6 weeks | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 175 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | Maciej Targoni | Applane |
In-app purchases
No.9
No in-app purchases
ArrayQuest
No in-app purchases









