OKO vs Zen Falling Blocks
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
OKO
A captivating puzzle game that transforms NASA satellite images into a cosmic visual and auditory experience. Reconstruct images by precisely stopping rotating circular pieces, with increasingly complex patterns and otherworldly soundscapes.
- Hypnotizing puzzle gameplay
- NASA satellite imagery
- Otherworldly soundscapes
- Retina graphics
- Increasingly complex patterns
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* Swisscom App of the Year 2012 OKO is a hypnotising puzzle game that turns satellite images taken from the NASA database into a mesmerising journey around the Planet. The game's rich otherworldly soundscapes are composed from recordings taken aboard space shuttles. The goal is to reconstruct an image by stopping rotating circles cut out from the image. For each level, the animated pieces draw increasingly complex patterns. The challenge is to be attentive to image juxtapositions in order to stop each circles movement at the right moment. Now available on the App Store with retina graphics! "Beautiful. Engaging. Excellent transmedia incorporation of space imagery.” – Yvonne Clearwater, New Media Innovation Leader at NASA / Ames Research Center
Zen Falling Blocks
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It's a puzzle game with zen! [How to play] Move blocks up, down, left, and right to make three or more of them disappear. Each time you move them, a leaf is consumed. When you run out of the leaves, the game is over. Leaves will be replenished when six or more blocks are erased or erased in succession. Press and hold blocks to use a special skill.
Screenshots
Verdict
The clearest difference is price: Zen Falling Blocks at Free against OKO's $3.99. Zen Falling Blocks also leads on update cadence (every 2 months vs every 44 months). OKO's advantage is in-app purchases (none vs 2) and ads (none vs shown). On 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
Zen Falling Blocks is free to download; OKO costs $3.99 up front. Zen Falling Blocks sells 2 one-off in-app purchases. OKO asks for nothing beyond the download.
OKO ships an update every 44 months, Zen Falling Blocks every 2 months. The most recent releases landed on October 16, 2026 and October 17, 2026 respectively.
| Parameter | OKO | Zen Falling Blocks |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 4.0 (3 ratings) — better | — |
| Positive reviews | 71.4% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 44 months | Every 2 months — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 55 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Playables | Mihoko Araki |
In-app purchases
OKO
No in-app purchases
Zen Falling Blocks
- Infinite Life$0.99
- Zen with no ads$0.99
Questions
Is OKO free?
Is Zen Falling Blocks free?
Do OKO or Zen Falling Blocks have ads?
Which is updated more often, OKO or Zen Falling Blocks?
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