ZeroOneFlow vs Astronomy Picture
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ZeroOneFlow
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Infinity begins in binary. From the silent dance of 0 and 1, a universe unfolds. 0 and 1. Nothing more. Yet from them, everything.
Astronomy Picture
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Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. Search for the image of the day, download your favorite pictures.
Screenshots
Verdict
The clearest difference is in-app purchases: Astronomy Picture at none against ZeroOneFlow's 1. On price, update cadence, ads 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. ZeroOneFlow sells 1 one-off in-app purchase. Astronomy Picture asks for nothing beyond the download.
ZeroOneFlow ships an update every 3 weeks, Astronomy Picture fortnightly. The most recent releases landed on October 7, 2026 and October 17, 2026 respectively.
| Parameter | ZeroOneFlow | Astronomy Picture |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.2 | 15.6 — better |
| Further details — not scored | ||
| Size | 1 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Fu Ni | Edwin Mejia |
In-app purchases
ZeroOneFlow
- Tornado$0.99
Astronomy Picture
No in-app purchases
Questions
Is ZeroOneFlow free?
Is Astronomy Picture free?
Do ZeroOneFlow or Astronomy Picture have ads?
Which is updated more often, ZeroOneFlow or Astronomy Picture?
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